
The AirTAC Airtac JSI Series Standard Cylinder JSI100X320 is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 320mm 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 JSI100X320 is a heavy-duty double-acting JIS-standard profile cylinder built for large-scale automation. Its extruded hard-anodized aluminum barrel omits external rods entirely, making the unit noticeably shorter and more compact than an equivalent ISO 15552 cylinder of the same 100 mm bore. This space-saving geometry is invaluable on dense machinery, while the internal two-way piston seal actively retains grease for a long, low-friction service life. Air enters via the G1/2 port to drive the 32 mm hard-chrome rod.
Because raw ratings rarely match real-world dynamics, plan for about 2356 N of actual work at 0.5 MPa, which safely lifts roughly 200 kg vertically with a 2:1 margin. The 320 mm stroke moves at 30-800 mm/s, decelerated smoothly by 33 mm adjustable air cushions at both ends. Note that this specific SKU lacks the -S magnet, meaning it cannot host CMSE or DMSE position sensors; order the -S variant if drop-in side-groove sensing is required.
| Model | Airtac JSI Series Standard Cylinder JSI100X320 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 320 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). |
| ×320 | 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 the substantial 3927 N push force required to secure heavy injection molding tooling plates during the low-pressure closing phase.
Uses the 320 mm stroke to push heavy product pallets sideways onto parallel processing lines without requiring extended external space.
Lifts industrial component crates weighing up to 200 kg vertically, relying on the 100 mm bore's robust thrust to maintain steady elevation.
When sizing this 100 mm bore class, verify your actual load against the 3927 N push and 3574 N pull figures at 0.5 MPa. If your application is lighter, stepping down to the 80 mm bore yields 2513 N of push force, whereas moving up to the 125 mm bore provides 6136 N for heavier demands. Since this 320 mm stroke exceeds the 300 mm threshold, external guide rails should be fitted to prevent rod bending and absorb side loads, protecting the internal seals from premature wear.
This non-magnet SKU cannot hold a position electronically, and pneumatically, a standard cylinder will drift if air pressure drops or the valve is centered—the end cushions only decelerate the stroke, they do not act as a brake. To safely suspend a vertical load, integrate an external rod lock or a pilot-operated check valve into your circuit. Mounting options include LB foot brackets, FA/FB flanges, CA/CB/CR clevises, and TC trunnions, alongside I, Y, F, or U rod knuckles to suit your mechanical linkage.
Quick checklist
The JSI100X320 delivers 3927 N push and 3574 N pull at 0.5 MPa, 5497 N push and 5003 N pull at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa. It features a G1/2 air port, a 32 mm rod with an M26x1.5 thread, and 33 mm adjustable cushions at both ends.
It is a JIS-standard profile cylinder that is physically shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore, saving valuable machine space. Because this specific SKU lacks the -S magnet, it cannot support CMSE or DMSE magnetic sensors; you must select the -S version for drop-in switch integration.
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