Skip to content

Industry leaders in lapping
machine & polishing machine
products committed to silicon carbide


Single-sided and Double-sided Planetary Lapping and Polishing Machines

PR Hoffman’s role in the lapping and polishing industry began in Carlisle, PA in 1938, with the invention of the Hunt-Hoffman planetary lap machine by Grover C. Hunt and Philip Reynold Hoffman. The double-sided planetary lap machine revolutionized the quartz crystal industry, and the concept remains unmatched for consistent, reliable processing of parts requiring tight control of thickness, flatness, parallelism, and surface finish.

We offer complete lapping, grinding and polishing machine product lines for a variety of manufacturing processing needs for applications such as SiC, quartz, optics, semiconductor, LED, electronics, ceramics and metalworking.
A global supplier in leading-edge technology industries, pr hoffman is relentlessly committed to quality
Visit Machines

Custom designs for
semiconductor processing


Lapping, Grinding, and Polishing Carriers

PR Hoffman is a world leader in producing customized carriers for your processing needs. We offer unique types of work holders: lapping, grinding, and polishing carriers.

PR Hoffman generates a custom drawing for customer review and approval before any products are made. This ensures our customers receive precisely the design needed for their process on every order.
Our insert carriers feature materials for each unique processing environment
Visit Carriers

A world leader in the design and
construction of polishing fixtures

Polishing Fixtures

Templates and CXTS

PR Hoffman custom manufactures waxless mount assemblies for any single-side process such as Silicon wafers, Silicon Carbide (SiC) wafers, compound substrate wafers, glass wafers, ceramics, along with virtually any flat and parallel part that requires a polished surface.

Polished wafers must be consistent and error-free. PR Hoffman offers a full line of different mounting materials that hold the wafer in place and are compatible with your processing media.
Waxless templates and cxt save time and money by eliminating the work of wax mounting and cleaning
Visit polishing fixtures