Conforti hydraulic cylinder catalogue — choose a series
Browse the folders just like in a file manager: series → Catalogues, Parameters, Applications, Accessories, Mounting, CAD configurator. Everything verified against the Conforti catalogue. No searching required — the tree on the left takes you exactly where you need to go.
The TechHub content was prepared and verified against the Conforti catalogue by Adam Tomášek, sales & technical representative and authorized distributor of Italian Conforti Oleodinamica hydraulic cylinders for CZ, SK and the EU since 2023. Contact →
Series comparison — pros (+) and cons (−)
CD / DK / MD tie-rod · 160 bar
lowest price, widest mounting range (14 variants)
universal for automation and handling
MD version senses the piston position
only 160 bar — not enough for higher pressure
lower stiffness on long strokes (tie-rods stretch)
HD / HK counterflange · 210 bar
210 bar at the same dimensions as CD/DK
higher stiffness — no tie-rod stretch
suitable for long strokes and cyclic loads
more expensive than CD/DK
narrower mounting choice (10 variants, no intermediate trunnions H)
DP / TP ISO 6022 · 250 bar
250 bar and stroke up to 6000 mm
double bronze guide — radial load and shocks
suitable for heat, dust and steelworks
most robust and most expensive — overkill for ordinary motion
only 8 mounting variants (ISO 6022)
RP / MP / RQ compact
small dimensions for tight installation spaces
RQ steel withstands shocks and 250 bar; MP allows a sensor
short stroke (standard up to 100 mm)
RP/MP aluminium sensitive to pressure peaks and shocks
Servo TD/TK/TH/TX/TP transducer
continuous position measurement without homing
control across the whole stroke, CETOP for a valve on the cylinder
higher price and more complex integration
seals L / H / G only (not S)
About us — hydraulika.store
authorised Conforti distributorCZ / SK / EUISO 9001
We help industrial companies cut production downtime, secure fast deliveries and replace failed components with Conforti hydraulic cylinders.
Why Conforti through hydraulika.store
Authorised distributor
Genuine Conforti cylinders with full manufacturer's warranty. No re-exports or aftermarket. A direct distribution agreement.
ISO 6020/2 counterflanges
A counterflange design instead of tie-rods transmits higher forces and pressures than tie-rod cylinders — for more demanding loads.
ISO 9001 since 2008
Conforti has held a certified quality management system to ISO 9001 for 18+ years. Periodically validated business processes.
Custom long strokes
The HD / HK / TH / TX series can be ordered with long strokes to suit the application — a made-to-order length to specification.
100% individual testing
Every cylinder is subjected to an individual test protocol to ISO 10100 before delivery. Records kept on file.
Cushioning and air bleed
Adjustable end-of-stroke cushioning and air-bleed screws for smooth and safe cylinder operation.
Made in Italy
Manufactured in Monza (Lombardy). A proven design to ISO 6020/2 and ISO 6022, DIN 24554 / 24333.
Express delivery in 48 h
For selected HD / HK models, express delivery within 48 hours; standard orders 10–15 working days straight from production.
Why companies choose to work with us
Fast delivery
Express delivery within 48 hours on selected models. Standard orders 10–15 working days thanks to direct logistics from the manufacturer.
Replacing another manufacturer
Cylinders fully compatible with Parker Hannifin, Bosch Rexroth and others to ISO standards — without rebuilding the equipment.
Service and spare parts
As an official distributor we provide direct access to seals, guides and spare parts with a compatibility guarantee.
B2B partner approach
Technical support and preferential pricing for toolrooms, maintenance departments and OEM suppliers.
Conforti manufactures double-acting cylinders to ISO 6020/2 and ISO 6022,
which define the dimensions and mounting so that the cylinders are mutually interchangeable across manufacturers
(Parker, Bosch Rexroth, Atos).
Interchangeability and standardisation
Standardised dimensions and mounting mean you can easily replace a cylinder with another branded one without modifying the machine. The end of dependence on a single supplier. Replacing Parker/Bosch/Atos →
Modular vs. welded
Conforti's modular design disassembles without special tools — replace a seal or part from a KIT set in stock. A welded cylinder is a write-off once damaged. Modular vs. welded →
Stock availability
Components and KIT sets (seals, sensors, mounting brackets) are in stock in every variant — solve a repair or replacement quickly and without large inventory at your site.
Construction — tie-rod vs. counterflange
The two main ISO 6020/2 designs differ in how they hold the cylinder body together — this determines both the maximum pressure and the stiffness. Understanding the difference helps when selecting a series below.
Tie-rod (CD/DK/MD)
The body is held by 4 tie-rods. Inexpensive and universal, 160 bar. On long strokes the tie-rods stretch elastically under load and the stiffness drops.
Counterflange (HD/HK)
Counterflanges replace the tie-rods — eliminating their stretch. Higher stiffness and 210 bar at the same dimensions as CD/DK. For higher pressure and long strokes.
Heavy-duty ISO 6022 (DP/TP)
The most robust design, 250 bar, double bronze piston guide. For radial loads, shocks, high temperatures and contamination.
When to choose which series — pros and cons
Pros and cons of each series — what each one offers and where its limits lie. Based on the Conforti catalogue and the configurator logic.
CD / DK / MD · tie-rod 160 bar
lowest price, widest mounting range (14 variants)
universal for ordinary automation and handling
MD version senses the piston position
only 160 bar — not enough for higher pressure
lower stiffness on long strokes (tie-rods stretch)
HD / HK · counterflange 210 bar
210 bar at the same dimensions as CD/DK
higher stiffness — no tie-rod stretch
suitable for long strokes and cyclic loads
more expensive than CD/DK
narrower mounting choice (10 variants, no intermediate trunnions H)
DP / TP · ISO 6022, 250 bar
250 bar and stroke up to 6000 mm
double bronze guide — handles radial load and shocks
suitable for heat, dust and steelworks
most robust and most expensive — overkill for ordinary motion
only 8 mounting variants (ISO 6022)
RP / MP / RQ · compact
small dimensions for tight installation spaces
RQ steel withstands shocks and 250 bar; MP allows a sensor
short stroke (standard up to 100 mm)
RP/MP aluminium sensitive to pressure peaks and shocks
Servo TD/TK/TH/TX/TP
continuous position measurement without homing (transducer)
control across the whole stroke, CETOP for a valve on the cylinder
higher price and more complex integration
seals L/H/G
Not sure? The configurator rules out unsuitable series itself based on your input and recommends the parameters — the rules come from the Conforti catalogue.
Have a specific operation? — We have a proven solution
Pick the situation that matches your operation. For each you will find a recommended series and configuration verified against the Conforti catalogue.
CD / MD + NK · RRX
Food, pharmaceutical, washing with aggressive agents?
Why: frequent rinsing and cleaning chemicals attack the chrome on the rod and the outer surfaces — corrosion then destroys the seals and causes leaks. For corrosive environments the configurator therefore keeps the pressure to 160 bar and applies corrosion protection.
Recommended options: nickel-plating NK (1,200 h in salt spray, available for 7 of the 14 mountings — A, B, D, E, Q, R, S) and a stainless chromed rod RRX. Seal S for maximum sealing.
