
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X225-30S 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 aluminum barrel keeps the assembly light while handling serious work.
The -30 code means an external adjuster can shorten the 225 mm extend stroke on-site by up to 30 mm, giving a usable range of 195 to 225 mm without swapping the cylinder. Because this is an -S SKU, a built-in piston magnet lets you drop CMSE or DMSE reed and electronic switches directly into the side grooves. Air connects via a G1/2 port, and adjustable air cushions at both ends absorb the impact of moving masses at the end of travel.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X225-30S |
|---|---|
| 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 195 to 225 mm extend reach on a light assembly press without machining new spacers, using the external adjuster to set the precise contact point.
Act as a heavy-duty stop gate on a conveyor line, leveraging the 100 mm bore thrust and adjusting the stroke window to match varying pallet depths on site.
Lower a 200 kg fixture smoothly using the built-in air cushions, with the -S magnet confirming the lower end position for the PLC before the next cycle.
When sizing this 100 mm bore model against its neighbours, stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N, while stepping up to a 125 mm bore raises it to 6136 N. The adjustable stroke is ideal when you need to fine-tune the extend end position on the machine or want a single shared spare across several stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet supports CMSE/DMSE sensors. For any stroke at or over 300 mm, always use a guide rail to prevent rod side-loading and premature seal wear.
Quick checklist
The theoretical maximum force is 801 kgf at 1.0 MPa. The air port size is G1/2.
The 225 mm nominal stroke is the maximum length. The external stop screw lets you shorten the extend stroke by up to 30 mm on-site, giving a usable extend range of 195 to 225 mm. The retract end is fixed. This mechanism only sets the end position; it does not lock the load.
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