Airtac JSI Series Standard Cylinder JSI63X225S
The AirTAC Airtac JSI Series Standard Cylinder JSI63X225S is a genuine double acting JIS-standard air cylinder with a Ø63mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ63 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM18×1.5
- CushionAdjustable, 29 mm
- 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 JSI Series Standard Cylinder JSI63X225S
Delivering 1559 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being noticeably shorter than an equivalent ISO 15552 unit of the same 63 mm bore. The extruded hard-anodized aluminum barrel omits external rods entirely to resist wear, while the heterogeneous two-way piston seal retains grease for a long, low-friction service life. Because the -S suffix denotes a built-in piston magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side sensor grooves for precise position detection.
At 0.5 MPa, plan for about 935 N of real work, which translates to lifting roughly 79 kg vertically with a sensible 2:1 safety margin. The unit pushes 2182 N and pulls 1962 N at 0.7 MPa, with a theoretical ceiling of 318 kgf at 1.0 MPa. It features a 20 mm carbon steel rod with an M18x1.5 thread, G3/8 ports, and 29 mm adjustable air cushions at both ends to smoothly decelerate the piston near stroke end.
Airtac JSI Series Standard Cylinder JSI63X225S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI63X225S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M18×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 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 JSI Series Standard Cylinder JSI63X225S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×225 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSI Series Standard Cylinder JSI63X225S Is Used
Pallet Diversion
Lifts and diverts heavy wooden pallets along a packaging line, using the 1559 N push force to reliably push 79 kg loads onto a secondary spur.
Vertical Parts Elevator
Raises stacked metal trays in an automated storage rack, where the compact JIS profile saves headroom and the 225 mm stroke hits the exact lift height.
Press Ejection
Ejects formed aluminum housings from a hydraulic press, relying on the adjustable 29 mm cushion to stop the 20 mm rod smoothly without slamming.
Is the Airtac JSI Series Standard Cylinder JSI63X225S the Right Cylinder?
If 1559 N of push at 0.5 MPa is too much, step down to the JSI50 bore (982 N push); if you need more muscle, the JSI80 bore offers 2513 N. For this 225 mm stroke, keep an eye on side loads and ensure external guide rails support the payload to prevent rod bending. Remember that a standard cylinder drifts when air is lost or the valve is centered, so fit an external rod lock or pilot-operated check valve if you need to hold a suspended load safely. Mounting options include LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, or I/Y/F/U rod knuckles.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSI Series Standard Cylinder JSI63X225S FAQ
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. The air port is G3/8.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore. The -S indicates a built-in piston magnet, which allows CMSE or DMSE sensors to be fitted into the side grooves for position 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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