Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-40
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-40 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø20mm bore and 60mm 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
- Stroke60 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 ACEJ20X60-40
This double acting AirTAC ACEJ20X60-40 is an ISO 21287 compact cylinder with a 20 mm bore and a 60 mm stroke that an external stop screw trims anywhere in a 40 mm window, giving a usable extend range of 20-60 mm. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N at 0.7 MPa. The hard-anodized aluminium body with an S45C hard-chrome rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped pick-and-place gantries and test rigs. For sizing, plan on roughly 94 N (about 9.6 kgf) of real work at 0.5 MPa, which lifts about 8 kg vertically with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the female M6x1.0 rod thread takes standard tooling plates. Note this unit has no magnet fitted; order the -S code if you later need CMSE / DMSE switch positions.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-40 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-40 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 60 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 ACEJ20X60-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×60 | Stroke length in mm. |
| -40 | 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 ACEJ20X60-40 Is Used
Small-part ejection from plastic molds
A trimmed 20-60 mm extend stroke nudges finished clips or caps off the mold face, with 157.1 N at 0.5 MPa enough for light free-falling parts.
Packaging line reject pusher
The stop screw lets one cylinder serve multiple lane widths on a bottling conveyor, kicking off underweight cartons at 30-500 mm/s.
Bench-top test station actuator
About 8 kg of vertical lift capacity with a 2:1 margin presses sample holders into jigs inside compact lab enclosures where a full-length body will not fit.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-40 the Right Cylinder?
At 157.1 N push at 0.5 MPa this 20 mm bore suits light clamping and small part transfer; step down to a 16 mm bore (100.5 N) for lighter loads or up to a 25 mm bore (245.4 N) when the job grows. The 40 mm window means one cylinder can serve several fixture variants, but remember the stop screw is an end stop only - on air loss the piston drifts, so it is not a load-holding brake. FA flange or LB foot mountings bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches.
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 ACEJ20X60-40 FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push is 219.9 N and pull 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The 20 mm bore has an M5x0.8 port, a 10 mm rod with female M6x1.0 thread, and the 60 mm stroke is adjustable down to 20 mm via the 40 mm window. Operating range is 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.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA flange or LB foot mountings bolt straight to its face. Position sensing requires the optional -S magnet code; this unit ships without a magnet, so no CMSE / DMSE switch can be read until -S is ordered. A fixed TPU bumper at each end absorbs end-of-stroke energy.
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