
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X250-10S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 250mm 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 extruded hard-anodized aluminium barrel omits tie rods entirely, leaving a clean profile that is physically shorter and more compact than a same-bore ISO 15552 unit. A G1/2 port feeds the chambers, while adjustable air cushions of 33 mm at each end absorb the impact of heavy moving masses.
The -10 code means an external stop screw lets you shorten the extend stroke on-site by up to 10 mm, giving a usable forward travel of 240 to 250 mm without swapping the cylinder. Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed and electronic switches straight into the side grooves for exact end-position detection.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X250-10S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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). |
| ×250 | 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 bottoming position of a 200 kg press fit within a 10 mm window without machining a new hard stop.
Keep one cylinder on the shelf and adjust the extend stroke from 240 to 250 mm to service multiple transfer stations.
Fine-tune the retract stop face for varying pallet widths on a heavy 100 mm bore packaging line.
The 10 mm adjustable window is ideal for sharing one spare cylinder across several stroke variants or fine-tuning a hard stop on the machine. You can mount it via basic, FA, LB, TC, TCM1, or TCM2 brackets. Since the 250 mm stroke exceeds 300 mm only marginally, keep the load guided to prevent side-load wear on the 32 mm rod and M26x1.5 thread. The -S magnet equips it for CMSE/DMSE sensors; a plain no-S SKU cannot take a sensor at all.
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 is 801 kgf at 1.0 MPa. It uses a G1/2 port.
An external stop screw lets you shorten the extend stroke on-site by up to 10 mm, giving a usable forward travel of 240 to 250 mm. The nominal 250 mm stroke is the maximum, and the retract end is fixed. The stop sets the end position; it is not a load lock.
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