
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X275-10S 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.
The extruded hard-anodized aluminium barrel leaves out external rods, making the body noticeably shorter than a same-bore ISO 15552 unit while retaining a G3/8 port and an M18x1.5 rod thread.
The -10 code defines an external adjuster that shortens the extend stroke by up to 10 mm on site, letting you fine-tune the end position from 265 to 275 mm without swapping the cylinder. The -S suffix adds a piston magnet for CMSE/DMSE sensors in the side grooves.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X275-10S |
|---|---|
| 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 to 275 mm extend position on a machining fixture to compensate for part tolerance variations without remounting the actuator.
Fine-tune the pusher reach on a conveyor diverter to ensure products seat correctly against the guide rail before the retract cycle.
Adjust the stop block distance on the fly for mixed pallet sizes, using the 10 mm window to avoid hard mechanical crashes.
The 63 mm bore hits a versatile middle ground. The adjustable stroke is ideal when you need to synchronize end positions across multiple stations or keep one spare cylinder for several stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The integrated -S magnet supports CMSE/DMSE switches. For this 275 mm stroke, guide the load to prevent rod side-loading and premature seal wear.
Quick checklist
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. This 63 mm bore cylinder uses a G3/8 air port and features a 29 mm adjustable air cushion at each end.
The nominal 275 mm stroke is the maximum length. The external adjuster lets you shorten the extend stroke by up to 10 mm on site, giving a usable range of 265 to 275 mm. The retract end remains fixed. This mechanism only sets the end position; it does not lock the load, so you need an external rod lock or pilot-operated check valve to hold a load on air loss.
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