Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10SB
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10SB 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 ACEJ20X80-10SB
A double acting compact actuator built to ISO 21287, the ACEJ20X80-10SB pairs a 20 mm bore with an 80 mm stroke that an external stop screw trims by up to 10 mm, giving a usable extend range of 70-80 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, and the fitted -S magnet lets CMSE or DMSE switches report position along the slotted body. The male rod thread (B code) bolts straight into standard tooling.
The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit. A fixed TPU bumper at each end absorbs end-of-stroke shock, the S45C hard-chrome rod resists wear, and with 0.15-1.0 MPa (22-145 psi) air and 30-500 mm/s speed it suits fast pick-and-place duty. As a rule of thumb, plan for about 94 N of real work at 0.5 MPa, which lifts roughly 9 kg vertically with a 2:1 margin.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10SB Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10SB |
|---|---|
| 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 ACEJ20X80-10SB
| 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 ACEJ20X80-10SB Is Used
Small-part press fitting
The 157.1 N push at 0.5 MPa seats bearings, pins and connectors into plastic housings on electronics assembly benches, with the 70-80 mm trim range matching shallow fixture depths.
Position-checked ejection
With the fitted -S magnet, CMSE or DMSE switches confirm the rod has retracted before the next PCB tray indexes, preventing double-stacked parts.
Bottle gating on filling lines
The short body tucks beside conveyor guide rails to divert or stop containers, and the male rod thread accepts a gate paddle directly.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10SB the Right Cylinder?
Size against the load: the next bore down (16 mm) delivers only 100.5 N push at 0.5 MPa, while stepping up to 25 mm gives 245.4 N, so this 20 mm unit sits squarely in the light-assembly band. If your part weight approaches 9-10 kg vertical, move to the 25 mm bore instead. Remember the stop screw only shortens the extend stroke and drifts on air loss, so it is not a mid-stroke lock. FA flange or LB foot mounts plus I/Y rod knuckles attach to the ISO 21287 face, and the fitted -S magnet means CMSE / DMSE switches can be added at any time.
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 ACEJ20X80-10SB FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push rises to 219.9 N and pull to 164.9 N, with a theoretical maximum of 32 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 10 mm adjustable window on the 80 mm stroke and an M5x0.8 port.
It is an ISO 21287 compact cylinder whose body saves about 50% of the mounting length of an ISO 15552 profile cylinder. FA flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard face, and a fixed TPU bumper at both ends absorbs end-of-stroke impact. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be clipped onto the body slots for end-position feedback.
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