Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X70-40
The AirTAC Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X70-40 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø100mm 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.
- BoreØ100 mm
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting, 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 ACEJ100X70-40
The ACEJ100X70-40 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 70 mm stroke down by up to 40 mm, giving a usable range of 30-70 mm without changing the order code. At the 100 mm bore it delivers 3927 N push and 3769.9 N pull at 0.5 MPa, rising to 5497.8 N push at 0.7 MPa, so it covers heavy clamping and press-fit work in a body that saves about 50% of the mounting length of an ISO 15552 profile cylinder.
In practice, plan for roughly 2350 N of real work at 0.5 MPa (about 60% of the rated push), which corresponds to lifting around 240 kg vertically - halve that to about 120 kg for a 2:1 margin on a vertical lift. The hard-anodized aluminium body carries a S45C hard-chrome-plated 20 mm rod, fixed TPU bumpers absorb end-of-stroke energy at both ends, and the optional -S magnet enables CMSE / DMSE switch mounting; without -S no magnet is fitted. Speed range is 30-500 mm/s.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X70-40 Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X70-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø100 mm |
| Stroke | 70 mm |
| Acting type | Double acting, 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3770 N |
| 0.7 MPa | 5498 N | 5278 N |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X70-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 100 | 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 (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 ACEJ100X70-40 Is Used
Heavy press-fit and staking stations
The 3927 N push at 0.5 MPa (5497.8 N at 0.7 MPa) drives bearings or bushings into housings on automotive assembly lines, with the 40 mm window letting you dial the 70 mm stroke down to 30 mm for shallow press depths.
Weld fixture clamping in tight cells
The short ISO 21287 body fits inside robot weld guns and fixture risers where a full-length profile cylinder will not, holding car-body panels with roughly 240 kgf of clamp force at 0.5 MPa.
Pallet lift-and-lower modules
With about 120 kg vertical lift at a 2:1 margin, the cylinder raises palletized cartons or machined parts between conveyor levels, and the 1/8" port keeps air supply adequate at 30-500 mm/s cycle speeds.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X70-40 the Right Cylinder?
At 3927 N push at 0.5 MPa this 100 mm bore suits fixtures needing roughly 240 kgf of thrust; if your load is under about 2450 N, the 80 mm bore (2513.3 N push at 0.5 MPa) saves space, and if you need more, the 125 mm bore reaches 6135.9 N. Remember the stop screw only shortens the extend stroke within the 40 mm window - it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. Mount with FA flange or LB foot on the ISO 21287 face, add I or Y rod knuckles as needed, and order the -S code if CMSE / DMSE position switches are planned.
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 ACEJ100X70-40 FAQ
At 0.5 MPa it pushes 3927 N and pulls 3769.9 N; at 0.7 MPa it pushes 5497.8 N and pulls 5277.9 N, with a theoretical maximum of 800.9 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw on the cylinder shortens the 70 mm extend stroke by up to 40 mm, so the working range is 30-70 mm. It is a mechanical end stop for the extend stroke only - it does not lengthen the stroke and it will not hold a load if air pressure is lost. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed is 30-500 mm/s.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, threaded aluminium covers, a 20 mm S45C hard-chrome-plated rod with female M12x1.75 thread, and fixed TPU bumpers at both ends to absorb end-of-stroke impact. The body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, and FA flange or LB foot mounts plus I/Y rod knuckles bolt to the standard ISO 21287 face. Position sensing requires the optional -S magnet code - this model (no S) has no magnet, so no CMSE or DMSE switch can be mounted unless you order the -S version. Air supply must be filtered to 40 um; ports are 1/8" PT.
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