This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X55, 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.
Airtac ACPD Double Rod Compact Cylinder ACPD25X55
The AirTAC ACPD Double Rod Compact Cylinder ACPD25X55 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø25mm bore and 55mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED25X55 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ25 mm
- Stroke55 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- StatusDiscontinued → ACED25X55
- 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 ACPD Double Rod Compact Cylinder ACPD25X55
The ACPD25X55 is a double acting, double-rod compact cylinder: a piston rod exits both covers, so it delivers an equal 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 through-rod resists rotation and side load, gives a symmetric mounting point, and leaves the rear rod free to carry a sensor flag. A fixed TPU bumper sits at each end, and stroke speed runs 30-500 mm/s.
Its hard-anodized aluminium body follows the short ISO 21287 format, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and gantries. Note this model is discontinued: the current-production direct is the ACED25X55, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD25X55 Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X55 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X55 |
| Bore size | Ø25 mm |
| Stroke | 55 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 ACED25X55 (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 | 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).
Model Code: Airtac ACPD Double Rod Compact Cylinder ACPD25X55
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 25 | Bore size in mm. |
| ×55 | 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).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD25X55 Is Used
Symmetric jig clamping
The through-rod clamps a machined aluminium bracket from either side with an equal 206.2 N at 0.5 MPa, ideal for a drilling fixture where both rod ends must present the same force.
Bidirectional pusher on a packaging line
Equal force in both directions lets one cylinder divert cartons left or right on a conveyor without re-plumbing, at speeds up to 500 mm/s.
Sensor flag carrier
The rear rod drives a flag past CMSE or DMSE switches (when the optional -S magnet is ordered) to confirm gate position on an assembly station.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD25X55 with the ACED25X55
At 206.2 N per side (0.5 MPa), the 25 mm bore covers light clamping and transfer duty. Step down to the ACPD20 (117.8 N) for smaller fixtures, or up to the ACPD32 (345.6 N) when the load grows. The 55 mm stroke sits well inside the 150 mm standard range for this bore. Remember the piston drifts if air is lost - add a rod lock or pilot check where a load must stay put. FA/FB flange and LB foot mountings bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches. Order the ACED25X55 as the current replacement.
Replacement checklist
- ✓ Current-production ACE → ACED25X55
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPD Double Rod Compact Cylinder ACPD25X55 FAQ
Yes - as a double-rod cylinder both strokes use the rod-side area, so output is equal each way: 206.2 N at 0.5 MPa, 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.
Order the ACED25X55: swap the P for an E and you get the current-production ISO 21287 compact cylinder in the same 25 mm bore, 55 mm stroke and force class. The ACP is DIN-standard, so confirm the ISO 21287 mounting dimensions before swapping, and remember the -S magnet option if you need CMSE / DMSE switch sensing.
Request a Quote for the ACED25X55
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X55 replacement — usually within 7-8 hours.