
The AirTAC JSID Double Rod Cylinder JSID80X250 is a genuine double acting, double rod JIS-standard air cylinder with a Ø80mm bore and 250mm 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 2268 N of thrust in both directions at 0.5 MPa, this 80 mm bore double-rod actuator uses a single piston with a rod exiting each cover. The symmetric layout creates an equal pressure area on both faces, completely eliminating the push-pull force differential found in single-rod units. This JIS-standard profile body is notably shorter than an equivalent ISO 15552 cylinder, and its hard-anodized aluminum extrusion keeps weight down while resisting workshop wear. A G3/8 port feeds the chambers, and adjustable air cushions decelerate the 250 mm stroke at both ends.
Because the twin rods resist torsional twist and provide a symmetric load path, the unit excels in guiding heavy carriages without extra rails. Note that this specific SKU lacks a piston magnet, so it cannot host CMSE or DMSE sensors; add the -S variant if you require position detection.
| Model | Airtac JSID Double Rod Cylinder JSID80X250 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod |
| Port size | G3/8 |
| Rod thread | M22×1.5 |
| 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 both rod ends to push and retract workpieces on parallel conveyor lanes simultaneously, ensuring perfectly synchronized part flow.
Employs the twin rods to guide a heavy stamping head up and down without twisting, maintaining precise alignment under high off-center loads.
Drives a vertical lifting platform where the equal push and pull forces provide balanced motion control for heavy material handling rigs.
When sizing this 80 mm bore, stepping down to a 63 mm unit yields 1402 N each way, while moving up to a 100 mm bore provides 3574 N both ways. Choose this double-rod configuration when your mechanism demands anti-rotation stability, needs to drive two tools simultaneously from one actuator, or requires a sensor cam on the back end. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. For this 250 mm stroke, ensure you provide external linear guidance to prevent side-loading damage to the rod seals. Remember that a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if the load must be held.
Quick checklist
The force is equal in both directions because of the double-rod design. It outputs 2268 N at 0.5 MPa and 3175 N at 0.7 MPa, with a theoretical maximum of 463 kgf at 1.0 MPa. The air port size is G3/8.
No, a plain pneumatic cylinder does not hold load on air loss or when the valve is centered, as the air cushion only decelerates near the stroke end. To maintain a vertical position, you must install an external rod lock or a pilot-operated check valve.
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