Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø32mm bore and 120mm 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.
- BoreØ32 mm
- Stroke120 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB
A double acting ISO 21287 compact cylinder, the ACEJ32X120-75SB pairs a 32 mm bore with a 120 mm stroke and a 75 mm adjustment window. An external stop screw trims the extend stroke on site anywhere from 45 to 120 mm, so one unit serves several jig positions without re-plumbing. At 0.5 MPa it pushes 402.1 N and pulls 345.6 N; at 0.7 MPa those rise to 563 N and 483.8 N, with a theoretical ceiling of 82 kgf at 1.0 MPa.
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. In practice that 402.1 N push supports roughly 241 N of real work at 0.5 MPa, and it will lift about 20 kg vertically once you keep a 2:1 margin. The -S magnet is fitted on this model, so CMSE or DMSE reed and solid-state switches can be clipped straight onto the body slots. A male (B) rod thread and PT ports round out the spec.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 120 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -75 | 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.
Where the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB Is Used
Jig clamping with variable part sizes
Trim the extend stroke between 45 and 120 mm to clamp short and tall workpieces on the same machining fixture without swapping cylinders.
Packaging line pusher stations
The 402.1 N push at 0.5 MPa slides cartons or trays off a conveyor, and the fitted magnet feeds a CMSE switch to confirm each push completed.
Small part press-fit and staking
563 N at 0.7 MPa is enough for light press-fit, staking and marking operations on electronics or small brackets, with the male rod thread simplifying tool attachment.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB the Right Cylinder?
At 32 mm bore this sits mid-range: a 25 mm bore gives 245.4 N push at 0.5 MPa if your load is lighter, while a 40 mm bore delivers 628.3 N when you need more muscle. Size for about 60% of rated force so the cylinder is not running flat out. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock, so the rod can still drift if air is lost. FA flange or LB foot mountings bolt to the ISO 21287 face, and the fitted -S magnet means CMSE / DMSE switches work out of the box.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X120-75SB FAQ
At 0.5 MPa it pushes 402.1 N and pulls 345.6 N; at 0.7 MPa it pushes 563 N and pulls 483.8 N; theoretical maximum is 82 kgf at 1.0 MPa. The -75 code is a 75 mm adjustment window: an external stop screw shortens the 120 mm extend stroke by up to 75 mm, giving a usable range of 45-120 mm. It is a mechanical end stop only, so it never holds a load against air loss. Speed range is 30-500 mm/s and operating pressure is 0.15-1.0 MPa (22-145 psi).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow guards and tight gantries. A fixed TPU bumper at each end absorbs end-of-stroke energy. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be mounted in the body slots for end-position detection. FA flange and LB foot mountings, plus I and Y rod knuckles, bolt straight to the standard face.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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