
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X500-50S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 500mm 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 assembly light, and the G1/2 port feeds a 32 mm rod threaded M26x1.5.
The -50S code means an external stop screw lets you trim the extend stroke on-site from 500 mm down to 450 mm without swapping the cylinder, leaving the retract end fixed. A built-in magnet works with CMSE/DMSE sensors in the side grooves, and 33 mm adjustable cushions absorb end-impact. The stop sets end position only; it is not a load lock, so fit an external rod lock or pilot check valve if you need to hold a suspended load.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X500-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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). |
| ×500 | 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.
Trim the 500 mm extend stroke down by 50 mm on-site to dial in the exact contact point on a forming press without machining a new stop.
The 50 mm adjuster window is ideal for sharing one spare cylinder across several stroke variants or fine-tuning a tooling touch point on the floor. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE switches. Because the 500 mm stroke is long, always use an external guide rail to prevent rod bending and side-load damage.
Quick checklist
At 0.5 MPa this 100 mm bore cylinder 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. It uses a G1/2 port and a 32 mm rod.
The nominal extend stroke is 500 mm, but an external stop screw lets you shorten that by up to 50 mm on-site, giving a usable range of 450 to 500 mm. The retract end remains fixed. The -S indicates a built-in magnet for CMSE/DMSE sensors.
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