This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE50X80B, 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 ACP50X80B is a double acting DIN-standard tight/compact air cylinder with a Ø50mm bore and 80mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE50X80B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder in the DIN-standard ACP series, the ACP50X80B delivers 981.7 N push and 881.2 N pull at 0.5 MPa, rising to 1374.4 N at 0.7 MPa, with a theoretical peak of 200.2 kgf at 1.0 MPa. The B code gives a male rod thread on the 16 mm rod, and the 1/8" port serves the 50 mm bore. Air supply runs 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof limit, and rod speed spans 30-500 mm/s.
The hard-anodized aluminium body with an S45C hard-chrome rod keeps the short ISO 21287-class build roughly 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into tight press fixtures and guarding. A fixed TPU bumper at each end absorbs end-of-travel impact. Note this model is discontinued: the current-production direct is the ACE50X80, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP50X80B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE50X80B |
| Bore size | Ø50 mm |
| Stroke | 80 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 ACE50X80B (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 | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 kgf | |
The ACE50X80B 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). |
|---|---|
| 50 | Bore size in mm. |
| ×80 | 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).
With 981.7 N push at 0.5 MPa, the 50 mm bore drives a small riveting or staking head on an electronics assembly bench, where the 80 mm stroke clears part loading by hand.
The short body fits inside CNC fixture risers and guarding where a full-length profile cylinder will not, holding brackets or castings during a milling or drilling cycle.
Mounted via an FB flange, the cylinder presses lids or hold-down bars on a carton packing station, with the male rod thread picking up a swing arm or pad directly.
At 981.7 N push at 0.5 MPa this 50 mm bore suits clamping and pressing in the 60-90 kg work range; step down to the 40 mm bore (628.3 N) for lighter jigs or up to the 63 mm bore (1558.6 N) for heavier forming. The 80 mm stroke sits well inside the 250 mm maximum standard stroke for this bore. Choose the male rod thread (B) for knuckle or tooling attachments, and add FA/FB flange, LB foot or CA/CB clevis hardware to match the fixture. If the load must stay put when air is lost, add a rod lock or pilot check valve, since the piston will drift. Order the ACE50X80 instead: this ACP model is discontinued, and the ACE matches the same bore, stroke and force class.
Replacement checklist
At 0.5 MPa it pushes 981.7 N and pulls 881.2 N; at 0.7 MPa those rise to 1374.4 N and 1233.7 N. The theoretical maximum is 200.2 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and rod speed runs 30-500 mm/s.
Order the ACE50X80, the current-production ISO 21287 successor: swap the P for an E and you keep the same 50 mm bore, 80 mm stroke and force class. Confirm the ISO 21287 mounting dimensions before the swap, since the ACP followed the older DIN-standard compact layout. FA/FB flange, LB foot and CA/CB clevis brackets bolt to the ACE face, and the optional -S magnet code enables CMSE / DMSE switches; this unit has no magnet fitted, so position sensing is not possible without ordering the -S version.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE50X80B replacement — usually within 7-8 hours.