Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10S
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø12mm bore and 45mm 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
- Stroke45 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 ACEJ12X45-10S
A double acting ISO 21287 compact cylinder with an adjustable extend stroke, the ACEJ12X45-10S pairs a 12 mm bore with a 45 mm stroke that an external stop screw trims by up to 10 mm on site, giving a usable extend range of 35-45 mm. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, rising to 79.2 N at 0.7 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding where a full-length body cannot. This S-coded unit carries the optional -S magnet, so CMSE / DMSE switches can be clipped onto the body for end-of-stroke sensing.
For sizing, plan on roughly 34 N of real work at 0.5 MPa rather than the full 56.5 N rating, which is about a 2.9 kg vertical lift with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke energy, the hard-anodized aluminium body runs on a 6 mm S45C hard-chrome rod, and the female M3x0.5 rod thread plus FA/LB mounting options drop straight into standard ISO 21287 fixtures. Speed range is 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10S Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 45 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 ACEJ12X45-10S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 12 | Bore size in mm. |
| ×45 | 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 ACEJ12X45-10S Is Used
Micro jig clamping
Holds small brackets or PCB fixtures on an electronics assembly bench, where the 35-45 mm adjustable extend range lets one cylinder serve several jig depths without swapping parts.
Sorted part ejection
Kicks undersized components off a small conveyor lane; the fitted -S magnet works with CMSE switches to confirm each eject stroke back to the PLC.
Lab slide actuation
Advances a sample tray or shutter in compact test equipment, where the short ISO 21287 body fits inside a tight enclosure and 56.5 N at 0.5 MPa is ample for light slides.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ12X45-10S the Right Cylinder?
At 56.5 N push and 42.4 N pull at 0.5 MPa, this 12 mm bore suits light clamping and small-part positioning. Step down is not available in this series, so if the load exceeds about 34 N of usable force, move up to the 16 mm bore (100.5 N push at 0.5 MPa). The 45 mm stroke sits inside the 50 mm maximum standard stroke for this bore. The stop screw shortens the extend stroke only - it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts on air loss. Match FA flange or LB foot mounts to the fixture, and note the magnet is the -S option this model already carries for CMSE / DMSE switch mounting.
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 ACEJ12X45-10S FAQ
Bore 12 mm, stroke 45 mm with a 10 mm adjustment window (usable extend range 35-45 mm). Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push is 79.2 N and pull 59.4 N. Theoretical maximum is 11.5 kgf at 1.0 MPa. Port is M5x0.8, rod thread is female M3x0.5, and the maximum standard stroke for this bore is 50 mm.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium barrel, S45C hard-chrome rod and fixed TPU bumpers at both ends. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount directly in the body slots. FA flange and LB foot mounts bolt to the standard face, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
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