Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 80mm 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
- Stroke80 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 ACEJ80X80-20B
The ACEJ80X80-20B is a double acting, adjustable-stroke compact cylinder built to ISO 21287. The B code gives a male rod thread on the 20 mm rod, and the 1/8" port matches this bore class. The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses and gantries where a full-length body will not fit.
The -20 code adds a 20 mm adjustment window: an external stop screw trims the 80 mm extend stroke on site to any setting from 60 to 80 mm, so one cylinder serves several fixture positions. Fixed TPU bumpers absorb end-of-stroke energy, speed runs 30-500 mm/s, and the optional -S magnet enables CMSE / DMSE switches if position sensing is needed later.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 80 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 ACEJ80X80-20B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 ACEJ80X80-20B Is Used
Injection mold ejector assist
The male-threaded 20 mm rod drives an ejector plate on a plastics tool, trimming the 80 mm stroke down to 60 mm where the mold face limits travel.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20B the Right Cylinder?
Size against the load: the 80 mm bore pushes 2513.3 N at 0.5 MPa; if your load needs under 1558.6 N, the 63 mm bore costs less, and if you need over 3927 N step up to the 100 mm bore. Remember the stop screw only shortens the extend stroke - it is not a mid-stroke lock, so the rod still drifts if air is lost. Choose FA flange or LB foot mounting to suit the fixture, order the -S code if CMSE / DMSE sensing is planned, and confirm any stroke beyond the 300 mm standard limit from datasheet.
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 ACEJ80X80-20B 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 -20 code gives a 20 mm adjustment window: an external stop screw shortens the 80 mm extend stroke to any value from 60 to 80 mm. It is an end stop only - it never holds a load if air pressure is lost.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with fixed TPU bumpers at both ends and a hard-anodized aluminium body on a hard-chrome S45C rod. FA flange and LB foot mountings bolt to the standard face. Position sensing requires the optional -S magnet, which allows CMSE / DMSE switches; without -S there is no magnet fitted.
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