This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE80X125B, 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 ACP80X125B is a double acting DIN-standard tight/compact air cylinder with a Ø80mm bore and 125mm stroke, 1/4" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE80X125B (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP80X125B is a double acting DIN-standard compact cylinder with an 80 mm bore and 125 mm stroke, driving a 20 mm hard-chrome S45C rod from a hard-anodized aluminium body. At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N, rising to 3518.6 N on extension at 0.7 MPa, with a theoretical ceiling of 512.6 kgf at 1.0 MPa. Its short ISO 21287-class body saves roughly half the mounting length of an ISO 15552 profile cylinder, which is why it slots into presses and gantries where a full-length body simply will not fit.
The male rod thread (B code) suits knuckle and tooling attachments, ports are 1/4" PT, and fixed TPU bumpers decelerate the piston at each end. Note this model is discontinued; the current direct is ACE80X125, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP80X125B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE80X125B |
| Bore size | Ø80 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.75 |
| 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 ACE80X125B (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 | 2513 N | 2356 N |
| 0.7 MPa | 3519 N | 3299 N |
| Max (@1.0 MPa) | 513 kgf | |
The ACE80X125B 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). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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).
A 2513.3 N push at 0.5 MPa suits a bench-top forming or staking press on aluminium brackets, with the 125 mm stroke clearing the part by hand.
The short body fits inside conveyor guarding to swing a heavy stop gate, saving about 50% of the length an ISO 15552 profile cylinder would need.
At this force class, compare against neighbours: a 63 mm bore gives 1558.6 N push at 0.5 MPa, while a 100 mm bore reaches 3927.0 N, so the 80 mm sits squarely in the mid-heavy range for clamping and pressing. If the load must stay put when air is lost, add a rod lock or pilot check valve - the bumper will not hold position. Foot (LB), flange (FA/FB) and clevis (CA/CB) mounts bolt to the standard face, and CMSE / DMSE switches work only when the optional -S magnet is ordered (this code has none). Since ACP is discontinued, order ACE80X125 as the current-production equivalent and verify the ISO 21287 hole pattern first.
Replacement checklist
At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa push rises to 3518.6 N; theoretical maximum is 512.6 kgf at 1.0 MPa. It is double acting, runs 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, moves at 30-500 mm/s, and ports are 1/4" PT on the 80 mm bore.
The ACE80X125 is the current ISO 21287 successor in the same bore, stroke and force class. The ACP itself is a short-body compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod, fixed TPU bumpers and FA/FB, LB or CA/CB mounting; the magnet is the optional -S code for CMSE / DMSE switches. Confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE80X125B replacement — usually within 7-8 hours.