Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 35mm 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
- Stroke35 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 ACEJ12X35-30
This compact ISO 21287 cylinder is double acting and carries an adjustable extend stroke: the -30 code gives a 30 mm stop-screw window, so the 35 mm stroke can be trimmed on site anywhere from 5 to 35 mm. At the 12 mm bore it delivers 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N push at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures a full-length body cannot reach.
For real-world sizing, plan on roughly 34 N of usable push at 0.5 MPa (about 0.6 of the rating), which corresponds to lifting about 2 kg vertically with a 2:1 margin. The hard-anodized aluminium body pairs with an S45C hard-chrome rod, a fixed TPU bumper at each end absorbs end-of-stroke shock, and the rod ends in a female M3x0.5 thread. Note that this unit has no magnet fitted; the optional -S code is what enables CMSE / DMSE switch sensing.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 35 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 ACEJ12X35-30
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×35 | 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 ACEJ12X35-30 Is Used
Micro part clamping
Holds small electronics or watch components in a light-duty jig where the 30 mm trim window lets you dial the clamp point between 5 and 35 mm.
Compact ejection station
Pushes tiny stamped parts off a fixture with 56.5 N at 0.5 MPa; add the -S magnet code if CMSE or DMSE position switches are wanted.
Lab slide actuation
Moves a small tray or shutter 5-35 mm inside a benchtop tester, using the short ISO 21287 body to fit behind a narrow panel.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-30 the Right Cylinder?
At 56.5 N push at 0.5 MPa this 12 mm bore suits light clamping and positioning; step up to the 16 mm bore (100.5 N push) if the load feels marginal, or drop to the smallest option only for very light indexing. The stop screw shortens the extend stroke only - it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. FA flange or LB foot mounts and I/Y rod knuckles bolt to the ISO 21287 face; order the -S code if CMSE / DMSE switches will be needed later.
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 ACEJ12X35-30 FAQ
Push 56.5 N and pull 42.4 N at 0.5 MPa; push 79.2 N and pull 59.4 N at 0.7 MPa; theoretical maximum 11.5 kgf at 1.0 MPa. It is double acting with a 30 mm adjustment window on the 35 mm extend stroke (usable 5-35 mm), runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, port M5x0.8, female M3x0.5 rod thread, PT ports.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits tight guards and gantries. Sensing is not included by default: order the optional -S magnet code to enable CMSE / DMSE reed or solid-state switches on the body slots. Mounting is via FA flange or LB foot plus I/Y rod knuckles, and a fixed TPU bumper at each end absorbs end-of-stroke impact.
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