
The AirTAC Airtac JSI Series Standard Cylinder JSI100X80STC is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 80mm 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 JSI100X80STC is a double-acting JIS-standard profile cylinder built for heavy-duty automation. Its extruded hard-anodized aluminum barrel omits external rods entirely, making it significantly shorter and more compact than an equivalent ISO 15552 cylinder of the same 100 mm bore. The internal two-way piston seal retains grease for low-friction longevity, while the 80 mm stroke operates at speeds of 30-800 mm/s.
This specific SKU includes a built-in piston magnet (-S) for direct mounting of CMSE or DMSE electronic switches into the side sensor grooves. It also features a TC trunnion mount interface. With a 60 percent safety factor, expect about 2356 N of real working load at 0.5 MPa, which translates to lifting roughly 200 kg vertically with a 2:1 margin. The G1/2 air port handles the necessary volume for this high-force actuator.
| Model | Airtac JSI Series Standard Cylinder JSI100X80STC |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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). |
| ×80 | 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.
Clamps heavy chassis fixtures with 3927 N of push force at 0.5 MPa, ensuring rigid panel alignment during robotic spot welding.
Uses the TC trunnion mount to articulate a heavy diverter arm, smoothly routing loaded pallets at speeds up to 800 mm/s.
Exerts up to 801 kgf of theoretical max force to eject dense metal blanks from a stamping press bed in under a second.
When sizing this 100 mm bore actuator, verify your force requirements against its neighbors: a 125 mm bore yields 6136 N push at 0.5 MPa, whereas stepping down to an 80 mm bore provides 2513 N. The TC trunnion mount supplied with this unit allows pivoting articulation, ideal for mid-stroke radial loads. Because the -S magnet is present, you can easily integrate position sensing. At an 80 mm stroke, rod-bending stress is minimal, but always ensure the load is guided to prevent side-load damage. Remember that standard air cushions only decelerate the piston near the stroke ends; they do not function as a brake. If your application must hold a vertical load during air loss or valve centering, the piston will drift, requiring an external rod lock or a pilot-operated check valve.
Quick checklist
The 100 mm bore generates 3927 N push and 3574 N pull at 0.5 MPa, 5497 N push and 5003 N pull at 0.7 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa. The air port is G1/2, the rod is 32 mm with an M26x1.5 thread, and the adjustable cushion stroke is 33 mm.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore, saving machine space. It uses a hard-anodized aluminum extruded barrel with no external rods, and this STC version includes a TC trunnion mount and an -S magnet for CMSE/DMSE sensors.
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