Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 50mm 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.
- BoreØ63 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.5
- 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S
A double acting ISO 21287 compact cylinder, the ACEJ63X50-20S pairs a 63 mm bore with a 50 mm stroke that an external stop screw trims on site by up to 20 mm, giving a usable extend range of 30-50 mm. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa, with a theoretical ceiling of 317.9 kgf at 1.0 MPa. The S code means the magnet is fitted, so CMSE / DMSE reed or solid-state switches can be clipped onto the body slots for end-of-stroke signalling.
The hard-anodized aluminium body with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight presses, weld fixtures and gantry clamps a full-length cylinder cannot reach. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the 16 mm rod carries a female M10x1.5 thread. Running 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, it delivers roughly 936 N of dependable work force at 0.5 MPa, which is about 95 kg of vertical lift with a 2:1 margin - enough headroom to raise a loaded aluminium pallet or clamp a steel bracket with confidence.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -20 | 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S Is Used
Pneumatic press for aluminium extrusion crimping
1558.6 N push at 0.5 MPa crimps terminals and light extrusions; trim the extend stroke between 30-50 mm to match die height without re-plumbing.
Pallet lift station on an electronics assembly line
About 95 kg vertical lift with a 2:1 margin handles loaded SMT pallets; the fitted magnet plus a CMSE switch confirms the raised position.
Weld fixture clamping on automotive brackets
The short ISO 21287 body fits inside tight fixture frames, and the 20 mm adjustment window absorbs bracket tolerance stack-up on site.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S the Right Cylinder?
Size against neighbours: a 50 mm bore gives 981.7 N push at 0.5 MPa, while stepping up to 80 mm raises it to 2513.3 N - pick the 63 mm when your clamp or lift sits between those bands. Remember the stop screw only shortens the extend stroke within the 20 mm window and is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. FA flange or LB foot mounts bolt to the ISO 21287 face, and because the -S magnet is fitted on this model, add CMSE or DMSE switches at order time. Port is 1/8" PT.
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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20S FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push is 2182.1 N and pull 2041.3 N, with a theoretical maximum of 317.9 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: an external stop screw shortens the 50 mm extend stroke by up to 20 mm, so the working range is 30-50 mm. It 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.
The hard-anodized aluminium ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow jigs and guards. A fixed TPU bumper at both ends absorbs end-of-stroke energy. FA flange and LB foot mounts bolt straight to the ISO 21287 face. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted in the body slots for end-of-stroke detection.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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