Foundries, steelworks, high temperatures and contamination?
Why: above +80 °C standard NBR seals fail and scale with dust abrades the wiper and the rod. The heavy-duty series with bronze guides also withstands shocks and high loads in steelworks.
Recommended options: the DP series (ISO 6022, 250 bar), seal H (Viton®) up to +150 °C which also tolerates phosphate esters, a hardened rod and a metal wiper RM against scale.
Why: side forces from misalignment push the rod against the guide bushing — on an ordinary cylinder this wears the seals and causes premature failure. DP therefore has a more robust guide.
Recommended options: the DP series with a double bronze piston guide and a long rod guide bushing — it handles radial loads that would damage a standard cylinder. For a long stroke (over 2,000 mm) combined with high speed, add the bushing drain SD. For swinging motion on ISO 6022, choose a clevis mounting (C/D/K/S) + bracket FD.
Very long stroke or higher pressure at the same dimensions?
Why: in a tie-rod design the tie-rods stretch elastically under pressure — the longer the stroke, the greater the loss of stiffness. Counterflanges remove this problem and carry higher pressure in the same envelope.
Recommended options: the HD/HK series (210 bar instead of 160 at the same dimensions as CD/DK). For a long stroke (over 2,000 mm) combined with high speed, add the bushing drain SD; the configurator adds the spacer SJ itself.
Why: end-of-stroke sensors report only the extreme positions — for control across the whole stroke you need continuous feedback. A magnetostrictive transducer gives the absolute position without homing at start-up.
Recommended options: a TD/TK/TH/TX/TP servo cylinder with a transducer (MA/digital output), a CETOP plate for a valve directly on the cylinder. Note: servo cylinders use seals L/H/G, not S.
⚠ With magnetic sensors (MD: SH/SR, MP: SP) watch out for interference: ferromagnetic masses and strong fields (motors, coils, inverters) distort the signal, cables over 3 m and vibration cause false contacts. In such an environment, prefer a transducer or shield the sensor.
Why: a standard cylinder will not fit in a tight installation space. Aluminium compact cylinders are light but sensitive to shocks and pressure peaks — the steel version solves that.
Recommended options:RP/MP (aluminium, 160 bar) for light applications and clamping, RQ (steel, 250 bar) for shocks and cyclic loads. Standard strokes 20/50/80/100 mm; MP allows a REED sensor SP (3–30 V AC/DC).
Conforti supplies mounting counterparts and rod ends as separate KIT parts. Each accessory is tied to a specific mounting type — below is an overview of when to use which. The configurator and the accessories pop-up offer the exact sizes by bore.
CS · ISO 6982 / 8132
Spherical eye (economical)
An articulated spherical eye with an internal thread, screwed onto the male thread of the rod. The spherical mounting compensates for angular misalignment — suitable when the cylinder tilts as it moves. A more economical alternative to TS.
TS · ISO 8133 / DIN 24555
Spherical eye (higher capacity)
An articulated spherical eye with an internal thread, a different design series from CS — it has a higher load capacity for the same rod thread. It also screws onto the male thread of the rod and compensates for angular misalignment.
CF · clevis
Rod clevis
A clevis end on the male thread of the rod. It connects the rod end with a pin to a counterpart in a single plane — a rigid mounting where no side tilting is expected. The configurator offers the size by bore.
LK · ISO 8132
Trunnion brackets
A pair of trunnion brackets for a cylinder with mounting G (front trunnions MT1), H (intermediate trunnions MT4) or L (rear trunnions MT2) — the trunnions let the cylinder swing about its axis.
LD · ISO 8133 / DIN 24556
LD angle bracket
A counterpart for a cylinder with mounting D (MP5) on ISO 6020/2 — it allows the whole cylinder to swing. Standard combination: mounting D + LD bracket.
FD · ISO 8132
FD straight bracket
A straight bracket with a rear clevis for clevis mountings C/D/K/S on ISO 6022 (heavy-duty DP/TP). For high forces, where the cylinder is mounted via a clevis at the cap end.
Swinging cylinder motion (tilting): on ISO 6020/2 choose a trunnion mounting G/H/L + bracket LK, or mounting D (spherical eye) + angle bracket LD. On ISO 6022 (DP/TP), a clevis mounting C/D/K/S + bracket FD.
Connecting the rod end: a spherical eye CS (economical) or TS (higher capacity) — both screw onto the male thread of the rod and compensate for angular misalignment.
Size by bore: in the summary the configurator offers the exact bracket or eye size for the chosen mounting and bore — you do not have to look it up by hand.
Designing a cylinder from start to finish — an example for each series
Six model briefs show how an operational need turns into a specific configuration — and above all why each choice is made. The reasoning comes from the Conforti FAQ and the configurator rules. The exact SKU and CAD are always generated by the configurator.
CD → MD · ISO 6020/2 · 160 bar
Clamp feed on an assembly line
Brief: a secondary motion — feeding and pressing a part clamp before an assembly operation, clamping force ≈ 50 kN, stroke 300 mm, pressure 160 bar, clean indoor operation, speed up to 0.3 m/s, end-position signalling to the PLC (24 V DC system).
SeriesCD (160 bar). Why: standard industry, ordinary environment, pressure up to 160 bar and no radial load — the more robust HD/HK or DP bring no benefit and only add cost. Because the brief calls for position reporting, we extend CD to the MD version (see the Sensors step).
Piston boreØ 63 mm. Why: the piston area at 160 bar gives ≈ 50 kN (F = p × A). We choose the nearest catalogue bore with a margin.
RodØ 36 mm. Why: buckling stability checked for the pushing force and 300 mm stroke — a thinner rod could buckle.
MountingFront flange A (ME5). Why: the clamp presses on the axis and a flange at the front transmits the axial force straight into the frame. It is important to ensure alignment so that no side load arises (that would wear the guide and seals).
ME5 flange
CushioningBoth ends K. What it is: adjustable end-of-stroke cushioning slows the piston before it seats and ensures a soft, cushioned approach — not a hard impact against the cap. Options: V (front only), Z (rear only), K (both ends). Why K: the clamp moves in and returns at both ends, so we cushion both. It is set with a screw to suit the load and has a quick restart (per the Conforti FAQ).
Air bleedSK. What it is: an air-bleed valve to release the air trapped in the cylinder before start-up — otherwise it causes jerky, springy motion. Options: SV (front), SZ (rear), SK (both ends). Why SK: we bleed both chambers of the double-acting cylinder. Recommended on almost every new cylinder. (Cushioning and air bleed are two separate code fields.)
SpacerNot needed. Why: the 300 mm stroke is below the 1,000 mm threshold; otherwise the configurator would add the spacer itself.
SensorsExtension CD → MD + sensor SH (PNP). What it is: MD is the CD series with a magnetic piston (and a stainless tube) — the same dimensions and options, just enabling position detection. The system is 24 V DC with PLC inputs → we choose SH (PNP, 6–30 V DC, solid-state), more suitable for a PLC than the relay-based SR. For AC/higher voltage (24–110 V AC/DC) the SR (REED) would suit. Without a sensor requirement it would stay a plain CD.
