
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X500-50 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 extrusion contains no external tie rods, yielding a clean exterior, while the G1/2 port handles the air volume needed for dynamic movement. An external stop screw lets you trim the extend stroke on-site by up to 50 mm, giving a usable range of 450 to 500 mm without swapping the cylinder.
The retract end remains fixed, and the adjustable air cushions at both ends absorb kinetic energy over a 33 mm travel. Because this specific SKU lacks a magnet, it cannot accept CMSE or DMSE sensors; adding the -S variant enables position detection. Note that the cushion only decelerates the piston, so an external rod lock or pilot-operated check valve is required to hold a load securely against air loss.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X500-50 |
|---|---|
| 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.
Dial in the exact 450 to 500 mm extend position on a heavy stamping press without machining new hard stops.
Adjust the extend reach on the fly to accommodate different pallet widths entering a high-force transfer line.
Actuate large material handling gates where the 100 mm bore provides the necessary push force and the stroke can be trimmed to clear obstructions.
The 50 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or fine-tuning the end position during machine commissioning. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because the 500 mm stroke creates a long lever arm, always use an external guide rail to prevent rod bending and side-load damage. This non-magnetic version cannot support sensors, so choose the -S variant if your control system requires CMSE or DMSE switches.
Quick checklist
The theoretical maximum force is 801 kgf at 1.0 MPa. It features a G1/2 port and a 32 mm piston rod.
The nominal 500 mm stroke is the maximum. An external adjuster screw lets you shorten the extend stroke on-site by up to 50 mm, yielding a usable range of 450 to 500 mm. The retract end is fixed, and this mechanism only sets the end position, it does not lock the load.
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