
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-10SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 30mm 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.
The ACEJ12X30-10SB is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 30 mm stroke by up to 10 mm, giving a usable range of 20-30 mm on site. At 0.5 MPa this 12 mm bore delivers 56.5 N push and 42.4 N pull, rising to 79.2 N push at 0.7 MPa. The male rod thread (B code) suits inline 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 hard-anodized aluminium body carries an S45C hard-chrome rod, with a fixed TPU bumper at each end. In practice, plan on roughly 34 N (about 3.5 kgf) of real work at 0.5 MPa, and expect it to lift about 2.9 kg vertically with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-10SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 30 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.
| 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.
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×30 | 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.
The 20-30 mm adjustable stroke and 56.5 N push at 0.5 MPa eject finished caps or connectors from shallow cavities, with the stop screw set to match cavity depth exactly.
The fitted -S magnet drives CMSE / DMSE switches to confirm the rod has reached the trimmed position, while the compact body fits inside slim test fixtures.
About 34 N of practical force at 0.5 MPa presses dowel pins into small aluminium housings, with the male rod thread coupling directly to the press tip.
At 56.5 N push at 0.5 MPa, this 12 mm bore suits light clamping and positioning. Step down is not available in this series, so if the load is under about 34 N of working force, keep bore 12 and trim the stroke with the stop screw; if you need more, the 16 mm bore gives 100.5 N push at 0.5 MPa. Note the stop screw is a mechanical end stop only - on air loss the piston still drifts, so do not use it to hold a load mid-stroke. FA flange or LB foot mounts bolt to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report end positions.
Quick checklist
At 0.5 MPa: 56.5 N push and 42.4 N pull. 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 30 mm extend stroke by up to 10 mm, so the working range is 20-30 mm. It cannot lengthen the stroke past 30 mm.
It is an ISO 21287 compact cylinder whose short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod and a fixed TPU bumper at both ends. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clamped to the body for end-position signals. FA flange and LB foot mounts fit the standard ISO 21287 face.
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