
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X450-10S 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 external adjuster lets you shorten the extend stroke by up to 10 mm, giving a usable range of 440-450 mm while the retract end stays fixed. You can fine-tune the end position without physically swapping the cylinder. Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 unit. The integrated -S magnet supports CMSE/DMSE sensors in the side grooves.
It uses a G3/8 port, an M18x1.5 rod thread, and 29 mm adjustable air cushions at both ends. Because 450 mm is a long stroke, external guides are recommended to prevent rod bending under side loads. Note that the cushions only decelerate the piston; 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.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X450-10S |
|---|---|
| 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.
Dials in the exact 440-450 mm push-off distance for parts moving to a secondary machining station, using the adjuster to compensate for fixture wear.
Acts as an adjustable physical stop for inbound pallets, allowing 10 mm of on-site stroke reduction to avoid crushing delicate packaging.
When sizing this 63 mm model, stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, whereas stepping up to an 80 mm bore raises it to 2513 N. The 10 mm adjustable window is ideal for sharing a spare across stroke variants or dialing in a precise end position on-site. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. The -S suffix ensures you have the magnet for CMSE/DMSE switches. Since the stroke is 450 mm, always use external guides to manage side loads and protect the rod from bending.
Quick checklist
The theoretical maximum force is 318 kgf at 1.0 MPa. This 63 mm bore model uses a G3/8 port.
The nominal 450 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 10 mm, yielding a usable range of 440-450 mm. The retract end remains fixed, and this mechanism sets the end position rather than locking the load.
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