This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X40B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X40B 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.
Airtac ACP Compact Cylinder ACP25X40B
The AirTAC Airtac ACP Compact Cylinder ACP25X40B is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 40mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X40B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ25 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE25X40B
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACP Compact Cylinder ACP25X40B
The ACP25X40B is a double acting DIN-standard compact cylinder with a 25 mm bore and 40 mm stroke, built on a hard-anodized aluminium body with an S45C hard-chrome piston rod and a fixed TPU bumper at both ends. At 0.5 MPa it pushes 245.4 N and pulls 206.2 N; at 0.7 MPa those rise to 343.6 N and 288.6 N, with a theoretical maximum of 50.1 kgf at 1.0 MPa. The B code gives a male rod thread, and the air port is M5x0.8. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs, guards and gantries where a full-length body will not fit.
In practice, plan on about 147 N of usable push at 0.5 MPa rather than the full 245.4 N rating, which corresponds to lifting roughly 12 kg vertically with a 2:1 margin - enough for clamping small brackets or ejecting light parts. Note that this model is discontinued: the current-production drop-in is the ACE25X40 (swap the P for an E), which matches the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN standard. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speeds of 30-500 mm/s, and a temperature window of -20 to +70 C on air filtered to 40 um.
Airtac ACP Compact Cylinder ACP25X40B Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP25X40B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X40B |
| Bore size | Ø25 mm |
| Stroke | 40 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 ACE25X40B (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.
Theoretical Output Force (Ø25mm)
| 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 ACE25X40B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACP Compact Cylinder ACP25X40B
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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).
Where the Airtac ACP Compact Cylinder ACP25X40B Is Used
Small-part clamping fixture
With about 147 N of usable push at 0.5 MPa, the 25 mm bore clamps aluminium brackets or plastic housings in machining and assembly jigs, and the 40 mm stroke clears part loading by hand.
Carton flap tucker
The 343.6 N push at 0.7 MPa is enough to fold and tuck top flaps on small cartons at packaging stations, where the short body fits under low guarding.
Light part lift-off
Lifts about 12 kg vertically with a 2:1 margin at 0.5 MPa, so it suits raising small trays or stamped parts off a nest in electronics and metalworking cells.
Replacing the Airtac ACP Compact Cylinder ACP25X40B with the ACE25X40B
At 25 mm bore and 40 mm stroke, this size sits mid-range: a 20 mm bore delivers 157.1 N push at 0.5 MPa while a 32 mm bore reaches 402.1 N, so step down for lighter clamps or up for heavier ejection duties. If the load must stay put when air is lost, add a rod lock or pilot check valve, because a plain cylinder of this type drifts when the valve centres. Mounting options include FA/FB flange, LB foot and CA/CB clevis, and the optional -S magnet enables CMSE / DMSE switches - this unit has no S code, so no magnet is fitted. Order ACE25X40 as the current replacement and verify ISO 21287 mounting dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACE25X40B
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACP Compact Cylinder ACP25X40B FAQ
At 0.5 MPa it pushes 245.4 N and pulls 206.2 N. At 0.7 MPa the figures are 343.6 N push and 288.6 N pull. The theoretical maximum is 50.1 kgf at 1.0 MPa. For real work, budget about 147 N of push at 0.5 MPa, which equates to lifting roughly 12 kg vertically with a 2:1 margin. The rod is 10 mm with a male thread (B code), the port is M5x0.8, and speed runs 30-500 mm/s.
Yes, the ACP family is no longer in production. The current-production drop-in is ACE25X40 - the same 25 mm bore, 40 mm stroke and force class in the ISO 21287 short body - so confirm the ISO 21287 mounting dimensions before swapping. For sensing, the magnet is the optional -S code: order ACP25X40BS (or the ACE equivalent) to run CMSE or DMSE reed or solid-state switches. This unit without the S code carries no magnet, so no switch can be mounted on it.
Request a Quote for the ACE25X40B
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X40B replacement — usually within 7-8 hours.