Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X40-40B
The AirTAC ACEJ80~100 Adjustable Compact Cylinder ACEJ80X40-40B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 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 ACEJ80X40-40B
The ACEJ80X40-40B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 40 mm stroke anywhere within the ordered -40 window, so one cylinder covers a 0-40 mm working range without changing parts. At 0.5 MPa the 80 mm bore 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 (B code) on the 20 mm S45C hard-chrome rod bolts straight to your tooling.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters when a heavy press or clamp has to sit inside a guarded machine frame. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the hard-anodized aluminium body with roller-burnished bore stands up to continuous 30-500 mm/s cycling.
Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X40-40B Technical Specifications
| Model | Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X40-40B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø80 mm |
| Stroke | 40 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 ACEJ80X40-40B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 ACEJ80X40-40B Is Used
Pneumatic press station
The 3518.6 N extend force at 0.7 MPa suits a bench-top crimping or staking press on aluminium housings, with the 40 mm window letting you dial in the exact die-close position.
Weld fixture clamping
Clamps sheet-metal weld fixtures where the short body must tuck under a gantry beam; the male rod thread takes a formed clamp arm directly.
Pallet push-off unit
Pushes loaded pallets off a conveyor stop with about 1508 N of usable force at 0.5 MPa, trimmed to the exact lane width with the stop screw.
Is the Airtac ACEJ80~100 Adjustable Compact Cylinder ACEJ80X40-40B the Right Cylinder?
Remember the stop screw only shortens the extend stroke and is not a mid-stroke lock: on air loss the piston still drifts, so use a separate locking solution where a load must be held. Mount with FA flange or LB foot brackets on the ISO 21287 face, and if you need position feedback, order the -S variant so CMSE / DMSE switches can be fitted - this model has no magnet.
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 ACEJ80X40-40B FAQ
Push is 2513.3 N and pull 2356.2 N at 0.5 MPa; at 0.7 MPa push rises to 3518.6 N, with a theoretical maximum of 512.6 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 40 mm extend stroke on site, giving a usable 0-40 mm range. It is a mechanical end stop only - it never holds a load if air is lost. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, air filtered to 40 um.
The ISO 21287 compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits tight machine frames. FA flange and LB foot brackets bolt to the standard face, and the male rod thread accepts I or Y knuckles. Switches need the optional -S magnet: this model (no S code) has no magnet, so order ACEJ80X40-40SB if you want CMSE or DMSE switches. Both ends carry a fixed TPU bumper for end-of-stroke deceleration.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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