WELCOME TO GRINDING & POLISHING MACHINERY
OUR HISTORY
Grinding and Polishing Machinery Corporation was incorporated on May 27, 1952, but the roots extend far beyond that date. Vonnegut Moulder Corporation, incorporated on September 5, 1930, was the predecessor to G & P, and in 1931 Vonnegut Moulder acquired the exclusive manufacturing and sales rights for Marschke Grinders and Buffers, which had been manufactured by the Marschke Manufacturing Company. When Black and Decker acquired Marschke Grinders
and Buffers in 1926, they had already been known nationally for over a decade, putting roots down to around 1916.
In addition to manufacturing Marschke Grinders and Buffers, and Cylindrical Grinding Machines, Vonnegut Moulder Corporation manufactured the Vonnegut Moulder, one of the best known moulders in the woodworking industry in the
thirties and forties, and the Vonnegut brush backed sanding heads, since redesigned and renamed Wolf Head Sanding and Polishing wheels. The manufacturing rights to the moulder were sold in 1949 to Diehl Manufacturing Company, and in 1952, several members of the Vonnegut management team formed Grinding and Polishing Machinery and acquired the remaining
manufacturing rights of the Vonnegut business.
During the late fifties and early sixties, improvements in coated abrasive products made abrasive belt grinding competitive with grinding wheels in the metalworking markets, leading the company to develop a full line of abrasive belt grinders. Since the inception of the Company, Special Machinery has been an important part of the business, and the company has maintained an engineering and design department for this purpose.
The current product mix consists of Special Machinery, a standard line of Abrasive Belt Grinders and the Wolf Head Sanding and Polishing Wheels. G&P Machinery is your only choice for the Top Grinding Machine Manufacturers in North America.
Reliability Built on Generations of Craftsmanship
When you invest in machinery, you aren’t just buying a piece of equipment; you’re investing in the future of your shop’s productivity. At G&P Machinery, we understand that your livelihood depends on tools that work as hard as you do. Since 1952, our family-owned foundation has been built on a simple promise: to provide grinding and polishing machinery that stands the test of time.
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We often tell our customers that we aren’t just in the business of sales; we’re in the business of support. If you have a question, we’re here to listen. If we don’t have the immediate answer, we’ll be honest about it, do the research, and get back to you with the facts. We believe that wisdom is found in patience and honesty, and we treat every operator and dealer like a neighbor.
Machines Built for Decades, Not Just Seasons
In an era of "disposable" equipment, G&P Machinery takes a different path. Our reputation is forged in iron and steel, known throughout the industry for extreme durability. It is not uncommon for us to receive phone calls requesting spare parts for machines that have been in continuous, hard use for over 40 years.
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Whether you are looking for a trusted belt grinder manufacturer or heavy-duty buffing equipment, our engineering is designed to handle the rigors of industrial environments without the frequent breakdowns that stall your workflow. We stand behind every weld and motor, ensuring that if something isn’t right, we make it right.
Supporting Our Partners with Fair Value
We believe that quality should be accessible. In a market where many OEMs are squeezing margins and reducing support for those who move the industry forward, G&P Machinery maintains a highly competitive price structure. We are proud to offer dedicated resale discounts for our dealers—a practice that is becoming increasingly rare. We value the relationships we’ve built over the last 70+ years and strive to ensure that our partners and end-users alike receive the best possible value for their investment.
Legacy Technical Support
Do you have an older machine that needs a tune-up, or are you looking to integrate a new cylindrical grinder into your production line? Our team possesses decades of institutional knowledge. We don't just sell you a machine and disappear; we offer the kind of wise, patient guidance that only comes from being in the manufacturing business since the mid-20th century. Contact us today to get started.
G&P Machinery Specialties
G&P Machinery is your source for all grinding and polishing machinery. We work hard to ensure we build machinery that will last for years to come. It is because of our level of craftsmanship and work-ethic that we are able to deliver our clients with the best and most reliable machinery possible.
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FAQs
GRINDING & POLISHING MACHINERY
