
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 350mm stroke, G1/4 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.
Generating 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder brings on-site extend flexibility to long-stroke automation. The hard-anodized aluminium barrel omits tie rods entirely, yielding a footprint noticeably shorter and more compact than a same-bore ISO 15552 unit. It handles a safe working load of about 589 N, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
The external stop screw provides a 50 mm adjustment window, letting you fine-tune the usable extend stroke anywhere from 300 mm up to the 350 mm maximum without swapping the cylinder. A built-in piston magnet works with CMSE/DMSE switches in the side grooves for precise position sensing. Air connects via a G1/4 port, and adjustable air cushions at both ends manage end-of-stroke deceleration.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X350-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | 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 of a sorting diverter on-site to accommodate different package widths without machining new mounts.
Adjust the external stop screw by up to 50 mm to set multiple physical end-stop positions for a shelving interface in a compact storage cell.
Fine-tune the folding arm extension between 300 and 350 mm to handle varying carton profiles on a packaging line while retaining magnetic position feedback.
This 50 mm bore sits comfortably between the lighter 40 mm class, which offers 628 N of push at 0.5 MPa, and the larger 63 mm class, delivering 1559 N. Choose the 50 mm when your application demands roughly 589 N of safe working force. The 50 mm adjustable window is ideal for sharing a single spare cylinder across multiple stroke variants or dialing in final end positions during machine commissioning. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the stroke is 350 mm, you must support the load with external guides to prevent rod bending and side-load damage. The -S suffix confirms the magnet is present for CMSE/DMSE sensors.
Quick checklist
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it delivers 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. The air port size is G1/4.
An external stop screw lets you shorten the extend stroke on-site by up to 50 mm. The usable extend range is 300 to 350 mm, with 350 mm being the maximum. The retract end remains fixed. This mechanism 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 on air loss.
Genuine AirTAC parts produced by AirTAC factory.
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