Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X35-20
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X35-20 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm 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.
- BoreØ16 mm
- Stroke35 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 ACEJ16X35-20
The ACEJ16X35-20 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. A 16 mm bore delivers 100.5 N push and 75.4 N pull at 0.5 MPa (140.7 N push at 0.7 MPa), and the -20 stop screw lets you trim the 35 mm stroke down to 15 mm on site without swapping the cylinder. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim fixtures and guarding where a full-length body will not fit.
For sizing headroom, treat roughly 60 N (about 6 kg) as the practical working force at 0.5 MPa instead of the full rating, which covers light clamping and small-part ejection with margin. The hard-anodized aluminium body carries an S45C hard-chrome plated 8 mm rod with a female M4x0.7 thread, fixed TPU bumpers at both ends, and M5x0.8 ports. Add the optional -S magnet code if you later want CMSE or DMSE switch position sensing; this model ships without a magnet.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X35-20 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X35-20 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 35 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 ACEJ16X35-20
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| -20 | 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 ACEJ16X35-20 Is Used
Small-part press fitting
Seats dowel pins or bushings into plastic housings on an electronics assembly bench, where the 15-35 mm adjustable stroke matches varying part heights and about 100 N is enough.
Packaging line reject pusher
Kicks underweight cartons off a narrow conveyor; the short ISO 21287 body fits between guard rails where an ISO 15552 profile cylinder would be too long.
Lab sample indexing
Advances microplate trays one station at a time in diagnostic equipment, with the stop screw set precisely to the tray pitch and 30-500 mm/s speed control.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X35-20 the Right Cylinder?
At 100.5 N push (0.5 MPa) this 16 mm bore suits light clamping, sorting and ejection tasks; step down to a 12 mm bore (56.5 N) for smaller loads or up to a 20 mm bore (157.1 N) when you need about 50% more force in the same footprint. Remember the -20 adjuster is a mechanical end stop for the extend stroke only - it does not hold a load if air is lost. Mounting: FA flange or LB foot brackets plus I/Y rod knuckles bolt to the ISO 21287 face; order the -S code if CMSE / DMSE sensing is planned.
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 ACEJ16X35-20 FAQ
At 0.5 MPa it pushes 100.5 N and pulls 75.4 N; at 0.7 MPa push rises to 140.7 N and pull to 105.6 N, with a theoretical maximum of 20.5 kgf at 1.0 MPa. The -20 code is a 20 mm adjustment window: an external stop screw shortens the 35 mm extend stroke to any value from 15 to 35 mm. It is a mechanical end stop, not a load lock - on air loss the piston can still drift. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, with a fixed TPU bumper at each end.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/LB brackets plus I/Y knuckles bolt straight to its face. Position sensing requires the optional -S magnet code - this model (no S) has no magnet, so no CMSE or DMSE switch can be read on it. Ports are M5x0.8, the rod end is female M4x0.7, and the hard-anodized aluminium body carries an S45C hard-chrome rod.
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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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Most inquiries answered within 7-8 hours.
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