Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 25mm 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.
- BoreØ80 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM12×1.75
- 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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S
A double acting ISO 21287 compact cylinder, the ACEJ80X25-20S pairs an 80 mm bore with a short 25 mm stroke and a 20 mm adjustment window: an external stop screw trims the extend stroke anywhere in the 5-25 mm range without changing hardware. At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N, rising to 3518.6 N at 0.7 MPa, with a theoretical peak of 512.6 kgf at 1.0 MPa. The hard-anodized aluminium body carries magnet slots along its full length, and this model is ordered with the -S magnet fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signalling.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters on press fixtures and gantries where every millimetre of envelope counts. A fixed TPU bumper at each end absorbs end-of-stroke energy, the S45C rod is hard-chrome plated, and the 1/8" ports run on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M12×1.75 |
| 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 300 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 (Ø80mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 2356 N |
| 0.7 MPa | 3299 N |
| Max (@1.0 MPa) | 481 kgf |
ACEJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×25 | 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 (double rod, 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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S Is Used
Vision-inspected part ejection on a CNC line
The fitted -S magnet drives CMSE switches at both ends, confirming ejection of machined pump bodies from the fixture before the vision camera triggers on the next cycle.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S the Right Cylinder?
For a 25 mm working stroke with on-site trimming, the -20 window gives 5-25 mm of usable extend travel; note the stop screw is a mechanical end stop only, so the piston will still drift if air is lost - add a separate valve or lock for load holding. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the ISO 21287 face, and the female M12x1.75 rod thread suits standard rod-coupled tooling. If you need position feedback, this unit already carries the -S magnet for 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 ACEJ80~100 Adjustable Compact Cylinder ACEJ80X25-20S FAQ
At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa it pushes 3518.6 N and pulls 3298.7 N; the theoretical maximum is 512.6 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: an external stop screw shortens the 25 mm extend stroke to any value from 5 to 25 mm. It is a mechanical end stop, not a mid-stroke lock, so the rod can still drift on air loss. Speed range is 30-500 mm/s and operating pressure is 0.15-1.0 MPa (22-145 psi).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into guarded cells and fixture plates where a longer cylinder cannot. A fixed TPU bumper at each end absorbs end-of-stroke impact. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount directly in the body slots. FA flange, LB foot and FTC brackets plus I and Y rod knuckles bolt straight to the ISO 21287 mounting face, and the rod ends in a female M12x1.75 thread with a 1/8" air port.
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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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