Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 45mm 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
- Stroke45 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 ACEJ12X45-10SB
The ACEJ12X45-10SB is a double acting ISO 21287 compact cylinder with a 12 mm bore and a 45 mm stroke that an external stop screw trims on site by up to 10 mm, giving a usable extend range of 35-45 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N push at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. The male rod thread (B code) suits external tooling, and the fitted -S magnet accepts CMSE / DMSE switches for end-position sensing.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures and guarded cells. A rule of thumb: plan on roughly 34 N (about 60% of the push rating) for real work, which lifts about 2.9 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries a hard-chrome S45C rod, a fixed TPU bumper sits at both ends, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 45 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 ACEJ12X45-10SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×45 | 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 ACEJ12X45-10SB Is Used
Small-parts ejection with position feedback
On a packaging line, the fitted magnet lets CMSE or DMSE switches confirm the 35-45 mm extend range, while the stop screw dials the eject distance to match shallow trays.
Micro-assembly press fit
The 56.5 N push at 0.5 MPa (about 34 N usable) seats connectors and small bearings in electronics fixtures, and the male rod thread takes a custom press tip directly.
Compact lift-and-lower gate
With about 2.9 kg vertical lift capacity at a 2:1 margin, the short body raises lightweight covers or chutes inside a machine frame where a full-length cylinder will not fit.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10SB the Right Cylinder?
Size down only if your load is under about 40 N: the smallest ACEJ bore 12 delivers 56.5 N push at 0.5 MPa, so there is no smaller step inside this series. If you need more, the bore 16 unit gives 100.5 N push at the same pressure. The 45 mm stroke sits inside the 50 mm max standard stroke for bore 12, so no made-to-order build is needed. The 10 mm window suits jobs where the final stop must be dialed in after installation - remember the stop screw only shortens the extend stroke and does not hold a load if air is lost. This model already carries the -S magnet and the B male rod thread; PT ports are standard, and FA flange or LB foot mounts bolt to the ISO 21287 face.
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 ACEJ12X45-10SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa, 79.2 N push and 59.4 N pull; theoretical maximum is 11.5 kgf at 1.0 MPa. Bore is 12 mm, stroke 45 mm adjustable within a 10 mm window (35-45 mm usable), rod 6 mm with male thread, port M5x0.8, speed 30-500 mm/s, pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), temperature -20 to +70 C, air filtered to 40 um.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange, LB foot and I/Y knuckle accessories fitting the standard face. A fixed TPU bumper at each end absorbs end-of-stroke energy. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clipped into the body slots to signal end positions.
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