This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X70SB, 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 ACPD25X70SB 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 ACED25X70SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD25X70SB delivers 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. The 25 mm bore takes a 10 mm through-rod with a male thread on each end, and the 70 mm stroke sits well inside the 150 mm standard limit for this bore. Its hard-anodized aluminium body is an ISO 21287 short build, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and gantries.
Because the piston is not held by anything when air is lost, a suspended load will drift - add a rod lock or pilot check if you need a held position. The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag. Fixed TPU bumpers sit at both ends, speed runs 30-500 mm/s, and the -S magnet on this model lets you bolt on CMSE or DMSE switches. This model is discontinued; the current direct is the ACED25X70, and buyers should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X70SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X70SB |
| 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 ACED25X70SB (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 70 mm stroke and 206.2 N per side let one cylinder clamp a machined aluminium bracket from both ends of a drilling jig, with the male thread taking a knuckle on each rod.
Equal force in both directions suits a reciprocating pusher that indexes cartons into a case packer, where the return stroke needs the same 206.2 N as the push.
The rear rod carries a sensor flag, and the fitted -S magnet reads out via CMSE or DMSE switches so the PLC confirms the gate is fully retracted before the robot cycles.
For 70 mm of travel with about 206 N of force both ways, the 25 mm bore is the right pick; step down to the 20 mm bore (117.8 N at 0.5 MPa) for lighter clamping or up to the 32 mm bore (345.6 N) when the part weight grows. The male rod thread (B code) suits I/Y knuckles and threaded fixtures, while FA/FB flanges, LB feet, CA/CB clevis, CR, SDB pivot and FTC brackets bolt straight to the ISO 21287 face. Since ACPD is discontinued, order the ACED25X70 as the current-production equivalent in the same bore, stroke and force class.
Replacement checklist
Yes - the double-rod design works on the rod-side area both ways, so you get 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa in each direction, with a maximum of 42.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed runs 30-500 mm/s. Note the model is discontinued; the ACED25X70 is the current replacement.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits shallow guards and tight fixtures. Sensing is via the optional -S magnet - this model carries it - so CMSE or DMSE reed or solid-state switches mount directly on the body. Fixed TPU bumpers at both ends absorb the end-of-stroke impact, and the port is M5x0.8.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X70SB replacement — usually within 7-8 hours.