This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED63X55, 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 ACPD63X55 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø63mm bore and 55mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED63X55 (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting, double-rod compact cylinder built to the DIN-standard ACP format, the ACPD63X55 pushes a 63 mm piston through a 55 mm stroke with a rod leaving both covers. Because each side of the piston sees the rod-side area, output is identical in both directions: 1458.1 N at 0.5 MPa and 2041.3 N at 0.7 MPa. The through-rod resists rotation and side load and gives a symmetric mount, 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) of clean, 40 um filtered air.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and gantry frames. Fixed TPU bumpers pad both ends of travel, and the hard-anodized aluminium body carries an S45C hard-chrome rod with M10x1.5 female thread. Note this model is discontinued: the current-production direct is the ACED63X55, and you should confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD63X55 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED63X55 |
| Bore size | Ø63 mm |
| Stroke | 55 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED63X55 (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 | 1458 N |
| 0.7 MPa | 2041 N |
| Max (@1.0 MPa) | 297 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). |
|---|---|
| 63 | 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).
The 1458.1 N bidirectional force at 0.5 MPa seats automotive bushings in a 55 mm stroke, and the return stroke ejects the part with identical force - no separate return cylinder needed.
The through-rod keeps the pusher plate square under side load as cartons are diverted off a conveyor, with the rear rod carrying a position flag for the PLC.
Equal force both ways clamps and releases a machined workpiece in a tight jig where the short body fits under the guard, lifting clamped parts of about 74 kg with margin.
At 55 mm stroke this sits well inside the 250 mm maximum standard stroke for the 63 mm bore, so it is a catalog item, not a made-to-order build. If 1458.1 N at 0.5 MPa is more than the job needs, the 50 mm bore version delivers 881.2 N; if you need more, step up to the 80 mm bore at 2356.2 N. Remember the piston drifts when air is lost, so add a rod lock or pilot check valve for a held load. FA/FB flange or LB foot mounting bolts straight to the ISO 21287 face, and the optional -S magnet code enables CMSE / DMSE switches - without -S there is no magnet. For new designs, order the ACED63X55 instead, as this ACPD is discontinued.
Replacement checklist
Because it is a double-rod cylinder, force is equal in both directions: 1458.1 N at 0.5 MPa and 2041.3 N at 0.7 MPa, using the rod-side area on each stroke. At 1.0 MPa the maximum output is 297.4 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s.
The short-body build saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end and FA/FB flange or LB foot options. The ACPD63X55 is discontinued; the current-production direct is the ACED63X55 in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED63X55 replacement — usually within 7-8 hours.