
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-100 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 250mm 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 brings heavy-duty actuation into a compact footprint that is noticeably shorter than a same-bore ISO 15552 unit. The hard-anodized aluminium barrel contains no external tie rods, keeping the body clean and rigid. A G3/8 port supplies air, while adjustable 29 mm cushions absorb kinetic energy at both ends.
The -100 suffix means an external stop screw lets you shorten the extend stroke on-site by up to 100 mm, dropping the usable forward travel from the 250 mm maximum down to 150 mm without changing the cylinder itself. This on-site end-position tuning is ideal for shared spares across stroke variants. In practical terms it handles about 1508 N of real work, which translates to lifting roughly 128 kg vertically. Note this SKU lacks a magnet, so it cannot take CMSE or DMSE sensors.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X250-100 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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). |
| ×250 | 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 250 mm extend stroke down to 180 mm on-site to perfectly match a new conveyor lane width without swapping the actuator.
Apply 2513 N of push force at 0.5 MPa to hold parts, using the external adjuster to set the exact clamping depth for different material thicknesses.
Use the 100 mm shortening window to dial in the stopping distance for mixed box sizes on a packaging line, ensuring gentle but firm contact.
When sizing, the 63 mm bore offers 1559 N push at 0.5 MPa, whereas stepping up to the 100 mm bore yields 3927 N, so the 80 mm at 2513 N sits squarely in the heavy-duty mid-range. The adjustable stroke shines when you need to fine-tune the extend end position on the machine or want one spare to cover several stroke lengths. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the 250 mm stroke is substantial, always guide the load to prevent side-load wear on the rod seal. If you need position feedback, select the -S magnet version for CMSE or DMSE switches.
Quick checklist
At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa it pushes 3518 N and pulls 3175 N. The theoretical maximum force is 513 kgf at 1.0 MPa. It uses a G3/8 air port.
The nominal 250 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke by up to 100 mm on-site, giving a usable forward travel range of 150 to 250 mm. The retract end is fixed. This mechanism sets the end position and is not a load lock.
Genuine AirTAC parts produced by AirTAC factory.
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