
The AirTAC JSID Double Rod Cylinder JSID40X350S is a genuine double acting, double rod JIS-standard air cylinder with a Ø40mm bore and 350mm stroke, G1/4 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 528 N of thrust in both directions at 0.5 MPa, this 40 mm bore double-rod actuator uses a single piston with a rod exiting each cover. The symmetrical layout creates an equal pressure area on both faces, making push and pull forces identical. The G1/4 port feeds the chambers efficiently across the 30-800 mm/s speed range.
Built to JIS standards, this profile cylinder features an extruded hard-anodized aluminum barrel and is noticeably shorter than an ISO 15552 actuator of the same bore. The -S suffix denotes a built-in piston magnet for CMSE/DMSE switches that mount directly into the side sensor grooves. Adjustable air cushions of 20.5 mm at each end decelerate the payload smoothly, though a plain pneumatic cylinder cannot hold a load without live air—use an external rod lock or pilot-operated check valve for fail-safe load holding.
| Model | Airtac JSID Double Rod Cylinder JSID40X350S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
| JSID | JIS-standard profile cylinder (double-rod type). |
|---|---|
| 40 | 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.
Drives two synchronized grippers from opposite rod ends to transfer parts between conveyor stations without twisting.
Uses the equal both-ways force to position a guiding roller, maintaining precise tension on film or foil webs.
Lifts a 27 kg platform vertically using the rear rod end while the front rod carries a sensor cam for positioning.
This 40 mm bore provides 528 N equal force each way. If your application needs less power, the 32 mm bore offers 345 N both ways; stepping up to the 50 mm bore yields 825 N. Choose a double-rod configuration when you need anti-rotation guidance, symmetric load distribution, or twin tooling driven from both ends. The -S magnet enables precise end-of-stroke sensing with CMSE/DMSE switches. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because the stroke is 350 mm, you must support the load with external guides to prevent rod bending and excessive side loading.
Quick checklist
Force is equal in both directions due to the double rod: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a theoretical maximum of 108 kgf at 1.0 MPa. The air port size is G1/4.
The dual rods provide anti-rotation stability and a symmetric load path, allowing you to mount tooling or a sensor cam on the back end. The -S indicates a built-in magnet for CMSE/DMSE position switches.
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