Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10S
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø20mm bore and 80mm 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.
- BoreØ20 mm
- Stroke80 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
About the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10S
A double acting ISO 21287 compact cylinder, the ACEJ20X80-10S pairs a 20 mm bore with an 80 mm stroke that an external stop screw trims on site: the -10 code gives a 10 mm window, so the extend stroke can be set anywhere between 70 and 80 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The hard-anodized aluminium body carries the S45C hard-chrome rod, and fixed TPU bumpers sit at both ends.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into slim fixtures a full-length body cannot reach. In practice, plan for roughly 94 N of real work at 0.5 MPa, and count on it lifting about 8 kg vertically with a 2:1 margin. The -S magnet this model carries lets CMSE or DMSE switches read end positions, and FA flange or LB foot mounts bolt straight to the standard face.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10S Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 100 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 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 ACEJ20X80-10S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 ACEJ20X80-10S Is Used
Small-parts ejection on assembly benches
The 157.1 N push at 0.5 MPa ejects stamped terminals or molded inserts from nests, and the 70-80 mm trim lets the stroke match each die depth without re-plumbing.
Lab sample press fixture
About 8 kg of vertical lift with a 2:1 margin covers vial capping and light sample pressing, while the compact body fits inside benchtop guarding.
Vision-check gate actuation
With the fitted -S magnet, CMSE or DMSE switches confirm the gate is fully open before a camera inspection cycle starts on a packaging line.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10S the Right Cylinder?
At 157.1 N push (0.5 MPa) this 20 mm bore suits clamping and positioning loads in the 90 N range; step down to the 16 mm bore (100.5 N) for lighter work or up to the 25 mm bore (245.4 N) when the job needs more margin. Remember the stop screw only shortens the extend stroke within the 10 mm window and drifts on air loss, so it is not a load lock. Choose the female M6x1.0 rod thread as coded, add FA or LB mounting, and keep the -S magnet 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 ACEJ20X80-10S FAQ
At 0.5 MPa it delivers 157.1 N push and 117.8 N pull; at 0.7 MPa, 219.9 N push and 164.9 N pull; theoretical maximum is 32 kgf at 1.0 MPa. Rod speed is 30-500 mm/s, operating pressure 0.15-1.0 MPa (22-145 psi) with proof pressure 1.5 MPa (215 psi), and the media is air filtered to 40 um over a -20 to +70 C range.
An external stop screw shortens the 80 mm extend stroke by up to 10 mm (the -10 window), giving 70-80 mm of usable travel; it is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. The -S magnet fitted to this unit accepts CMSE / DMSE reed or solid-state switches, and the ISO 21287 body takes FA flange or LB foot mounts directly.
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