
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X600-20S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 600mm 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 600 mm stroke remains the maximum travel, yielding a usable 580-600 mm extend range, while the retract end stays fixed. Built with a hard-anodized aluminum barrel and a G3/8 port, the body is noticeably shorter and more compact than an equivalent ISO 15552 cylinder.
Because this SKU carries the -S suffix, it includes a built-in piston magnet for CMSE or DMSE switches that mount directly into the side grooves. The adjustable air cushions provide 29 mm of deceleration at each end. Remember that the cushion only slows the piston near the end of travel; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a load securely.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X600-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 600 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). |
| ×600 | 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 600 mm extend stop by up to 20 mm to perfectly align a diverter gate without machining new hard stops.
Use the adjustable extend window to set a precise clamping depth on parts of slightly varying widths on the same line.
The -20 mm adjustable window is highly useful for fine-tuning end positions on-site without swapping the cylinder, and it allows you to standardize one spare part across multiple stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE sensors for position feedback. Because the 600 mm stroke is quite long, always use external guides to prevent rod bending and manage side loads.
Quick checklist
The theoretical maximum force is 318 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke on site by up to 20 mm, giving a usable extend range of 580 to 600 mm. The nominal 600 mm stroke is the maximum travel, and the retract end remains fixed.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.