This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X40S 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 ACP25X40S
The AirTAC Airtac ACP Compact Cylinder ACP25X40S 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 ACE25X40S (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 → ACE25X40S
- 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 ACP25X40S
The ACP25X40S is a DIN-standard compact cylinder that works double acting: air extends and retracts the 10 mm rod. At its 40 mm stroke it pushes 245.4 N and pulls 206.2 N at 0.5 MPa, rising to 343.6 N at 0.7 MPa, with a theoretical peak of 50.1 kgf at 1.0 MPa. The S in the code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the hard-anodized aluminium body to report end positions.
Because the short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, this unit slots into tight jigs and guarding where a full-length body will not reach. In practice, plan on about 147 N of usable push at 0.5 MPa, which lifts roughly 15 kg vertically - halve that to about 7 kg if you want a 2:1 margin on a real part weight. Note that this model is discontinued: the current-production drop-in is the ACE25X40, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP25X40S Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP25X40S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X40S |
| 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 ACE25X40S (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 ACE25X40S 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 ACP25X40S
| 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 ACP25X40S Is Used
Small-parts press fitting
With 245.4 N push at 0.5 MPa and a 40 mm stroke, this bore presses dowel pins or bearings into aluminium housings on a bench-top fixture.
Position-checked clamping
The fitted -S magnet lets CMSE / DMSE switches confirm the clamp is fully closed before a robot or PLC releases the part.
Compact diverting gate
The short body fits beside a narrow conveyor lane, pushing cartons or trays off-line where a full-length cylinder cannot mount.
Replacing the Airtac ACP Compact Cylinder ACP25X40S with the ACE25X40S
Size both ways before you commit: the 20 mm bore gives 157.1 N push at 0.5 MPa if the load is lighter, while the 32 mm bore delivers 402.1 N when you need more force in the same short envelope. This 25 mm version with the fitted -S magnet suits any fixture needing position feedback via CMSE / DMSE switches. Remember the piston drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. Order the ACE25X40 as the current replacement and verify ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACE25X40S
- ✓ 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 ACP25X40S FAQ
At 0.5 MPa it pushes 245.4 N and pulls 206.2 N; at 0.7 MPa that rises to 343.6 N push and 288.6 N pull. The theoretical maximum is 50.1 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s.
Order the ACE25X40, the ISO 21287 successor in the same 25 mm bore, 40 mm stroke and force class. It keeps the short-body format and the FA/FB flange, LB foot and CA/CB clevis mounting family, but confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP was built to the DIN standard.
Request a Quote for the ACE25X40S
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X40S replacement — usually within 7-8 hours.