
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X35-20B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 35mm 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.
The ACEJ80X35-20B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. The male rod thread (B code) on the 20 mm rod bolts straight to tooling, and the 1/8" port feeds the high flow this bore needs at 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into press fixtures and gantries where a full-length body will not fit. The external stop screw trims the 35 mm extend stroke anywhere within the ordered 20 mm window, giving a usable range of 15-35 mm on site. Fixed TPU bumpers at both ends absorb end-of-stroke shock, and the hard-anodized aluminium body with S45C hard-chrome rod stands up to continuous production duty.
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X35-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 35 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.
| 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).
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×35 | 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.
Male rod thread and FA flange mounting clamp heavy machined castings on a machining centre pallet, with the short body fitting inside the fixture guard envelope.
Remember the stop screw is a mechanical end stop for the extend stroke only - it does not hold a load if air is lost. Order the -S code if you need the optional magnet for CMSE / DMSE switches; this model has no magnet fitted. FA flange or LB foot mounts and I/Y rod knuckles bolt to the standard ISO 21287 face.
Quick checklist
Push is 2513.3 N and pull 2356.2 N at 0.5 MPa; at 0.7 MPa push reaches 3518.6 N and pull 3298.7 N, with a theoretical maximum of 512.6 kgf at 1.0 MPa. It is double acting with an extend stroke adjustable from 15-35 mm via the 20 mm stop-screw window, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a 1/8" PT port and male rod thread.
An external stop screw shortens the 35 mm extend stroke by up to 20 mm, so the working range is 15-35 mm; it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. Sensors need the optional -S magnet code - this model has no magnet, so order ACEJ80X35-20SB if you want CMSE / DMSE switch positions. The fixed TPU bumpers at both ends only soften the stroke ends.
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