Sunnen’s horizontal machines use a wide variety of honing tools and abrasives to size and finish bores of all sizes. With our industrial honing machines, you can expect:

• Precise bore size, straightness, and roundness appropriate to the application.
• Accurate surface finish and texture set to strict specifications.
• Consistent results achieved quickly and economically, even in high-volume production applications.

All Sunnen systems are fully supported by experts from around the world. With a complete line of products and a knowledgeable staff, you can rely on us for parts, service, and support.

Founded in 1924, St. Louis based Sunnen Products Company has long been the worldwide leader in industrial bore sizing and finishing systems. Today, Sunnen is the largest fully integrated company in the field.

Sunnen’s honing systems range from basic manually operated honing machines to fully automated systems that provide every necessary function for bore sizing, from honing and gaging to part handling. Sunnen also manufactures top selling heavy-duty tube hones as well as tube hones for light and medium applications.

All Sunnen systems are fully supported by experts in the St. Louis headquarters and around the world.