SealS (high sealing). Why: oil, normal temperature and speed up to 0.5 m/s — maximum sealing with zero leakage.
ResultIndicatively MD 63 / 36 A 300 S + cushioning K, air bleed SK, sensor SH (PNP) — the code reads MD because we extended CD with a magnetic piston.Tip: the sensors only work if the stroke is greater than the catalogue minimum — the configurator checks this.
MD · ISO 6020/2 · sensors
Stop positioning with reporting to the PLC
Brief: force ≈ 30 kN, stroke 250 mm, pressure 160 bar, 2 end positions must be reported to the PLC, 24 V DC control system, ordinary machine environment without strong magnetic fields.
SeriesMD (magnetic piston). Why: MD has the same dimensions and options as CD/DK, but the magnetic piston in a stainless tube enables position sensing without intervening in the cylinder.
Piston boreØ 50 mm. Why: at 160 bar it gives over 30 kN with a margin.
SensorSH (PNP, 6–30 V DC). Why: a 24 V DC PLC → a solid-state PNP sensor is contactless and reliable for frequent cycles. SR (REED, 3–110 V AC/DC) would be for AC/higher voltage, but a REED contact is more sensitive to vibration.
Number of points2 sensors. Why: the end positions are enough. For positioning, up to 8 points along the cylinder can be added. The sensors are fixed to the tie-rods with STA/STB/STC/STD brackets by bore.
InterferenceWatch the surroundings. Why (per catalogue): ferromagnetic masses and strong magnetic fields (motors, coils, inverters) may interfere; cables over 3 m and vibration cause false contacts. The sensors are for end-position detection, not continuous measurement.
Cushioning + sealK + seal S. Why: a cushioned approach at both ends and maximum sealing at low speed.
ResultIndicatively MD 50 / 28 A 250 S + 2× sensor SH (PNP), cushioning K.Tip: for continuous position measurement across the whole stroke, prefer a servo cylinder with a transducer.
HD · ISO 6020/2 · 210 bar
Lifting platform with a long stroke
Brief: pushing force ≈ 120 kN, stroke 2,200 mm, available pressure 210 bar, higher stiffness requirements, indoor operation.
SeriesHD (210 bar). Why: on a long stroke the CD/DK tie-rods stretch elastically under pressure and lose stiffness. HD/HK counterflanges remove this and additionally carry 210 bar instead of 160 in the same envelope (per the Conforti FAQ).
Piston boreØ 100 mm. Why: at 210 bar it gives over 160 kN — a margin for the platform.
RodØ 70 mm (thicker). Why: at a 2,200 mm stroke buckling stability is decisive — a thicker rod prevents buckling.
Bushing drainSD. Why: for a stroke over 2,000 mm (and at high speeds) Conforti recommends draining the guide bushing — it carries away oil that would otherwise build up behind the bushing and block the full stroke. Otherwise there is a risk of pressure build-up and restricted motion.
SpacerSJ100 (added by the configurator). Why: at a stroke of 1,500–2,000 mm it adds a spacer for stability — handled automatically by length.
MountingFlange A (ME5) / B (ME6) or trunnions G (MT1) / L (MT2) + LK brackets. Why: per the platform mounting; on a long stroke, trunnions with a swinging mounting help compensate for small misalignments — a pair of LK brackets goes with the trunnions.
MT2 trunnions (L)+LK bracket
Cushioning + sealK + seal L. Why: a cushioned approach at both ends; seal L (low friction) up to 1 m/s for smoother and faster motion.
ResultIndicatively HD 100 / 70 A 2200 L + cushioning K, air bleed SK, SD, spacer SJ100.Tip: the bronze guide bushing reduces friction and protects the rod from scratching — keeping sealing over the whole service life.
DP · ISO 6022 · 250 bar
Moving a forging on a manipulator at a forge
Brief: moving a hot forging with a manipulator between operations, force ≈ 120 kN, stroke 600 mm, radiant heat over 100 °C, dust and scale, arm tilting.
SeriesDP (250 bar). Why: this is not a pressing force but a secondary handling motion in the demanding environment of a forge. The heavy-duty series with a double bronze guide withstands radiant heat, scale and side loading from the arm motion that would damage an ordinary cylinder.
Piston boreØ 80 mm. Why: moving the load needs a smaller bore than a press — at 250 bar it gives up to 120 kN with a margin.
RodHardened chromed or Nikrom. Why: abrasive dust and scale wear down ordinary chrome — a harder surface significantly extends the service life.
EnvironmentSeal H (Viton®) + metal wiper RM. Why: above +80 °C standard NBR seals fail — Viton withstands up to +150 °C. A metal wiper removes scale from the rod better than a rubber one (per the Conforti FAQ for contaminated environments).
MountingSwivel eye D (MP6) or intermediate trunnions H (MT4). Why: the manipulator arm tilts — a swinging mounting (clevis with a ball-joint eye) or a trunnion compensates for the angular motion and prevents side loading of the rod.
ISO 6022 mounting
Cushioning + spacerCushioning K; no spacer. Why: a cushioned approach prevents shocks at the end of stroke when moving the load. On ISO 6022 the threshold without a spacer is as high as 1,500 mm, so 600 mm is fine.
ResultIndicatively DP 80 / 56 D 600 H + cushioning K, RM, hardened rod.Tip: the Viton seal also tolerates phosphate esters — suitable for fire-resistant fluids in steelworks too.
RQ · compact · 250 bar
Mould clamping in a confined space
Brief: clamping force ≈ 40 kN, short stroke 50 mm, limited space, cyclic shock loading.
SeriesRQ (steel, 250 bar). Why: aluminium RP/MP are sensitive to pressure peaks, shocks and cyclic loading — steel RQ is more resistant and withstands higher pressure. It is therefore safer for clamping with shocks.
Piston boreØ 50 mm. Why: at 250 bar it provides the required clamping force even in small dimensions.
Stroke50 mm. Why: a standard compact stroke (20/50/80/100 mm); others only on request.
MountingThreaded holes in the face. Why: a compact cylinder is usually screwed directly into the clamping fixture — it saves space and needs no separate bracket.
SealL (low friction). Why: seal S is not available on RQ — the configurator chooses L automatically.
ResultIndicatively RQ 50 / 28 50 L — a compact steel clamping cylinder.Tip: if you need a position sensor on a compact cylinder, choose the aluminium MP series with the SP sensor (REED, 3–30 V AC/DC).
TH · servo · ISO 6020/2 · 210 bar
Positioning axis on a test rig
Brief: force ≈ 80 kN, stroke 500 mm, pressure 210 bar, continuous position feedback and control required.
SeriesTH (servo, 210 bar). Why: end-of-stroke sensors report only the extreme positions — for control across the whole stroke, continuous feedback is required. A servo cylinder has it built in.
Piston boreØ 80 mm. Why: at 210 bar it gives over 100 kN with a margin.
TransducerMagnetostrictive, MA output. Why: it measures the absolute position without homing at start-up and with high resolution. We choose the output to suit the control system (analogue MA or digital).
ValveCETOP plate. Why: the servo valve mounts directly on the cylinder (ISO 4401) — a shorter oil path = faster and more accurate control.
