Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50B
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50B 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 ACEJ20X60-50B
The ACEJ20X60-50B is a double acting AirTAC compact cylinder built to ISO 21287, with a 20 mm bore and a 60 mm stroke that an external stop screw trims anywhere in a 50 mm window, giving a usable extend range of 10-60 mm. 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 the theoretical ceiling is 32 kgf at 1.0 MPa. The B code gives a male rod thread on the 10 mm rod, and the M5x0.8 port suits small-bore plumbing.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. In practice, plan on roughly 94 N of real work at 0.5 MPa, and for vertical duty the rod lifts about 8 kg with a 2:1 margin. The hard-anodized aluminium body carries a hard-chromed S45C rod, a fixed TPU bumper sits at both ends, and speed runs 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50B Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50B |
|---|---|
| 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 ACEJ20X60-50B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×60 | Stroke length in mm. |
| -50 | 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 ACEJ20X60-50B Is Used
Small-part press fitting
Trim the extend stroke to 10-60 mm to seat bearings or pins in electronics assemblies, using about 94 N of usable force at 0.5 MPa.
Pick-and-place lift of small housings
The 10 mm rod lifts about 8 kg vertically with a 2:1 margin, enough for aluminium die-cast covers on a compact gantry.
Adjustable stop on a test rig
Set the extend stroke per product variant on a leak-test fixture without changing hardware, with the male-threaded rod taking a custom probe tip.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50B the Right Cylinder?
Size down to the ACEJ16 (100.5 N push at 0.5 MPa) for lighter clamping, or up to the ACEJ25 (245.4 N push) when this bore's 157.1 N is marginal. 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 mounting bolts to the ISO 21287 face, and if position feedback is needed later, order the -S variant so CMSE / DMSE switches can be fitted; this unit has no magnet.
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 ACEJ20X60-50B 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. Theoretical maximum is 32 kgf at 1.0 MPa. 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, air filtered to 40 um.
An external stop screw shortens the 60 mm extend stroke by up to 50 mm, so any extend length from 10 to 60 mm is set on site; it is a mechanical end stop, not a load-holding lock. The body is a hard-anodized ISO 21287 compact design about 50% shorter to mount than an ISO 15552 profile cylinder, with fixed TPU bumpers at both ends and FA/LB mounting options. This model has no magnet; order the -S code to enable CMSE / DMSE switches.
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