
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X75-50 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 75mm 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.
Its extruded hard-anodized aluminium barrel omits tie rods, making it shorter and more compact than a same-bore ISO 15552 unit. The G1/2 port feeds the 32 mm rod to generate 3574 N of pull force on the retract side.
The -50 code means an external adjuster can shorten the extend stroke on site by up to 50 mm. You get a usable extend range of 25 to 75 mm without swapping the cylinder. Note that this plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 75 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). |
| ×75 | 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 25 to 75 mm extend depth for seating bearings without machining custom spacers.
Act as an adjustable flight stop on a heavy conveyor, trimming the extend position by up to 50 mm as product sizes change.
The external adjuster is ideal for sharing one spare across stroke variants or fine-tuning the end position on-site. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Since the nominal stroke is only 75 mm, side-load stress is minimal, but always guide the load smoothly. Add the -S variant if you need CMSE or DMSE sensing.
Quick checklist
At 0.5 MPa it pushes with 3927 N and pulls with 3574 N. At 0.7 MPa the push is 5497 N and the pull is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a G1/2 port, a 32 mm rod, and M26x1.5 rod-end thread.
The 75 mm nominal stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, giving a usable range of 25 to 75 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load; use an external rod lock or pilot-operated check valve to hold a load against air loss.
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