
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-100S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 350mm 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.
It is a JIS-standard profile cylinder machined from extruded hard-anodized aluminum, making it shorter and more compact than a same-bore ISO 15552 unit. The integrated G3/8 port and M18x1.5 rod thread keep pneumatic and mechanical connections straightforward.
The -100S code means a built-in magnet for CMSE/DMSE sensors and an external adjuster that shortens the extend stroke by up to 100 mm on site. You get a usable extend range of 250-350 mm from the 350 mm nominal maximum, while the retract end stays fixed. The 29 mm adjustable air cushions at both ends decelerate the load smoothly, though an external rod lock or pilot-operated check valve is required if you need to hold a load on air loss.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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). |
| ×350 | 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 250-350 mm extend reach for clamping cast parts of varying widths without retooling the entire fixture.
Fine-tune the push-off distance on a transfer line to accommodate different box sizes using the external stop screw.
Set precise pallet halt points on a conveyor by adjusting the extend stroke on site, backed by reliable CMSE/DMSE sensors.
The JSIJ adjustable-stroke mechanism shines when you need to fine-tune the extend end position without swapping cylinders, or when you want a shared spare across stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. The -S suffix equips the side grooves for CMSE/DMSE reed or electronic switches. Because the 350 mm stroke creates leverage, always support the rod against side-load bending with an external linear guide.
Quick checklist
This 63 mm bore cylinder pushes 1559 N and pulls 1402 N at 0.5 MPa. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. It uses a G3/8 port and features a 29 mm adjustable air cushion at each end.
The external adjuster lets you shorten the extend stroke on site by up to 100 mm. With the 350 mm nominal maximum stroke, your usable extend range is 250-350 mm. The retract end is fixed, and the stop sets the end position but does not lock the load.
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