This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X15B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X15B 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 ACP Compact Cylinder ACP25X15B is a double acting DIN-standard tight/compact air cylinder with a Ø25mm 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 ACE25X15B (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP25X15B is a double acting DIN-standard compact cylinder with a 25 mm bore and a short 15 mm stroke, built on a hard-anodized aluminium body with an S45C hard-chrome piston rod and a fixed TPU bumper at each end. At 0.5 MPa it pushes 245.4 N and pulls 206.2 N, rising to 343.6 N push at 0.7 MPa, with a theoretical maximum of 50.1 kgf at 1.0 MPa. The B code gives a male rod thread on the 10 mm rod, and the air port is M5x0.8. Operating range is 0.15-1.0 MPa (22-145 psi) at speeds of 30-500 mm/s.
Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures where a full-length cylinder will not fit. As a working rule, plan on roughly 147 N of usable push at 0.5 MPa, which lifts about 15 kg vertically - halve that for a 2:1 margin on real part weights. Note that this model is discontinued: the current-production drop-in is the ACE25X15, so confirm the ISO 21287 mounting dimensions before swapping. This unit has no magnet; order the -S code if you need CMSE or DMSE switch sensing.
| Model | Airtac ACP Compact Cylinder ACP25X15B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X15B |
| Bore size | Ø25 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE25X15B (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
The ACE25X15B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 25 | 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 245.4 N push at 0.5 MPa suits a small jig for staking terminals or pressing dowel pins into aluminium housings on a manual assembly bench.
With a 15 mm stroke and about 15 kg vertical-lift equivalent, it clamps small machined brackets against a hard stop inside a compact milling fixture.
The short body fits under low guarding to hold folded flaps or push a light carton sideways on a semi-automatic taping station.
At 25 mm bore this sits mid-range: the 20 mm bore delivers 157.1 N push at 0.5 MPa while the 32 mm bore reaches 402.1 N, so pick the ACP25X15B when your clamp or press needs roughly 200-250 N of working force. Remember a plain cylinder drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. Mounting options include FA/FB flange, LB foot and CA/CB clevis, and the optional -S magnet enables CMSE/DMSE switches. Since the ACP25X15B is discontinued, order the ACE25X15 as the current replacement and verify the ISO 21287 footprint first.
Replacement checklist
At 0.5 MPa it pushes 245.4 N and pulls 206.2 N; at 0.7 MPa it pushes 343.6 N and pulls 288.6 N. The theoretical maximum is 50.1 kgf at 1.0 MPa. Bore is 25 mm, stroke 15 mm, rod 10 mm with a male thread (B code), and the port is M5x0.8. It is double acting with a fixed TPU bumper at both ends and runs 30-500 mm/s on air filtered to 40 um.
No - the ACP family is discontinued. The current-production drop-in is the ACE25X15 (swap the P for an E), which matches the same bore, stroke and force class in the ISO 21287 short-body format. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, and add the -S code on the ACE if you want the optional magnet for CMSE/DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X15B replacement — usually within 7-8 hours.