
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X450-75S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 450mm stroke, G1/2 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 hard-anodized aluminum profile barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder.
The -75 code means an external adjuster can shorten the extend stroke on site by up to 75 mm, giving a usable 375-450 mm range while the retract end stays fixed. You fine-tune the end position without swapping the cylinder. This -S variant includes a piston magnet for CMSE/DMSE sensors in the side grooves, and the air port is G1/2.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X450-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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 | 3525 N | 3525 N |
| 0.7 MPa | 4935 N | 4935 N |
| Max (@1.0 MPa) | 719 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). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×450 | 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 375-450 mm extend reach on a stamping or forming press without machining new spacers, using the external adjuster to hit the material precisely.
Act as an adjustable physical stop for 200 kg pallets on a conveyor, tweaking the stop distance by up to 75 mm as pallet sizes or downstream processes change.
Secure large workpieces in a machining fixture where the 450 mm reach is needed, but the final clamping position requires fine-tuning to accommodate part tolerances.
The adjustable window shines when you need to dial in a precise end position on-site or want one spare SKU to cover several stroke variants. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 450 mm, always support the load with an external guide to prevent rod bending and side-load wear. The -S magnet allows CMSE/DMSE switches for position confirmation.
Quick checklist
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical max force is 801 kgf at 1.0 MPa. The air port is G1/2, the rod is 32 mm with an M26x1.5 thread, and it has 33 mm adjustable cushions at both ends.
The nominal stroke is 450 mm, which is the maximum extend length. The external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 375-450 mm. The retract end is fixed. This stop sets the end position but does not lock the load; for holding a load on air loss, use an external rod lock or pilot-operated check valve.
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