Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-20B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-20B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 125mm 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
- Stroke125 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 ACEJ80X125-20B
The male rod thread (B code) on the 20 mm hard-chrome S45C rod bolts straight to standard tooling plates, and the 1/8" port keeps flow up for the 30-500 mm/s speed band.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses, clamping gantries and machine guards where a full-length body will not fit. An external stop screw trims the extend stroke anywhere in the 105-125 mm range on site. A fixed TPU bumper at each end absorbs end-of-stroke shock.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-20B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 125 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 ACEJ80X125-20B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 ACEJ80X125-20B Is Used
Gantry clamp on a CNC line
Mounted by FA flange inside a tight machine guard, the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder while clamping fixtures at up to 154 kg equivalent force.
Pallet gate actuator in a warehouse
The male rod thread drives a swing gate or stopper arm at 30-500 mm/s, and the 1/8" port keeps cycle times fast on high-throughput conveyor diverters.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-20B the Right Cylinder?
Size for about 154 kg of usable push at 0.5 MPa. Note the stop screw is a mechanical end stop only - on air loss the piston drifts, so add a separate valve or lock if position must hold. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the ISO 21287 face. This unit has no magnet; order the -S code if you need CMSE / DMSE switch sensing.
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 ACEJ80X125-20B FAQ
At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa push is 3518.6 N and pull 3298.7 N, with a theoretical maximum of 512.6 kgf at 1.0 MPa. The base stroke is 125 mm and the -20 stop screw trims the extend stroke by up to 20 mm, giving a usable range of 105-125 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is 1/8" PT with a male rod thread.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, threaded aluminium covers and a 20 mm hard-chrome S45C rod, with a fixed TPU bumper at each end to absorb end-of-stroke shock. Magnet sensing is not fitted on this model; the optional -S magnet code enables CMSE / DMSE reed or solid-state switches. Mounting options include FA flange, LB foot, FTC brackets and I/Y rod knuckles.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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