Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X55-40B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ100X55-40B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø100mm bore and 55mm 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
- Stroke55 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 ACEJ100X55-40B
A double acting ISO 21287 compact cylinder, the ACEJ100X55-40B pairs a 100 mm bore with a 55 mm stroke that an external stop screw trims by up to 40 mm on site, giving a usable extend range of 15-55 mm. At 0.5 MPa it pushes 3927 N and pulls 3769.9 N, enough for heavy clamping and press-fit work in a body that saves about 50% of the mounting length of an ISO 15552 profile cylinder.
The hard-anodized aluminium body carries a 20 mm S45C hard-chrome rod with a male thread (B code), and fixed TPU bumpers absorb end-of-stroke shock at both ends. Run it on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X55-40B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X55-40B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø100 mm |
| Stroke | 55 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 (Ø100mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 3770 N |
| 0.7 MPa | 5278 N |
| Max (@1.0 MPa) | 769 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 ACEJ100X55-40B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 ACEJ100X55-40B Is Used
Heavy fixture clamping on machining centres
Clamps large cast-iron workpieces on CNC milling fixtures; the short ISO 21287 body fits inside machine guards where a full-length profile cylinder cannot.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ100X55-40B the Right Cylinder?
The 55 mm stroke sits well inside the 300 mm max standard stroke for this bore, so no made-to-order length is needed. FA flange or LB foot mountings bolt to the ISO 21287 face; the adjuster is a mechanical end stop only, so on air loss the piston drifts and it should not be relied on to hold a load. Order the -S code if you later need CMSE / DMSE switch sensing; this model has 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 ACEJ100X55-40B FAQ
At 0.5 MPa it pushes 3927 N and pulls 3769.9 N; at 0.7 MPa push rises to 5497.8 N and pull to 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 shortens the 55 mm extend stroke by up to 40 mm, so the usable range is 15-55 mm. It cannot lengthen the stroke past 55 mm, and the stop is not a mid-stroke lock - on air loss the piston still drifts.
The ISO 21287 compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it suits tight gantries and guards. It has a hard-anodized aluminium body, a 20 mm hard-chrome rod with male thread, a 1/8" PT port, fixed TPU bumpers at both ends, and FA/LB mounting options. Position sensing requires the optional -S magnet code, which enables CMSE / DMSE switches; without -S no magnet is fitted and no sensor can be mounted.
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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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