
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X800-40 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 800mm 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 barrel keeps the build clean and rigid, while the G1/2 port handles the air volume needed for dynamic cycling. A 32 mm rod and M26x1.5 thread carry the load.
The -40 code means an external stop screw lets you trim the extend stroke on-site by up to 40 mm, giving a usable forward travel of 760 to 800 mm without swapping the cylinder; the retract end stays fixed. Note this plain SKU lacks a magnet, so it cannot take CMSE/DMSE sensors, and the adjustable cushion only decelerates the piston—it will not hold a load on air loss.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X800-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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). |
| ×800 | 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.
Trimming the 800 mm extend down to 760 mm on-site lets operators set precise press contact without machining a new stop.
Keep one unit as a floor spare for 760 to 800 mm stroke machines, using the adjuster to match various equipment lengths instantly.
Stepping down to an 80 mm bore drops the 0.5 MPa push to 2513 N, while the larger 125 mm bore raises it to 6136 N, so the 100 mm size is the right middle ground for loads near 2400 N. The adjustable stroke shines when you need to fine-tune an end position across multiple stations or keep one spare for several stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the 800 mm stroke is long, always use an external guide to prevent rod bending and side loads. This non-magnet SKU cannot accept sensors; you need the -S version for CMSE/DMSE switches.
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. It uses a G1/2 port, a 32 mm rod, and M26x1.5 rod thread.
An external stop screw lets you shorten the extend stroke by up to 40 mm on-site. The usable extend range is 760 to 800 mm, with 800 mm being the maximum. The retract end is fixed, and the stop only sets position—it does not lock the load.
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