This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE20X15SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE20X15SB 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 ATP20X15SB is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE20X15SB (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting pull cylinder with spring return, the ATP20X15SB keeps its rod extended at rest and retracts only when air is applied. At 0.5 MPa it delivers 88.1 N of pull net of the return spring (135.2 N at 0.7 MPa), and it needs at least 0.2 MPa to overcome the spring. The 20 mm bore takes an M5x08 port, the rod is 10 mm with a male thread end, and the 15 mm stroke sits inside the standard range for this bore. This model is discontinued; the current-production replacement is the ATE20X15, which matches the same bore, stroke and force class.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guard panels where a full-length body cannot. Because the S code is in this model, the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted for end-of-stroke detection. For sizing, plan on roughly 53 N of usable pull at 0.5 MPa, which lifts about 4 kg vertically with a 2:1 margin. A fixed TPU bumper at each end decelerates the rod; on air loss the spring returns it to the extended home position and no mid-stroke position is held.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP20X15SB |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE20X15SB |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 ATE20X15SB (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 | 88.1 N |
| 0.7 MPa | 135.2 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). |
|---|---|
| 20 | 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).
On an electronics assembly fixture, the spring holds a 15 mm clamp shoe closed on aluminium brackets; 88.1 N of pull at 0.5 MPa retracts it when the operator loads the next part.
A compact inspection gate uses the fitted -S magnet with a DMSE switch to confirm the slide has spring-returned to its extended home before the vision cycle starts.
In a small test rig, air at 0.2-1.0 MPa (28-145 psi) pulls a sample tray back 15 mm against the spring, freeing the station for manual part exchange at up to 500 mm/s.
Size between bores: the 16 mm bore pulls 53.3 N at 0.5 MPa, while the 25 mm bore reaches 170.9 N, so the 20 mm bore at 88.1 N sits in the middle for light clamping and return tasks. The male rod thread (B code) suits I/Y knuckles, and FA/FB flange, LB foot or CA/CB clevis brackets bolt to the standard face. If you need position sensing, this unit already carries the -S magnet for CMSE / DMSE switches. For new projects, order the ATE20X15 instead and confirm the ISO 21287 mounting dimensions before swapping, since the ATP is DIN-standard.
Replacement checklist
It is a single acting pull cylinder: the spring extends the rod and air retracts it. Pull force net of the return spring is 88.1 N at 0.5 MPa and 135.2 N at 0.7 MPa. Minimum working pressure is 0.2 MPa (28 psi), the operating range is 0.2-1.0 MPa (28-145 psi) with 1.5 MPa (215 psi) proof pressure, speed is 50-500 mm/s, and air must be filtered to 40 um. The 20 mm bore uses an M5x0.8 port and the rod end is a male thread.
No - the ATP family is discontinued. The current drop-in is the ATE20X15, an ISO 21287 compact cylinder in the same bore, stroke and force class. Because the ATP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and CA/CB clevis brackets are available for the ATE.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE20X15SB replacement — usually within 7-8 hours.