Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X50-10S
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X50-10S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 50mm 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
- Stroke50 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 ACEJ12X50-10S
The ACEJ12X50-10S is a double acting AirTAC compact cylinder built to ISO 21287, with a 12 mm bore and a 50 mm stroke that an external stop screw trims by up to 10 mm, giving a usable extend range of 40-50 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N push at 0.7 MPa. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into tight fixtures, guards and small gantries where a full-length body will not fit.
The -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped anywhere along the body slots for end-of-stroke sensing. A practical sizing note: keep real work to roughly 34 N (about 0.6 of the push force), which corresponds to lifting about 2.9 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries a hard-chrome S45C rod, a female M3x0.5 rod thread, an M5x0.8 port and fixed TPU bumpers at both ends.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X50-10S Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X50-10S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 50 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 ACEJ12X50-10S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×50 | 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 ACEJ12X50-10S Is Used
Small jig clamping
Trims its extend stroke between 40 and 50 mm to clamp PCB test fixtures or small brackets, with about 34 N of usable work force at 0.5 MPa.
Position confirmation in compact modules
The fitted -S magnet drives CMSE / DMSE switches along the body slots, confirming eject or present positions inside slim automation units.
Light part ejection
Ejects small stamped or moulded parts from a nest with 56.5 N push at 0.5 MPa, sized to lift about 2.9 kg vertically with margin.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X50-10S the Right Cylinder?
For a 40-50 mm adjustable extend stroke at light loads, this 12 mm bore delivers 56.5 N push at 0.5 MPa. Step down is not possible in this series, so if the job needs more force choose the 16 mm bore (100.5 N push at 0.5 MPa) or the 20 mm bore (157.1 N). Remember the stop screw only shortens the extend stroke and is not a mid-stroke lock: on air loss the piston still drifts, so do not rely on it to hold a load. FA flange or LB foot mounting bolts to the ISO 21287 face, and the fitted -S magnet works with CMSE / DMSE switches. PT ports, female M3x0.5 rod thread.
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 ACEJ12X50-10S FAQ
This 12 mm bore double acting cylinder gives 56.5 N push and 42.4 N pull at 0.5 MPa, and 79.2 N push / 59.4 N pull at 0.7 MPa, with a theoretical maximum of 11.5 kgf at 1.0 MPa. 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, on air filtered to 40 um. The stop screw shortens the 50 mm extend stroke by up to 10 mm.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow fixtures. Fixed TPU bumpers absorb end-of-stroke energy at both ends. FA flange and LB foot mounts bolt to the standard face, and because this model carries the optional -S magnet, CMSE / DMSE switches can be fitted for position feedback. The rod ends in a female M3x0.5 thread with an M5x0.8 air port.
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