Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50
The AirTAC Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø20mm bore and 60mm stroke, 1/8" 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 size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50
This ACEJ20X60-50 is a double acting ISO 21287 compact cylinder with a 20 mm bore and a 60 mm stroke that an external stop screw trims on site by up to 50 mm, 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 those figures rise to 219.9 N and 164.9 N, with a theoretical ceiling of 32 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi) and rod speed runs 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 tight jigs and guarding where a full-length body cannot. Plan on roughly 94 N of real work at 0.5 MPa (about 0.6 of the push force), which is around 9 kg of vertical lift with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke energy, and the optional -S magnet enables CMSE / DMSE switches; this unit has no magnet fitted.
Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50 Technical Specifications
| Model | Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 60 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| 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 ACEJ20X60-50
| 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 ACEJ20X60-50 Is Used
Fixture clamp stroke tuning
On a small assembly jig, the stop screw sets the clamp travel anywhere from 10 to 60 mm so one cylinder serves several part heights; the 157.1 N push at 0.5 MPa handles light clamps with margin to spare.
Compact ejection unit
The short body, about 50% shorter in mounting length than an ISO 15552 profile cylinder, fits inside a tight machining-fixture slide to eject finished 5-8 kg parts at up to 500 mm/s.
Presence verification press
In an electronics line, the trimmed stroke presses a connector home and retracts at 30-500 mm/s; with the optional -S magnet, a CMSE or DMSE switch confirms the end position.
Is the Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50 the Right Cylinder?
At 157.1 N push (0.5 MPa) this 20 mm bore suits light clamping and positioning; step down to a 16 mm bore (100.5 N) for smaller loads or up to a 25 mm bore (245.4 N) when you need more margin. The -50 window means you can set the extend stroke anywhere from 10 to 60 mm, but the stop screw is a mechanical end stop only - on air loss the piston drifts, so do not treat it as a load-holding lock. FA flange or LB foot mounts bolt to the ISO 21287 face, and if position feedback is needed later, order the -S magnet code so CMSE / DMSE switches can be fitted.
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 ACEJ20X60-50 FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; 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 -50 code is a 50 mm adjustment window: an external stop screw shortens the 60 mm extend stroke by up to 50 mm, so the usable range is 10-60 mm. It cannot lengthen the stroke past 60 mm, and the stop is not a mid-stroke lock - on air loss the piston still drifts.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body and an S45C hard-chrome-plated 10 mm rod, with a fixed TPU bumper at both ends to absorb end-of-stroke energy. Mounting options include FA flange and LB foot plus I and Y rod knuckles. Position sensing needs the optional -S magnet code, which allows CMSE / DMSE switches; this model (no S) has no magnet, so no sensor can be mounted. Port is 1/8", rod thread is female M6x1.0, and operating pressure is 0.15-1.0 MPa (22-145 psi).
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACEJ12 Adjustable Compact Cylinder ACEJ20X60-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.