Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-50S
The AirTAC Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-50S 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 ACEJ40X80-50S
The ACEJ40X80-50S is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. Air drives the piston both ways, and an external stop screw trims the 80 mm stroke by up to 50 mm on site, giving a usable range of 30-80 mm. At 0.5 MPa this 40 mm bore delivers 628.3 N push and 571.8 N pull, rising to 879.6 N at 0.7 MPa. The hard-anodized aluminium body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into tight guarding and fixture frames.
This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the body slots for end-of-travel signalling. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the 12 mm hard-chrome-plated S45C rod runs in a roller-burnished, hard-anodized bore for long seal life. As a rule of thumb, plan on roughly 377 N (about 38 kg) of real work at 0.5 MPa rather than the full 628.3 N rating.
Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-50S Technical Specifications
| Model | Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-50S |
|---|---|
| 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 ACEJ40X80-50S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -50 | 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 ACEJ40X80-50S Is Used
Fixture clamping on CNC machining centres
The 628.3 N push at 0.5 MPa clamps aluminium or steel workpieces in milling fixtures, while the 30-80 mm adjustable range lets one cylinder serve several fixture heights without re-plumbing.
Packaging line pusher stations
At 30-500 mm/s the rod ejects cartons or trays from a conveyor lane, and the fitted -S magnet with a DMSE switch confirms retract before the next cycle starts.
Lab sample press and dispensing rigs
The short ISO 21287 body fits inside compact bench-top enclosures, and the stop screw sets an exact 30-80 mm extend stroke for repeatable sample compression.
Is the Airtac ACEJ32~40 Adjustable Cushion Compact Cylinder ACEJ40X80-50S the Right Cylinder?
Size the load first: 628.3 N push at 0.5 MPa suits clamping and pressing in the 35-40 kg class; step down to the 32 mm bore (402.1 N) for lighter jigs or up to the 50 mm bore (981.7 N) for heavier fixtures. Remember the stop screw only shortens the extend stroke within the 50 mm window and is not a mid-stroke lock - on air loss the piston still drifts, so add a separate holding valve where a load must stay put. FA flange and LB foot mountings bolt to the ISO 21287 face, and the fitted -S magnet pairs with CMSE / DMSE switches. Operating window is 0.15-1.0 MPa (22-145 psi) with speeds of 30-500 mm/s.
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 ACEJ40X80-50S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa those figures rise to 879.6 N and 800.5 N, with a theoretical maximum of 128.1 kgf at 1.0 MPa. The -50 code means an external stop screw can shorten the 80 mm extend stroke by up to 50 mm, giving a working range of 30-80 mm. The cylinder is double acting, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), and moves at 30-500 mm/s.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange or LB foot brackets bolt directly to its standard face. This model includes the optional -S magnet, so CMSE or DMSE reed or solid-state switches mount in the body slots for end-of-stroke detection. Each end carries a fixed TPU bumper that absorbs impact only - it never holds or brakes a load.
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Standard models are processed and dispatched in 3-5 business days.
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