Centerless grinding is a widely adopted grinding process that utilizes a grinding wheel, regulating wheel, and work rest blade to perform high-precision bar grinding and other, piece part outer dimensional (OD) grinding services. Categorized into two basic types, this service is performed using a through-feed, or in-feed method. To choose the best option for your unique part and component requirements, it is important to understand the differences and advantages of each method. At Minnesota Grinding, we provide centerless grinding solutions for businesses across Minnesota. Quality, precision, and repeatable results are at the core of our business. After gathering just a few pieces of key information, we can help you determine the best plan of attack for producing a quality end product with our centerless grinding solutions. First, let’s lay out the distinct parts and advantages that make this technique stand out.

As mentioned above, a centerless grinding machine utilizes a grinding wheel, regulating wheel, and work rest blade. While it may seem like the grinding wheel is the most important piece of this grinding system, it cannot function properly without the help of a support and regulatory system. Opposite the grinding wheel, the regulating wheel, which is commonly made of rubber, is designed to regulate the speed of the part being rotated—helping determine the exact necessary grinding pressure, surface geometry, and surface finish. The work rest blade also is critical for supporting the part while it is being ground, and help correct for any uneven surfaces that could cause the part to shift while in place.

The Two Types of Centerless Grinding

The most common method for centerless grinding is through-feed grinding. This grinding process is carried out by feeding a part between the regulating and grinding wheel all the way through. You can also slightly alter the through-feed process by angling the regulating wheel relative to its support blade and grinding wheel. This method is the most efficient centerless grinding method we offer, helping companies produce the parts they need quickly, without sacrificing precision and quality.

Another commonly used method of centerless grinding is in-feed grinding. Also referred to as plunge grinding, this method works by manually feeding the part into the grinding wheel, through the operation of the regulating wheel, both of which can be dressed in to produce a variety of diameters at once. The most common application for in-feed centerless grinding is for smaller parts that may have multiple diameters or features on them preventing them from going through a through feed machine. This process is generally more affordable than grinding the same parts “between centers.”

Key Reasons to Choose Centerless Grinding through Minnesota Grinding
Minnesota Grinding provides an impressive array of centerless grinding services used across many industries. If the part you are working with has a high length-to-diameter ratio, centerless grinding is the perfect choice for replacing conventional turning methods, and producing a product to strict measurement tolerances. Ideal for high QTY, and cheaper cost per part.

Years of hard work and innovation have brought our company great success in our industry. Our capabilities and strengths have been built up to match today’s market, and are always developing as new technologies and techniques emerge. Serving the greater Twin Cities, MN area and beyond, Minnesota Grinding offers centerless grinding services that will exceed your expectations. Trust our team to make it happen for your business! Call us today at 763-535-4445, or visit our website to request a free quote.