
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X350-10 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 350mm 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 stop screw provides a 10 mm extend-shortening window, letting you dial in the end position anywhere between 340 and 350 mm without swapping the actuator. Its extruded hard-anodized aluminium barrel drops the tie-rod exterior entirely, making the body noticeably shorter and more compact than a same-bore ISO 15552 unit.
The G3/8 port feeds the 20 mm rod, and adjustable 29 mm air cushions decelerate the piston at both ends. Note that this specific SKU lacks a magnet and cannot accept CMSE or DMSE sensors; you would need the -S variant for position detection. Furthermore, the cushion only slows the piston, so fit an external rod lock or pilot-operated check valve if you need to hold a load on air loss.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X350-10 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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). |
| ×350 | 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 340 to 350 mm extend reach of a diverter gate on-site to match varying package widths without machining new mounts.
Dial in the exact bottoming position of a light assembly press within the 10 mm window to accommodate different material thicknesses.
Adjust the external stop screw to precisely set the stopping face for mixed pallet sizes on a packaging line.
When sizing this actuator, stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, while stepping up to an 80 mm bore raises it to 2513 N. The 10 mm adjustable window is ideal for sharing a single spare across multiple slightly different stroke variants or fine-tuning a final end position on the machine. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because the 350 mm stroke creates a long lever arm, always use an external guide rail to prevent rod bending and side-load damage. Finally, remember this non-magnetic SKU cannot host a reed switch; select the -S version if your control system requires CMSE or DMSE sensor feedback.
Quick checklist
This 63 mm bore cylinder pushes 1559 N and pulls 1402 N at 0.5 MPa. At 0.7 MPa it pushes 2182 N and pulls 1962 N. The theoretical maximum force is 318 kgf at 1.0 MPa. It uses a G3/8 air port, a 20 mm piston rod, and features 29 mm adjustable air cushions at both ends.
The nominal 350 mm stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 10 mm on-site, giving a usable range of 340 to 350 mm. The retract end remains fixed. This mechanism only sets the end position and does not lock the load.
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