Precision grinding is a manufacturing process that employs a rotating grinding tool to remove material from a workpiece such that it conforms to the desired specifications. Grinding tools consist of abrasive material, which chip or scratch off layers of material as the tools or workpieces rotate. They are available in a variety of tool designs and abrasive materials to suit different substrates and grinding specifications.

Across industry, the rising demand for tight tolerance, precision parts and components has increased the popularity of precision grinding as a finishing process. Some of the most popular uses for precision grinding include the production of:

  • Aerospace and scientific instruments
  • Bladed implements
  • Electronic components
  • Medical devices and smart medical tools

With over 180 years of combined experience in precision grinding, the expert team at Centerless Technology, Inc., has the skills and knowledge to produce high quality ground parts that meet or exceed client standards at a competitive price and with timely delivery.

Accuracy for Industrial Needs

Manufacturers use high precision grinding to fabricate and finish a wide variety of products ranging from intricate and complex small parts to large-scale components. Many of these products require conformity to exact specifications and standards to function and fit as intended. To meet these precision and accuracy requirements, precision grinding experts employ different grinding tools and techniques to achieve the desired size, shape, and surface texture with tight tolerances.

Precision grinding finds application in the daily needs and operations of a wide range of industries, including:


Aerospace parts need to perform in extreme conditions with minimal risk of failure or malfunction. Precision grinding processes such as thread grinding produce rivets and bolts that match their original designs to the last detail. Grinding also produces exact dimensions and finishes for engines, control system parts, and hydraulic or pressurized components.


Car parts have tight tolerance demands so that all moving parts operate in tandem. The slightest protrusion or rough surface can interfere with safe operation and degrade fuel efficiency. Precision grinding the surfaces of every part ensures each component is precisely sized and reduces the amount of friction experienced.

Machining and Manufacturing

Machining and manufacturing processes transform raw materials into finished parts and products. While the machines and tools that perform these processes are built to withstand the stress of operation, from time to time, maintenance, repair, and part replacement are required. Precision grinding is used to maintain the performance of machining and manufacturing equipment, including by repairing existing tooling or producing new ones based on OEM specifications.

Newer grinding techniques, such as centerless grinding, have also impacted the manufacturing and machining industries by reducing the costs and material wastes required to achieve higher precision parts.


Medical devices and instruments, such as drills, scalpels, and dental tools, require high precision and accuracy. Precision grinding processes enable manufacturers to finish tools to exact specifications, sharpness, and finish requirements. The grinding process also produces smoother surfaces that reduce the risk of friction or infection.


The printing industry uses a variety of machinery and tools to produce the finished products, including paper rollers and blades. Precision grinding services keep blades sharp and ensure that rollers can run smoothly without bumps or rough surface interactions.


Despite the difference in size, components used in transportation equipment and heavy machinery require the same amount of precision as those used in smaller electronics and vehicles. Precision grinding machines ensure that parts are finished to exact dimensions and kept smooth to prevent frictional damage or overheating. Typical transportation parts that are precision ground include axles, engines, hydraulic components, transmissions, and valves.

Specialists in Precision Manufacturing

Choosing the right precision grinding company is essential. Your service provider needs to be confident that your products will be finished according to their exact dimensions with very low margins of error.

At Centerless Technology, Inc., we have a long history of delivering high quality, precision ground end products to clients across several different industries. When you work with us, you can count on:

  • On-time delivery. We understand the importance of sticking to a production schedule and make every effort possible to deliver your products when you need them.
  • Fast turnaround. Our processes keep everything moving on time, every time. Our company offers some of the fastest turnaround times for precision grinding operations, as well as options for expedited orders upon customer request.
  • Expert service. We hire and train top-tier talent, so you get the highest quality industrial precision grinding services.

Our Precision Grinding Services

Depending on the material of the workpiece and the desired design of the final products, precision grinding experts employ different techniques to ensure precision and accuracy. That’s why at Centerless Technology, Inc. we offer several different grinding methodologies to match your materials and designs to the right process.

Our capabilities include:

cylindrical grinding machine


This process holds and rotates the workpiece around a fixed axis and shapes and finishes the exterior surface. The grinders use wheels with a variety of size and material options to achieve different finishes.

Thrufeed / Bar Grinding

Thrufeed grinding is an efficient process for achieving a simple but high quality finish. The workpiece is pushed between two wheels—a grinding wheel and a smaller regulating wheel—and the wheels grind the piece down to its specified dimensions and finish.

thrufeed & bar grinding capabilities
Journal & Infeed Grinding Services

Journal / Infeed Grinding

Infeed grinding is similar to cylindrical grinding. However, instead of spinning around a fixed axis, the workpiece remains stationary as the precision grinding tools feed into precise locations along the workpiece to a specified depth.

Bar Straightening

This process straightens bars with a diameter between 0.125 inches and 0.625 inches to make them suitable for further processing and finishing operations. Grinding the bars ahead of time saves manufacturers time in future machining stages.

bar straightening capabilities | precision grinding services
polishing grinding services

Burnishing / Polising

Burnishing and polishing processes use abrasive materials to achieve a smooth finish on the workpiece, transforming rough components to a 2 Ra or higher finish. Our polishing processes can handle components up to 23.5 inches long and between 0.25 and 1.25 inches in diameter.


Honing processes enhance the surface finishing of the workpiece. This process delivers tight tolerance in a part’s roundness, straightness, and size.

honing services
Raw Material Supplier for Precision Grinding

Raw Material Supplier

In addition to our grinding capabilities, we also supply raw material—specifically, stainless steel, carbon steel, and aluminum.

Request Your Custom Grinding Quote Today

Precision grinding produces parts and products that meet exact design specifications to tight tolerances. At Centerless Technology, Inc., we offer a wide range of industrial precision grinding services so that your company’s products match their designs to the last detail. Our expert grinders and technicians deliver high quality ground parts that meet or exceed your standards at a competitive price and on time.

For assistance with your next custom grinding project, request a quote today.