This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE32X20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE32X20S 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 ATP32X20S is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø32mm bore and 20mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE32X20S (ISO 21287 ACE), in the same bore, stroke and force class.
This ATP32X20S is a single acting pull cylinder with spring return (discontinued): the built-in spring extends the rod to its home position and compressed air retracts it, so it fails to the extended state whenever air is lost. The 32 mm bore delivers 296 N of pull at 0.5 MPa and 434.2 N at 0.7 MPa, both figures already net of the spring, and at least 0.2 MPa is needed to overcome the spring. The S in the code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped onto the hard-anodized aluminium body for end-of-stroke signalling.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs, guards and gantries. For sizing, plan on roughly 178 N of real work at 0.5 MPa and expect it to lift about 15 kg vertically with a 2:1 margin. Fixed TPU bumpers at both ends decelerate the rod, the S45C hard-chrome rod carries a female M8x1.25 thread, and the port is 1/8". This model is discontinued; the current-production drop-in is ATE32X20, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP32X20S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE32X20S |
| Bore size | Ø32 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 ATE32X20S (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 | 296.0 N |
| 0.7 MPa | 434.2 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). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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).
Air retracts the rod to pull empty cartons down onto a forming station, and on air loss the spring lifts the rod clear so jammed cartons are ejected safely instead of being crushed.
The fitted -S magnet drives a DMSE switch to confirm the rod is fully extended before a robot picks the part, and the 20 mm stroke keeps the retract travel short inside the fixture.
The spring holds the workpiece clear at rest and 296 N of air pull retracts a locating pin for loading; the short body fits where a full-length ISO 15552 profile cylinder cannot.
Size both ways: if 296 N of pull at 0.5 MPa is more than your load needs, the 25 mm bore gives 170.9 N; if you need more, the 40 mm bore reaches 500.3 N. Remember the spring returns the rod on air loss and will not hold a mid-stroke position. This unit ships with the -S magnet fitted for CMSE / DMSE switches and a female M8x1.25 rod thread; FA/FB flange, LB foot and CA/CB clevis mounts bolt to the same face. Since ATP is discontinued, order ATE32X20 as the current replacement and verify the ISO 21287 mounting dimensions first.
Replacement checklist
It is a single acting pull, spring-return cylinder: pull is 296 N at 0.5 MPa and 434.2 N at 0.7 MPa, both net of the return spring. Bore 32 mm, stroke 20 mm, rod 12 mm with a female M8x1.25 thread, 1/8" port, 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. The -S magnet is fitted, so CMSE / DMSE switches can be mounted. The model is discontinued; ATE32X20 is the current replacement.
The ISO 21287-class compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it drops into cramped jigs and guards. A fixed TPU bumper at each end decelerates the rod at the ends of travel; it is not adjustable and it never locks or holds a load, since the spring simply returns the rod to its extended home position on air loss.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE32X20S replacement — usually within 7-8 hours.