This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ATE40X15S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ATE40X15S 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 ATP40X15S is a single acting, pull (spring return) DIN-standard tight/compact air cylinder with a Ø40mm bore and 15mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ATE40X15S (ISO 21287 ACE), in the same bore, stroke and force class.
A single acting pull cylinder with spring return, the ATP40X15S keeps its 12 mm rod extended by the spring and uses compressed air to retract it over a 15 mm stroke. With the 40 mm bore it delivers 500.3 N of pull at 0.5 MPa and 729 N at 0.7 MPa, both figures already net of the return spring, and it needs at least 0.2 MPa to overcome the spring. The magnet fitted under the -S code lets you mount CMSE or DMSE reed and solid-state switches for end-of-stroke signalling.
The short ISO 21287 class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures, guards and slide assemblies. In practice, plan on about 300 N of real work at 0.5 MPa, which is roughly 30 kg of usable pull, and treat the fixed TPU bumpers at both ends as end-of-travel pads only. Note this model is discontinued: the current-production replacement is the ATE40X15, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ATP Single Acting Port Compact Cylinder ATP40X15S |
|---|---|
| Series | ATP DIN compact cylinder (discontinued) |
| Replacement | ATE40X15S |
| Bore size | Ø40 mm |
| Stroke | 15 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 ATE40X15S (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 | 500.3 N |
| 0.7 MPa | 729.0 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). |
|---|---|
| 40 | 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).
The spring holds the clamp open and air pulls it closed with 500.3 N at 0.5 MPa, so a power or air failure leaves the workpiece unclamped and the fixture safe to unload.
A 15 mm retraction stroke at 50-500 mm/s snaps a vacuum gripper back to its home position on a packaging machine carousel, with the -S magnet feeding a CMSE switch to confirm retraction each cycle.
The rod stays extended to hold a light gate or stopper clear; air retracts it only when the PLC commands a part release, and the spring restores the open state instantly on air loss.
Size the bore against your retraction load: the 32 mm bore pulls 296.0 N at 0.5 MPa while the 50 mm bore reaches 775.0 N, so the 40 mm at 500.3 N sits in the middle for medium clamping or return duties. Remember the spring returns the rod to its extended home position on air loss and will not hold a mid-stroke position. Mounting options include FA/FB flange, LB foot and CA/CB clevis, and this S-coded unit already carries the optional magnet for CMSE / DMSE switches. For new designs, order the ATE40X15 instead, as the ATP line is discontinued.
Replacement checklist
At 0.5 MPa the 40 mm bore pulls 500.3 N, rising to 729 N at 0.7 MPa, both net of the return spring. Operating pressure is 0.2-1.0 MPa (28-145 psi) with a 1.5 MPa (215 psi) proof pressure, and at least 0.2 MPa is required to beat the spring. Speed range is 50-500 mm/s over the 15 mm stroke, with air filtered to 40 um and a -20 to +70 C temperature window.
It is a compact short-body cylinder with a hard-anodized aluminium body, an S45C hard-chrome 12 mm rod, a female M8x1.25 rod thread, a 1/8" port and fixed TPU bumpers at both ends. The body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and CA/CB clevis mountings bolt to the standard face. The ATP family is no longer in production: order the ATE40X15 as the current drop-in and confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ATE40X15S replacement — usually within 7-8 hours.