This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X50B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X50B 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 ACP25X50B
The AirTAC Airtac ACP Compact Cylinder ACP25X50B is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 50mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X50B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ25 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- StatusDiscontinued → ACE25X50B
- 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 ACP25X50B
The ACP25X50B is a double acting DIN-standard compact cylinder with a 25 mm bore and 50 mm stroke, driving a 10 mm hard-chrome S45C rod through a male thread (the B code). 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 ceiling of 50.1 kgf at 1.0 MPa. Its hard-anodized aluminium body with threaded aluminium covers is an ISO 21287 short build, roughly 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and fixed TPU bumpers sit at both ends.
Practical sizing: keep real work to about 147 N at 0.5 MPa (roughly 60% of the push rating), which means this unit lifts about 12 kg vertically with a 2:1 margin. The rod end is male thread and the port is M5x0.8. This model is discontinued: the current-production drop-in is ACE25X50 in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping. Note that a plain cylinder of this type drifts when air is lost - use a rod lock or pilot check valve if the load must be held.
Airtac ACP Compact Cylinder ACP25X50B Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP25X50B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X50B |
| Bore size | Ø25 mm |
| Stroke | 50 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 ACE25X50B (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 ACE25X50B 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 ACP25X50B
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 ACP25X50B Is Used
Fixture clamping on CNC jigs
The 245.4 N push at 0.5 MPa clamps aluminium brackets and small machined parts in milling fixtures, and the short ISO 21287 body fits where a full-length profile cylinder cannot.
Small-part push-off on packaging lines
A 50 mm stroke ejects cartons or blister packs off a conveyor at 30-500 mm/s, with the male rod thread taking a standard knuckle or plate.
Lab and test-rig actuation
Clean filtered air (40 um), -20 to +70 C range and the M5x0.8 port make this 25 mm unit easy to pipe into compact test stations and sample handlers.
Replacing the Airtac ACP Compact Cylinder ACP25X50B with the ACE25X50B
At 245.4 N push (0.5 MPa), the 25 mm bore suits clamping and positioning loads up to about 147 N of continuous work. Step down to a 20 mm bore (157.1 N push) for lighter fixtures, or up to 32 mm (402.1 N) when the job needs more muscle. Stroke 50 mm sits well inside the 150 mm maximum standard stroke for this bore. The B code gives a male rod thread; order the -S variant if you later need the optional magnet for CMSE / DMSE switches - without it there is no magnet. Mount with FA/FB flange, LB foot or CA/CB clevis. For new builds, specify the ACE25X50 replacement instead.
Replacement checklist
- ✓ Current-production ACE → ACE25X50B
- ✓ 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 ACP25X50B FAQ
Push is 245.4 N and pull 206.2 N at 0.5 MPa; at 0.7 MPa it reaches 343.6 N push and 288.6 N pull, with a theoretical maximum of 50.1 kgf at 1.0 MPa. It is double acting, 25 mm bore, 50 mm stroke, 10 mm male-thread rod, M5x0.8 port, operating 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, with fixed TPU bumpers at both ends. In practice, plan on about 147 N of usable push, enough to lift about 12 kg vertically with a 2:1 margin.
Order the ACE25X50, the current ISO 21287 successor made by swapping the P for an E. It matches the same 25 mm bore, 50 mm stroke and force class with a short compact body, and accepts the FA/FB, LB and CA/CB mounting family. Because the ACP was built to a DIN standard, verify the ISO 21287 mounting dimensions against your fixture before the swap. If you need position sensing, the ACE takes switches the same way the ACP did with its optional -S magnet code.
Request a Quote for the ACE25X50B
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X50B replacement — usually within 7-8 hours.