
The AirTAC Airtac JSI Series Standard Cylinder JSI32X25 is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 25mm stroke, G1/8 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 402 N of push force at 0.5 MPa, this 32 mm bore double-acting actuator fits where space is tight. Built to JIS standards, its extruded hard-anodized aluminum profile makes it shorter and more compact than an ISO 15552 cylinder of the same bore. The two-way piston seal retains grease for low-friction life, and the G1/8 port keeps pneumatic plumbing small.
Because this SKU lacks the -S magnet, it cannot take a CMSE or DMSE position switch. For real-world sizing, plan for about 241 N of actual work at 0.5 MPa, which means it lifts about 20 kg vertically with a 2:1 safety margin.
| Model | Airtac JSI Series Standard Cylinder JSI32X25 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 20 mm |
| Max standard stroke | Up to 1000 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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.
Pushes lightweight plastic mouldings out of an injection press with a fast 25 mm stroke.
Secures thin electronic PCBs during soldering without overwhelming the delicate fixture.
Flicks small hardware items down a packaging line using compact 32 mm bore force.
If you need less force, there is no smaller JSI bore; stepping up to the 40 mm bore gives you 628 N push at 0.5 MPa. This 25 mm stroke is very short, so side-load bending is minimal, but always guide the load rigidly. Note that air loss or a centered valve will let the piston drift, as the adjustable cushions only decelerate the stroke end—add a pilot-operated check valve if you must hold a load. To use magnetic sensors, switch to the JSI32X25-S variant.
Quick checklist
At 0.5 MPa it pushes 402 N and pulls 345 N. At 0.7 MPa it pushes 563 N and pulls 483 N. The theoretical maximum is 82 kgf at 1.0 MPa. The air port is G1/8.
It is shorter and more compact than an ISO 15552 cylinder of the same 32 mm bore, saving machine space. The extruded aluminum body has no external rods, and you can mount it via LB foot, FA flange, or TC trunnion.
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