SealL (low friction). Why: a servo cylinder uses seals L/H/G, not S — low friction is essential for smooth control.
ResultIndicatively TH 80 / 56 MA A 500 L + CETOP plate, transducer MA.Tip: on a long stroke combined with high speed, add the bushing drain SD for smooth and stable motion.
Switch on adjustable end-of-stroke cushioning. Hardened steel slows the piston before it seats and prevents mechanical shocks — it is set with a screw to suit the mass of the load and has a quick restart. Choose V (front), Z (rear) or K (both ends) by impact direction. At higher speeds, cushioning does not replace an external mechanical stop.
Air bleed · SV / SZ / SK
Does the cylinder run jerkily or springily (compressible motion)?
That is usually air trapped in the cylinder — an air-bleed valve solves it, releasing the air before commissioning. We recommend it on almost every new cylinder. Choose SV / SZ / SK. Note: cushioning and air bleed are two separate fields in the code — they can be combined independently.
Spacer · SJ50–SJ200
Have a long stroke and worried about sagging?
On long strokes a spacer (SJ) ensures stability. You do not have to handle it by hand — the configurator adds it automatically by length. On CD/DK: 1000–1500 mm → SJ50, 1500–2000 → SJ100, 2000–3000 → SJ150, over 3000 → SJ200. On ISO 6022 (DP) the threshold without a spacer is as high as 1500 mm.
Sensors · SH / SR / SP
Need to report the piston position to the PLC?
For end-position signalling choose a series with sensors. MD (magnetic piston): SH (PNP, 6–30 V DC) or SR (REED, 3–110 V AC/DC). MP (compact): SP (REED, 3–30 V AC/DC — note, NOT 24 V DC). CD/DK/HD/HK/DP have an inductive sensor in the heads (requires cushioning in the same direction). For position measurement across the whole stroke, choose a servo cylinder.
Which seal to choose by medium and speed
The seal determines the maximum speed, temperature range and medium compatibility. Mind the availability: seal S is not for the RQ series or servo cylinders. For dusty environments, metal wipers are also available.
S
High sealing
Maximum sealing (NBR + PTFE). For slow, precise motion with a zero-leakage requirement.
up to 0.5 m/s
−20 / +80 °C
hydraulic oil
NOT for RQ or servo
L
Low friction
Low friction (NBR + PTFE). A universal choice for faster and more frequent cycles.
up to 1 m/s
−20 / +80 °C
hydraulic oil
universal
H
Viton®
For high temperatures and phosphate esters. Choose for hot operations and foundries.
up to 1 m/s
−20 / +150 °C
oil + phosphate esters
high temperatures
G
HFC fluid
For water emulsions and HFC fluids (NBR + PTFE CG). Choose for fire-resistant media.
up to 1 m/s
−20 / +80 °C
HFC fluids
water emulsions
Step-by-step guides
How to choose a cylinder — 5 inputs, SKU breakdown and replacement
A hydraulic cylinder is selected from five inputs: required force, operating pressure, stroke, speed and the environment including mounting. These yield a specific Conforti SKU, for example CD 50/28 A 500 S.
1–2 · Force and pressure
The required force determines the piston bore, the pressure defines the series: 160 bar (CD/DK/MD), 210 bar (HD/HK), 250 bar (DP/TP). Higher pressure = a smaller cylinder for the same force.
3–4 · Stroke and speed
Stroke is the length of motion in mm; above 2000 mm choose counterflange (HD/HK) or ISO 6022. Speed determines the seal: S up to 0.5 m/s, L/H/G up to 1 m/s.
5 · Environment and mounting
Temperature and media select the seal (H Viton up to +150 °C, G HFC) and treatments (NK nickel-plating). The installation determines the mounting (A front flange).
Three typical applications and specific Conforti SKUs — all bores, rods and limits verified against the Conforti catalogue.
Clamp feed · 160 bar
CD 50/28 A 500 S
A secondary motion on an assembly line — feeding a part clamp before an operation. A tie-rod double-acting ISO 6020/2 cylinder. Bore 50 mm, rod 28 mm cover the clamping force, mounting A (front flange ME5), stroke 500 mm, seal S up to 0.5 m/s, −20/+80 °C.
Feeder / extension · 210 bar
HD 80/56 A 800 S
A feeder or sliding axis with higher force and a longer stroke. A counterflange ISO 6020/2 cylinder, 210 bar. Bore 80 mm, rod 56 mm, the counterflange design is more stable on long strokes, mounting A, stroke 800 mm, seal S.
Moulding hold-down · compact
RP 40/22 X 50 S
Holding down a moulding on an injection moulding machine — a short pressing motion in a confined space. An aluminium compact RP cylinder (light automation, Ø40 up to 160 bar). Bore 40 mm, rod 22 mm, side ports X for a tight installation, stroke 50 mm, seal S up to 0.5 m/s.
SKU breakdown position by position
The example CD 50/28 A 500 S is read left to right:
CD50/28A500S
Position
What it means
Example value
Series
Cylinder series / standard and construction
CDDKMDHDDPRP
Bore / rod
Piston / rod diameter in mm
50/2880/56125/90
Mounting
Mounting type (letter per ISO)
A front flange, B rear, E foot, D eye
Cushioningoptional
Cushioning at the end positions
V front, Z rear, K both ends
Stroke
Length of rod travel in mm
5008001000
Spacerby stroke
Spacer for strokes from 1000 mm
SJ 50SJ 100SJ 150
Seal
Set by speed and medium
S 0.5 m/s, L low-friction, H Viton, G HFC
Air bleedoptional
Air-bleed valves
SV front, SZ rear, SK both ends
Rod endoptional
Thread / eye at the end
SF internal thread, ST eye, SL DIN 24554
Sensorsoptional
Piston position sensing
SH PNP 6–30 V DC, SR REED 3–110 V AC/DC, SP (MP)
PLUS optionsin order
Special treatments PQ → RM → NK
PQ heavy-duty piston, RM metal wiper, NK nickel-plating
Replacing Parker / Bosch / Atos — parametrically
ISO 6020/2 and ISO 6022 are cross-manufacturer standards — a Conforti cylinder of the same standard and dimensions is dimensionally interchangeable (drop-in) for a Parker, Bosch Rexroth or Atos cylinder. The replacement is found parametrically, not by type number.
Parameter
How to find it on the original cylinder
Matching Conforti series
Bore (Ø piston)
From the type plate / catalogue, or measure the inner diameter
Ø 25–200 mm across the portfolio — see the series ranges below
Rod (Ø rod)
Measure; paired with the bore in the standard
The catalogue bore/rod pairing of the given series
Operating pressure
Plate / documentation (bar)
≤160 → CD/DK/MD · ≤210 → HD/HK · ≤250 → DP/TP
Standard
Tie-rods = ISO 6020/2 · heavy-duty = ISO 6022
ISO 6020/2 → CD/HD · ISO 6022 → DP/TP
Mounting
Compare the ISO type (ME5, MS2, MP5…)
The same ISO mounting = the same mounting dimensions
Connection (ports)
Port size and position (G thread)
The same standard = compatible spacing and threads
hydraulika.store does not list specific Parker / Bosch type numbers as 1:1 equivalents — we verify the replacement by parametric match. More on replacing Parker/Bosch/Atos →
Conforti hydraulic cylinder catalogues for download (PDF)
Official technical catalogues from the manufacturer Conforti Oleodinamica — dimensions, parameters, mounting and coding (in English). For selection and configuration use the configurator, to order use the enquiry.
