
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X175-20 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 175mm 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 profile barrel keeps the build rigid without external rods. Air connects via a G1/2 port.
The -20 code means an external stop screw lets you shorten the extend stroke on-site by up to 20 mm, giving a usable range of 155 to 175 mm. You fine-tune the end position without swapping the cylinder, while the retract end stays fixed. This plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor. Note that the adjustable stop sets position only; it is not a load lock, so fit an external rod lock or pilot-operated check valve if you need to hold a load against air loss.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X175-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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). |
| ×175 | 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 155 to 175 mm extend reach on a stamping station without machining new spacers or changing the whole actuator.
Stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N, whereas a 125 mm bore raises it to 6136 N. The 100 mm size hits a sweet spot for medium-heavy machinery. The -20 mm adjuster is ideal when you need on-site end-position tuning across shared spare cylinders with slightly different stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a non-magnet SKU, position sensing is unavailable; add the -S variant for CMSE/DMSE switches. For any stroke at or above 300 mm, always guide the load to prevent side-load damage to the front cover.
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. The air port size is G1/2.
The nominal 175 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 20 mm, yielding a usable extend range of 155 to 175 mm. The retract end remains fixed, and this stop is for positioning only, not load holding.
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