This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE50X5SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE50X5SB 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 ATP50X5SB 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 ATE50X5SB (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting pull cylinder with spring return, the ATP50X5SB keeps its rod extended by spring and retracts it with air pressure. At the 50 mm bore this yields 775 N of pull at 0.5 MPa (1127.5 N at 0.7 MPa), already net of the spring, and the 5 mm stroke suits tiny clamp or release moves. The hard-anodized aluminium body is a compact ISO 21287 style build that saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. Note that this model is discontinued; the current-production successor is ATE50X5.
Because the spring holds the rod out at rest, the cylinder fails to the extended position on air loss and will not hold a mid-stroke point. For sizing, treat roughly 465 N (about 0.6 of the 775 N rating) as the practical working pull at 0.5 MPa, which is enough to lift about 39 kg vertically with a 2:1 margin. The B code gives a male rod thread, the port is 1/8", and the S code means the magnet is fitted, so CMSE or DMSE switches can be mounted for end-of-stroke sensing. Fixed TPU bumpers sit at both ends.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP50X5SB |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE50X5SB |
| 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 ATE50X5SB (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 spring keeps the pin extended into a drilled bush; 775 N of air pull retracts it 5 mm clear of the part during loading.
Fails extended to hold cartons in the lane; a 0.2 MPa minimum air signal pulls the gate back for jam clearing.
With the fitted magnet and a DMSE switch, the PLC confirms the 5 mm retraction before the next cycle starts.
Compare force classes before ordering: the 40 mm bore pulls 500.3 N at 0.5 MPa while this 50 mm bore delivers 775 N, and the 63 mm bore reaches 1320 N if you need more. Keep strokes short - single acting pull designs are meant for brief moves, and speed runs 50-500 mm/s. Mount with FA/FB flange, LB foot or CA/CB clevis brackets, and remember the magnet here is the optional -S fitment that this model carries. Since ATP is discontinued, spec the ATE50X5 as the drop-in and confirm ISO 21287 mounting dimensions before the swap.
Replacement checklist
It is a single acting pull cylinder: the spring extends the rod and air retracts it. Pull is 775 N at 0.5 MPa and 1127.5 N at 0.7 MPa, both net of the return spring. Minimum working pressure is 0.2 MPa (28-145 psi operating range, 1.5 MPa / 215 psi proof), with air filtered to 40 um, -20 to +70 C temperature and 50-500 mm/s speed.
The short ISO 21287 style body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow pockets and tight guards. The ATP family is discontinued; order ATE50X5 as the current-production drop-in in the same bore, stroke and force class, and confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE50X5SB replacement — usually within 7-8 hours.