A complete overview of the manufactured piston-diameter (bore) and rod combinations per the Conforti catalogue. Build the exact configuration and SKU in the configurator.
CD / DK / MD — tie-rod, ISO 6020/2 (160 bar)
Bore (Ø piston)
Available rods (Ø)
Ø 25 mm
Ø 12 mm · Ø 18 mm
Ø 32 mm
Ø 14 mm · Ø 18 mm · Ø 22 mm
Ø 40 mm
Ø 18 mm · Ø 22 mm · Ø 28 mm
Ø 50 mm
Ø 22 mm · Ø 28 mm · Ø 36 mm
Ø 63 mm
Ø 28 mm · Ø 36 mm · Ø 45 mm
Ø 80 mm
Ø 36 mm · Ø 45 mm · Ø 56 mm
Ø 100 mm
Ø 45 mm · Ø 56 mm · Ø 70 mm
Ø 125 mm
Ø 56 mm · Ø 70 mm · Ø 90 mm
Ø 160 mm
Ø 70 mm · Ø 90 mm · Ø 110 mm
Ø 200 mm
Ø 90 mm · Ø 110 mm · Ø 140 mm
HD / HK — counterflange · TH / TX — servo (210 bar, ISO 6020/2)
Bore (Ø piston)
Available rods (Ø)
Ø 50 mm
Ø 22 mm · Ø 28 mm · Ø 36 mm
Ø 63 mm
Ø 28 mm · Ø 36 mm · Ø 45 mm
Ø 80 mm
Ø 36 mm · Ø 45 mm · Ø 56 mm
Ø 100 mm
Ø 45 mm · Ø 56 mm · Ø 70 mm
Ø 125 mm
Ø 56 mm · Ø 70 mm · Ø 90 mm
Ø 160 mm
Ø 70 mm · Ø 90 mm · Ø 110 mm
Ø 200 mm
Ø 90 mm · Ø 110 mm · Ø 140 mm
TD / TK — servo, ISO 6020/2 (no Ø 25/32 — the transducer needs space)
Bore (Ø piston)
Available rods (Ø)
Ø 40 mm
Ø 18 mm · Ø 22 mm · Ø 28 mm
Ø 50 mm
Ø 22 mm · Ø 28 mm · Ø 36 mm
Ø 63 mm
Ø 28 mm · Ø 36 mm · Ø 45 mm
Ø 80 mm
Ø 36 mm · Ø 45 mm · Ø 56 mm
Ø 100 mm
Ø 45 mm · Ø 56 mm · Ø 70 mm
Ø 125 mm
Ø 56 mm · Ø 70 mm · Ø 90 mm
Ø 160 mm
Ø 70 mm · Ø 90 mm · Ø 110 mm
Ø 200 mm
Ø 90 mm · Ø 110 mm · Ø 140 mm
DP — heavy-duty · TP — servo, ISO 6022 (250 bar)
Bore (Ø piston)
Available rods (Ø)
Ø 50 mm
Ø 32 mm · Ø 36 mm
Ø 63 mm
Ø 40 mm · Ø 45 mm
Ø 80 mm
Ø 50 mm · Ø 56 mm
Ø 100 mm
Ø 63 mm · Ø 70 mm
Ø 125 mm
Ø 80 mm · Ø 90 mm
Ø 140 mm
Ø 90 mm · Ø 100 mm
Ø 160 mm
Ø 100 mm · Ø 110 mm
Ø 200 mm
Ø 125 mm · Ø 140 mm
RP / MP / RQ — compact (stroke up to 100 mm)
Bore (Ø piston)
Available rods (Ø)
Ø 25 mm
Ø 18 mm
Ø 32 mm
Ø 22 mm
Ø 40 mm
Ø 22 mm
Ø 50 mm
Ø 28 mm
Ø 63 mm
Ø 28 mm
Ø 80 mm
Ø 36 mm
Ø 100 mm
Ø 45 mm
Frequently asked questions by series
Series-specific answers — they complement the general FAQ below. All verified against the Conforti Oleodinamica catalogue.
CD / DK / MD
In which applications are ISO 6020/2 tie-rod cylinders used? In industrial lines and machines requiring precise and powerful linear motion with high reliability — sheet-metal processing, handling and lifting equipment, automation lines, special machines.
What does it mean that the cylinders comply with ISO 6020/2? The ISO 6020/2 standard defines the dimensions, mounting and design criteria for tie-rod hydraulic cylinders with a nominal pressure of 160 bar. It ensures interchangeability and conformity with international standards.
What is the operating pressure of tie-rod cylinders? A nominal 160 bar, tested at 240 bar per ISO 10100. This ensures maximum strength and operating safety.
What is adjustable end-of-stroke cushioning for? It prevents mechanical shocks and is adjustable to the specific load. Hardened steel with a quick-restart system ensures a long service life.
What are the production lead times for custom cylinders? Our production organisation allows a custom cylinder to be prepared within extremely short lead times — up to 48 hours in urgent cases.
Which seals are available? High sealing, low friction, high temperatures and special fluids. Metal wipers are also available for better removal of dirt from the rod in contaminated environments.
Are all cylinders tested before delivery? Yes, all Conforti tie-rod cylinders undergo a functional test at 240 bar per ISO 10100 — ensuring reliability, safety and consistent performance.
Why do Conforti cylinders have a bronze rod guide? Bronze reduces friction during rod motion and protects the rod surface from scratching. This maintains the sealing capability of the seals and prevents leakage.
HD / HK
In which applications are HD cylinders used? In applications with long strokes (over 2000 mm) and higher pressures — handling systems, slow cylinders requiring stability, automation lines, drives for machine tools and forming machines.
Why choose ISO 6020/2 counterflanges instead of tie-rod cylinders? Counterflange cylinders offer higher stability for long strokes by eliminating tie-rod stretch under load. They allow higher operating pressures of 210 bar (vs 160 bar on CD/DK) while keeping the same ISO 6020/2 dimensions.
What is the operating pressure of HD cylinders? A nominal 210 bar, tested at 315 bar per ISO 10100. For extreme loads above 250 bar, consider DP (ISO 6022).
Which control systems can be connected? Versions with end-of-stroke proximity sensors in the cylinder heads or with linear position transducers (TH/TX servo versions) are available. CETOP plates allow direct mounting of ISO 4401 valves.
Which bores are available? HD in standard ISO 6020/2 dimensions — 50 to 100 mm. The HK variant for Ø125–200 mm.
What is adjustable cushioning for? HD-HK cylinders can be fitted with cushioning with a quick-restart system. It prevents shocks at the ends of stroke, adjustable to the specific load.
