Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-40S
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-40S 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 ACEJ40X80-40S
A double acting ISO 21287 compact cylinder, the ACEJ40X80-40S pairs a 40 mm bore with an 80 mm stroke that an external stop screw trims by up to 40 mm on site, giving a usable extend range of 40-80 mm. At 0.5 MPa it pushes 628.3 N and pulls 571.8 N, and the short 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 real work, plan on roughly 377 N of usable push at 0.5 MPa (about 60% of the rating), which is the vertical-lift equivalent of about 32 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, a fixed TPU bumper sits at each end, and because this model carries the optional -S magnet, CMSE / DMSE switches can be mounted directly in the body slots.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-40S Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-40S |
|---|---|
| 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 ACEJ40X80-40S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 ACEJ40X80-40S Is Used
Fixture clamping on CNC machining centers
The 628.3 N push at 0.5 MPa clamps aluminum or small steel workpieces in dedicated jigs, and the 40 mm window lets one cylinder model serve several fixture depths by trimming the extend stroke at the stop screw.
Reject pusher on packaging lines
Mounted beside a conveyor, the compact body fits where an ISO 15552 profile cylinder would overhang, kicking off-cartons or trays within a 40-80 mm extend range at up to 500 mm/s.
Position-verified gate latch on assembly cells
With the -S magnet fitted, CMSE or DMSE switches confirm the trimmed end position of a safety gate or pallet stop, while the 571.8 N pull at 0.5 MPa retracts the latch reliably.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-40S the Right Cylinder?
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); step down for lighter clamping, up if your load needs more than about 377 N of working force. The 40 mm window means you order the longest stroke you may ever need and trim it down on the machine - the stop screw shortens the extend stroke only, it never lengthens it past 80 mm. Remember the adjuster is a mechanical end stop, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve where load retention matters. FA flange and LB foot mountings bolt to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report end positions without extra brackets.
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 ACEJ40X80-40S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa push rises to 879.6 N and pull to 800.5 N, with a theoretical maximum of 128.1 kgf at 1.0 MPa. The 80 mm stroke is adjustable down by up to 40 mm (usable range 40-80 mm) via the external stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the air supply should be filtered to 40 um.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, threaded aluminium covers, a 12 mm hard-chrome plated S45C rod and a fixed TPU bumper at each end that only decelerates at stroke ends - it never locks or holds a load. The body saves about 50% of the mounting length of an ISO 15552 profile cylinder. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount in the body slots; FA flange and LB foot mountings bolt straight to the standard face.
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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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Most inquiries answered within 7-8 hours.
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