
The AirTAC Airtac JSI Series Standard Cylinder JSI32X350 is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 350mm 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.
Generating 402 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being noticeably shorter than an ISO 15552 cylinder of the same 32 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while a two-way piston seal retains grease for long, low-friction life. Plan for roughly 241 N of real work at 0.5 MPa, which translates to lifting about 20 kg vertically with a 2:1 safety margin.
Because this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches. Air connections use a G1/8 port, and the 12 mm carbon steel rod features an M10x1.25 thread. The adjustable air cushion at both ends decelerates the piston over 20 mm near stroke end.
| Model | Airtac JSI Series Standard Cylinder JSI32X350 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 350 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). |
| ×350 | 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 using 402 N of push force at 0.5 MPa over a 350 mm reach.
Actuates a routing flap on a compact packaging line where the shorter JIS profile saves critical clearance.
Moves a 15 kg test probe array vertically into position, well within the 20 kg safe vertical lift capacity.
When sizing this 32 mm bore, stepping up to the JSI40X350 yields 628 N of push at 0.5 MPa, while there is no smaller JSI option available if you need less force. Since this is a plain cylinder without a magnet, you cannot mount reed or solid-state sensors directly; choose an -S variant if you need CMSE or DMSE detection. If your process must maintain a vertical position during air loss or valve centering, note that the piston will drift, so an external rod lock or pilot-operated check valve is required.
At a 350 mm stroke, the 12 mm rod is susceptible to bending under lateral stress. Always guide the load externally to prevent side-loading and ensure the force remains strictly axial.
Quick checklist
This 32 mm bore cylinder features a G1/8 port and delivers a push of 402 N and pull of 345 N at 0.5 MPa. At 0.7 MPa, push is 563 N and pull is 483 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
The JSI series follows JIS standards and uses an extruded aluminum barrel without external rods, making it shorter and more compact than an ISO 15552 cylinder of the same bore. This design is ideal for tight machine layouts.
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