
The AirTAC Airtac JSI Series Standard Cylinder JSI100X800S is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 800mm stroke, G1/2 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.
Delivering 3927 N of push force at 0.5 MPa, the AirTAC JSI100X800S is a double-acting JIS-standard profile cylinder built for heavy-duty positioning. Its extruded hard-anodized aluminum barrel omits external rods, making it shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The internal two-way piston seal retains grease for a long, low-friction service life across the full 800 mm travel.
Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side grooves for end-of-stroke detection. Plan for roughly 2356 N of real work at 0.5 MPa, which translates to lifting about 200 kg vertically with a 2:1 safety margin. The G1/2 port and M26x1.5 rod thread handle the high airflow needed for the 30-800 mm/s speed range.
| Model | Airtac JSI Series Standard Cylinder JSI100X800S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×800 | 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.
Indexes heavy welding fixtures along an 800 mm axis, using the 3927 N push force to clamp and position steel panels securely.
Pushes loaded pallets between machining centers, relying on the compact JIS profile to fit within tight conveyor framework.
Stages large bulk packaging cartons off a high-speed belt, where the -S magnet triggers CMSE sensors to confirm the full stroke.
When sizing this 100 mm bore, stepping down to the JSI80X800S drops the push force to 2513 N at 0.5 MPa, while moving up to the JSI125X800S increases it to 6136 N. Since this model features an 800 mm stroke, you must use external guide rails to prevent rod bending and absorb side loads during long traverses. Remember that a standard cylinder drifts if air pressure drops or the valve is centered; the adjustable 33 mm air cushions only decelerate the piston near the end caps. Fit an external rod lock or pilot-operated check valve if the application requires strict load holding.
Quick checklist
At 0.5 MPa it provides 3927 N push and 3574 N pull; at 0.7 MPa it provides 5497 N push and 5003 N pull. The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore cylinder uses a G1/2 air port and an M26x1.5 rod thread.
The JIS-standard extruded profile makes it shorter and more compact than a same-bore ISO 15552 cylinder. It cannot hold a load unpowered; the piston drifts on air loss and the cushions only decelerate it near stroke end. You need an external rod lock for holding.
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