Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-30B
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-30B 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.
- BoreØ12 mm
- Stroke30 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 ACEJ12X30-30B
A double acting compact actuator built to ISO 21287, the ACEJ12X30-30B pairs a 12 mm bore with a 30 mm stroke that an external stop screw can trim anywhere from 0 to 30 mm on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N at 0.7 MPa, with a theoretical ceiling of 11.5 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome plated rod keep wear low across a 30-500 mm/s speed band.
The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures, small guarding frames and bench-top rigs. A fixed TPU bumper at each end absorbs end-of-stroke shock. Plan on roughly 34 N (about 3.4 kg) of real working force at 0.5 MPa, which equates to lifting around 1.7 kg vertically with a 2:1 margin. Note that this version has no magnet fitted; the optional -S code is what enables CMSE / DMSE switch sensing.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-30B Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-30B |
|---|---|
| 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.
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 ACEJ12X30-30B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -30 | 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 ACEJ12X30-30B Is Used
Micro stop-gauging on a PCB test rig
The 0-30 mm trim lets a technician dial the exact press depth for connector seating tests, with 56.5 N at 0.5 MPa enough for light contact force.
Small-part ejection from a molding tray
A 30 mm kick clears tiny molded caps off a fixture plate; the compact body fits where a full-length profile cylinder cannot.
Sample presenter in a lab autosampler
The male rod thread screws straight into a custom sample holder, and the short ISO 21287 body keeps the station footprint tight.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X30-30B the Right Cylinder?
For light clamping or positioning under about 34 N of working force at 0.5 MPa, this 12 mm bore is the right size; step up to the 16 mm bore (100.5 N push) if you need nearly double the force, or drop to a direct-acting mini actuator only if 56.5 N is still too much. The male rod thread (B code) suits couplings and knuckles that screw on, and the rod end takes an M3x0.5 female thread in the standard version. FA flange or LB foot mountings bolt to the ISO 21287 face. Remember the stop screw only shortens the extend stroke; it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost.
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 ACEJ12X30-30B FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa that rises to 79.2 N push and 59.4 N pull, with a theoretical maximum of 11.5 kgf at 1.0 MPa. It is double acting, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, with a 6 mm rod, M5x0.8 port and a 30 mm adjustable extend-stroke window.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange or LB foot mountings bolt straight to its face. Sensing requires the optional -S magnet code; this model (no S) has no magnet, so CMSE / DMSE switches cannot be fitted unless you order the -S variant. A fixed TPU bumper at each end softens end-of-stroke impact.
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