
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X25-10S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø32mm bore and 25mm 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.
The ACEJ32X25-10S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 25 mm stroke by up to 10 mm, giving a usable range of 15-25 mm without changing the order code. At 0.5 MPa the 32 mm bore delivers 402.1 N push and 345.6 N pull, rising to 563 N push at 0.7 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit.
Because the -S magnet is fitted on this model, CMSE or DMSE reed and solid-state switches mount directly in the body slots for end-of-stroke signalling. Plan on roughly 240 N of real work at 0.5 MPa (about 60% of the push rating), which is a vertical lift of around 12 kg - halve that to 6 kg for a 2:1 margin on lifting tasks. A fixed TPU bumper at each end absorbs end-of-stroke energy, the hard-anodized aluminium body runs on an S45C hard-chrome rod, and speed spans 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X25-10S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 25 mm |
| Acting type | Double acting, adjustable stroke |
| 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.
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| 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.
The 402.1 N push at 0.5 MPa clamps aluminium brackets or plastic housings in machining fixtures, and the 15-25 mm adjustable window lets you dial the clamp point to the part without re-fixturing.
A 25 mm stroke trimmed down to 15 mm pushes cartons or blisters off a conveyor lane; the compact body fits under low guard rails where an ISO 15552 profile cylinder would overhang.
With the fitted -S magnet driving CMSE or DMSE switches, PLCs confirm each 15-25 mm eject or press move on PCB test benches, catching a stuck actuator before the next board loads.
Size this bore when your load sits between the 25 bore (245.4 N push at 0.5 MPa) and the 40 bore (628.3 N push at 0.5 MPa); the 32 mm bore's 402.1 N covers mid-range clamping and positioning with margin. The stop screw is a mechanical end stop for the extend stroke only - it does not hold a load mid-stroke, so on air loss the piston can still drift. FA flange or LB foot mounts bolt to the ISO 21287 face, and the female M8x1.25 rod thread accepts standard rod knuckles such as I or Y. If you need position sensing elsewhere in the range, order a variant with the -S magnet code; this model already carries it.
Quick checklist
At 0.5 MPa it pushes 402.1 N and pulls 345.6 N; at 0.7 MPa push rises to 563 N (pull 483.8 N), with a theoretical maximum of 82 kgf at 1.0 MPa. The -10 code is a 10 mm adjustment window: an external stop screw shortens the 25 mm extend stroke on site, so the working range is 15-25 mm. It shortens the stroke only - it never extends it past 25 mm, and it is an end stop, not a mid-stroke lock.
This is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at both ends and FA flange or LB foot mounting on the standard face. The -S magnet is fitted on this model, so CMSE or DMSE reed or solid-state switches mount in the body slots for end-of-stroke detection; variants ordered without the -S code carry no magnet.
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