Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X45-20B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X45-20B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 45mm 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
- Stroke45 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 ACEJ80X45-20B
A double acting ISO 21287 compact cylinder, the ACEJ80X45-20B pairs an 80 mm bore with a 45 mm stroke and a 20 mm adjustment window. At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N, rising to 3518.6 N on the extend stroke at 0.7 MPa. The male rod thread from the B code bolts straight to your tooling, and the 1/8" port keeps air supply generous for this force class.
The short 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. An external stop screw trims the extend stroke anywhere in the 25-45 mm range without touching the machine program. FA flange, LB foot and I/Y rod knuckles bolt to the standard ISO 21287 face.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X45-20B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X45-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 45 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 ACEJ80X45-20B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 ACEJ80X45-20B Is Used
Weld fixture clamping
Male rod thread (B code) takes a custom clamp arm directly; the short ISO 21287 body fits inside tight weld cell guards where an ISO 15552 profile cylinder is too long.
Machine tool part eject
Ejects machined housings off a fixture with 2356.2 N of pull force at 0.5 MPa; the fixed TPU bumper at both ends softens the stop at 30-500 mm/s.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X45-20B the Right Cylinder?
If your clamp or press needs between 1500 and 2500 N, the 80 mm bore is the efficient middle ground. The 20 mm window suits fixtures where the exact stop position is tuned on commissioning. Order the -S code if you later want CMSE / DMSE switches - this model has no magnet fitted, so no sensor can be read without it. PT ports as standard, G thread on request.
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 ACEJ80X45-20B 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; theoretical maximum is 512.6 kgf at 1.0 MPa. The -20 code means an external stop screw shortens the 45 mm extend stroke by up to 20 mm, giving a usable range of 25-45 mm. It is a mechanical end stop, not a mid-stroke lock - on air loss the piston still drifts. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
The hard-anodized aluminium body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, with a fixed TPU bumper at each end absorbing end-of-stroke energy. This model has no magnet; order the -S version to enable CMSE / DMSE reed or solid-state switches in the body slots. FA flange, LB foot, FTC brackets and I/Y rod knuckles bolt to the standard ISO 21287 mounting face, and the rod end is male thread (B code) with a 20 mm rod and 1/8" PT ports.
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