What are welders and a vertical grinder? A vertical grinder is an industrial milling machine which grinds metal in a smooth, even, unbroken motion. They are most commonly used for grinding curved surfaces of metal into smooth patterns, such as flat metal. They can also grind through various types of sheet metal, although their greatest strength comes from their ability to grind large, solid elements of metal.
Welders are basically power tools which transfer heat from a hot welding element to the workpiece with the help of a flame. In addition to welding, they have the ability to cut, sand, drill and grind. A vertical grinder has been designed specifically to meet the diverse requirements of fabricating heavy-duty cutting applications. Available in both single and twin model types, they are available in numerous different configurations for different work pieces and cutting requirements. There are many different industries where welders are used and in various applications. This includes cutting down pieces of heavy steel to the required dimensions, sanding and polishing them, building frames, metal casting, forming metal into desired shapes and the list goes on.
The primary driving force behind the operation of these powerful machines is the physical principle of centrifugal force. When the vertical grinder rotates at a high RPM, it compresses the air in the rotor and draws it towards the stationary blade. The spinning action of the grinding wheel draws out the molten alloy from the billet with much greater speed compared to any other method. Grinding speeds of up to 2021 rpm are possible and depend largely on the weight of the work piece to be printed.
The physical structure of a vertical grinder consists of two main components: the blade and the stationary piece or chuck. The blade is typically made from high-carbon steel or similar alloys that have a higher melting point than their alloy counter parts. The carbon content also ensures greater strength, flexibility, and heat resistance. However, the blade need not be sharp if the manufacturer prefers lesser distortion and a better, more even work in the vertical grinder. A carbon blade with carbide slots that have been properly prepared and welded onto the steel chuck can provide optimal performance at lower temperatures and maximize efficiency.
With this said, there is also another option available in the vertical grinder and that is “one setup” vertical grinder. With this equipment, the chuck and blade of the machine are connected only through a single set of blades. This gives the user the ability to use one setup chuck for most of the operations and to exchange the blade for a new one whenever it’s necessary to change the type of work piece being processed. This is perfect for shops that need to replace damaged or worn out blades but cannot afford to replace the entire Vertical Grinder or else the operation will come to a stop.
For users who prefer to use and maintain the Vertical Grinder at its full potential, the use of a vertical grinder coupled with proper maintenance and usage of lubrication and cleaning supplies ensure less distortion, greater productivity, and excellent accuracy. A good and oiled rotating mechanism also minimizes chatter as well as cuts down on slop and distortion. Less slop equals less distortion equals smoother and faster turning which leads to increased productivity. Likewise, a properly sized and installed clamping force can help prevent force slippage and maximize accuracy and consistency. It’s time to upgrade to a better, more accurate and efficient vertical grinder.