How do I choose the most suitable cylinder? Our configurator guides you step by step through choosing the most suitable cylinder with configuration validation. You can download 2D and 3D models with full technical documentation for immediate integration into your project.
What are the production lead times for custom HD/HK? Up to 48 hours in urgent cases thanks to the production organisation.
Why a bronze rod guide? Bronze reduces friction and protects the surface from scratching — maintaining the sealing capability.
Which seals are available? High sealing, low friction, high temperatures and special fluids. Metal wipers for contaminated environments.
DP / TP
In which applications are DP cylinders used? DP cylinders excel in rolling mills, forging presses and handling systems in steelworks — resistant to high temperatures, contaminants and intense mechanical stress. In presses, heavy machine tools and shearing machines they provide stability to maintain dimensional accuracy under high load.
What does it mean that the cylinders comply with ISO 6022? The ISO 6022 standard defines the dimensions, mounting and design criteria for hydraulic cylinders with an operating pressure of 250 bar. It ensures interchangeability and conformity with international standards.
What is the operating pressure of ISO 6022 cylinders? A nominal 250 bar, tested at 375 bar per ISO 10100. At the same piston diameter they achieve significantly higher forces than ISO 6020/2 cylinders.
When to choose a DP cylinder? When operating pressures reach 250 bar, when significant radial loads are present, or in particularly demanding environments. The bronze guide offers higher wear resistance.
How do DP cylinders handle radial loads? DP has a double bronze guide system on the piston plus a long bronze rod guide. This combination handles unexpected radial loads from difficult operating conditions that would endanger standard cylinders. Particularly useful in applications with misalignment or side stress.
What is the advantage of the bronze guide? Higher service life, lower friction and better handling of radial loads compared with standard guides. Particularly useful with misalignment and side stress.
Can control systems be integrated? Yes. We offer versions with proximity sensors, CETOP plates for control valves and servo cylinder versions (the TP series) with magnetostrictive linear position transducers.
What is adjustable cushioning for? DP can be fitted with cushioning with a quick-restart system. It prevents mechanical shocks at the ends of stroke and is adjusted to the specific requirements and load.
What are the production lead times for DP cylinders? Our extensive component stock enables extremely fast production — up to 48 hours in urgent cases.
Are spare parts quickly available? Yes, spare parts are available from stock with a fast service for emergencies. Complete seal replacement sets are immediately available, enabling planned maintenance without long downtime.
Which seals are available? High sealing, low friction, high temperatures and special fluids. Metal wipers are particularly effective for removing dirt from the rod in contaminated environments.
Are all DP cylinders tested before delivery? Yes, all Conforti DP cylinders undergo a functional test at 375 bar per ISO 10100.
RP / MP / RQ
In which applications are compact cylinders used? In many sectors of industrial automation — moulds and injection moulding machines, clamping systems, special equipment with limited space requiring high pushing and pulling forces, small handling lines.
What materials are compact cylinders made of? From a high-strength special aluminium alloy with a wear-resistant surface treatment (RP, MP) or from steel (RQ). Light but durable — suitable for demanding operating conditions.
Are custom strokes available? Compact cylinders are available from stock with fixed strokes of 20, 50, 80 and 100 mm. Custom strokes can be supplied on request thanks to fast production of special parts.
Can 3D CAD models be downloaded? Yes, our configurator guides you step by step through choosing the most suitable cylinder with validation. You can download 2D and 3D models with full technical documentation for immediate integration into design projects.
When to choose RQ instead of RP? When you need pressure up to 250 bar, shock loading or cyclic stress. RQ is the steel version resistant to pressure peaks. RP/MP (aluminium) is suitable for lighter loads up to 160 bar.
What are the pressure parameters? RP/MP: 160 bar for Ø25–63 mm, 100 bar for Ø80–100 mm (the aluminium alloy limit). RQ: 250 bar across the whole range (steel version).
Which seal types are used? High sealing, low friction, high temperatures, HFC compatible — for various application requirements and maximum service life.
Which accessories and configuration options? Oil ports can be threaded or ORFS, available in several positions (front, side, rear). An additional pair of ports on request. The standard rod end has an internal thread, compatible with a male threaded rod end or a floating joint.
Servo cylinders TD / TK / TH / TX / TP
In which applications are TD servo cylinders used? In applications requiring precise positioning — CNC machines, robotics, hydraulic presses with position control, automation lines with a continuous feedback signal, positioning systems.
How is the piston position detected in a servo cylinder? Conforti servo cylinders are fitted with a high-precision linear position transducer based on magnetostrictive technology. The transducer operates contactlessly via a magnetic field — no mechanical wear, long service life. It provides an analogue output (current or voltage) or a digital signal in the SSI, CANbus, DeviceNET, Profibus, EtherCAT®, EtherNet/IP™, PROFINET or POWERLINK protocols.
What are the advantages of a servo cylinder with a transducer? The transducer continuously provides an absolute position signal without homing after power-up and achieves extremely high resolution. A removable steel cover protects the sensitive external parts of the transducer from impacts during transport, installation and operation. Integrated CETOP plates allow direct mounting of ISO 4401 valves and servo valves on the cylinder — reducing the oil volume between the valve and the actuator and facilitating closed-loop position control.
What outputs does the transducer provide? Analogue voltage 0-10V, current 4-20mA, or digital in the SSI, CANbus, DeviceNET, Profibus, EtherCAT, EtherNet/IP, PROFINET, POWERLINK protocols.
How do I choose the most suitable servo cylinder? Our configurator helps with selection and technical validation. You can choose from ISO 6020/2 tie-rod servo cylinders (TD/TK), counterflange servo cylinders (TH/TX) and ISO 6022 servo cylinders (TP). The configurator performs sizing and selection from multiple options of functions, materials and accessories.
What is the operating pressure of TD cylinders? A nominal 160 bar (same as CD/DK), tested per ISO 10100. For higher pressures of 210 bar choose TH, for 250 bar TP.
Glossary — hydraulic cylinders
Brief terminology for selecting and configuring a hydraulic cylinder. The terms match the labelling in the configurator and in the Conforti catalogue.
2×
Double-acting cylinder
Pressure acts on both sides of the piston — the cylinder extends and retracts under force. All Conforti hydraulic cylinders are double-acting.
ISO
ISO 6020/2 (DIN 24554)
A standard for medium-duty cylinders up to 160 bar (counterflange 210 bar) with standardised dimensions and mounting. → CD/DK/MD
ISO
ISO 6022
A standard for heavy-duty cylinders up to 250 bar with thicker rods for high loads and buckling. → DP/TP
✓
ISO 10100
A standard for testing hydraulic cylinders. Every Conforti cylinder is individually pressure-tested (160 bar → test 240 bar).
