This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE100X400, 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 ACP100X400 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 ACE100X400 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP100X400 is a double acting compact cylinder with a 100 mm bore and a 400 mm rod stroke, built on the DIN-standard short-body format with a hard-anodized aluminium body and an S45C hard-chrome piston rod. At 0.5 MPa it pushes with 3927 N and pulls with 3681.6 N, rising to 5497.8 N and 5154.2 N at 0.7 MPa, with a theoretical peak of 800.9 kgf at 1.0 MPa. The 400 mm stroke is beyond the 300 mm standard limit for this bore, so it is a made-to-order build - plan the lead time accordingly.
Because the short body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, this big-bore unit fits long-stroke presses and gantries that cannot accommodate a full-length body. Fixed TPU bumpers sit at both ends, the port is 1/4" PT, and the rod ends in a female M16x1.5 thread. This model is discontinued - the current-production successor is the ACE100X400, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP100X400 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE100X400 |
| 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 ACE100X400 (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 ACE100X400 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 and 400 mm stroke suit a scrap or cardboard baler ram, where the short body keeps the machine frame compact compared with an ISO 15552 profile cylinder.
A 1/4" PT port and 5497.8 N of push at 0.7 MPa give a sand or slag gate the force it needs, with the -S magnet code adding CMSE / DMSE end-position sensing when ordered.
For a 400 mm stroke you are already in made-to-order territory, since bore 100 tops out at 300 mm as a standard stroke - order early and confirm the delivery date. If your load needs less than about 1558 N of push at 0.5 MPa, a bore 63 unit (1558.6 N) is the smaller step down; if you need more than 3927 N, there is no larger ACP bore, so consider parallel cylinders or a higher supply pressure within the 0.15-1.0 MPa (22-145 psi) range. Remember that a plain cylinder of this type drifts when air is lost - for a held vertical load add a rod lock or pilot check valve. Mounting brackets FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot and FTC bolt to the standard face, and the optional -S magnet enables CMSE / DMSE switches if you order that code. The discontinued ACP100X400 is replaced by the ACE100X400 in the same bore, stroke and force class.
Replacement checklist
At 0.5 MPa it pushes 3927 N and pulls 3681.6 N; at 0.7 MPa those rise to 5497.8 N and 5154.2 N, and the theoretical maximum is 800.9 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, speed 30-500 mm/s and a temperature range of -20 to +70 C. The 400 mm stroke is non-standard for this bore and is made to order.
Order the ACE100X400, the current-production ISO 21287 successor: swap the P for an E and you get the same 100 mm bore, 400 mm stroke and force class in a matching short body. Because the ACP was built to the DIN standard, confirm the ISO 21287 mounting dimensions and the FA/FB flange, LB foot or CA/CB clevis interface against your fixture before swapping. Rod end is a female M16x1.5 thread on both families.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE100X400 replacement — usually within 7-8 hours.