Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø40mm 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.
- BoreØ40 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 ACEJ40X45-40
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ40X45-40 pairs a 40 mm bore with a 45 mm stroke and a 40 mm adjustment window. At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa push rises to 879.6 N. The external stop screw trims the extend stroke anywhere in the 5-45 mm range, so one cylinder can serve several station widths on the same fixture. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight guarding and slide tables.
Plan on roughly 377 N of usable work force at 0.5 MPa (about 60% of the push rating), which corresponds to lifting about 32 kg vertically, or around 16 kg with a 2:1 margin. The hard-anodized aluminium body carries a 12 mm S45C hard-chrome rod with a female M8x1.25 thread, and 1/8" ports feed air filtered to 40 um at 0.15-1.0 MPa (22-145 psi). A fixed TPU bumper sits at both ends, speed runs 30-500 mm/s, and the optional -S magnet enables CMSE / DMSE switches; this model has no magnet fitted.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40 Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 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 (Ø40mm)
| 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.
Model Code: Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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.
Where the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40 Is Used
Fixture clamping on CNC pallets
The 5-45 mm adjustable extend range lets one cylinder clamp pallets of slightly different heights, with about 377 N of practical clamp force at 0.5 MPa.
Packaging line pusher stations
A 45 mm stroke with on-site trimming suits box divert and reject gates running at 30-500 mm/s, and the short body fits under low conveyor frames.
Small parts press-fit station
879.6 N push at 0.7 MPa is enough for light bushing or dowel pressing, and the FA flange bolts straight to standard ISO 21287 fixture plates.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X45-40 the Right Cylinder?
At 628.3 N push (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 step down when the load is light and up when it is not. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so do not rely on it to hold a load. FA flange and LB foot mountings bolt to the ISO 21287 face, and if you need position sensing, order the -S magnet code with CMSE / DMSE switches.
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 ACEJ40X45-40 FAQ
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 at 1.0 MPa is 128.1 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, speed 30-500 mm/s, and the extend stroke is adjustable from 5 to 45 mm via the stop screw within the 40 mm window.
An external stop screw shortens the 45 mm extend stroke by up to 40 mm, giving a usable 5-45 mm range; it is a mechanical end stop, not a load-holding brake. The body is a hard-anodized ISO 21287 compact design about 50% shorter in mounting length than an ISO 15552 profile cylinder, with a fixed TPU bumper at both ends. This model has no magnet; order the -S code to enable CMSE / DMSE switches.
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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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