CD
Tie-rod cylinder
A body held together by tie-rods — modular, easy to maintain and repair. CD/DK/MD series. → Standard motion
HD
Counterflange cylinder
Flange mounting for long strokes and higher stiffness. HD/HK series. → Long strokes
RP
Compact cylinder
A short envelope for confined spaces. Aluminium (RP/MP, 160 bar) and steel (RQ, 250 bar). → Compact
TD
Servo cylinder
A cylinder with a magnetostrictive position sensor for precise positioning and closed-loop control. → Servo cylinders
MD
Piston-position sensing
Magnetic sensors (SR/SH) report reaching the end or intermediate positions to the PLC. MD/MP series. → Position sensing
NK
Nickel-plating
A chemically nickel-plated surface 20 µm + a chromed rod = corrosion resistance of 1,200 h in salt spray. → Aggressive environments
Ø
Bore / rod
The piston diameter (bore) determines the extend force; the annulus (bore − rod) the retract force. Marked Ø bore/rod, e.g. 80/56 mm.
↔
Stroke
The rod travel between the end positions in mm. On long strokes, watch the buckling stability of the rod.
⊏
Cushioning
Hydraulic slowing of the piston at the end of stroke — prevents shocks and noise. One-sided or both-sided, adjustable.
S·L
Seals S / L / H / G
S = zero leakage, L = low friction, H = Viton® (temperatures/esters), G = for HFC fluids. Selection by medium and speed.
MP
Mounting
The way the cylinder is fixed per ISO (trunnion, flange, foot, eye). The same ISO mounting = identical dimensions = interchangeability.
▣
CETOP / ISO 4401
An interface for mounting valves and servo valves directly on the cylinder. Shortens the oil path and speeds up the response (servo).
F
Cylinder force
F = pressure × area. On extension the piston area (bore) acts, on retraction the smaller annulus area (bore − rod) — so retraction has a lower force.
P
Pressure (P)
Operating pressure in bar or MPa (1 MPa = 10 bar). Nominally 160 bar (ISO 6020/2), 210 bar (HD/HK) or 250 bar (ISO 6022).
Q
Flow (Q) and speed
Piston speed v = Q / area. Higher flow = higher speed; the configurator computes the pump flow needed for the chosen speed.
RR
Rod material
RRA aluminium bronze (light), RRB chrome-nickel (universal), RRH heavy-duty, RRX extra heavy-duty for extreme environments.
⤧
Rod buckling
The risk of loss of stability on long strokes under compressive load. Solved by a thicker rod (ISO 6022) or a shorter free length.
SJ
Spacer
An extension spacer for strokes over 1000 mm: SJ 50, SJ 100, SJ 150, SJ 200. → Long strokes
RM
Metal wiper (RM)
A metal rod wiper for abrasive and dusty environments. Available for CD/DK/MD/HD/HK/DP, not for the compact and servo series.
SP
Inductive sensor (SP)
A proximity position sensor SPV / SPZ / SPK by cushioning position. An alternative to the magnetic sensors SR/SH on the MD/MP series.
↻
Closed-loop control
Feedback position control on servo cylinders — the sensor continuously reports the position to the control system, which corrects the motion in real time.
⌥
Oil ports
The hydraulic oil connection — threaded or with an O-ring, in several positions (front, rear, side). Size by cylinder bore.
SX
SX prefix
In the configuration code it is written right after the series if the cylinder contains any non-standard option (e.g. RM, AS).
⌗
Configuration code (SKU)
The catalogue code of the cylinder: series, bore/rod, mounting, stroke, seal, cushioning and options — e.g. CD 80/56 A 500 S. Assembled by the configurator.
↔
Interchangeability (ISO)
The same ISO mounting and connection = identical mounting dimensions. A cylinder can be replaced by another to the same standard without modifying the machine.
DIN
DIN 24554
The German national designation corresponding to ISO 6020/2 — used as a synonym for medium-duty tie-rod and counterflange cylinders.
Frequently asked questions — FAQ
Frequently asked questions
Answers verified against the Conforti catalogue.
What does it mean that the cylinders comply with ISO 6020/2?
ISO 6020/2 defines the dimensions, mounting and design rules for tie-rod cylinders with a nominal pressure of 160 bar. It ensures mutual interchangeability and conformity with international standards.
When to choose ISO 6022 (DP/TP) instead of ISO 6020/2?
Choose DP/TP (ISO 6022) for 250 bar pressure (test 375 bar), stroke up to 6,000 mm, radial loading and demanding environments. It gives a higher force from the same bore and the bronze guides have greater wear resistance.
How do DP cylinders behave under radial loading?
The DP series has a double bronze piston guide and a long rod guide bushing. This combination handles radial loads from misalignment or side stress that would damage an ordinary cylinder.
Why choose HD/HK with counterflanges instead of tie-rod CD/DK?
Counterflanges give higher stability on long strokes because the tie-rod stretch under load is eliminated. They also allow a higher pressure (210 vs 160 bar) while keeping the same external dimensions per ISO 6020/2 — often it is enough just to change the series without modifying the machine.
What is adjustable end-of-stroke cushioning for?
Cushioning prevents mechanical shocks at the end of stroke, is adjustable to the decelerated load and has a quick restart. The adjusting unit can also serve as an air bleed (by loosening the nut).
What is the difference between cushioning and air bleed in the code?
They are two separate SKU fields. Cushioning = V / Z / K (front/rear/both ends). Air bleed = SV / SZ / SK. They can be combined independently.
What is the SJ spacer and when is it used?
The spacer (SJ50/100/150/200) ensures stability on long strokes and is added automatically by length. On CD/DK: 1000–1500 mm → SJ50, 1500–2000 → SJ100, 2000–3000 → SJ150, over 3000 → SJ200.
Can the cylinders be fitted with position sensors?
Yes. MD has SH (PNP 6–30 V DC) or SR (REED 3–110 V AC/DC). MP uses SP (REED 3–30 V AC/DC, NOT 24 V DC). For continuous position measurement across the whole stroke, choose a servo cylinder with a transducer.
How do servo cylinders with a transducer work?
The TD/TK/TH/TX/TP servo cylinders have a magnetostrictive sensor that permanently measures the absolute rod position without homing at start-up. CETOP plates allow a valve to be mounted directly on the cylinder.
Can the cylinder be used in a corrosive or abrasive environment?
Yes. For corrosion (food, pharmaceutical, washing) choose nickel-plating NK (1,200 h salt spray) and a stainless rod. For abrasive dust, metal wipers and special rod materials (hardened steel, Nikrom) are available.
Which seals are available?
S — high sealing, up to 0.5 m/s, −20/+80 °C, oil (NOT for RQ or servo)
L — low friction, up to 1 m/s, −20/+80 °C
H — Viton®, up to 1 m/s, −20/+150 °C, oil and phosphate esters
G — HFC fluids (water emulsions), up to 1 m/s
Metal wipers are also available to remove dirt from the rod in dusty environments.
Why do Conforti cylinders have a bronze guide bushing?
The bronze guide bushing reduces friction during rod motion, handles radial loading better and protects the surface from scratching, thereby keeping sealing and preventing oil leakage.
Why a modular cylinder instead of a welded one?
A modular design disassembles without special tools — you solve a repair by replacing a seal or part from a KIT set in stock. A welded cylinder usually cannot be repaired once damaged.
What accessories do you offer for the cylinder and when to use them?
We supply mounting counterparts and rod ends as KIT parts: a spherical eye CS and a clevis TS on the rod end (articulated/pinned connection), trunnion brackets LK (mounting G/H/L), an eye bracket LD (mounting D) and a heavy-duty bracket FD (DP/TP clevis mountings). Each is tied to a mounting type — in the summary the configurator offers the matching size by bore.
