
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X400-10 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 400mm 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 G3/8 port and M18x1.5 rod thread keep pneumatic flow and mounting standard for this bore size.
The JSIJ63X400-10 uses an external stop screw to shorten the extend stroke on-site by up to 10 mm, giving a usable extend range of 390 to 400 mm while the retract end remains fixed. You can fine-tune the end position without physically swapping the cylinder, which is ideal for shared spares across slightly different stroke variants. Note that this specific SKU lacks a magnet and cannot take a CMSE or DMSE sensor; adding the -S variant enables switch readiness. Furthermore, the adjustable air cushions at both ends only decelerate the piston near stroke end—they do not lock the load, so fit an external rod lock or pilot-operated check valve if you need to hold a vertical position on air loss.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X400-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 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). |
| ×400 | 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.
Fine-tune the 390 to 400 mm extend reach on-site to perfectly align a diverter gate with varying product widths without changing the cylinder.
Stock one cylinder for multiple machines needing slightly different extend lengths, adjusting the stop screw on the floor to match each fixture.
The adjustable stroke proves invaluable when you need on-site end-position tuning or want a single shared spare across multiple 390 to 400 mm stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because this is a 400 mm stroke, you must support the load with external guides to prevent rod bending and premature seal wear from side loads. Finally, this non-S SKU cannot accept a position sensor; choose the -S version if your application requires CMSE or DMSE magnetic switches.
Quick checklist
The theoretical maximum force is 318 kgf at 1.0 MPa. It features a 63 mm bore, 400 mm stroke, G3/8 port, M18x1.5 rod thread, and 29 mm adjustable air cushions at both ends.
The -10 code means an external stop screw lets you shorten the extend stroke by up to 10 mm on-site. The usable extend range is 390 to 400 mm, with the 400 mm nominal stroke being the maximum and the retract end fixed. This mechanism sets the end position but does not lock the load.
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