
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X350-30 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.
The extruded hard-anodized aluminium barrel omits external rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. It uses a G1/2 port and a 32 mm rod with an M26x1.5 thread.
The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, giving a usable forward range of 320-350 mm while the retract end remains fixed. You can fine-tune the end position without swapping the cylinder, and the 33 mm adjustable air cushions at both ends decelerate the payload smoothly. Note that this SKU lacks a magnet and cannot take a CMSE or DMSE sensor; for that you need the -S variant.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X350-30 |
|---|---|
| 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 320-350 mm clamping reach on a fixture press using the external adjuster without remounting the entire actuator.
Set a precise product stop position on a heavy packaging line, fine-tuning the 30 mm window to accommodate varying box sizes.
The 30 mm adjuster is ideal when you need to share one spare across slight stroke variants or trim the end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the 350 mm stroke is long, always use an external guide to prevent rod bending under side loads. Remember that a plain cylinder drifts on air loss; the cushion only decelerates, so fit an external rod lock or pilot-operated check valve if you need to hold a load.
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 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 350 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, yielding a usable range of 320-350 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load.
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