
The AirTAC Airtac JSI Series Standard Cylinder JSI100X80 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, this double-acting JIS-standard profile cylinder brings serious power to tight machine envelopes. It is purposefully shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore, saving valuable real estate without sacrificing thrust. 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 this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches. For real-world sizing, plan for about 2356 N of actual work at 0.5 MPa, which translates to lifting roughly 200 kg vertically with a 2:1 safety margin. The unit features a G1/2 port, an M26x1.5 rod thread, and adjustable 33 mm air cushions at both ends to smooth out deceleration.
| Model | Airtac JSI Series Standard Cylinder JSI100X80 |
|---|---|
| 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.
Provides 3927 N of secure clamping force at 0.5 MPa to hold heavy injection mold halves together during the plastic injection cycle.
Generates enough stroke and power to reliably eject dense metal stampings or formed parts from a hydraulic press bed.
Acts as a heavy-duty stopping barrier on high-capacity roller conveyors, halting loaded pallets weighing up to 200 kg.
When sizing this 100 mm bore, stepping down to the JSI80 yields 2513 N push at 0.5 MPa, whereas stepping up to the JSI125 provides 6136 N. If your machine requires end-of-stroke feedback, you must select the -S magnet variant, as this base model cannot host a sensor. For mounting flexibility, you can use LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, or an I/Y/F/U rod knuckle.
Remember that a standard cylinder drifts when air is lost or the valve is centered, as the air cushion only decelerates the piston near stroke end and acts purely as a brake. To hold a load securely in place, install an external rod lock or a pilot-operated check valve.
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 is 801 kgf at 1.0 MPa. The air port is G1/2 and the rod thread is M26x1.5.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. It uses an extruded hard-anodized aluminum barrel with no external rods, saving space while maintaining the same thrust class.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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