Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X45-20
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X45-20 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø32mm bore and 45mm 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
- Stroke45 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 ACEJ32X45-20
The ACEJ32X45-20 is a double acting ISO 21287 compact cylinder with a 32 mm bore and a 45 mm stroke that an external stop screw can trim on site by up to 20 mm, giving a usable extend range of 25-45 mm. At 0.5 MPa it pushes 402.1 N and pulls 345.6 N, rising to 563 N at 0.7 MPa, 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, so it slots into tight jigs and guarding where a full-length body will not fit.
For sizing the load, treat roughly 60% of the push force as usable work, so about 241 N at 0.5 MPa; halving the 41 kgf vertical-lift equivalent gives a comfortable 2:1 margin, meaning it lifts about 20 kg vertically. The hard-anodized aluminium body carries a hard-chrome plated S45C rod, a fixed TPU bumper decelerates the rod at each end, and the optional -S magnet enables CMSE / DMSE switches. Ports are 1/8" and the female rod thread is M8x1.25.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X45-20 Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X45-20 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø32 mm |
| Stroke | 45 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 ACEJ32X45-20
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| -20 | 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 ACEJ32X45-20 Is Used
Fixture clamping on CNC pallets
The 25-45 mm adjustable extend range lets a machinist dial in exact clamp travel on pallet fixtures, with 402.1 N of push at 0.5 MPa holding steel parts firmly.
Press-fit of small bearings
About 241 N of usable force at 0.5 MPa suits light press work such as seating small bushings or bearings in housings, and the 20 mm window absorbs part tolerance.
Packaging line reject pushers
Mounted on a bottling or carton line, the compact body fits beside narrow conveyor frames and the stop screw trims pusher travel to match lane width.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ32X45-20 the Right Cylinder?
If 402.1 N of push at 0.5 MPa is more than your jig needs, the ACEJ25 delivers 245.4 N at the same pressure; if you need more, step up to the ACEJ40 for 628.3 N. Remember the stop screw only shortens the extend stroke and is not a mid-stroke lock, so the rod can drift if air is lost. Choose FA flange or LB foot mounting to suit the fixture, add the -S code if CMSE / DMSE position sensing is planned, and pick the B suffix for a male rod thread instead of the standard M8x1.25 female thread.
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 ACEJ32X45-20 FAQ
At 0.5 MPa it pushes 402.1 N and pulls 345.6 N; at 0.7 MPa push is 563 N and pull 483.8 N; theoretical maximum is 82 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, 1/8" ports and a female M8x1.25 rod thread. The -20 code means the 45 mm extend stroke can be shortened by up to 20 mm, so usable range is 25-45 mm.
It is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange, LB foot and rod-knuckle accessories bolting to the standard face. A fixed TPU bumper at each end absorbs end-of-stroke energy. Sensing requires the optional -S magnet code; without it no magnet is fitted, so CMSE / DMSE switches only work when -S is ordered.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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