This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X25B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X25B 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 ATP50X25B
The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP50X25B is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 25mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE50X25B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ50 mm
- Stroke25 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.5
- StatusDiscontinued → ATE50X25B
- 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 ATP50X25B
A single acting pull cylinder with spring return, the ATP50X25B uses a spring to extend the rod and compressed air to retract it, so the rod sits extended whenever air is lost. With a 50 mm bore it delivers 775 N of pull at 0.5 MPa and 1127.5 N at 0.7 MPa, both figures already net of the return spring, and it needs at least 0.2 MPa (28-145 psi working band) to overcome the spring. The B code gives a male rod thread on the 16 mm rod, and the port is 1/8".
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarding where a full-length body will not fit. In practice, plan on about 465 N of real work at 0.5 MPa, and for vertical duty that equates to roughly 79 kgf, so with a 2:1 margin it lifts about 40 kg vertically. A fixed TPU bumper at both ends decelerates the rod, and this model is discontinued - the current-production drop-in is the ATE50X25, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ATP Single Acting Port Compact Cylinder ATP50X25B Technical Specifications
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X25B |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X25B |
| Bore size | Ø50 mm |
| Stroke | 25 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 ATE50X25B (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 ATP50X25B
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 ATP50X25B Is Used
Spring-extended clamping on CNC fixtures
The spring holds the clamp engaged and air at 0.5 MPa retracts it with 775 N of pull, so a power loss leaves the aluminium workpiece safely clamped between cycles.
Lid lift on a packaging hopper
With about 40 kg of vertical lift capacity at a 2:1 margin, the spring-extended rod raises a stainless hopper lid automatically whenever the air supply drops.
Retract stroke on an electronics test gantry
The 25 mm stroke and short body fit inside the gantry frame, pulling a probe carriage back at 50-500 mm/s while the fixed TPU bumpers stop it cleanly at each end.
Replacing the Airtac ATP Single Acting Port Compact Cylinder ATP50X25B with the ATE50X25B
Size against the 0.5 MPa pull figures: the 40 mm bore gives 500.3 N and the 63 mm bore gives 1320 N, so the 50 mm bore at 775 N sits between them for clamping or retracting jobs in the 40-70 kg vertical range. Remember the spring returns the rod to its extended home position on air loss and will not hold a mid-stroke position. This unit has no magnet because the -S code was not ordered, so no CMSE or DMSE switch can be fitted; order the -S version if position sensing is needed. FA/FB flange, LB foot and CA/CB clevis mountings bolt to the standard face. For new builds, specify the ATE50X25 instead, as this model is discontinued.
Replacement checklist
- ✓ Current-production ACE → ATE50X25B
- ✓ 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 ATP50X25B FAQ
Pull is 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa, both net of the return spring, since the spring extends the rod and air retracts it. Bore is 50 mm, stroke 25 mm, rod 16 mm with a male thread (B code), port 1/8", operating pressure 0.2-1.0 MPa (28-145 psi), proof 1.5 MPa (215 psi), speed 50-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, with a fixed TPU bumper at both ends.
Order the ATE50X25, the current-production ISO 21287 successor: swap the P for an E and you get the same 50 mm bore, 25 mm stroke and force class in a short compact body. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, and add the -S code on the ATE if you need the optional magnet for CMSE or DMSE switches.
Request a Quote for the ATE50X25B
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X25B replacement — usually within 7-8 hours.