
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X450-40 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 450mm 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 hard-anodized aluminium barrel keeps the assembly light while housing a 29 mm adjustable air cushion at each end. A G3/8 port feeds the double-acting double-rod piston, which drives a 20 mm rod with an M18x1.5 thread.
The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, giving a usable range of 410-450 mm without changing the cylinder itself. This on-site tuning is ideal for dialling in exact end positions. Note that this SKU lacks a magnet and cannot take a CMSE or DMSE sensor.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X450-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 450 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). |
| ×450 | 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.
Dial in the exact extend reach of a sorting diverter on-site using the 40 mm window, ensuring packages hit the correct lane without re-mounting the actuator.
Adjust the extend end position by up to 40 mm to accommodate different material thicknesses in a light-duty pressing or clamping station.
Fine-tune the stopping point of a pallet on a conveyor line by shortening the stroke from 450 mm down to 410 mm as needed for various pallet sizes.
The 40 mm adjuster window is highly useful when you need to fine-tune the extend end position on-site or standardise a shared spare across slightly different stroke variants. JSIJ mounting options include FA, LB, TC, TCM1 and TCM2. Because the 450 mm stroke is long, always use an external guide rail to prevent rod bending and absorb side loads. Remember this non-magnet version cannot host position sensors.
Quick checklist
This 63 mm bore cylinder uses a G3/8 port.
The nominal 450 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 40 mm, giving a usable range of 410-450 mm. The retract end remains fixed. This mechanism only sets the end position; it does not lock the load, so use an external rod lock or pilot-operated check valve for load holding.
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