This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE63X55B, 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 ACP Compact Cylinder ACP63X55B is a double acting 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 ACE63X55B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder in the DIN-standard ACP series, the ACP63X55B pairs a 63 mm bore with a 55 mm stroke and a male rod thread (B code). At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa those rise to 2182.1 N and 2041.3 N, with a theoretical ceiling of 317.9 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome rod run on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight welding jigs and press fixtures. Note this model is discontinued: the current direct is ACE63X55, same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping. As a buyer shortcut, halve the lift equivalent of 158 kgf (1558.6 N / 9.81) and plan on about 79 kg of vertical lifting with margin, or roughly 935 N of usable work at 0.5 MPa.
| Model | Airtac ACP Compact Cylinder ACP63X55B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE63X55B |
| Bore size | Ø63 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| 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 ACE63X55B (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
The ACE63X55B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACP | DIN compact cylinder (double-acting, 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).
2182.1 N at 0.7 MPa clinches or stakes aluminium brackets in a machining cell, with the 55 mm stroke sized for short-travel forming.
The short body tucks between fixture rails where a full-length profile cylinder will not fit, holding sheet steel through the weld cycle.
About 935 N of usable push at 0.5 MPa slides cartons off a conveyor stop into a pallet pattern at up to 500 mm/s.
Size both ways: if 1558.6 N at 0.5 MPa is more than your jig needs, the 50 mm bore ACP50 delivers 981.7 N push; if you need headroom beyond 2182.1 N at 0.7 MPa, step up to the 80 mm bore at 2513.3 N. Remember a plain ACP drifts when air is lost - add a rod lock or pilot check valve for held loads. FA/FB flange, LB foot and CA/CB clevis mountings bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches (this code has no magnet). Order ACE63X55 as the current-production replacement.
Replacement checklist
Push 1558.6 N and pull 1458.1 N at 0.5 MPa; push 2182.1 N and pull 2041.3 N at 0.7 MPa; theoretical maximum 317.9 kgf at 1.0 MPa. It is double acting, 63 mm bore, 55 mm stroke, 16 mm rod with male thread, 1/8" PT port, 0.15-1.0 MPa (22-145 psi) operating pressure, 30-500 mm/s speed and -20 to +70 C.
Order ACE63X55, the current ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in a matching short body. Confirm the ISO 21287 mounting dimensions before the swap, since the ACP was built to a DIN standard, and add the -S code on the ACE if you need CMSE / DMSE switch sensing.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE63X55B replacement — usually within 7-8 hours.