Airtac JSI Series Standard Cylinder JSI63X30S
The AirTAC Airtac JSI Series Standard Cylinder JSI63X30S is a genuine double acting JIS-standard air cylinder with a Ø63mm bore and 30mm 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
- Stroke30 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 JSI63X30S
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 to resist wear, while the two-way piston seal retains grease for a long, low-friction service life. Because the SKU includes the -S suffix, a built-in piston magnet is present, allowing CMSE or DMSE electronic switches to drop directly into the side grooves for position sensing.
For practical sizing, plan for around 935 N of real work at 0.5 MPa, which safely lifts about 79 kg vertically with a 2:1 margin. The G3/8 air port feeds the 20 mm piston rod, and the 29 mm adjustable air cushions at both ends absorb kinetic energy at the 30 mm stroke limits.
Airtac JSI Series Standard Cylinder JSI63X30S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI63X30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 30 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 JSI63X30S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×30 | 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 JSI63X30S Is Used
Package Diverter Gate
Snaps a 30 mm stroke diverter arm on a packaging conveyor, using the 1559 N push force to redirect heavy cartons at high speed.
Clamp Actuation
Secures aluminum extrusions in a machining fixture, taking advantage of the compact JIS profile to fit within tight tooling envelopes.
Pallet Stopper Pin
Deploys a short 30 mm stop pin on a roller conveyor to halt incoming pallets, relying on the -S magnet to confirm pin extension.
Is the Airtac JSI Series Standard Cylinder JSI63X30S the Right Cylinder?
When sizing this 63 mm bore, stepping down to a 50 mm unit yields 982 N of push force at 0.5 MPa, whereas stepping up to an 80 mm bore provides 2513 N, giving you clear boundaries if your payload shifts. The included -S magnet perfectly matches CMSE or DMSE sensors for drop-in detection. Note that a standard cylinder drifts when air is lost or the valve is centered; the end cushions only decelerate the piston near stroke end and do not act as a brake, so install an external rod lock or pilot-operated check valve if you must hold a suspended load.
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 JSI63X30S FAQ
This 63 mm bore cylinder features a G3/8 air port and an M18x1.5 rod thread. It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push and 1962 N pull at 0.7 MPa, with a theoretical maximum of 318 kgf at 1.0 MPa.
The JSI is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore, saving space without losing force. Its hard-anodized aluminum barrel lacks external rods, and the -S magnet allows CMSE or DMSE sensors to slot directly into the side grooves.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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