Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X80-20B
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X80-20B is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 80mm 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
- Stroke80 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 ACEJ63X80-20B
The ACEJ63X80-20B is a double acting, adjustable-stroke compact cylinder built to ISO 21287. Its 63 mm bore delivers 1558.6 N pushing and 1458.1 N pulling at 0.5 MPa, rising to 2182.1 N at 0.7 MPa - a mid-range force class suited to clamping, pressing and lifting fixtures. The -20 code adds an external stop screw that trims the 80 mm extend stroke by up to 20 mm, giving a usable range of 60-80 mm set on site with a wrench, no disassembly needed.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight machine frames and gantries. Inside, a hard-anodized aluminium barrel runs on an S45C hard-chrome-plated 16 mm rod, with fixed TPU bumpers at both ends absorbing end-of-stroke shock. At 0.5 MPa, plan for roughly 936 N (about 95 kg) of real working push rather than the full rating - a sensible margin for tooling loads. The male rod thread (B code) bolts directly to your tooling, and FA flange or LB foot mounts attach to the standard ISO 21287 face.
Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X80-20B Technical Specifications
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X80-20B |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 80 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 ACEJ63X80-20B
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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 ACEJ63X80-20B Is Used
Fixture clamping on CNC machining centres
The 1558.6 N push at 0.5 MPa clamps aluminium or steel workpieces in milling and turning fixtures, and the 60-80 mm adjustable range absorbs fixture height variations without re-plumbing.
Pallet lift-and-lower stations in assembly lines
With about 95 kg of practical vertical capacity at 0.5 MPa, the 63 mm bore raises loaded pallets or trays between conveyor levels at speeds of 30-500 mm/s.
Case press-down on carton sealing machines
The trimmed 60-80 mm stroke presses flaps before taping on packaging lines, and the compact body fits the shallow head frames where a full-length profile cylinder will not.
Is the Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X80-20B the Right Cylinder?
Size against neighbours: the 50 mm bore pushes 981.7 N at 0.5 MPa, while the 80 mm bore reaches 2513.3 N - pick the 63 mm when your load sits between those. Remember the stop screw only shortens the extend stroke within the 20 mm window and is not a mid-stroke lock; on air loss the piston drifts, so add a separate holding valve for suspended loads. This unit has no magnet (no S code), so no CMSE or DMSE switch can be fitted - order the -S variant if position sensing is needed. Choose PT ports as coded here, or the G variant for European fittings.
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 ACEJ63X80-20B FAQ
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa those figures rise to 2182.1 N and 2041.3 N, with a theoretical maximum of 317.9 kgf at 1.0 MPa. The base stroke is 80 mm and the -20 stop screw trims the extend stroke by up to 20 mm, so you can set anywhere from 60 to 80 mm on site. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the 16 mm male-threaded rod connects straight to tooling.
The ISO 21287 short-body design saves about 50% of the mounting length of an ISO 15552 profile cylinder, with fixed TPU bumpers at both ends to absorb end-of-stroke shock. FA flange and LB foot mounts bolt to the standard face. Sensors are only possible on the -S version: this model has no magnet, so order ACEJ63X80-20SB if you need CMSE or DMSE switch detection.
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