Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X30-20B
The AirTAC ACEJ12 Adjustable Compact Cylinder ACEJ16X30-20B is a genuine double acting, double rod, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm bore and 30mm 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
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod, 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 ACEJ16X30-20B
The ACEJ16X30-20B is a double acting ISO 21287 compact cylinder with an adjustable extend stroke. The B code gives a male rod thread on the 8 mm rod, and the port is M5x0.8. An external stop screw trims the 30 mm stroke by up to 20 mm on site, so the working range is 10-30 mm without changing the cylinder.
The hard-anodized aluminium 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 cannot. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the two-way piston seal stores grease for longer service.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X30-20B Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X30-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 30 mm |
| Acting type | Double acting, double rod, 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 75 N |
| 0.7 MPa | 106 N |
| Max (@1.0 MPa) | 15 kgf |
ACEJ is double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X30-20B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×30 | 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 (double rod, 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 ACEJ16X30-20B Is Used
Small-part ejection
Ejects stamped terminals or plastic caps off a die with 100.5 N at 0.5 MPa, the 10-30 mm trim matching shallow die pockets.
Bench-top fixture clamping
Clamps circuit boards or small brackets in a test jig, the short body fitting inside the fixture frame and the male thread taking a knuckle.
Sorting gate actuator
Kicks small parts at a conveyor diverter; order the -S code if CMSE / DMSE switches are needed to confirm gate position.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X30-20B the Right Cylinder?
Plan on roughly 60 N of usable work at 0.5 MPa rather than the full rating. The male rod thread (B) suits couplings and knuckles, FA flange or LB foot mounts bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches - this unit has no magnet fitted, so position sensing is not possible without ordering -S. The stop screw is an end stop only: on air loss the piston still drifts, so it is not a load-holding brake.
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 ACEJ16X30-20B FAQ
Push is 100.5 N and pull 75.4 N at 0.5 MPa; at 0.7 MPa push is 140.7 N and pull 105.6 N; theoretical maximum is 20.5 kgf at 1.0 MPa. The base stroke is 30 mm and the -20 stop screw trims the extend stroke by up to 20 mm, giving a 10-30 mm range. It runs double acting on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s with an M5x0.8 port and a male rod thread.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body, S45C hard-chrome-plated 8 mm rod and threaded covers, about 50% shorter in mounting length than an ISO 15552 profile cylinder. Fixed TPU bumpers at both ends absorb end-of-stroke energy. FA flange and LB foot mounts fit the standard face. Position sensing requires the optional -S magnet ordered with the cylinder; CMSE / DMSE switches then mount in the body slots. This model, without -S, carries no magnet.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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