Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10B
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10B 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 ACEJ20X80-10B
A double acting compact cylinder built to ISO 21287, the ACEJ20X80-10B pairs a 20 mm bore with an 80 mm stroke and a male-threaded 10 mm rod. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa. The -10 code adds a stop screw that trims the extend stroke on site anywhere in a 10 mm window, so the working range is 70-80 mm without changing the valve or re-piping.
The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which matters in slim gantries and guarded stations. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the S45C hard-chrome rod resists wear. Plan on roughly 94 N of usable push at 0.5 MPa, enough to lift about 8 kg vertically with a 2:1 margin. Note the stop screw sets the end position only; it does not hold a load if air is lost.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10B Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10B |
|---|---|
| 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 ACEJ20X80-10B
| 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 ACEJ20X80-10B Is Used
Small-parts press station
Trimming the stroke to 70-80 mm lets the 157.1 N push seat connectors or labels in an electronics fixture with a repeatable end stop.
Pick-and-place lift, 8 kg class
With about 8 kg of vertical lift capacity at a 2:1 margin, it raises small trays or PCB carriers in a compact gantry head.
Adjustable ejector on packaging lines
The 10 mm stop screw lets a technician fine-tune the eject position on a carton line without swapping cylinders or reprogramming.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X80-10B the Right Cylinder?
At 157.1 N push at 0.5 MPa this bore sits between the 16 mm (100.5 N) and 25 mm (245.4 N) sizes. If your jig needs more than about 94 N of real working force, step up to the 25 mm bore; if the load is light and space is very tight, the 16 mm may suffice. The male rod thread (B code) suits external rod couplings and knuckles such as the I or Y types, while FA flange or LB foot mounts bolt to the standard ISO 21287 face. If you later need position sensing, order the -S variant, since this model has no magnet and accepts no CMSE / DMSE switch.
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 ACEJ20X80-10B FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push reaches 219.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is double acting, runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a 10 mm extend-stroke adjustment window (70-80 mm usable).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits narrow slides and guarded frames. Mounts include FA flange and LB foot plus I/Y rod knuckles. This version has no magnet, so no CMSE or DMSE switch can be fitted; choose the -S code at order time to enable sensing.
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