
The AirTAC Airtac JSI Series Standard Cylinder JSI100X950 is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 950mm 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 JSI100X950 is a robust double-acting JIS-standard profile cylinder built for long-stroke tasks. Its extruded hard-anodized aluminum barrel omits external rods, making the unit shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The internal two-way piston seal retains grease exceptionally well, ensuring low-friction operation over a long service life.
This specific SKU lacks the -S magnet, meaning it cannot support CMSE or DMSE position switches without upgrading to the sensed variant. For practical sizing, plan for about 2356 N of real work at 0.5 MPa, which safely lifts roughly 200 kg vertically with a 2:1 margin. The G1/2 port handles the necessary air volume, and adjustable 33 mm cushions at both ends decelerate the heavy piston smoothly.
| Model | Airtac JSI Series Standard Cylinder JSI100X950 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 950 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). |
| ×950 | 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.
Moves heavy stamped metal doors and hoods along a 950 mm transfer line, utilizing the 3927 N push force to push parts securely into welding fixtures.
Ejects loaded pallets from an assembly conveyor, relying on the adjustable 33 mm cushions to stop the 100 mm bore smoothly without jarring the goods.
Indexes large shipping cartons onto roller conveyors in a distribution center, where the compact JIS profile saves valuable floor space.
When sizing this 100 mm bore, stepping down to a JSI80X950 drops the 0.5 MPa push force to 2513 N, while moving up to a JSI125X950 increases it to 6136 N. Because this is a 950 mm stroke, external guides are strongly recommended to prevent rod bending and absorb side loads during long extensions. Note that a standard cylinder drifts when air is lost or the valve is centered; the air cushions only decelerate the piston near the stroke ends and do not act as a lock. For suspended loads, install an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA/FB flange, CA/CB/CR clevis, and TC/TCM1/TCM2 trunnion styles.
Quick checklist
At 0.5 MPa, it provides 3927 N push and 3574 N pull. At 0.7 MPa, it delivers 5497 N push and 5003 N pull. The theoretical maximum is 801 kgf at 1.0 MPa. The air port is G1/2, the rod is Ø32 mm with an M26x1.5 thread, and the speed range is 30-800 mm/s.
No, this specific SKU does not include a magnet. To use CMSE or DMSE switches in the side sensor grooves, you must select the JSI100X950-S variant. Additionally, remember this JIS profile cylinder is shorter and more compact than a standard ISO 15552 model of the same bore.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.