Is every cylinder tested before delivery?
Yes, per ISO 10100 (ISO 6020/2 at 240 bar, ISO 6022 at 375 bar). In urgent cases an atypical cylinder can be delivered within 48 hours.
How do I choose a hydraulic cylinder?
A cylinder is chosen from five inputs: required force (determines the piston bore), operating pressure (defines the series — 160, 210 or 250 bar), stroke, speed (determines the seal) and the environment including the mounting. These parameters yield a specific Conforti SKU, for example CD 50/28 A 500 S.
What can replace a Parker or Bosch cylinder?
If the original cylinder is to ISO 6020/2 or ISO 6022, a Conforti cylinder of the same standard and the same dimensions is dimensionally interchangeable (drop-in). The replacement is found parametrically — by reading off the bore, rod, pressure, standard, mounting and connection from the original cylinder, not by the Parker or Bosch Rexroth type number.
What does the code CD 50/28 A 500 S mean?
CD is a tie-rod double-acting cylinder to ISO 6020/2, 50/28 is a piston diameter of 50 mm and a rod of 28 mm, A is the front flange mounting (ISO ME5), 500 is the stroke in mm and S is the standard high-sealing set (NBR + PTFE) up to a speed of 0.5 m/s and a temperature of −20 / +80 °C.
Which Conforti cylinder corresponds to ISO 6020/2 and 160 bar?
The CD, DK and MD series are tie-rod cylinders to ISO 6020/2 with an operating pressure of 160 bar. CD covers bores Ø 25–100 mm, DK Ø 125–200 mm and MD Ø 25–125 mm (with a magnetic position sensor). For 210 bar there are the counterflange HD/HK, for 250 bar the heavy-duty DP/TP to ISO 6022.
How is the Conforti SKU read position by position?
The order is: series / bore-rod / mounting / (cushioning) / stroke / (spacer) / seal / (air bleed) / (rod end) / (sensors) / options. Special options are written in the order PQ → RM → NK. The mandatory positions are series, dimensions, mounting, stroke and seal.
What does the 0.1 m/s limit on RP/MP/RQ compact cylinders mean?
For piston speeds above 0.1 m/s it is advisable to limit the stroke on the compact series with an external mechanical stop, so that the piston does not hit the guide bushing. It is not an exclusion rule but a safety recommendation — the configurator flags it.
What is the guide bushing drain (SD) and when do I need it?
SD is a drain port in the cylinder head that carries off excess oil from the space between the wiper and the primary seal. The configurator recommends it for the combination of a long stroke (over 2000 mm) and high speed. It is not available for the compact RP/MP/RQ series (a different guide design).
When to choose the compact RQ instead of RP?
RP is made of an aluminium alloy (light, cheaper), RQ of steel. Choose RQ where pressure shocks, impacts or cyclic stress occur that shorten the life of the aluminium RP. RQ also withstands the full 250 bar (RP/MP only 160 bar for Ø < 80 mm, or 100 bar for Ø ≥ 80 mm).
What effect does the mounting have on buckling strength?
The mounting determines the stroke factor FC for calculating rod buckling. FC = 0.7 (front flange with a freely guided end) is the best for long strokes; FC = 4 (rear threads as a cantilever) is the least favourable. LI = stroke × FC applies, where LI is the equivalent buckling length for the Euler calculation. The configurator verifies this automatically.
How is the force of a hydraulic cylinder calculated?
Extend force: F [kN] = P [bar] × A [cm²] ÷ 100, where the piston area A = π × Ø² ÷ 4. Example for Ø 80 mm at 160 bar: A = 50.27 cm², theoretical F ≈ 80 kN. The retract force is lower (calculated from the annulus area). The operating force is about 7% lower due to seal friction (η ≈ 0.93) — the configurator shows operating values with efficiency included.
What is the maximum stroke of Conforti cylinders?
The ISO 6020/2 series (CD, DK, MD, HD, HK, TD, TK, TH, TX) and the TP servo cylinder have a maximum of 4000 mm; heavy-duty DP (ISO 6022) up to 6000 mm; compact RP/MP/RQ standard 20/50/80/100 mm (others on request). On long strokes the configurator recommends an SJ spacer, and over 2000 mm at high speed also the SD drain.
5 steps · configuration procedure
How to configure a cylinder correctly?
The recommended order of choices so the configuration makes sense.
1
Choose the series by standard and operation
ISO 6020/2 (CD/DK 160 bar; HD/HK 210 bar — higher pressure and stiffness at the same dimensions) or ISO 6022 (DP 250 bar, radial load). Short stroke → compact RP/MP/RQ. Precise positioning → servo cylinder.
2
Enter the force, pressure and stroke
The piston bore follows from the required force and pressure; the buckling stability is verified from the stroke and mounting. On long strokes the configurator adds the spacer (SJ) itself.
3
Select the mounting
Flanges, feet, spherical eyes or trunnions by installation — CD/DK/MD has 14 variants. The same letter means something different on different series — the configurator shows the correct table.
4
Cushioning, air bleed and sensors
Cushioning (V/Z/K) at higher speed and load, air bleed (SV/SZ/SK) almost always. Sensors as required for signalling — MD (SH/SR), MP (SP) or inductive in the heads.
5
Seal and special version
The seal by medium and speed (S/L/H/G). For corrosive and abrasive environments NK, RRX, RM or SD. The configurator automatically rules out incompatible choices.
Abychom poskytli co nejlepší služby, používáme k ukládání a/nebo přístupu k informacím o zařízení, technologie jako jsou soubory cookies. Souhlas s těmito technologiemi nám umožní zpracovávat údaje, jako je chování při procházení nebo jedinečná ID na tomto webu. Nesouhlas nebo odvolání souhlasu může nepříznivě ovlivnit určité vlastnosti a funkce.
Funkční
Always active
Technické uložení nebo přístup je nezbytně nutný pro legitimní účel umožnění použití konkrétní služby, kterou si odběratel nebo uživatel výslovně vyžádal, nebo pouze za účelem provedení přenosu sdělení prostřednictvím sítě elektronických komunikací.
Předvolby
Technické uložení nebo přístup je nezbytný pro legitimní účel ukládání preferencí, které nejsou požadovány odběratelem nebo uživatelem.
Statistiky
Technické uložení nebo přístup, který se používá výhradně pro statistické účely.Technické uložení nebo přístup, který se používá výhradně pro anonymní statistické účely. Bez předvolání, dobrovolného plnění ze strany vašeho Poskytovatele internetových služeb nebo dalších záznamů od třetí strany nelze informace, uložené nebo získané pouze pro tento účel, obvykle použít k vaší identifikaci.
Marketing
Technické uložení nebo přístup je nutný k vytvoření uživatelských profilů za účelem zasílání reklamy nebo sledování uživatele na webových stránkách nebo několika webových stránkách pro podobné marketingové účely.
CS · ISO 6982 / 8132
TS · ISO 8133 / DIN 24555
CF · clevis
LD · ISO 8133 / DIN 24556
