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This section provides an overview for grinding as well as their applications and principles. Also, please take a look at the list of 24 grinding companies and their company rankings. Here are the top-ranked grinding companies as of December, 2024: 1.General Grinding & Manufacturing Co., LLC, 2.North American Carbide, 3.KAAST Machine Tools, Inc..
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Categories Related to Grinding
Grinding is the process of grinding the surface of a workpiece with a circular grinding wheel.
A grinding wheel rotating at high speed is pressed against the workpiece to grind the surface of the workpiece gradually to the desired shape. Grinding is similar to polishing, but in grinding, a certain amount of pressure is applied to the workpiece using a grinding wheel, file, buff, etc., to achieve a "flat and clean" surface.
Grinding, on the other hand, is performed with a certain amount of depth of cut in pursuit of "dimensional accuracy" of the finished product.
Grinding is used for many industrial parts and products as a finishing process for cast, forged, and machined workpieces. Particularly in the automotive industry and industrial machinery, grinding is used for precision finishing of shafts, bearings, moving parts inside engines, and brake discs.
It is also used in the manufacture of furniture, bearings for household appliances, and circular saws. The ability to process extremely hard workpieces has led to widespread use in the semiconductor industry, including the processing of silicon wafers and minerals such as quartz and sapphire for use inside electronic components.
Surface grinding uses a surface grinder to machine the flat surface of a workpiece. The workpiece is fixed to the table, and the table is moved back and forth, up and down, to grind. There are two types of grinding methods: vertical grinding with the wheel axis perpendicular to the table, and horizontal grinding with the wheel axis parallel to the table. There are various types of grinding methods depending on the combination of the table movement method and axis direction.
Cylindrical grinding is the process of grinding the outer surface of a cylindrical workpiece using a cylindrical grinder. There are three types of grinding methods: traverse grinding, plunge grinding, and angular grinding.
In transverse grinding, the workpiece is ground by reciprocating it. Plunge grinding is performed by grinding the workpiece with the grinding wheel perpendicular to the workpiece while rotating the workpiece. Angular grinding is a method in which the grinding wheel is tilted to simultaneously grind the outer surface and the end face of the workpiece.
Internal grinding is a method of grinding the internal surface of a workpiece with a hole using an internal grinding machine. There are two types of internal grinding methods: the standard type and the planetary type.
In the standard type, a grinding wheel is inserted into the internal surface of the workpiece, and both the workpiece and the grinding wheel are rotated for machining. The planetary type is a method in which only the grinding wheel rotates and orbits on the inner surface of the workpiece.
Centerless grinding is a method of grinding the outside of a cylinder in the same way as cylindrical grinding. However, the method of securing the workpiece differs between the two.
In centerless grinding, the workpiece is evenly supported at three points: the support blade, the regulating wheel, and the grinding wheel, and the rotating grinding wheel is placed against the workpiece so that the workpiece spins naturally. This allows the workpiece surface to be finished uniformly.
This type of grinding is suitable for machining thin or long cylinders such as cylinder rods. Since the workpiece does not need to be fixed in place, it is suitable for mass production and can achieve a uniform finish.
The small depth of cut in a single operation improves machining accuracy. Since each of the abrasive grains that make up the grinding wheel has a role as a blade and is rotated at high speed, chips are extremely small. Therefore, the roughness of the finished surface is much better than that of a cutting tool, and the dimensional accuracy is also excellent.
Because the cutting edges of grinding wheels are made of extremely hard mineral particles, even cemented carbide and ceramics can be easily ground. The self-sharpening action of the grinding wheel allows gradual grinding while maintaining sharpness. Materials that cannot be ground with cutting tools can also be ground.
Smooth surface finish is possible due to gradual grinding.
When the cutting edge of a grinding wheel wears down during use, the abrasive grains fall off to form new cutting edges and pores. Therefore, there is no need for resharpening, as is the case with cutting tools.
Grinding requires only a small amount of cutting at a time, but the grinding wheel rotates at a high speed, and the peripheral speed is 10 times faster than other cutting processes, resulting in high productivity.
Grinding wheels used in the grinding process grind the workpiece using three elements: abrasive grains, bonding agent, and pores.
Another problem with grinding wheels is that they can become "ground up," "clogged," or "spilled." When these occur, the workpiece cannot be ground.
*Including some distributors, etc.
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3M Company was founded in 1902 and is headquartered in St. Paul, Minnesota. 3M provides diversified technology services globally. 3M operates through four segments: Safety and Industrial, Transportation and Electronics, Health Care, and Consumer. The Safety and Industrial segment offerings include industrial abrasives, masking, and natural and color-coated mineral granules for shingles. The Transportation and Electronics segment offerings include ceramic solutions, light management films, and electronics assembly solutions. The Healthcare segment offerings include wound care, dentistry and orthodontia solutions, and filtration and purification systems. The Consumer segment offerings include consumer bandages, picture hanging, and stationery products.
