Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10
The AirTAC ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 40mm stroke, M5×0.8 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.
- BoreØ12 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM3×0.5
- 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 ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ12X40-10 pairs a 12 mm bore with a 40 mm stroke and a 10 mm trim window. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N and 59.4 N at 0.7 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures, small guarding and bench-top rigs where a full-length body simply will not fit.
Practically, plan for roughly 34 N of usable work at 0.5 MPa (about 60% of the push rating), which is around 3 kg of vertical lift with a sensible margin. The hard-anodized aluminium body carries a 6 mm S45C hard-chrome rod with an M3x0.5 female thread, and a fixed TPU bumper at each end absorbs end-of-stroke shock. Speed runs 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 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 (Ø12mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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 ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -10 | 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 ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 Is Used
Micro part ejection
Ejects finished watch or connector pins from a small press die, where the 34 N usable push and the 30-40 mm trimmed stroke clear the nest without disturbing the part.
Lab sample indexing
Advances sample trays one station on a compact analytical bench unit, fitting the tight deck height that rules out a full-length profile cylinder.
Blister pack reject gate
Kicks rejected blister cavities off a narrow pharma packaging lane at 30-500 mm/s, with the M5x0.8 port keeping the manifold footprint tiny.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 the Right Cylinder?
Remember the -10 stop screw only shortens the extend stroke within 30-40 mm and drifts on air loss, so it is not a load-holding device. Mounting: FA flange or LB foot plus I/Y rod knuckles bolt to the ISO 21287 face. If you need position feedback, order the -S variant so CMSE / DMSE switches can be fitted; this non-S 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 ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 FAQ
Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push is 79.2 N and pull 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The 12 mm bore runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, port M5x0.8, rod thread M3x0.5 female. The -10 code gives a 10 mm window to trim the 40 mm extend stroke down to 30 mm.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and a fixed TPU bumper at each end absorbs end-of-stroke shock. FA flange, LB foot and I/Y rod knuckles bolt straight to the standard face. Position sensing requires the optional -S magnet code; with -S ordered, CMSE / DMSE switches can be mounted in the body slots, but this base model carries no magnet.
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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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