Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X25-10
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X25-10 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm bore and 25mm 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.
- BoreØ16 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X25-10
A double acting compact cylinder built to ISO 21287, the ACEJ16X25-10 pairs a 16 mm bore with a 25 mm stroke and an external stop screw that trims the extend stroke by up to 10 mm on site, giving a usable range of 15-25 mm. At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa those figures rise to 140.7 N and 105.6 N, with a theoretical peak of 20.5 kgf at 1.0 MPa. As a rule of thumb, plan for about 60 N (roughly 6 kg) of real work at 0.5 MPa rather than the full rating.
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 panels and bench-top rigs. A hard-anodized aluminium body carries an S45C hard-chrome plated 8 mm rod with a female M4x0.7 thread, and fixed TPU bumpers at both ends absorb end-of-stroke shock. Air supply is 0.15-1.0 MPa (22-145 psi), speed runs 30-500 mm/s, and the port is M5x0.8.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X25-10 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X25-10 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 25 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 75 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 75 N |
| 0.7 MPa | 141 N | 106 N |
| Max (@1.0 MPa) | 21 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 ACEJ16X25-10
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×25 | 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 ACEJ16X25-10 Is Used
Micro part clamping
Holds small electronics or watch components in a light-duty jig, with the 10 mm window letting you dial the 25 mm stroke down to a repeatable 15-20 mm clamp.
Compact ejector on assembly benches
Pushes finished caps or springs off a fixture into a chute; with the -S magnet ordered, a CMSE switch flags each completed stroke.
Lab and test rig actuation
Presses probes or sample trays in benchtop testers where the short body fits inside the instrument frame and 100.5 N at 0.5 MPa is ample.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X25-10 the Right Cylinder?
At 100.5 N push at 0.5 MPa this 16 mm bore suits light clamping and positioning; step down to the 12 mm bore (56.5 N) for smaller loads or up to the 20 mm bore (157.1 N) when you need more force in the same footprint. The stop screw is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, so on air loss the rod can still drift. Mount with FA flange or LB foot hardware, and if you need position sensing, order the -S variant so CMSE / DMSE switches can be fitted.
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 ACEJ16X25-10 FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa, 140.7 N push and 105.6 N pull; theoretical maximum is 20.5 kgf at 1.0 MPa. The -10 code means an external stop screw shortens the 25 mm extend stroke by up to 10 mm, so the working range is 15-25 mm. The screw is an end stop, not a mid-stroke lock - the rod can drift if air is lost. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits tight jigs and guards. It has a hard-anodized aluminium body, an S45C hard-chrome 8 mm rod with female M4x0.7 thread, M5x0.8 ports and fixed TPU bumpers at both ends. Sensing requires the optional -S magnet code, which enables CMSE / DMSE switches; this model without the S code has no magnet. Strokes beyond the 75 mm standard maximum for this bore are made to order.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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