Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-20
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-20 is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 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 ACEJ80X120-20
The ACEJ80X120-20 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 120 mm stroke by up to 20 mm on site, giving a usable range of 100-120 mm without changing the cylinder. A practical rule of thumb: keep the working demand near 60% of the push force, roughly 1500 N, so the unit runs with margin rather than at its ceiling.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters in heavy gantries, press fixtures and machine guards where every millimetre of envelope counts. The hard-anodized aluminium body carries a 20 mm S45C hard-chrome rod with a female M12x1.25-class thread per the code (M12x1.75 female), and 1/8" ports. Note that this code has no -S option, so no magnet is fitted and CMSE / DMSE switches cannot be used unless you order the -S variant.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-20 Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-20 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 120 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 ACEJ80X120-20
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 ACEJ80X120-20 Is Used
Pallet gate and stopper actuation
Conveyor stopper gates for loads around 120 kg per lift use the pull stroke of 2356.2 N, with the stop screw trimming travel to match gate geometry exactly.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X120-20 the Right Cylinder?
Size both ways before committing: the 63 mm bore pushes 1558.6 N at 0.5 MPa, while the 100 mm bore reaches 3927.0 N, so the 80 mm sits squarely in the 2.5 kN class. If your load needs position holding during a power loss, remember the stop screw only shortens the extend stroke mechanically - it never locks the piston, so add a separate holding valve. FA flange and LB foot mountings plus I and Y rod knuckles bolt to the standard ISO 21287 face, and if end-position sensing is needed later, specify the -S magnet code at order time.
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 ACEJ80X120-20 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, with a theoretical maximum of 512.6 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: an external stop screw shortens the 120 mm extend stroke to any value from 100 to 120 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the 1/8" ports take PT thread as standard.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange or LB foot mountings plus I/Y rod knuckles bolt straight to its standard face. A fixed TPU bumper at each end absorbs end-of-stroke impact. Sensing requires the optional -S magnet code: this model has no magnet fitted, so CMSE or DMSE switches only work if you order the -S variant. For exact outline dimensions, confirm from datasheet.
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