
The AirTAC Airtac JSID Double Rod Cylinder JSID63X300 is a genuine double acting, double rod JIS-standard air cylinder with a Ø63mm bore and 300mm stroke, G3/8 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 1402 N of thrust in both directions at 0.5 MPa, this 63 mm bore double-rod actuator uses a single piston with a rod exiting each cover. Because the pressure area is identical on both faces, push and pull forces remain perfectly equal. This makes the safe working load roughly 841 N, which translates to lifting about 71 kg vertically with a 2:1 safety margin. The G3/8 port feeds the chamber efficiently, while the symmetric load path prevents piston twist.
Built to JIS standards with an extruded hard-anodized aluminum profile barrel, it is noticeably shorter than an ISO 15552 cylinder of the same bore. The twin rods provide inherent anti-rotation guidance and allow you to drive two tools simultaneously or mount a sensor cam at the back. Note this specific SKU lacks a magnet and cannot accept CMSE/DMSE switches; you would need the -S variant for sensing. Furthermore, a plain cylinder drifts on air loss—the adjustable 29 mm cushions only decelerate near stroke end, so fit an external rod lock for load holding.
| Model | Airtac JSID Double Rod Cylinder JSID63X300 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 mm |
| Acting type | Double acting, double rod |
| Port size | G3/8 |
| Rod thread | M18×1.5 |
| 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, 29 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 | Force (both ways) | — |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 318 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). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×300 | 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.
Uses the rod extending from the rear cover to push a parallel conveyor lane simultaneously, keeping cycle times synchronized without adding a second valve.
Relies on the twin-rod geometry to resist torsional deflection during heavy clamping, ensuring the gripper jaw maintains precise alignment under offset loads.
Exploits the equal push and pull forces to press components downward and retract the tooling with consistent authority, stabilizing the load path.
At 0.5 MPa, this 63 mm bore yields 1402 N equally in both directions. Sizing both ways, stepping down to a 50 mm bore gives 825 N, while stepping up to an 80 mm bore provides 2268 N. Choose the double-rod layout when your mechanism demands strict anti-rotation control, symmetric load distribution, or twin tooling driven from one piston. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because this is a non-magnet SKU, position sensing is impossible without switching to the -S version. For this 300 mm stroke, always support the load with external guides to prevent rod bending and premature seal wear under side loads.
Quick checklist
Because the rod passes through both covers, force is equal in both directions. It generates 1402 N at 0.5 MPa and 1962 N at 0.7 MPa. The theoretical maximum is 286 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, and it uses a G3/8 port.
No. This SKU lacks a magnet, so it cannot take CMSE/DMSE switches; you need the -S variant for sensing. Additionally, the air cushions only decelerate the piston near stroke end. To hold a load securely on air loss, install an external rod lock or pilot-operated check valve.
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