Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X70-40
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X70-40 is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 70mm 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
- Stroke70 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 ACEJ80X70-40
A double acting ISO 21287 compact cylinder, the ACEJ80X70-40 pairs an 80 mm bore with a 70 mm stroke that an external stop screw trims on site by up to 40 mm, giving a usable extend range of 30-70 mm. At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa those rise to 3518.6 N and 3298.7 N, with a theoretical 512.6 kgf at 1.0 MPa. In practice, plan on roughly 1508 N (about 154 kg) of real work at 0.5 MPa rather than the full rating.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this 80 mm bore fits presses and gantries where a full-length body will not. The hard-anodized aluminium body carries an S45C hard-chrome rod, a fixed TPU bumper sits at both ends, and the rod ends in a female M12x1.75 thread with a 1/8" PT port. Note that the stop screw is a mechanical end stop only: on air loss the piston still drifts, so it is not a load-holding lock.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X70-40 Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X70-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 70 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 ACEJ80X70-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 ACEJ80X70-40 Is Used
Pallet clamp on a conveyor
Clamps shrink-wrapped pallets at a transfer point; about 154 kg of usable force at 0.5 MPa holds loads square without over-clamping.
Gate drive in a foundry guard
The short body, roughly 50% shorter than an ISO 15552 profile cylinder, slides a heavy sand-mould gate inside a tight machine guard.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X70-40 the Right Cylinder?
If the load must stay put on air loss, add an external locking valve rather than relying on the stop screw. FA flange or LB foot mounting bolts to the ISO 21287 face, and ordering the -S code adds the optional magnet so CMSE / DMSE switches can track position; without -S there is no magnet fitted.
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 ACEJ80X70-40 FAQ
The -40 code is a 40 mm adjustment window: an external stop screw shortens the 70 mm extend stroke to any setting from 30 to 70 mm. It is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, S45C hard-chrome plated 20 mm rod, threaded aluminium covers and a fixed TPU bumper at each end; the body is about 50% shorter than an ISO 15552 profile cylinder. The rod end is female M12x1.75 and the port is 1/8" PT. Position sensing requires the optional -S magnet ordered with the cylinder; only then can CMSE or DMSE switches be mounted on the body slots. FA flange and LB foot mountings bolt straight to the ISO 21287 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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