
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-75 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 actuator brings on-site extend tuning to heavy automation. The external stop screw provides a 75 mm adjustment window, letting you shorten the 350 mm maximum extend stroke down to 275 mm without swapping the cylinder. Because the retract end remains fixed, you set the exact extend endpoint right at the machine. This hard-anodized aluminum profile body is notably shorter than a same-bore ISO 15552 unit, saving valuable machine space.
In practical terms, it handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin. The G3/8 port feeds the 30-800 mm/s speed range, and adjustable 29 mm cushions decelerate the load 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 decelerates the load—it does not lock it, 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 JSIJ80X350-75 |
|---|---|
| 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 ejection length using the 75 mm window to clear varying die heights without reprogramming the machine cycle.
Adjust the extend stroke on-site from 350 mm down to 275 mm to deflect different package widths on a shared sorting line.
Set the stopping position precisely for mixed pallet depths, relying on the 2513 N push force to halt heavy incoming loads.
When sizing this 80 mm bore, compare it against the neighbouring 63 mm and 100 mm options. The 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore steps up to 3927 N, so choose the 80 mm when your load sits in that middle ground. The 75 mm extend-shortening window is highly useful for sharing a single spare cylinder across machines that need slightly different end positions, letting you fine-tune the stroke on the floor. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because the 350 mm stroke is fairly long, always use an external guide rail to prevent rod bending and side-load damage. Remember that this non-magnet version cannot support position sensing.
Quick checklist
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa it delivers 3518 N push and 3175 N pull. The theoretical maximum force is 513 kgf at 1.0 MPa.
The nominal 350 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke by up to 75 mm on-site, giving a usable extend range of 275-350 mm. The retract end position stays fixed.
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