Cast Iron Tombstones

AMROK's tombstones are 100% American-made with some of the industry's tightest tolerances. We firmly believe in providing durable foundations that can withstand the test of time, and offer limitless workholding possibilities for your future. Our expertise lies in the design, manufacturing, and testing of workholding foundations tailored for 3-axis, 4-axis, and 5-axis CNC machines.

• Alphanumeric Grid for Faster Loading | AME's alphanumeric 2" precision grid, provides consistent setups for easy repeatability.
• Hole Plugs Preinstalled | Our tombstones come with hole plugs preinstalled into our grid to prevent chip build-up and provide easy cleaning.
• Advanced Materials | Our CNC tombstones come in a variety of materials, such as cast iron, epoxy mineral, and aluminum. Our engineers work with your shop to choose the best material for your application.
• CMM Inspection for Part Accuracy | Our fixtures are checked using large scale, state-of-the-art CMMs within a temperature-controlled environment to ensure the tightest tolerance requirements. CMM reports available upon request.
• Easily Download CAD Files | Our CAD library features standard sizes with custom sizes available upon request. 

Because tombstones support the workpiece during machining, their dynamic response becomes part of the entire system. The goal of this whitepaper was to measure the dynamics individually and then as part of a machine setup. All tests were conducted by Dr. Tony L. Schmitz, a world renowned mechanical engineering professor at the University of Tennessee, Knoxville and joint faculty at Oak Ridge National Laboratory, who specializes in machine tool research and manufacturing engineering. Review this whitepaper to learn more about what tombstone material best suits your application.

Featured Highlights

• The Economics of Workholding Systems
• Design of Workholding Systems
• Cutting Forces in Milling
• The Role of Stiffness in Workholding