
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X175-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø40mm bore and 175mm 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.
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ40X175-30 pairs a 40 mm bore with a 175 mm stroke and a 30 mm trim window. At 0.5 MPa it pushes 628.3 N and pulls 571.8 N, and the external stop screw shortens the extend stroke anywhere in the 145-175 mm range so one cylinder can be tuned to several fixture positions on site. The hard-anodized aluminium body with an S45C hard-chrome plated rod runs at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight guarding and gantry frames. Plan on roughly 377 N (about 38 kg of force) of usable work at 0.5 MPa rather than the full rating, and note it lifts about 32 kg vertically with a 2:1 margin. Fixed TPU bumpers absorb end-of-stroke energy at both ends, and the optional -S magnet enables CMSE / DMSE switches.
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X175-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 175 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 | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -30 | 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 628.3 N push at 0.5 MPa clamps steel brackets in milling fixtures, and the 30 mm window lets one cylinder serve jigs of slightly different heights.
With a 145-175 mm adjustable extend stroke and 30-500 mm/s speed, it kicks off-spec cartons from a conveyor lane without changing cylinders.
Lifting about 32 kg vertically with a 2:1 margin, it raises and lowers interlock gates on palletizing cells where mounting space is short.
At 628.3 N push at 0.5 MPa this 40 mm bore sits between the 32 mm bore (402.1 N) and the 50 mm bore (981.7 N), so size up if your tooling mass demands more margin. The 175 mm stroke is within the 200 mm maximum standard stroke for this bore. Remember the stop screw only trims the extend stroke mechanically - it is not a mid-stroke lock, so the rod will drift if air is lost. Bolt FA flange or LB foot mounts to the ISO 21287 face, and if you need position sensing order the -S variant, since without it no magnet is fitted.
Quick checklist
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa push is 879.6 N and pull 800.5 N; theoretical maximum is 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, port 1/8" PT, rod thread M8x1.25 female, and the extend stroke is adjustable from 145-175 mm via the stop screw.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow machine frames, and FA flange or LB foot mounts bolt straight to the standard face. A fixed TPU bumper at each end absorbs end-of-stroke energy. Sensing requires the optional -S magnet code - this model has no magnet, so CMSE / DMSE switches can only be used if you order the -S variant.
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