Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20 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 ACEJ63X50-20
A double acting ISO 21287 compact cylinder, the ACEJ63X50-20 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. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs, guards and gantries where a full-length body cannot fit.
Plan on roughly 935 N (about 95 kg) of real work at 0.5 MPa instead of the full rating, and expect it to lift about 79 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries a hard-chrome plated S45C rod, fixed TPU bumpers absorb end-of-stroke energy, and the optional -S magnet enables CMSE / DMSE switches when ordered.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20 Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20 |
|---|---|
| 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 ACEJ63X50-20
| 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 ACEJ63X50-20 Is Used
Fixture clamping on CNC pallets
The 1558.6 N push at 0.5 MPa clamps machined aluminium housings in milling fixtures, with the 30-50 mm adjustable range matching varying part heights.
Carton forming and hold-down
On packaging lines the 63 mm bore holds carton flaps during gluing, and the compact body fits the shallow guard space of the gluing head.
Small-parts press station
With about 935 N of usable working force, it presses bushings into plastic housings on an assembly bench at 30-500 mm/s.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-20 the Right Cylinder?
Size both ways before committing: the 50 mm bore delivers 981.7 N push at 0.5 MPa, while the 80 mm bore reaches 2513.3 N, so the 63 mm sits squarely between them for medium-duty pressing and clamping. The stop screw is a mechanical end stop only, not a mid-stroke lock, so the piston still drifts on air loss. FA flange or LB foot mounting bolts to the ISO 21287 face, and add the -S code if CMSE / DMSE position sensing is needed.
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 ACEJ63X50-20 FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa it pushes 2182.1 N and pulls 2041.3 N. The theoretical maximum is 317.9 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with proof pressure 1.5 MPa (215 psi), and speed runs 30-500 mm/s.
The -20 code means a stop screw shortens the 50 mm extend stroke by up to 20 mm on site, so the usable range is 30-50 mm; it cannot lengthen the stroke. The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, fixed TPU bumpers absorb end-of-stroke energy, and FA/LB mounting plus the optional -S magnet for CMSE / DMSE switches are available. Rod end is female M10x1.5 with a 1/8" port.
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