Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-30
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm bore and 40mm 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
- Stroke40 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 ACEJ16X40-30
The ACEJ16X40-30 is a double acting AirTAC compact cylinder built to ISO 21287, with a 16 mm bore and a 40 mm stroke that an external stop screw can trim anywhere in a 30 mm window, giving a usable extend range of 10-40 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. Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into slim fixtures, small guarding frames and bench-top rigs where a full-length body simply will not fit.
For sizing, treat roughly 60 N (about 0.6 of the push figure) as the practical working force at 0.5 MPa, and expect it to lift about 5 kg vertically once a 2:1 margin is applied. The hard-anodized aluminium body carries an S45C hard-chrome-plated rod with a female M4x0.7 thread, a fixed TPU bumper at each end absorbs end-of-stroke shock, and air supply is 0.15-1.0 MPa (22-145 psi) with speeds of 30-500 mm/s. Note that the stop screw sets the end position only - it is not a mid-stroke lock, so the piston can still drift if air is lost.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-30 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 40 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 ACEJ16X40-30
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -30 | 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 ACEJ16X40-30 Is Used
Small jig clamping
The 100.5 N push at 0.5 MPa clamps light aluminium or plastic workpieces in drill and assembly jigs, and the 10-40 mm extend range lets the setter dial in the clamp position without changing cylinders.
Electronics part ejection
A 40 mm stroke trimmed down to as little as 10 mm is ideal for pushing small PCBs or connector housings off a nest, with the fixed TPU bumper quieting each cycle at 30-500 mm/s.
Lab and test-rig actuation
In compact test stations the short ISO 21287 body fits inside guarding where an ISO 15552 profile cylinder is too long, lifting sample trays of about 5 kg vertically with margin to spare.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X40-30 the Right Cylinder?
At 16 mm bore this unit delivers 100.5 N push at 0.5 MPa - step down to a 12 mm bore (56.5 N) for lighter pick-and-place heads, or up to 20 mm (157.1 N) if your tooling weight grows. The -30 window suits jobs where the final extend position is tuned on the machine rather than fixed at order time. FA flange or LB foot mounts and I/Y rod knuckles bolt to the ISO 21287 face; if you later need position feedback, order the -S variant so CMSE / DMSE switches can be fitted - this model has no magnet 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 ACEJ16X40-30 FAQ
This 16 mm bore double acting cylinder pushes 100.5 N and pulls 75.4 N at 0.5 MPa, and 140.7 N / 105.6 N at 0.7 MPa, with a theoretical maximum of 20.5 kgf at 1.0 MPa. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, with a fixed TPU bumper at both ends and an M5x0.8 port.
An external stop screw shortens the 40 mm extend stroke by up to 30 mm, so the working range is 10-40 mm; it sets the end position only and does not hold a load if air pressure drops. The body is about 50% shorter than an ISO 15552 profile cylinder and accepts FA flange or LB foot mounting. This version has no magnet - order the -S code to enable CMSE / DMSE switch mounting.
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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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