Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-30
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke80 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 ACEJ40X80-30
The ACEJ40X80-30 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 80 mm stroke by up to 30 mm on site, giving a usable range of 50-80 mm without changing the cylinder. At the 40 mm bore it delivers 628.3 N push and 571.8 N pull at 0.5 MPa, rising to 879.6 N push at 0.7 MPa, so it covers mid-duty clamping and pressing work in a body that saves about 50% of the mounting length of an ISO 15552 profile cylinder.
For sizing the job, plan on roughly 377 N of real work at 0.5 MPa (about 0.6 of the push figure), which is a vertical lift of about 32 kg at full push force or roughly 16 kg with a 2:1 margin. The hard-anodized aluminium body carries a hard-chrome plated S45C rod with a female M8x1.25 thread, fixed TPU bumpers absorb end-of-stroke energy at both ends, and magnet slots accept CMSE / DMSE switches when the optional -S magnet is ordered - this model has no magnet fitted.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-30 Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 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.
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 ACEJ40X80-30
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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.
Where the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-30 Is Used
Fixture clamping on CNC machining centers
Clamps aluminum housings in a 3-jaw fixture where the 628.3 N push at 0.5 MPa holds the part and the 50-80 mm adjustable range fits varying fixture depths without reordering cylinders.
Small press-fit station for bearing assembly
Presses bearings into pump housings on an automated line; the 879.6 N push at 0.7 MPa handles the insertion force while the short ISO 21287 body slots under a low gantry frame.
Product stopper on a packaging conveyor
Extends to stop cartons at a checkweigher; the stop screw trims the extend stroke to clear passing product, and the fixed TPU bumper quiets each end-of-stroke contact at 30-500 mm/s speeds.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-30 the Right Cylinder?
Compare by force: the 32 mm bore pushes 402.1 N at 0.5 MPa while this 40 mm bore gives 628.3 N, and the next step up, the 50 mm bore, reaches 981.7 N - so pick the 40 mm when your load sits between those bands. The 80 mm stroke is well inside the 200 mm maximum standard stroke for this bore, and the -30 window lets you dial the extend stroke anywhere from 50 to 80 mm to match fixture depth. Remember the stop screw is a mechanical end stop, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve for suspended loads. FA flange or LB foot mounts bolt to the ISO 21287 face, and order the -S code if CMSE / DMSE position sensing is needed.
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 ACEJ40X80-30 FAQ
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa it pushes 879.6 N and pulls 800.5 N; theoretical maximum is 128.1 kgf at 1.0 MPa. The 40 mm bore uses a 12 mm rod with a female M8x1.25 thread and 1/8" ports, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, operates from -20 to +70 C at 30-500 mm/s, and the -30 code gives a 30 mm adjustment window on the 80 mm extend stroke (usable 50-80 mm).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits tight jigs, guards and gantries. Position sensing is possible only with the optional -S magnet code, which enables CMSE / DMSE reed or solid-state switches in the body slots; this model, ordered without -S, has no magnet and no sensor can be mounted. FA flange and LB foot mounts bolt straight to the standard ISO 21287 face.
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