
The AirTAC Airtac JSI Series Standard Cylinder JSI32X40 is a genuine double acting JIS-standard air cylinder with a Ø32mm bore and 40mm 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 32 mm bore cylinder fits tight machine layouts. Its JIS-standard extruded aluminium profile is noticeably shorter than an ISO 15552 unit of the same bore. The hard-anodized barrel omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life.
Because this SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches. For sizing real work, plan for roughly 241 N of usable load at 0.5 MPa, which equates to lifting about 20 kg vertically with a 2:1 safety margin. Air connects via a G1/8 port, and adjustable cushions decelerate the 12 mm rod at both stroke ends.
| Model | Airtac JSI Series Standard Cylinder JSI32X40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 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). |
| ×40 | 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 402 N, safely handling parts under the 20 kg vertical lift threshold.
Cycles a 40 mm stroke to secure delicate circuit boards during routing, using the compact JIS profile to save valuable floor space.
Moves a lightweight sorting flap on a packaging line, where the hard-anodized barrel withstands repetitive daily cycling.
If 402 N of push is too much for delicate parts, AirTAC does not offer a smaller JSI bore, so you must add external flow controls or regulator pressure. Stepping up to the JSI40X40 yields 628 N at 0.5 MPa. Keep in mind this plain cylinder drifts if air pressure drops or the valve centers; the cushions only slow the piston near stroke ends, so fit an external rod lock or pilot-operated check valve if you need to hold a load. Without the -S magnet option, this specific model cannot host magnetic sensors.
Quick checklist
This 32 mm bore model uses a G1/8 port. It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push and 483 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
The JSI is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same 32 mm bore. It uses an extruded aluminum barrel without external rods to achieve this space saving.
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