This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X5 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X5 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 ATP50X5 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 ATE50X5 (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting pull cylinder with spring return, the ATP50X5 uses an internal spring to hold the rod extended and compressed air to retract it over a short 5 mm stroke. At 0.5 MPa it delivers a net pull of 775 N (1127.5 N at 0.7 MPa), already discounted for the spring, so the figures you read are the figures you get at the rod. The 50 mm bore takes a 1/8" port and an M10x1.5 female rod thread, and the spring wins from just 0.2 MPa (28-145 psi working band).
The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into clamped fixtures and ejection stations where a full-length body cannot. A fixed TPU bumper sits at both ends to soften end-of-travel contact. Plan on about 465 N of usable work at 0.5 MPa, which is roughly a 47 kg vertical pull with margin - enough to retract a gate or strip a small die. Note: this model is discontinued; the current-production successor is the ATE50X5, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X5 |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X5 |
| 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 ATE50X5 (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).
The 775 N spring-extended pin stays latched through a die change and air retracts it 5 mm when the operator docks the cart at 0.5 MPa.
On a CNC fixture the spring holds the interlock gate closed; a 0.2 MPa signal pulls it open, and air loss always fails safe to extended.
A packaging line uses the 5 mm stroke to lift a hold-down pad off filled cartons; the 465 N usable pull at 0.5 MPa clears the pad reliably each cycle.
For a 5 mm retract stroke in the 775 N class at 0.5 MPa, this 50 mm bore is the right size; step down to the 40 mm bore (500 N) for lighter clamps or up to the 63 mm bore (1320 N) for heavier stripping. If the job needs a push stroke instead, look at the ASP single-acting push family or the double-acting ACP, both also superseded by ATE / ACE. The rod ends in an M10x1.5 female thread and mounting is via FA/FB flange, LB foot or CA/CB clevis. This code carries no magnet - order the -S variant if you need CMSE or DMSE switch positions. Replacement: ATE50X5.
Replacement checklist
Net of the return spring, the 50 mm bore pulls 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa. The spring extends the rod and air retracts it, so at least 0.2 MPa is needed before the rod moves. Working range is 0.2-1.0 MPa (28-145 psi), proof 1.5 MPa (215 psi), speed 50-500 mm/s, air filtered to 40 um, -20 to +70 C. On air loss the spring returns the rod to its extended home position; it does not hold a mid-stroke position.
The hard-anodized aluminium body with S45C hard-chrome rod is an ISO 21287-class short build that saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange, LB foot and CA/CB clevis options. The ATP50X5 is discontinued; the current-production drop-in is the ATE50X5 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before you swap. Outline dimensions: confirm from datasheet.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X5 replacement — usually within 7-8 hours.