Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10SB 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 ACEJ12X35-10SB
The ACEJ12X35-10SB is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. A 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa (79.2 N / 59.4 N at 0.7 MPa), which suits light clamping and positioning in tight fixtures. The -10 code adds a 10 mm adjustment window: an external stop screw trims the 35 mm stroke down to 25 mm on site, so one cylinder covers several stroke settings without re-ordering.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, ideal for slim slides and guarded assemblies. A hard-anodized aluminium body carries an S45C hard-chrome plated 6 mm rod with a male thread (B code), and the S code fits the magnet so CMSE / DMSE switches can report end positions. Plan on roughly 34 N (about 3.5 kg) of real work at 0.5 MPa rather than the full 56.5 N rating, and expect about 2.9 kg of vertical lift with a 2:1 margin. TPU bumpers at both ends absorb end-of-stroke shock, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10SB |
|---|---|
| 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 ACEJ12X35-10SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×35 | 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 ACEJ12X35-10SB Is Used
Micro part ejection
Ejects small plastic caps or pins from an injection mold nest, with the 25-35 mm adjustable range tuned per mold and the fitted magnet confirming the eject position via a CMSE switch.
Light clamping fixture
Clamps thin sheet-metal brackets on a CNC jig where 56.5 N at 0.5 MPa is enough grip and the short ISO 21287 body fits inside the fixture guard.
Small parts sorting gate
Kicks lightweight components on a conveyor lane; the -S magnet drives a DMSE switch to verify each gate stroke at up to 500 mm/s.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10SB the Right Cylinder?
At this bore size the ACEJ12X35-10SB sits at the light end of the range: a 16 mm bore gives 100.5 N push at 0.5 MPa if you need nearly double the force, while stepping down is not possible since 12 mm is the smallest ACEJ bore. Size the job so the load stays near 34 N at 0.5 MPa for a comfortable margin. The 25-35 mm adjustable extend range covers variable part sizes; note the stop screw is an end stop only, so the rod can still drift if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and the fitted -S magnet pairs with CMSE / DMSE switches. The 6 mm male rod thread takes I or Y knuckles directly.
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 ACEJ12X35-10SB FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa it pushes 79.2 N and pulls 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The ordered stroke is 35 mm and the -10 stop screw trims the extend stroke anywhere in a 25-35 mm window. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed 30-500 mm/s.
It is an ISO 21287 compact cylinder whose body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, with a hard-anodized aluminium barrel, threaded aluminium covers, a hard-chrome plated 6 mm rod with male thread, and fixed TPU bumpers at both ends. Position sensing needs the optional -S magnet, which this model carries: CMSE or DMSE reed or solid-state switches then mount in the body slots. FA flange and LB foot mounts, plus I and Y rod knuckles, bolt to the standard ISO 21287 face.
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