
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X75-75 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.
The hard-anodized aluminum profile barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder.
The external adjuster lets you shorten the extend stroke on-site by up to 75 mm, meaning the usable extend range is 0-75 mm while the retract end remains fixed. It connects via a G1/2 port and uses a 32 mm rod with an M26x1.5 thread. This SKU lacks a magnet, so it cannot take CMSE or DMSE sensors; you would need the -S variant for position detection.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X75-75 |
|---|---|
| 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.
Fine-tune the 0-75 mm extend endpoint on-site to set precise pressing depth for bearing insertion without changing the physical cylinder mount.
Act as a heavy-duty stopping gate on a conveyor, where the external adjuster dials in the exact protrusion distance to accommodate different product widths.
Push heavy 200 kg pallets into a machining cell, using the adjustable stroke to compensate for mechanical wear or fixture changes over time.
The adjustable-stroke mechanism is ideal for sharing a single spare across multiple stroke variants or fine-tuning the extend endpoint without swapping the cylinder. You can mount it using basic, FA, LB, TC, TCM1, or TCM2 brackets. Because the nominal stroke is only 75 mm, side-load guide requirements are minimal, but always guide the rod for heavy 100 mm bore loads. Remember that this non-magnet SKU cannot support sensors.
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 maximum force is 801 kgf at 1.0 MPa. This 100 mm bore cylinder uses a G1/2 port.
The nominal 75 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable extend range of 0-75 mm. The retract end is fixed. This mechanism sets the end position and is not a load lock; use an external rod lock or pilot-operated check valve to hold a load.
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