This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X70B, the same code under the new prefix. 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 ACPD Double Rod Compact Cylinder ACPD25X70B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø25mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED25X70B (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD25X70B pushes 206.2 N in each direction at 0.5 MPa (288.6 N at 0.7 MPa) because both strokes work on the rod-side area of the 25 mm bore. The male rod thread (B code) bolts straight to your tooling, and the through-rod resists rotation and side load while the rear rod can carry a sensor flag. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi).
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and gantries. A fixed TPU bumper sits at each end, and the hard-anodized aluminium body carries an S45C hard-chrome rod. Note: this model is discontinued - the current direct is ACED25X70; confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X70B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X70B |
| Bore size | Ø25 mm |
| Stroke | 70 mm |
| Acting type | Double acting, double rod |
| 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 ACED25X70B (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 (double rod, adjustable stroke).
The 206.2 N symmetric push clamps small aluminium brackets in a CNC drilling jig, with the male rod thread taking a custom clamp tip.
Equal force both ways moves a 5 kg tray between two conveyor stops on a packaging line, recovering the stroke at the same 206.2 N.
The rear rod carries a flag for position feedback, sliding a vision-check gate on a PCB line within the 70 mm stroke.
At 206.2 N per side (0.5 MPa), this 25 mm bore suits clamping and transfer loads up to roughly 12 kg of real work. Step down to ACPD20X70B (117.8 N) for lighter fixtures or up to ACPD32X70B (345.6 N) when more force is needed. The piston drifts when air is lost, so add a rod lock or pilot check for held loads. Mounting: FA/FB flange or LB foot; the optional -S magnet enables CMSE / DMSE switches. This unit is discontinued - order ACED25X70 as the current replacement.
Replacement checklist
Because a rod exits both covers, force is equal in both directions: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa (rod-side area, 25 mm bore, 70 mm stroke). Peak output at 1.0 MPa is 42.0 kgf. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, port M5x0.8, rod 10 mm with male thread.
No - the ACPD family is discontinued. The current-production direct is ACED25X70 (swap the P for an E), an ISO 21287 cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP is DIN-standard. If you need position switches, order the -S magnet version with CMSE / DMSE sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X70B replacement — usually within 7-8 hours.