Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40 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 ACEJ63X50-40
The ACEJ63X50-40 is a double acting AirTAC compact cylinder built to ISO 21287, with a 63 mm bore and a 50 mm stroke that an external stop screw trims down by up to 40 mm on site, giving a usable extend range of 10-50 mm. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa those rise to 2182.1 N and 2041.3 N, with a theoretical ceiling of 317.9 kgf at 1.0 MPa. The hard-anodized aluminium body carries a fixed TPU bumper at both ends, and the S45C hard-chrome rod ends in a female M10x1.5 thread.
Because the short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, this 63 mm bore slots into presses, clamping fixtures and gantries where a full-length body would overhang. Plan on roughly 935 N (about 95 kg) of real work at 0.5 MPa rather than the full rating, or think of it as lifting about 79 kg vertically with a 2:1 margin. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and this version has no magnet, so CMSE / DMSE switches need the optional -S code.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40 Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40 |
|---|---|
| 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 ACEJ63X50-40
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×50 | 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40 Is Used
Pneumatic press station
A short-stroke pressing head on an electronics assembly line, where the 10-50 mm adjustable extend range lets technicians dial in the press depth without swapping cylinders.
Fixture clamping on a machining centre
Clamping aluminium castings in a CNC fixture, using about 935 N of usable force at 0.5 MPa and the FA flange mount to bolt straight onto the ISO 21287 face.
Small parts ejection from a mould
Kicking finished caps off a packaging mould at up to 500 mm/s, with the compact body fitting inside the guard space a full-length profile cylinder would need.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40 the Right Cylinder?
At 1558.6 N push at 0.5 MPa, the 63 mm bore sits between the 50 mm bore (981.7 N) and the 80 mm bore (2513.3 N), so pick 63 mm when a 50 mm unit is under-rated but 80 mm is oversized for the fixture. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock: on air loss the piston still drifts, so add a separate valve or brake if the load must be held. FA flange or LB foot mounts bolt to the ISO 21287 face, and if position feedback is needed later, order the -S variant 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 ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X50-40 FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa, 2182.1 N push and 2041.3 N pull; theoretical maximum is 317.9 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 50 mm extend stroke to anywhere between 10 and 50 mm. It is a mechanical end stop only - it does not lock or hold the load if air is lost.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome 16 mm rod, fixed TPU bumpers at both ends and FA/LB mounting options. Sensing is not fitted on this version: the magnet is the optional -S code, so order ACEJ63X50-40S if you want CMSE / DMSE switches to work.
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