This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X35B, 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 ACPD25X35B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø25mm bore and 35mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED25X35B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting, double-rod compact cylinder built to the DIN-standard ACP pattern, the discontinued ACPD25X35B pushes a 25 mm bore through a 35 mm stroke with a rod leaving both covers. Because each side works on the rod-side area, output is identical in either direction: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa, both ways. The male-threaded rod end (the B code) bolts straight to tooling, and the through-rod resists rotation and side load while the rear rod can carry a sensor flag on a symmetric mount.
The hard-anodized aluminium body with an S45C hard-chrome rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, with fixed TPU bumpers at both ends. 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 and gantries. This model is discontinued - the current direct is ACED25X35, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X35B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X35B |
| Bore size | Ø25 mm |
| Stroke | 35 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 ACED25X35B (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. |
| ×35 | 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 equal force in both directions lets one ACPD25X35B clamp and then eject a machined aluminium bracket on a CNC fixture, with the male rod thread picking up a custom clamp tip.
With rods on both covers, a packaging line can index small cartons from either side of the 35 mm stroke at 30-500 mm/s, using the rear rod to trip a flag on a photo-eye bracket.
The through-rod resists rotation and side load, driving a light slide on an electronics assembly gantry with identical 288.6 N force at 0.7 MPa in each travel direction.
At 206.2 N per direction at 0.5 MPa, the 25 mm bore suits clamping and transfer jobs in the 12-20 kg class; step down to the 20 mm bore (117.8 N) for lighter tooling or up to the 32 mm bore (345.6 N) when the load grows. The through-rod gives equal force both ways, so size the work off the rod-side figure rather than a larger push rating. Note that a plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must stay put. Mounting is FA/FB flange or LB foot, and the male rod thread (B code) takes standard I/Y knuckles. If you need position sensing, order the -S variant with the optional magnet for CMSE / DMSE switches - this non-S model carries no magnet, so no sensor can be fitted. For new builds, specify the current-production ACED25X35 instead and verify the ISO 21287 footprint.
Replacement checklist
Yes - the double-rod design means both strokes use the rod-side area, so output is equal either way: 206.2 N at 0.5 MPa, 288.6 N at 0.7 MPa, and up to 42.0 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, air filtered to 40 um, -20 to +70 C. The 35 mm stroke sits well inside the 150 mm maximum standard stroke for the 25 mm bore.
Only if the cylinder was ordered with the optional -S magnet; this ACPD25X35B has no magnet, so CMSE / DMSE reed or solid-state switches cannot be mounted - specify -S on a new order. The ACPD family is discontinued: the current-production direct is ACED25X35 (swap the P for an E), which matches the same bore, stroke and force class in the ISO 21287 short body. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows the older DIN-standard pattern.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X35B replacement — usually within 7-8 hours.