KAAST Machine Tools, Inc., established in 2009, is a manufacturer of fabrication machines, ironworkers, plate & profile rollers, band saws, and chip-making equipment such as grinders, mills, presses, and lathes used in automotive, construction, defense, aerospace, and metal working industries. The Aldan, PA company offers drilling, turning, milling & grinding, drilling, and after-sales services, including consulting & planning, installation, financing & leasing, operator training, and fabricating. The company has a warehouse in Philadelphia with 24-hour delivery in the area and 48-hour delivery in other areas.
General Grinding & Manufacturing Co., LLC was established in 1946 in Huntington Park, CA, and is a manufacturer of parts used to improve the manufacturing processes in aerospace, commercial, and precision instruments industries. It offers centerless grinding, surface grinding, ID grinding, and OD grinding for pins, cylinders, shafts, pins, and more. The company has served clients like the Triumph Group, Garrett Advancing Motion, Alatus Aerosystems, and Adams Rite Aerospace. It has also received the ISO 9001:2005, AS9100D, Anti Drug and Alcohol Program and Small Disadvantaged Business certifications.
Nation Grinding, Inc. is an American contract manufacturer specializing in precision grinding and coating since its establishment in Dayton, Ohio in 1954. The company primarily works with hard surfaced wire drawing blocks or capstans in repair, retrofitting and rebuilding operations. They also offer HVOF or plasma metalizing coating as well as precision grinding services using Blanchard, cylindrical, thread, internal diameter (ID) and outer diameter (OD) grinding techniques for working with different materials, or toward unique product applications. Nation Grinding chiefly serves client companies and contractors in the military, defense, marine, mining, and instrumentation sectors.
Jaygo Incorporated was incorporated in 1971 in the State of New Jersey. Originally, Jaygo was a distributor of equipment for chemical, pharmaceutical, cosmetic, coating, and petroleum industries. Today, Jaygo is also a manufacturer of equipment including conical screw processors, double planetary mixers, and all types of grinding media. Jaygo serves both large Fortune 500 companies and startups. Jaygo sells both new and used equipment. Jaygo’s product offerings include agitated filtration & drying systems, double arm mixer extruders, batch mills, and pressure vessel clamps. Jagyo also offers equipment rental and testing facilities.
North American Carbide is a manufacturer and distributor of carbide cutting tools and related products based in New York, USA, founded in 1977. The company produces carbide cutting tools used in machining and metalworking processes for hardness and wear resistance. These include inserts, end mills, drills, reamers, and special tooling. Its products are designed for precision machining and metal-cutting applications in various industries, including manufacturing, aerospace, automotive, and more. Additionally, the company provides tool resharpening, recoating services, and custom tooling solutions to tailor the specific needs of its customers.
Dewalt Inc. is a power tool manufacturing firm started in 1924 by Raymond DeWalt. It began as a small enterprise in Maryland but quickly expanded. They were reformed and reincorporated as DeWalt Inc. in 1947 and were purchased by American Machine & Foundry Co.Inc in 1949. Dewalt Inc. provides a diverse range of products such as power tools, hand tools, accessories, outdoor equipment, and workplace equipment. As of 2001, they produced and sold over 200 hand power equipment and 800 accessories. DeWalt is now a well-known tool brand among commercial contractors.
TCI Precision Metals was founded in 1956 and is headquartered in Gardena, California, United States, as a distributor of precision-cut parts and machine-ready blanks. The company offers diverse products, including aluminum strip blanks, 2-sided precision blanks, precision saw-cut blanks, and round precision blanks, among others. These products are essential for ensuring precise dimensions and quality in manufacturing processes across various sectors, including the creation of intricate shapes and meeting tight tolerances. The company serves various industries, including aerospace, medical, defence, energy, transportation, and food processing.
Duval Precision Grinding, Inc. is a supplier of precision grinding services, founded in 1946 and headquartered in Chicopee, United States of America. The company provides the following services: internal & outer diameter grinding, and surface grinding services. It also offers jig grinding, CNC grinding, and NADCAP-accredited grinding services. The company expands its client base through modern communication and efficiency with decades of experience in traditional grinding techniques. It’s a company with an AS9100D and ISO 9001:2015 certifications.
Sadler Machine Co., Inc.,established in 1956 and situated in Cedar Rapids, United States of America, is a supplier of engineering services. The company delivers short-run production and prototype machining, large-part machining, and repair services. It also provides grinding, fabrication, stress relieving, brush plating, and on-site machining services. With the capability of turning diameters up to 60 inches and shaft lengths of 40 feet, its milling capacity spans the whole spectrum of configurations with weights of up to 10 tons.
