This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE40X75B, 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 ACP40X75B is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 75mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X75B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder in the DIN-standard ACP series, the ACP40X75B pairs a 40 mm bore with a 75 mm stroke and a male rod thread (the B code). At 0.5 MPa it pushes 628.3 N and pulls 571.8 N, rising to 879.6 N on extension at 0.7 MPa, with a theoretical ceiling of 128.1 kgf at 1.0 MPa. Its hard-anodized aluminium body and S45C hard-chrome rod run on 0.15-1.0 MPa (22-145 psi) filtered air at 30-500 mm/s.
The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. A fixed TPU bumper sits at both ends. Note this model is discontinued: the current direct is ACE40X75, so confirm ISO 21287 mounting dimensions before ordering.
| Model | Airtac ACP Compact Cylinder ACP40X75B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X75B |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE40X75B (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 | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 kgf | |
The ACE40X75B 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). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 628.3 N push at 0.5 MPa seats flaps and labels on a 75 mm stroke, and the short body fits under low packaging-machine frames.
Male rod thread takes an I knuckle for swing clamps holding aluminium housings during machining, with FA flange mounting to the jig plate.
About 32 kg of vertical-lift equivalent nudges bottles between lanes at 30-500 mm/s, with DMSE switches when the -S magnet is ordered.
The 75 mm stroke is well inside the 200 mm standard limit for this bore. This B version has a male rod thread; the plain code gives female M8x1.25. No magnet is fitted - order the -S code if you need CMSE or DMSE switch positions. Remember a plain cylinder drifts when air is lost; add a rod lock or pilot check valve for held loads. For new builds, specify ACE40X75 instead.
Replacement checklist
Push is 628.3 N and pull 571.8 N at 0.5 MPa; at 0.7 MPa push rises to 879.6 N and pull to 800.5 N. Theoretical maximum is 128.1 kgf at 1.0 MPa. Derate to about 377 N (roughly 32 kg vertical lift) for real work. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, port 1/8" PT, rod 12 mm male thread.
The compact aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flanges, LB feet or CA/CB clevises bolt straight to the standard face. The fixed TPU bumper only softens end-of-stroke contact - it never holds a load, so use a rod lock or pilot check valve where position must be kept. This model is discontinued; ACE40X75 is the current replacement, so verify ISO 21287 dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X75B replacement — usually within 7-8 hours.