
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10 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.
The ACEJ12X35-10 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. A stop screw on the body trims the 35 mm stroke by up to 10 mm on site, giving a usable range of 25-35 mm without changing the cylinder. At 0.5 MPa the 12 mm bore delivers 56.5 N push and 42.4 N pull, rising to 79.2 N push at 0.7 MPa. As a rule of thumb, plan for about 34 N of real work at 0.5 MPa, which lifts roughly 2.9 kg vertically with a 2:1 margin.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures, small guarding and bench-top tooling. A hard-anodized aluminium body runs on an S45C hard-chrome plated rod, with a fixed TPU bumper at each end to absorb end-of-stroke impact. Air ports are M5x0.8 and the rod end carries a female M3x0.5 thread. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi).
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X35-10 |
|---|---|
| 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.
| 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. |
| ×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.
The 56.5 N push at 0.5 MPa is enough to seat small PCB connectors and terminals, while the 10 mm adjustment window lets you dial the press depth between 25 and 35 mm.
Short 25-35 mm strokes and a body about 50% shorter than an ISO 15552 profile cylinder fit the tight space under a narrow inspection conveyor to push off failed parts.
With about 2.9 kg of vertical lift at a 2:1 margin, the cylinder raises small sample trays or probes in bench-top test rigs, driven from an M5x0.8 port.
At 56.5 N push (0.5 MPa) this bore suits light clamping, ejecting and part-presenting tasks. If your load needs more, the 16 mm bore gives 100.5 N push at 0.5 MPa; if less force is fine, the smaller frame sizes still share the same compact footprint. Remember the stop screw is a mechanical end stop only - on air loss the piston drifts, so it is not a load-holding lock. Mount with FA flange or LB foot brackets, and if you need position sensing, order the -S variant so CMSE / DMSE switches can be fitted; this model has no magnet.
Quick checklist
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa push is 79.2 N and pull 59.4 N; theoretical maximum is 11.5 kgf at 1.0 MPa. The extend stroke is adjustable from 25 to 35 mm via the external stop screw (10 mm window). Operating pressure is 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, fluid air filtered to 40 um. Port is M5x0.8, rod thread female M3x0.5.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and a fixed TPU bumper at each end absorbs end-of-stroke impact. FA flange and LB foot brackets bolt to the standard face. Position sensing requires the optional -S magnet with CMSE / DMSE switches - this model, ordered without the S code, carries no magnet, so no sensor can be mounted on it.
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