Choosing the Right Vertical Grinder
A vertical grinder, also known as a scroll grinder, is a specialized type of diamond-tipped grinder that is designed for use on countertops or other surfaces that are taller than it. Unlike the normal vertical grinders, which have to be mounted on the floor, the vertical grinders can be used in any location, as long as there is a flat surface to place them on. The most popular use for these types of grinder tools is in the home improvement industry. Usually, they are used to rough out patterns on countertops before cutting them. This allows a greater degree of control over the depth of cuts and eliminates the need to set stones or other devices into the work area.
The two main types of vertical grinder wheels are the offset style and the sliding-type. An offset wheel has the handle turned towards the user while the sliding-style is turned towards the user and counteracts the force applied by the grinding medium against the work surface. The two types of vertical grinder wheels have different methods of achieving the grinding motion. They generally either have two diamond grinding wheels attached at the front of the unit, or they have one fixed diamond wheel and two adjustable ones positioned on the side of the unit. The two types of grinding wheels also have different diamond grinding center sets. Some are fitted with center centers that are adjustable and are used for heavier materials such as granite or marble; other centers are fixed and cannot be changed out.
The main advantage to owning a vertical grinder is the increased productivity that it affords. With a regular diamond-tipped wheel, there is a greater amount of back and forth movement that causes undue wear on the grinding equipment. This causes a decrease in efficiency in the overall functioning of the equipment. It also increases the potential for material distortion, which can lead to errors in material specification and cut depth. However, with the vertical grinding wheel, there is no chance of back and forth movement, which eliminates the potential for material distortion and an increase in production.
Another common type of vertical grinder is the face grinding spindle. Face grinders essentially have a slot in the workpiece that is located directly over the workpiece, which cuts across the surface of the workpiece. Face grinders can greatly increase the cutting power of the equipment. They can also eliminate a lot of back and forth movement that occur with vertical grinder units.
A further consideration when selecting a vertical grinder is the option to attach a face grinding unit or not. There are a number of attachment systems available from which to choose. The type of attachment system that is chosen will depend on the requirements for material specification and the amount of back and forth movement that can occur.
One more important factor that should be taken into consideration when choosing the appropriate vertical grinding machine is the level of accuracy that can be expected from the chuck, its bearing and the quality of the chuck’s design. The most efficient vertical grinder units are those that eliminate or reduce as much as possible all forms of back and forth movement. This will ensure that work pieces are not unnecessarily rounded off, while still maintaining their roundness.