Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X20-10SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X20-10SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 20mm 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
- Stroke20 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 ACEJ12X20-10SB
A double acting compact actuator built to ISO 21287, the ACEJ12X20-10SB pairs a 12 mm bore with a 20 mm stroke that an external stop screw trims anywhere in a 10 mm window, giving a usable extend range of 10-20 mm on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N / 59.4 N at 0.7 MPa. The hard-anodized aluminium body and S45C hard-chrome plated rod keep wear low in high-cycle small-part tooling.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixture plates and guard rails. For sizing, treat roughly 34 N (about 0.6 of the push force) as the practical working output at 0.5 MPa, which is roughly a 3.4 kg push load; in vertical lift terms the rod can raise about 2.9 kg with a 2:1 margin. The fitted -S magnet lets CMSE / DMSE switches report end positions, and fixed TPU bumpers absorb the end-of-stroke shock at both ends.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X20-10SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X20-10SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 20 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 ACEJ12X20-10SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×20 | 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 ACEJ12X20-10SB Is Used
Micro part ejection
Ejects stamped terminals or plastic sprue off a small die, with the 10-20 mm trimmed stroke matching shallow part pockets and the 56.5 N push clearing parts under 3 kg.
Vision check station
Presents tiny electronic components to a camera; the fitted -S magnet drives CMSE / DMSE switches so the PLC confirms the trimmed extend position before imaging.
Connector snap-fit press
Presses ribbon cable connectors home in telecom assembly, where the male M3x0.5 rod thread and about 34 N practical working force at 0.5 MPa suit delicate snap fits.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X20-10SB the Right Cylinder?
At 56.5 N push (0.5 MPa) this 12 mm bore suits light clamping and sorting of small parts up to about 3.4 kg. If your load needs more, the 16 mm bore delivers 100.5 N push at 0.5 MPa; for lighter, tighter spaces the 12 mm is already the smallest in the range. The B code gives a male M3x0.5 rod thread for direct attachment to small tooling. Mount with FA flange or LB foot brackets, and note the stop screw is an extend-stroke end stop only - it does not hold position if air is lost. Speed range is 30-500 mm/s.
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 ACEJ12X20-10SB 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. The -10 code is a 10 mm adjustment window: an external stop screw shortens the 20 mm extend stroke by up to 10 mm, so the working range is 10-20 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
It is an ISO 21287 compact actuator whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end absorbing end-of-stroke energy. The -S magnet is fitted on this model, so CMSE / DMSE reed or solid-state switches can be clamped in the body slots. FA flange and LB foot brackets bolt to the standard ISO 21287 face; the port is M5x0.8 and the rod thread is male M3x0.5.
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