
The AirTAC Airtac JSID Double Rod Cylinder JSID125X100S is a genuine double acting, double rod JIS-standard air cylinder with a Ø125mm bore and 100mm stroke, G1/2 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 5734 N of thrust in both directions at 0.5 MPa, this double-acting AirTAC cylinder uses a twin-rod design to provide identical push and pull force. The hard-anodized aluminum profile barrel makes it shorter and more compact than a same-bore ISO 15552 unit, while the G1/2 port handles the high air volume needed for the 125 mm bore.
Because the piston rod exits both ends, the unit resists torsional twist and maintains a symmetric load path. The built-in magnet (-S) allows CMSE or DMSE switches to drop directly into the side grooves for precise end-of-stroke detection. Factoring a 60% safety margin, this setup safely handles a 3440 N working load or vertically lifts about 292 kg.
| Model | Airtac JSID Double Rod Cylinder JSID125X100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 mm |
| Acting type | Double acting, double rod |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 33 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 | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | 8027 N |
| Max (@1.0 MPa) | 1251 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). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×100 | 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 opposing forming tools simultaneously with equal 5734 N force, keeping the workpiece centered without torsional deflection.
Uses the rear rod extension to carry a sensor cam and mirror a pick-and-place motion, ensuring perfectly timed dual-end actuation.
Lowers a 292 kg guided platen smoothly using the 33 mm adjustable air cushions at both ends to absorb the equal bidirectional kinetic energy.
This 125 mm bore sits at the top of the JSID range, delivering 5734 N each way at 0.5 MPa. If your application needs less force, stepping down to the 100 mm bore yields 3574 N both ways. Choose the double-rod configuration when you need anti-rotation guidance, twin tooling driven from both ends, or a cam for back-end sensing. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S suffix confirms the piston magnet is present for CMSE/DMSE sensors. Even at 100 mm stroke, always support any side loads with an external guide to prevent premature seal wear.
Quick checklist
Because the rod passes through both covers, force is equal in both directions: 5734 N at 0.5 MPa and 8028 N at 0.7 MPa. The theoretical maximum is 1169 kgf at 1.0 MPa. Operating speed ranges from 30-500 mm/s. It uses a G1/2 port and M27x2.0 rod thread.
No, a standard pneumatic cylinder drifts when air is lost or the valve is centered, as the 33 mm adjustable cushions only decelerate the piston near stroke end rather than locking it. To maintain a vertical position safely, you must add an external rod lock or a pilot-operated check valve.
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