This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X20S in place of this model. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ATP Single Acting Port Compact Cylinder ATP50X20S
The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP50X20S is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE50X20S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke20 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.5
- StatusDiscontinued → ATE50X20S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ATP Single Acting Port Compact Cylinder ATP50X20S
A single acting pull cylinder with spring return, the ATP50X20S uses a spring to extend the 16 mm rod and compressed air to retract it, delivering 775 N of pull at 0.5 MPa (1127.5 N at 0.7 MPa), net of the spring. It needs only 0.2 MPa to overcome the spring, runs on air filtered to 40 um, and moves at 50-500 mm/s. This model is discontinued; the current-production replacement is the ATE50X20, which matches the same bore, stroke and force class.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures where a full-length body will not fit. The hard-anodized aluminium body carries a female M10x1.5 rod thread and a 1/8" PT port, with a fixed TPU bumper at each end. Because this unit carries the -S magnet option, CMSE or DMSE reed and solid-state switches can be mounted directly on the body for end-of-stroke signalling.
Airtac ATP Single Acting Port Compact Cylinder ATP50X20S Technical Specifications
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X20S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X20S |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 25 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ATE50X20S (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 775.0 N |
| 0.7 MPa | 1127.5 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac ATP Single Acting Port Compact Cylinder ATP50X20S
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (adjustable stroke).
Where the Airtac ATP Single Acting Port Compact Cylinder ATP50X20S Is Used
Pick-up head release on assembly cells
The spring keeps the gripper head extended at rest, and 775 N of air pull at 0.5 MPa retracts it about 47 kg of vertical load, so a dropped part on air loss cannot jam the station.
Clamp retraction in welding fixtures
With the -S magnet and a DMSE switch, the PLC confirms the 20 mm retraction of swing clamps on automotive bracket weld lines before the robot enters the cell.
Slide return on compact CNC loading units
The short body, roughly half the length of an ISO 15552 profile cylinder, fits behind the slide of a bar-feeding gantry where the 1/8" port and 50-500 mm/s speed match fast return strokes.
Replacing the Airtac ATP Single Acting Port Compact Cylinder ATP50X20S with the ATE50X20S
At 50 mm bore this cylinder pulls 775 N at 0.5 MPa, sitting between the 40 mm bore (500.3 N) and the 63 mm bore (1320 N) in the same family. Plan on roughly 465 N of usable working pull, which is about 47 kg of vertical load at a 2:1 margin. The 20 mm stroke is well within the standard range for this bore, so no made-to-order stroke is needed. Choose LB feet or FA/FB flanges for fixed jigs, or a CA/CB clevis for pivoting links. Since the ATP50X20S is discontinued, order the ATE50X20 instead and confirm the ISO 21287 mounting dimensions before swapping, because the ATP was built to the DIN standard.
Replacement checklist
- ✓ Current-production ACE → ATE50X20S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ATP Single Acting Port Compact Cylinder ATP50X20S FAQ
It pulls 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa, both net of the return spring, with 0.2 MPa as the minimum working pressure to beat the spring. For reliable cycling, keep the real working load near 465 N, which is about 47 kg of vertical lift at a 2:1 margin. Operating range is 0.2-1.0 MPa (28-145 psi), proof pressure is 1.5 MPa (215 psi), and speed is 50-500 mm/s.
Order the ATE50X20, the ISO 21287 successor: swap the P for an E and you get the same 50 mm bore, 20 mm stroke and force class in a current-production compact body. The short body still saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flanges, LB feet, CA/CB clevis brackets plus CMSE / DMSE switches bolt straight to the ISO 21287 face. Confirm the ISO 21287 mounting dimensions before the swap, since the ATP was DIN-standard.
Request a Quote for the ATE50X20S
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X20S replacement — usually within 7-8 hours.