What Is a Surface Grinder?
Surface grinding is utilized to create a fine, even finish on hard flat surfaces such as stainless steel or aluminum. This method is also widely used in the fabrication industry and may be utilized in milling machines, CNC machinery, lathes, drill presses and even table saws. It’s an effective and popular abrasive cutting method where a rotating cutting wheel fitted with tiny rough discs is used to cut small chips of metal or other material from a workpiece, producing a flat surface or lapped edge.
A rotating wheel with small abrasive disks attached creates a fine-grained, uniform surface. This is known as a surface grinder. The fine-grained finish gives the product a high polish and enhances its wear resistance characteristics. This is the ideal material to use for polishing wheels and other rotating accessories because it generates very little drag during operation and is therefore very inexpensive to operate. Its use in abrasive finishing applications is most common on curved shapes and curved edges.
An abrasive machining process called grind-and-sand-and provides the same results as surface grinder. However, it is more labor intensive and therefore more expensive. It uses electric grinders that are often controlled by computer software to precisely perform this operation. In addition, the CNC (Computer Numerically Controlled) feature allows the operator to specify the range of rotary speed and the number of passes over each surface. These features make grind-and-sand surfaces ideal for use with abrasive wheels.
There are many types of surface grinder on the market, and they all have different applications. The most popular type is the belt grind, which is the oldest form and has continued to be a favorite with operators. This equipment functions by moving the work piece in an electric conveyor belt at a fixed speed. The work piece may be moved in either a forward or reverse direction. A plier or press is used to manually move the work piece.
Other types of surface grinder include diamond grinders, abrasive hand grinders, and CNC grinders. All these equipment work by increasing or decreasing the speed of the belt to continuously grind or sand surfaces. Diamond grinders use a grinding wheel to grind materials, while abrasive hand grinders and CNC grinders operate by placing a mandrel on the work piece and rotating the work piece with a drill press. Because the CNC equipment is programmed to operate on pre-set parameters, it is suitable for complex cutting tasks.
When looking for a surface grinder, consider the following factors. The first factor should be whether it uses a chain or belt. Both are effective, but belt driven tools are more efficient than chain drives. Speed is also a very important factor to consider. Grinding wheels with variable speed drive give the user the ability to fine-tune performance.