Casting crane wheel has a wide range of wearparts and components that are too large, complicated, intricate or otherwise unsuitable for the forging process. The advantages of casting include:
· No real upper size limit in casting weight.
· Large range of alloy choices.
· As forgings remain solid, custom alloys are far more difficult to get into production whereas with cast alloys including Chrome, Nickel and Moly can be added at the molten stage.
· Tooling is often less expensive than forge dies.
· Smaller production [runs" required.
· Complicated/complex parts are no problem.
Bridge Crane Wheels,Wheeled Gantry Crane,Demag Crane Wheels,Demag Wheel Block XINXIANG DEGONG MACHINERY CO., LTD. , https://www.degongcrane.com
1, small and lightweight, easy to disassemble and repair, and can be installed in any position.
2, the structure is simple and compact, the operating torque is small, and the 90° rotation is quick to open.
3, the flow characteristics of the linear trend, good regulation performance.
4. The connection between the butterfly plate and the valve stem adopts a non-pin structure to overcome possible internal leakage points.
5, according to user requirements butterfly board spray coating, such as nylon or polytetrafluoroethylene.
6, the valve can be designed for flange connection and clip connection.
7, the drive mode can choose manual, electric or pneumatic.
8, seals can be replaced, and sealed reliably to achieve two-way seal.
9. The spherical shape of the outer circle of the butterfly plate improves the sealing performance and prolongs the service life of the valve. The zero leakage is still maintained when the pressure is more than 50,000 times.
9 characteristics of pneumatic butterfly valve: