
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20SB 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.
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ80X80-20SB pairs an 80 mm bore with an 80 mm stroke and a 20 mm trim window: an external stop screw shortens the extend stroke anywhere between 60 and 80 mm, so one unit serves several fixture positions. At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N, rising to 3518.6 N on extension at 0.7 MPa, with a theoretical ceiling of 512.6 kgf at 1.0 MPa.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses, weld fixtures and gantries where a full-length body cannot. The hard-anodized aluminium body carries a hard-chromed S45C 20 mm rod, fixed TPU bumpers absorb end-of-stroke energy at both ends, and because this model carries the -S magnet, CMSE or DMSE reed and solid-state switches can be fitted for end-position sensing. The B code gives a male rod thread; ports are 1/8".
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X80-20SB |
|---|---|
| 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.
| 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. |
| ×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.
The compact body fits inside weld-cell tooling where an ISO 15552 profile cylinder is too long, and the -S magnet plus CMSE switch confirms clamp-seated position for the PLC.
Pulling 2356.2 N at 0.5 MPa gives enough force to swing heavy conveyor gates and diverters in a distribution centre, with the 20 mm window trimming the swing to match the gate.
Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so add a separate holding valve where a load must stay put. FA flange, LB foot and FTC brackets plus I and Y rod knuckles bolt to the ISO 21287 face, and the male rod thread (B) suits clevis-style tooling.
Quick checklist
At 0.5 MPa it pushes 2513.3 N and pulls 2356.2 N; at 0.7 MPa those figures rise to 3518.6 N and 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 trims the 80 mm extend stroke down to as little as 60 mm, so the usable range is 60-80 mm. It shortens the stroke only and never extends it past the ordered length.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which frees space in guarded machines and tight jigs. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be mounted in the body slots for position feedback. FA flange, LB foot and FTC brackets plus I and Y rod knuckles attach to the standard ISO 21287 face, and the male rod thread (B code) accepts threaded tooling directly.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.