
The AirTAC Airtac ACE Compact Cylinder ACE32X40S is a genuine double acting ISO 21287 compact air cylinder with a Ø32mm bore and 40mm stroke, 1/8" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
This AirTAC ACE32X40S is a double acting compact cylinder built to ISO 21287, with a 32 mm bore and a 40 mm stroke. Its hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine frames where a full-length unit will not. The fixed TPU bumper at each end absorbs impact, and the S45C hard-chrome rod resists wear in continuous cycling.
At 0.5 MPa this unit pushes with 402.1 N and pulls with 345.6 N, so a practical safe working load is about 24 kg (roughly 0.6 times the push force) for real applications. The optional -S magnet is already fitted here, enabling CMSE or DMSE reed and solid-state switches for position sensing. The 1/8" port and M8x1.25 female rod thread match standard ISO 21287 accessories.
| Model | Airtac ACE Compact Cylinder ACE32X40S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 40 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 TPU bumper (both ends) |
| Max standard stroke | Up to 200 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Clamp small parts in a CNC fixture with 402.1 N push at 0.5 MPa, fitting into tight spaces where a longer cylinder would interfere with tool paths.
Act as a stop pin on a light conveyor line, extending to block a product and retracting to let it pass, with the fixed TPU bumper handling the impact.
Operate a safety guard interlock on a packaging machine, using the short body to fit inside the guard frame and the optional -S magnet to confirm the door position.
For lighter work, an ACE25X40 with a 25 mm bore delivers 245.4 N push at 0.5 MPa, while stepping up to an ACE40X40 gives 628.3 N push for heavier loads. This 32 mm bore is a balanced middle ground for jigs and fixtures that need moderate force in a short envelope. Since the magnet is fitted, pair it with a CMSE or DMSE switch for reliable end-of-stroke detection. Mounting options include FA/FB flanges, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all bolting directly to the ISO 21287 face. Remember, this cylinder does not hold its position if air pressure is lost; use a rod lock or pilot check valve for load holding.
Quick checklist
At 0.5 MPa, the push force is 402.1 N and the pull force is 345.6 N. At 0.7 MPa, the push force is 563.0 N and the pull force is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi), and the speed range is 30-500 mm/s.
Yes, the ACE32X40S is an ISO 21287 compact cylinder, with a body about 50% shorter than an ISO 15552 profile cylinder, making it ideal for tight spaces. It comes with the optional -S magnet fitted, which allows you to mount CMSE or DMSE reed or solid-state switches for position sensing. The fixed TPU bumper absorbs end-of-stroke energy, but it does not lock or hold a load.
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