
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X175-40S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 175mm 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 integrated -S magnet allows CMSE/DMSE sensors to drop directly into the side grooves for precise position detection.
A 40 mm external adjuster window lets you shorten the extend stroke on-site from the 175 mm maximum down to 135 mm without swapping the cylinder, while the retract end remains fixed. The unit operates on a G1/2 port, runs at 30-800 mm/s, and relies on 33 mm adjustable air cushions at both ends to decelerate the load smoothly.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X175-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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). |
| ×175 | 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 insertion depth of bearings using the 40 mm extend window, avoiding physical machine stops.
Adjust the retract distance of a sorting gate on-site to handle changing package sizes without re-mounting hardware.
Fine-tune the stopping position of heavy pallets on a roller line by shortening the 175 mm stroke up to 40 mm.
When sizing this 100 mm bore, stepping down to an 80 mm cylinder drops the 0.5 MPa push force to 2513 N, whereas moving up to a 125 mm bore increases it to 6136 N. The 40 mm adjustable window is ideal for fine-tuning the extend end position on-site or sharing a single spare across multiple stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The included -S magnet supports CMSE/DMSE switches. Because the 175 mm stroke is relatively short, side-load stress is minimal, but always guide the rod for any stroke reaching 300 mm or more.
Quick checklist
The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a G1/2 port and a 33 mm adjustable cushion at each end.
The 175 mm nominal stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, giving a usable range of 135 to 175 mm. The retract end is fixed, and this stop only sets the end position; it does not hold the load on air loss.
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