This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X5S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X5S 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 ATP50X5S is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø50mm bore and 5mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE50X5S (ISO 21287 ACE), in the same bore, stroke and force class.
The ATP50X5S is a single acting pull cylinder of DIN-standard compact build: a spring extends the 16 mm rod and compressed air retracts it, so the unit sits normally extended and fails to the extended position when air is lost. At 0.5 MPa it pulls 775 N net of the return spring, rising to 1127.5 N at 0.7 MPa, with the spring already deducted from both figures. The 5 mm stroke suits short retraction moves such as releasing a clamp or clearing a part from a nest. Working range is 0.2-1.0 MPa (28-145 psi) and speed is 50-500 mm/s.
The hard-anodized aluminium body is an ISO 21287 class short frame, saving roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarded stations. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be fitted for end-of-stroke signalling. The rod end is female M10x1.5 and the air port is 1/8" PT. Note that the ATP family is discontinued: the current-production drop-in is the ATE50X5, and buyers should confirm ISO 21287 mounting dimensions before swapping. As a planning figure, 775 N at 0.5 MPa corresponds to about 79 kgf, so with a 2:1 margin it lifts roughly 39 kg vertically.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X5S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X5S |
| Bore size | Ø50 mm |
| Stroke | 5 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 ATE50X5S (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. |
| ×5 | 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).
Spring-extended clamp on a machined aluminium housing: air pulls the 16 mm rod back 5 mm to release the part, and a power cut leaves the fixture safely clamped at 775 N.
On a packaging machine door, the spring holds the latch engaged and a 0.2 MPa air signal retracts it 5 mm; the fitted -S magnet feeds rod position to a DMSE switch for PLC monitoring.
In an electronics assembly cell the rod lifts a connector tray about 39 kg equivalent vertically at 0.5 MPa before air pulls it back down for the next cycle.
Size the bore against the net pull: 775 N at 0.5 MPa on this 50 mm bore covers medium clamping and retraction duties; step down to the 40 mm bore (500.3 N at 0.5 MPa) for lighter nests or up to the 63 mm bore (1320 N at 0.5 MPa) when the tooling is heavier. Because the spring returns the rod to its extended home on air loss, the cylinder will not hold a mid-stroke position - use a positive mechanical stop if the load must stay put. Mount with FA/FB flange, LB foot or CA/CB clevis brackets, and keep the -S magnet in the code if CMSE / DMSE switch feedback is needed. For new projects order the ATE50X5, the current replacement in the same bore, stroke and force class.
Replacement checklist
Bore 50 mm, stroke 5 mm, rod 16 mm with female M10x1.5 thread, 1/8" PT port. Net pull (spring already deducted) is 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa. 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.
AirTAC no longer produces the ATP family. The current drop-in is the ATE50X5 (swap the P for an E), which matches the same 50 mm bore, 5 mm stroke and 775 N pull class in the ISO 21287 short-body format. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ATP follows the older DIN-standard footprint.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X5S replacement — usually within 7-8 hours.