
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X350-100 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 350mm 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.
It uses an extruded hard-anodized aluminium barrel and is noticeably shorter than an ISO 15552 cylinder of the same bore. The G1/2 port handles the air flow for its 30-800 mm/s speed range.
The -100 code means an external adjuster can shorten the extend stroke on-site by up to 100 mm, giving a usable 250-350 mm forward travel while the retract end stays fixed. You can fine-tune the end position without swapping the cylinder. This plain SKU lacks a magnet and cannot take a CMSE/DMSE sensor.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X350-100 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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). |
| ×350 | 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 250-350 mm extend contact point on a light press without machining new hard stops.
Raise 200 kg platforms vertically, relying on the 33 mm adjustable cushions to decelerate the load smoothly.
The adjustable stroke is ideal for sharing a spare across stroke variants or tuning end positions on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the 350 mm stroke is long, use an external guide to prevent rod bending and side loads. Remember this plain version cannot take a sensor.
Quick checklist
It pushes 3927 N and pulls 3574 N at 0.5 MPa. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
An external stop screw lets you shorten the extend stroke by up to 100 mm on-site, giving a usable range of 250-350 mm from the 350 mm nominal maximum. The retract end is fixed. This stop 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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