Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X70-30
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X70-30 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø16mm bore and 70mm 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
- Stroke70 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 ACEJ16X70-30
A double acting ISO 21287 compact cylinder, the ACEJ16X70-30 pairs a 16 mm bore with a 70 mm stroke that an external stop screw can trim anywhere in a 30 mm window, giving a usable extend range of 40-70 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. The hard-anodized aluminium body with an S45C hard-chrome plated 8 mm rod keeps the envelope tight.
Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, it slots into slim fixtures, guarding and pick stations where a full-length body will not fit. In practice, plan for roughly 60 N of real work at 0.5 MPa (about 0.6 of the push rating), which lifts about 5 kg vertically once a 2:1 margin is applied. A fixed TPU bumper at each end absorbs end-of-stroke energy, and the optional -S magnet enables CMSE / DMSE switches; without -S no magnet is fitted.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X70-30 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X70-30 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø16 mm |
| Stroke | 70 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 ACEJ16X70-30
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | 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 ACEJ16X70-30 Is Used
Small-part press fitting
Presses bearings or dowels into plastic housings on an electronics assembly bench, where the 40-70 mm trimmed stroke matches shallow insert depths and the 100.5 N push at 0.5 MPa is enough for light interference fits.
Packaging line reject pusher
Kicks underweight cartons off a narrow conveyor lane; the compact body fits inside the guard frame, and the stop screw lets technicians re-tune the push distance without swapping cylinders.
Lab sample indexing
Advances microplate trays between test stations in compact diagnostic equipment, with the optional -S magnet driving a CMSE switch to confirm each 40-70 mm extend position.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ16X70-30 the Right Cylinder?
At 100.5 N push (0.5 MPa) this 16 mm bore suits light clamping, sorting and eject tasks up to about 60 N of working load. Step down to the 12 mm bore (56.5 N push) for tighter spaces, or up to the 20 mm bore (157.1 N push) if the load creeps above 60 N. Note the stop screw is an extend-stroke end stop only: on air loss the piston drifts, so it is not a load-holding lock. FA flange or LB foot mountings bolt to the ISO 21287 face, and if position feedback is needed, order the -S magnet code 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 ACEJ16X70-30 FAQ
Bore 16 mm, stroke 70 mm adjustable within a 30 mm window (usable extend range 40-70 mm). 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. Port is M5x0.8, rod thread is female M4x0.7, speed range 30-500 mm/s, operating pressure 0.15-1.0 MPa (22-145 psi).
The ISO 21287 body is about 50% shorter in mounting length than an ISO 15552 profile cylinder, so it fits slim jigs and guarded stations. An external stop screw shortens the extend stroke by up to 30 mm; it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. A fixed TPU bumper at both ends absorbs end-of-stroke impact, FA/LB mountings bolt to the standard face, and the optional -S magnet allows CMSE / DMSE switch mounting.
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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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