
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X350-75S 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 hard-anodized aluminium extruded barrel keeps the assembly light while housing a 32 mm rod, M26x1.5 end thread, and 33 mm adjustable air cushions at both ends.
The -75S code marks a 75 mm external adjuster window and an integrated piston magnet. You can shorten the extend stroke on-site from the 350 mm maximum down to 275 mm without swapping the cylinder, letting you fine-tune the end position mechanically. The retract end remains fixed. The built-in magnet supports CMSE/DMSE sensors that drop directly into the side grooves for precise position detection.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X350-75S |
|---|---|
| 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.
Raises 200 kg platforms vertically and uses the 75 mm adjuster to dial in the exact raise height for different pallet stacks without changing the cylinder.
Pushes heavy product lines across belts at 0.5 MPa, using the 275-350 mm extend window to accommodate varying lane widths on the fly.
Drives a stacker arm with a 32 mm rod, relying on the 33 mm cushions to decelerate the 350 mm stroke smoothly at the extend end.
The adjustable stroke is invaluable when you need to share one spare cylinder across multiple stroke variants or dial in a final end position on-site. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. The -S magnet allows CMSE/DMSE switch integration. Because the 350 mm stroke is substantial, always support the load with an external guide to prevent rod bending and side-load damage.
Quick checklist
Its theoretical maximum force is 801 kgf at 1.0 MPa.
An external stop screw lets you shorten the extend stroke on-site by up to 75 mm. The usable extend range is 275-350 mm, with the 350 mm nominal stroke being the maximum and the retract end fixed. This mechanism sets the end position and is not a load lock.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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