
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X350-50 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 350mm 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 aluminum barrel leaves out external rods, making the body noticeably shorter and more compact than a same-bore ISO 15552 unit. Air connects via a G1/2 port.
The -50 code means an external stop screw lets you shorten the extend stroke on-site by up to 50 mm, giving a usable range of 300 to 350 mm while the retract end stays fixed. You can fine-tune the end position without changing the cylinder itself. This SKU has no magnet and cannot take a CMSE or DMSE sensor. A plain cylinder does not hold load on air loss; the 33 mm adjustable cushions only decelerate, so fit an external rod lock for held loads.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X350-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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). |
| ×350 | 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 300 to 350 mm extend reach on a pressing station without swapping cylinders, absorbing material thickness variations.
Act as a robust pallet stop gate where the external adjuster allows precise end-position tuning to match different pallet heights safely.
The adjustable stroke is ideal when you need to tune the end position on-site or want a shared spare across slightly different stroke variants. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because the 350 mm stroke is long, always support the rod against side-load bending and use an external guide. Without the -S suffix, this model lacks a magnet and cannot host position 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. It uses a G1/2 port and a 33 mm adjustable cushion at both ends.
The 350 mm nominal stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 300 to 350 mm. The retract end is fixed. This mechanism sets the end position and does not lock the load.
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