This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE100X400B, 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 ACP100X400B is a double acting DIN-standard tight/compact air cylinder with a Ø100mm bore and 400mm stroke, 1/4" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE100X400B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder built to the DIN-standard short-body format, the ACP100X400B pairs a 100 mm bore with a 400 mm male-thread rod stroke. At 0.5 MPa it pushes 3927 N and pulls 3681.6 N, rising to 5497.8 N push at 0.7 MPa, with a theoretical peak of 800.9 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, with a fixed TPU bumper at each end.
Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, this bore fits deep presses and long-stroke gantries where a full-length body will not. Note the 400 mm stroke is beyond the 300 mm standard for this bore, so it is made to order. This model is discontinued: the current-production direct is ACE100X400, and you should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP100X400B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE100X400B |
| Bore size | Ø100 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 300 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE100X400B (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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | 5154 N |
| Max (@1.0 MPa) | 801 kgf | |
The ACE100X400B 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). |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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 3927 N push at 0.5 MPa clinches steel brackets in a stamping jig, with the 400 mm stroke clearing deep die sets on the return.
Swings a heavy safety gate on a warehouse conveyor line; the male rod thread takes a clevis knuckle directly.
At this bore size the step below is 80 mm (2513 N push at 0.5 MPa) and there is no larger standard bore, so 100 mm is the top of the range for the heaviest clamps and presses. The B code gives a male rod thread on the 25 mm rod with a 1/4" PT port. If the load must stay put when air is lost, add a rod lock or pilot check valve, since the piston will drift on its own. FA/FB flange, LB foot, CA/CB clevis, CR, SDB and FTC mounts bolt to the same face, and the optional -S magnet enables CMSE / DMSE switches. Order ACE100X400 as the current replacement.
Replacement checklist
At 0.5 MPa it pushes 3927 N and pulls 3681.6 N; at 0.7 MPa, 5497.8 N push and 5154.2 N pull. The theoretical maximum is 800.9 kgf at 1.0 MPa. It is double acting, runs 30-500 mm/s on 0.15-1.0 MPa (22-145 psi) air, and the 400 mm stroke is a made-to-order length above the 300 mm standard for this bore.
The ACE100X400, made by swapping the P for an E, is the current ISO 21287 direct with the same 100 mm bore, 400 mm stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to the DIN standard. The fixed TPU bumpers, 1/4" port and optional -S magnet for CMSE / DMSE switches carry over in function.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE100X400B replacement — usually within 7-8 hours.