This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X15 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X15 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.

The AirTAC Airtac ATP Single Acting Port Compact Cylinder ATP50X15 is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 15mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE50X15 (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting pull cylinder with spring return, the ATP50X15 uses a spring to hold the rod extended and compressed air at 0.2 MPa or higher to retract it over a 15 mm stroke. At 0.5 MPa the net pull is 775 N (1127.5 N at 0.7 MPa), already measured against the spring. Plan on roughly 465 N of usable force at 0.5 MPa, which lifts about 23 kg vertically with a 2:1 margin. The 50 mm bore takes a 16 mm rod with an M10x1.5 female thread and a 1/8" port.
The hard-anodized aluminium body is an ISO 21287 compact build, saving about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into shallow fixtures and guarded assemblies. Fixed TPU bumpers sit at both ends. Note this model is discontinued: the current-production drop-in is the ATE50X15, so confirm ISO 21287 mounting dimensions before swapping. For position sensing, order the -S code to add the optional magnet for CMSE / DMSE switches; without -S no magnet is fitted.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X15 |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X15 |
| Bore size | Ø50 mm |
| Stroke | 15 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 ATE50X15 (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.
| 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.
| ATP | DIN compact cylinder (single-acting pull, spring-return, discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×15 | 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).
The spring keeps a small die clamp retracted-open at rest; 775 N of pull at 0.5 MPa snaps it back over 15 mm when air is applied, releasing machined aluminium blanks.
On a packaging line, air pressure pulls a 15 mm gate pin clear of the carton path; on air loss the spring returns the pin to its extended, blocking position automatically.
Order the -S magnet and a CMSE switch to confirm the rod has retracted on a welding fixture, giving a wired signal that the part clamp has released before robot motion.
Size against neighbours: the 40 mm bore pulls 500.3 N at 0.5 MPa, while the 63 mm bore reaches 1320 N, so the 50 mm sits mid-range for clamping and retracting tasks needing 775 N. Keep strokes short and speeds between 50-500 mm/s. If you need FA/FB flange, LB foot or CA/CB clevis mounting, or the optional -S magnet for CMSE / DMSE sensors, add it to the code. Since ATP is discontinued, order the ATE50X15 as the current equivalent and verify the ISO 21287 footprint first.
Replacement checklist
At 0.5 MPa the net pull is 775 N; at 0.7 MPa it is 1127.5 N. Both figures are already net of the return spring, which extends the rod while air retracts it. Minimum working pressure is 0.2 MPa (28-145 psi overall range, 1.5 MPa / 215 psi proof), speed is 50-500 mm/s, and the 50 mm bore uses a 1/8" port with an M10x1.5 female rod thread.
Order the ATE50X15: swap the P for an E and you get the current-production ISO 21287 compact cylinder in the same bore, stroke and force class. The short aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder and accepts the same FA/FB, LB and CA/CB mounting family, but confirm the ISO 21287 mounting dimensions against your fixture before the swap.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X15 replacement — usually within 7-8 hours.