
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X275-10 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 275mm 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.
Built with an extruded hard-anodized aluminum barrel, the body is notably shorter and more compact than a same-bore ISO 15552 unit. The G3/8 port and 29 mm adjustable air cushions at both ends ensure smooth deceleration.
Because this specific SKU lacks the -S magnet option, it cannot accept CMSE or DMSE sensors for position detection. A plain adjustable-stroke cylinder also does not hold load on air loss; the cushions only decelerate the piston near the end of travel, so fit an external rod lock or pilot-operated check valve if you need to suspend a load safely.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 275 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). |
| ×275 | 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 265-275 mm extend contact point on a light assembly press without machining new hard stops.
Adjust the extend reach on-site to accommodate slightly different product widths on a packaging line diverter.
Set a precise upper travel limit for a 79 kg vertical lift gate, relying on the external stop to fine-tune the endpoint.
The 10 mm extend-shortening window is ideal for fine-tuning end positions on-site without swapping the cylinder, making it a versatile spare across slight stroke variants. Mounting choices include Basic, FA, LB, TC, TCM1, and TCM2. Since this is a non-magnetized SKU, position sensing is unavailable. For any stroke length at or above 300 mm, always guide the load to prevent excessive side-loading on the rod.
Quick checklist
The -10 indicates a 10 mm external adjuster window. The nominal 275 mm stroke is the maximum, but you can shorten the extend stroke on-site down to 265 mm to fine-tune the end position; the retract end remains fixed.
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