Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20SB
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 75mm 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
- Stroke75 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 ACEJ63X75-20SB
The ACEJ63X75-20SB is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 75 mm stroke by up to 20 mm on site, giving a usable range of 55-75 mm without swapping the cylinder. At 0.5 MPa the 63 mm bore pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa - enough for heavy clamping and press-fit work in a body that saves about 50% of the mounting length of an ISO 15552 profile cylinder.
The male rod thread (B code) and the fitted -S magnet make integration quick: CMSE or DMSE reed or solid-state switches read position directly on the body, and FA flange or LB foot mounts bolt to the ISO 21287 face. As a rule of thumb, plan on roughly 935 N (about 95 kg) of real work at 0.5 MPa, which is about 60% of the push rating - vertically that means lifting a part of around 47 kg with a 2:1 margin. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, with fixed TPU bumpers at both ends.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20SB Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 75 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 ACEJ63X75-20SB
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×75 | 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 ACEJ63X75-20SB Is Used
CNC fixture clamping
1558.6 N push at 0.5 MPa clamps steel housings in machining fixtures; the 55-75 mm adjustable range lets the setter dial in the exact grip point per part.
Pallet gate actuation
Drives heavy gate arms on conveyor pallet lines; the short ISO 21287 body fits inside the guard frame where a full-length profile cylinder will not.
Bearing press assist
About 2182.1 N at 0.7 MPa presses small bearings and bushings into aluminium housings on a semi-automated assembly bench.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-20SB the Right Cylinder?
Size against neighbours: the 50 mm bore gives 981.7 N push at 0.5 MPa, while stepping up to the 80 mm bore reaches 2513.3 N - choose the 63 mm when your load sits between those classes. The 20 mm window suits jigs where the final stop position is tuned during commissioning; remember the stop screw only shortens the extend stroke and is a mechanical end stop, not a mid-stroke lock, so on air loss the piston still drifts. This unit carries the -S magnet for CMSE / DMSE switches and a male rod thread; pair it with FA flange, LB foot, FTC brackets or I/Y rod knuckles.
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 ACEJ63X75-20SB 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; theoretical maximum is 317.9 kgf at 1.0 MPa. The -20 code sets a 20 mm adjustment window: an external stop screw shortens the 75 mm extend stroke by up to 20 mm, so the working range is 55-75 mm. The stop is a mechanical end stop only - it never holds a load if air is lost.
It is an ISO 21287 compact cylinder with a hard-anodized aluminium body and S45C hard-chrome rod, saving about 50% of the mounting length of an ISO 15552 profile cylinder. Fixed TPU bumpers absorb end-of-stroke energy at both ends. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted in the body slots. FA flange, LB foot, FTC brackets and I/Y rod knuckles bolt straight to the ISO 21287 mounting face; the rod end is male thread and the port is 1/8".
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Standard models are processed and dispatched in 3-5 business days.
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