Rohde AG, established in 1925 in Norten-Hardenberg, Germany, is a manufacturer of advanced aluminum, stainless steel, and plastic handles. The company offers an array of products including metal handles, bow type handles, tubular handles, ledge handles, and plastic handles. These handles provide benefits such as durability, corrosion resistance, and ergonomic design, resulting in enhanced usability and aesthetics. The products are used to provide safe and comfortable grip solutions in appliances and furniture, as well as automotive and industrial equipment industries. Surface treatments such as electroplating, eloxal, electropolishing, and blasting are also offered as services to customers.
TDC CO., LTD., established in 1989 and headquartered in Miyagi, Japan, is a manufacturer that specializes in precision technologies. It employs polishing and lapping technology capable of achieving ultra-fine specifications, even for materials with surface roughness as low as Ra1 nanometer. It specializes in achieving sub-micron level super fine flatness, parallelism, and size tolerance, all while accommodating multiple requirements. The company processes various materials, including metals, ceramics, glasses, and semiconductor materials. The company has created precision-finished surface plates, precision machining of XY stage spindles, precision feed rails, positioning jigs, and glass scales for encoders, leveraging precision dimensional control technology.
Gloor Precision Tools Ltd, established in 1959 and headquartered in Lengnau, Switzerland, is a manufacturer of carbide cutting tools. The company consults, manufactures, and resharpens solid carbide tools, including form, thread, and gear cutters. It offers thread tools with constant shape due to relief grinding and gear cutting tools designed with specialized software for precise profiles. Its tools feature logarithmically relief-ground angles for longevity and consistent profiles. The company excels in producing fine-toothed milling cutter profiles using a patented process. It supplies tools for medical, watchmaking, and locksmithing industries tailored to validated processes and compliance with industry standards.
The BKS Group, founded in 1983 and headquartered in Lambermont, Belgium, is an industrial knives manufacturer and distributor. The company's products include rotary cutters for the plastics industry, industrial circular knives, and industrial straight knives. It also produces pelletizing knives, slitting knives, and die plates. These products are used in applications such as wood, plastic, and paper. It also offers the sharpening of blades on various turning, milling, and grinding machines, and it offers custom manufacturing services for original equipment manufacturers.
Migatronic A/S is a Danish manufacturer of welding machines and equipment that is headquartered in Fjerritslev, Denmark, and was established in 1974. The company's core expertise lies in designing and producing a diverse range of welding machines and accessories, including MIG welders, TIG welders, plasma cutters, and robotic welding systems. Migatronic also offers other welding consumables, such as welding rods, wire, and gas. Migatronic offers services such as customization warranties, automation and machine refurbishment. The company's customers include various welding processes and industries, including manufacturers, distributors, automotive, industrial, and shipbuilding.
Ohno Seiko Co. Ltd., founded in 2001, is a Japanese manufacturer and supplier headquartered in Nishio City, Aichi, providing precision metal parts. The company’s product range includes electronic and integrated circuit (IC) parts, such as pallet basses and parts for IC chip carriers. It also offers parts related to lithium batteries and starter devices. The company provides object cutting and welding services as well as grinding processing using cylindrical and surface grinders. It also offers polishing services through lapping processes to achieve surface roughness of specific measurements. These products find applications in various industries, including the automotive and medical sectors.
Meusburger Georg GmbH & Co KG., founded in Germany in 1964, is a supplier of high-precision standard parts and products for workshop equipment and control systems. The company's product portfolio includes a selection of screws, nuts, bolts, and washers that meets rigorous industry standards, precision-ground shafts and rods are available in various materials and size and precision bearings. It serves a diverse range of industries, including automotive, aerospace, manufacturing, construction, and more.
Shasta Services LLC. is a supplier of conditioning and conversion services, formed in 1974 and situated in Aliquippa, United States of America. The company offers grinding, machining, and finishing services to its customers. It also delivers bar turning and straightening as well as saw-cutting services. Its in-house-built, fully automated grinders provide the capability of eliminating surface defects on the safe of slabs, rounds, billets, blooms, and ingots. Its equipment and operators enable it to peel, grind, polish, and cut material of any size.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | General Grinding & Manufacturing Co., LLC |
14.5%
|
| 2 | North American Carbide |
9.1%
|
| 3 | KAAST Machine Tools, Inc. |
9.1%
|
| 4 | Nation Grinding, Inc. |
7.3%
|
| 5 | Custom Production Grinding |
6.4%
|
| 6 | UNION PROCESS, INC. |
5.5%
|
| 7 | Blackies Grinding |
5.5%
|
| 8 | Ferro-Ceramic Grinding, Inc. |
4.5%
|
| 9 | Shasta Services LLC. |
3.6%
|
| 10 | Industrial Grinding, Inc. |
3.6%
|
Derivation Method
The ranking is calculated based on the click share within the grinding page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
14 | 77.8% |
|
Germany
|
1 | 5.6% |
|
Japan
|
1 | 5.6% |
|
Denmark
|
1 | 5.6% |
|
Austria
|
1 | 5.6% |
