
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X500-75S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 500mm 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.
The nominal 500 mm travel remains the maximum, yielding a usable extend range of 425-500 mm, while the retract end stays fixed. Because the body uses an extruded hard-anodized aluminum profile rather than retaining rods, the overall envelope is shorter and more compact than a same-bore ISO 15552 unit.
This built-in flexibility means you can fine-tune the end position without swapping the cylinder, making one spare suitable across multiple stroke variants. The -S suffix adds a piston magnet for CMSE/DMSE sensors that drop directly into the side grooves. Pneumatic connections use a G3/8 port, and adjustable air cushions of 29 mm at each end absorb kinetic energy near the stroke limits.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X500-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 500 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×500 | 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 parts off a belt at 500 mm, with the 75 mm window allowing on-site tuning of the push distance to match varying pallet widths.
Lifts approximately 79 kg of stock using the 425-500 mm extend range, relying on the adjustable cushion to decelerate the load smoothly.
Acts as an approach cylinder where the final 75 mm of travel is dialed in precisely to position tooling without remounting the actuator.
The 75 mm adjustable window is especially useful for dialing in exact end positions on-site or keeping a single spare part for machines that need slightly different extend lengths. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE switches for position feedback. Because the 500 mm stroke is long, always use an external guide rail to prevent rod bending and absorb side loads.
Quick checklist
The theoretical maximum force is 318 kgf at 1.0 MPa. The air port size is G3/8.
An external stop screw shortens the extend stroke by up to 75 mm on-site, giving a usable extend range of 425-500 mm while the retract end remains fixed. This mechanism only sets the end position; it does not lock the load. If air pressure drops, the piston drifts, so you need an external rod lock or pilot-operated check valve for load holding.
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