
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-30 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm 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.
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder occupies a shorter envelope than a same-size ISO 15552 unit while integrating a 30 mm extend-shortening window. The hard-anodized aluminum extruded barrel keeps the assembly light, and the G3/8 port feeds the 25 mm rod to generate 3518 N at 0.7 MPa. A plain SKU like this cannot accept a magnetic sensor; you need the -S variant for CMSE/DMSE switches.
The external adjuster lets you trim the usable extend stroke down from the 350 mm maximum to 320 mm on site, providing fine end-position tuning without swapping the cylinder. In practice it handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin. Note that the adjustable stop sets the end position and decelerates the load, but it does not lock the rod on air loss, requiring an external pilot-operated check valve for held loads.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M22×1.5 |
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | 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.
Dial in the exact 320 to 350 mm extend reach on-site to push varying carton sizes onto a transfer lane without re-mounting the actuator.
Use the 30 mm external adjuster to set the precise bottoming height for a light-duty pressing or stamping task, accommodating different material thicknesses.
Shorten the extend stroke on the fly to interface with multiple pallet widths, leveraging the 2513 N push force to index loads smoothly.
Size this 80 mm bore against the 63 mm option, which supplies 1559 N of push at 0.5 MPa, or step up to the 125 mm bore for 6136 N if your payload exceeds the 513 kgf maximum. The 30 mm adjuster is ideal when you need to share a single spare cylinder across several stroke variants or fine-tune the extend endpoint on the machine. Mounting choices include FA, LB, TC, TCM1, and TCM2 brackets. Because this is a non-magnet SKU, position sensing is not possible without moving to the -S version. With a 350 mm stroke, always support the load with external guides to prevent rod bending and premature seal wear from side loads.
Quick checklist
This 80 mm bore cylinder uses a G3/8 air port and a 25 mm rod. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum force of 513 kgf at 1.0 MPa.
The nominal 350 mm stroke is the maximum extend length. An external stop screw lets you shorten the extend stroke by up to 30 mm on-site, giving a usable range of 320 to 350 mm. The retract end remains fixed, and this mechanism only sets the end position, it does not hold the load without live air pressure.
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