This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X100SB, 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 ACPD25X100SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø25mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED25X100SB (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD25X100SB pushes and pulls with the same 206.2 N at 0.5 MPa (288.6 N at 0.7 MPa) because each stroke works on the rod-side area. The 25 mm bore, 100 mm stroke through-rod resists rotation and side load, and the rear rod can carry a sensor flag. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches mount directly on the body. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi) of clean, 40 um filtered air.
The hard-anodized aluminium body with S45C hard-chrome rod is an ISO 21287-class short build that saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. A fixed TPU bumper sits at each end. Note: the ACPD family is discontinued; the current-production direct is the ACED25X100 - confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X100SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X100SB |
| Bore size | Ø25 mm |
| Stroke | 100 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 ACED25X100SB (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. |
| ×100 | 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 equal 206.2 N force in both directions suits a small stamping or marking jig on an electronics assembly line where the same clamp force is needed on the approach and return stroke.
With the fitted -S magnet and CMSE switches plus a flag on the rear rod, the 100 mm stroke drives a pick-and-place slide with end-of-travel and mid-position confirmation.
The through-rod gives a symmetric mount for a carton pusher that diverts boxes on the forward stroke and retracts with equal force, at conveyor speeds within 30-500 mm/s.
At 206.2 N per side, bore 25 sits between bore 20 (117.8 N at 0.5 MPa) and bore 32 (345.6 N at 0.5 MPa), so step up to 32 mm if your jig needs more margin at the same pressure. The 100 mm stroke is within the 150 mm standard limit for this bore. This -S code includes the magnet for CMSE / DMSE switches; the B code gives a male rod thread (M6x1.0 female on the blank version) with a PT port thread. FA/FB flange or LB foot mounts bolt to the ISO 21287 face. Remember the piston drifts if air is lost - add a rod lock or pilot check to hold a load. For new projects, order the ACED25X100 instead, as this model is discontinued.
Replacement checklist
Because it is a double-rod cylinder, force is equal in both directions: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa, 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 30-500 mm/s. As a planning rule, treat about 124 N as the usable working force at 0.5 MPa, roughly a 6 kg vertical lift with margin.
The ACPD family is no longer in production. The current direct is the ACED25X100 (swap the P for an E), an ISO 21287 compact cylinder in the same 25 mm bore, 100 mm stroke and force class. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, since the ACP was built to a DIN-standard footprint. FA/FB flange and LB foot mounts, plus the optional -S magnet for CMSE / DMSE switches, carry over in the ACE family.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X100SB replacement — usually within 7-8 hours.