Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10 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 ACEJ20X80-10
A double acting ISO 21287 compact cylinder, the ACEJ20X80-10 pairs a 20 mm bore with an 80 mm stroke that an external stop screw trims down 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 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding where a full-length body cannot go.
For sizing the load, treat roughly 94 N (about 0.6 of the push force) as the practical working force at 0.5 MPa, which corresponds to lifting about 8 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome plated rod, fixed TPU bumpers sit at both ends, and the optional -S magnet code enables CMSE / DMSE switch sensing; without -S no magnet is fitted.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10 |
|---|---|
| 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 ACEJ20X80-10
| 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 ACEJ20X80-10 Is Used
Small-part ejection from plastic molds
The 70-80 mm adjustable extend range lets a mold setter fine-tune ejection travel on the bench, while 157.1 N at 0.5 MPa clears lightweight parts reliably.
Packaging line product diverters
Compact enough to mount between conveyor frames, the 20 mm bore pushes cartons or blisters off a belt at speeds of 30-500 mm/s.
Lab sample press and dispensing stations
About 8 kg of vertical lift capability with a 2:1 margin covers vial capping and light sample pressing in automated laboratory equipment.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10 the Right Cylinder?
At 157.1 N push (0.5 MPa) this 20 mm bore suits light clamping and transfer tasks; step down to a 16 mm bore (100.5 N) for smaller loads or up to a 25 mm bore (245.4 N) when more force is needed. The -10 window means you can dial the extend stroke anywhere between 70 and 80 mm on site, but the stop screw is an end stop only - on air loss the piston still drifts, so do not rely on it to hold a load. Female M6x1.0 rod thread, M5x0.8 ports, FA flange or LB foot mounting, and order the -S code if CMSE / DMSE position sensing is required.
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 ACEJ20X80-10 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. The -10 code is a 10 mm adjustment window: an external stop screw shortens the 80 mm extend stroke on site, so the working range is 70-80 mm. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, with a female M6x1.0 rod thread and M5x0.8 ports.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange or LB foot brackets bolt straight to the standard face. Position sensing requires the optional -S magnet code, which allows CMSE or DMSE switches to be clipped onto the body; this model without the S code carries no magnet, so no switch will trigger. Fixed TPU bumpers at both ends absorb end-of-stroke impact.
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