This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X45S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X45S 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 ACP25X45S
The AirTAC Airtac ACP Compact Cylinder ACP25X45S is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 45mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X45S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ25 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE25X45S
- 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 ACP25X45S
The ACP25X45S is a double acting DIN-standard compact cylinder with a 25 mm bore and 45 mm stroke. At 0.5 MPa it pushes 245.4 N and pulls 206.2 N, rising to 343.6 N and 288.6 N at 0.7 MPa. The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. Air supply runs 0.15-1.0 MPa (22-145 psi) with a speed range of 30-500 mm/s.
This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be fitted directly for end-of-stroke sensing. The hard-anodized aluminium body pairs with an S45C hard-chrome rod and a fixed TPU bumper at each end. Plan on about 147 N of usable push at 0.5 MPa, which lifts roughly 7 kg vertically with a 2:1 margin. Note that ACP is discontinued: the current drop-in is ACE25X45, and buyers should confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP25X45S Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP25X45S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X45S |
| Bore size | Ø25 mm |
| Stroke | 45 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 ACE25X45S (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 ACE25X45S 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 ACP25X45S
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 25 | Bore size in mm. |
| ×45 | 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 ACP25X45S Is Used
Fixture clamping on CNC jigs
The 245.4 N push at 0.5 MPa and 45 mm stroke suit swing clamps and toe clamps on small CNC milling fixtures where the short body must fit inside the jig footprint.
Position-verified ejection
With the -S magnet fitted, CMSE or DMSE switches confirm full extension when this cylinder ejects blister packs or cartons off a packaging line conveyor.
Press-fit of connector pins
About 147 N of usable push at 0.5 MPa presses small connector pins and bushings into plastic housings on electronics assembly benches.
Replacing the Airtac ACP Compact Cylinder ACP25X45S with the ACE25X45S
For a 45 mm stroke at this force level, the 25 mm bore is a solid middle choice: the 20 mm bore delivers 157.1 N push at 0.5 MPa, while the 32 mm bore reaches 402.1 N if your fixture grows. Remember the rod drifts when air is lost, so add a rod lock or pilot check valve for held loads. FA/FB flange, LB foot and CA/CB clevis mountings bolt to the same face, and the -S magnet in this code enables CMSE/DMSE switch sensing. Since ACP is discontinued, order ACE25X45 as the current-production replacement and verify ISO 21287 mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACE25X45S
- ✓ 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 ACP25X45S FAQ
At 0.5 MPa the 25 mm bore pushes 245.4 N and pulls 206.2 N; at 0.7 MPa it pushes 343.6 N and pulls 288.6 N, with a theoretical maximum of 50.1 kgf at 1.0 MPa. The ACP family is discontinued, so the current-production replacement is ACE25X45 - the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since ACP was built to the DIN standard.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and CA/CB clevis brackets bolt straight to its face. The S in the code means the optional -S magnet is fitted, so CMSE and DMSE reed or solid-state switches can be mounted for stroke detection. The fixed TPU bumpers only decelerate the piston at each end and never hold a load.
Request a Quote for the ACE25X45S
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X45S replacement — usually within 7-8 hours.