Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X40-10 is a genuine double acting, 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, adjustable stroke
- Rod threadM3×0.5
- CushionFixed TPU bumper (both ends)
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, 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
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 (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?
At this bore size the 56.5 N push at 0.5 MPa suits light clamping, ejecting and sorting of small parts; if your load needs more, the 16 mm bore delivers 100.5 N at the same pressure, while the 20 mm bore reaches 157.1 N. 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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