
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X80-40S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø32mm bore and 80mm 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 ACEJ32X80-40S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 80 mm stroke down by up to 40 mm, giving a usable range of 40-80 mm without changing the cylinder. At 0.5 MPa it pushes 402.1 N and pulls 345.6 N, and the fitted -S magnet lets CMSE / DMSE switches report position along the magnet slots in the body.
The hard-anodized aluminium body with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. Plan on roughly 240 N (about 24 kgf) of real work at 0.5 MPa, which corresponds to lifting about 12 kg vertically with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke energy, and speed spans 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X80-40S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 80 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. |
| ×80 | Stroke length in mm. |
| -40 | 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 40-80 mm adjustable stroke lets one cylinder serve different pallet heights, with 402.1 N push holding parts firmly during milling or drilling.
Trim the extend stroke on site to match carton sizes on a conveyor, while the fitted magnet and a CMSE switch confirm the stop is deployed.
About 240 N of usable force at 0.5 MPa suits light press-in work on electronics housings and small bearing assemblies, with the compact body fitting inside the press frame.
At 402.1 N push at 0.5 MPa this 32 mm bore sits between the 25 mm bore (245.4 N) and the 40 mm bore (628.3 N); step up to 40 mm if your load needs more than about 240 N of working force. Remember the stop screw is an end stop only - it sets the extend stroke but does not hold a load if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and the female M8x1.25 rod thread takes standard rod knuckles (I or Y).
Quick checklist
It pushes 402.1 N and pulls 345.6 N at 0.5 MPa, and 563 N / 483.8 N at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 80 mm extend stroke by up to 40 mm, so the working range is 40-80 mm. It cannot lengthen the stroke beyond 80 mm, and the stop is not a load-holding brake - the piston drifts if air is lost.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends. This model carries the optional -S magnet, so CMSE or DMSE reed / solid-state switches can be clamped directly into the body slots. Mounting options include FA flange and LB foot, with a 1/8" PT port.
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