Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-40
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-40 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 ACEJ80X125-40
A double acting ISO 21287 compact cylinder, the ACEJ80X125-40 pairs an 80 mm bore with a 125 mm stroke and a 40 mm adjustable window: an external stop screw trims the extend stroke anywhere between 85 and 125 mm on site. At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N, rising to 3518.6 N at 0.7 MPa, so it sits in the heavy-thrust class for clamping, pressing and lifting fixtures.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters when a 125 mm stroke must fit inside a press frame or machine guard. The hard-anodized aluminium body carries a 20 mm S45C hard-chrome rod, fixed TPU bumpers absorb end-of-stroke shock, and FA flange or LB foot mounts bolt straight to the ISO 21287 face.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-40 Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-40 |
|---|---|
| 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 ACEJ80X125-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 (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 ACEJ80X125-40 Is Used
Fixture clamping on a machining centre
Clamps aluminium housings in a 4-station fixture with roughly 1500 N of usable force at 0.5 MPa; FA flange mounting drops it straight onto standard ISO 21287 fixture plates.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X125-40 the Right Cylinder?
At this bore size compare both neighbours: the ACEJ63X125-40 pushes 1558.6 N at 0.5 MPa for lighter tooling, while the ACEJ100X125-40 reaches 3927.0 N when the load grows. If you need position feedback, order the -S variant so CMSE / DMSE switches can ride the body slots - without -S there is no magnet and no sensing. Remember the stop screw sets the extend end position only; on air loss the rod still drifts, so add a separate lock for load holding. Ports are 1/8" PT, rod end is female M12x1.75, and the 300 mm max standard stroke for bore 80 leaves headroom if the layout changes.
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 ACEJ80X125-40 FAQ
Push is 2513.3 N and pull 2356.2 N at 0.5 MPa; at 0.7 MPa push rises to 3518.6 N, and theoretical maximum is 512.6 kgf at 1.0 MPa. It is double acting with an adjustable extend stroke: the -40 stop screw trims the 125 mm stroke down to 85 mm. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, air filtered to 40 um, port 1/8" PT, rod end female M12x1.75.
The ISO 21287 compact body is hard-anodized aluminium with a 20 mm hard-chrome-plated S45C rod and fixed TPU bumpers at both ends that absorb end-of-stroke energy; they do not lock or hold a load. Mounting is via FA flange, LB foot or FTC brackets plus I/Y rod knuckles on the ISO 21287 face. Position sensing needs the optional -S magnet code - only then can CMSE / DMSE switches be fitted; the standard unit has no magnet.
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