This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE20X15S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE20X15S 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 ATP20X15S 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 ATE20X15S (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting pull cylinder with spring return, the ATP20X15S keeps its rod extended at rest and uses compressed air to retract it, delivering a net pull of 88.1 N at 0.5 MPa (135.2 N at 0.7 MPa) once the spring is overcome - 0.2 MPa is the minimum working pressure. This 20 mm bore, 15 mm stroke model is discontinued; the current-production drop-in is the ATE20X15 (swap the P for an E), so confirm the ISO 21287 mounting dimensions before swapping, since the ATP was built to a DIN-standard compact format.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarded stations. This S-coded unit carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches can be mounted for end-of-stroke detection. For sizing, treat about 53 N (0.6 of the 88.1 N rating) as the usable pull at 0.5 MPa, which lifts roughly 4 kg vertically with a 2:1 margin. A fixed TPU bumper sits at both ends, the hard-anodized aluminium body pairs with an S45C hard-chrome rod, and speed runs 50-500 mm/s.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP20X15S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE20X15S |
| 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 ATE20X15S (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 a small press bench, the spring pushes finished bushings out of a locating nest each cycle; air retracts the platen. The 15 mm stroke matches shallow pockets and the 88.1 N net pull clears light parts.
A guarded packaging station uses the fitted -S magnet with a DMSE switch to confirm the gate sits in its normally extended home, so the PLC blocks cycle start whenever air is lost.
In a drill jig, the spring keeps a swing latch extended to admit the workpiece; air pulls it clear for clamping. The compact body fits where a full-length profile cylinder cannot.
At 88.1 N pull (0.5 MPa) this 20 mm bore sits between the 16 bore at 53.3 N and the 25 bore at 170.9 N - step down for lighter spring-return clamps, up if your tooling needs more net force. Remember the spring returns the rod to its extended home on air loss and will not hold a mid-stroke position. The female M6x1.0 rod thread takes standard I/Y knuckles, FA/FB flange, LB foot or CA/CB clevis mounts bolt to the face, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ATE20X15 as the current replacement.
Replacement checklist
Net of the return spring, pull is 88.1 N at 0.5 MPa and 135.2 N at 0.7 MPa; 0.2 MPa minimum is needed to move the rod against the spring. Plan on about 53 N of real work at 0.5 MPa, which lifts roughly 4 kg vertically with a 2:1 margin. Operating 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, temperature -20 to +70 C.
Order the ATE20X15, the current ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 15 mm stroke and force class with a matching short body and mounting family. Because the ATP was DIN-standard, 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 ATE20X15S replacement — usually within 7-8 hours.