
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X225-40 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 225mm 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 houses a 32 mm rod and uses a G1/2 port. An external stop screw lets you trim the extend stroke on site by up to 40 mm, giving a usable forward travel of 185 to 225 mm without swapping the actuator.
This on-site adjustability means you can fine-tune the end position after mounting, which is ideal for dialling in a shared spare across slightly different machine variants. The retract end remains fixed. Note that this specific SKU lacks a magnet, so it cannot take CMSE or DMSE sensors without specifying the -S variant.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X225-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 225 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). |
| ×225 | 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 185 to 225 mm extend position on a forming press without machining new spacers, using the 40 mm external stop screw to fine-tune the contact point.
Keep one actuator in stock for multiple 100 mm bore machines, adjusting the forward stroke down by up to 40 mm on site to match various fixture lengths.
The 40 mm adjustable window is a major advantage if you need to tune the end position on-site or want one spare cylinder to cover several stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the 225 mm stroke exceeds 300 mm only marginally, side-load guides are recommended for any longer custom strokes to prevent rod bending. Remember that this non-S SKU cannot host magnetic sensors.
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. This 100 mm bore unit features a 32 mm rod and a G1/2 air port.
The nominal 225 mm stroke is the maximum forward travel. An external adjuster screw lets you shorten the extend stroke on site by up to 40 mm, yielding a usable range of 185 to 225 mm. The retract end is fixed. This mechanism only sets the end position and does not lock the load; you need an external rod lock or pilot-operated check valve to hold a load against air loss.
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