One of DPD’s first customers was Construction Technology, Inc. in Noble, Oklahoma. Founder Larry Beller was manufacturing a unique milling machine that mounted to a large loader as an attachment. Over the course of several years, we documented Larry’s excellent designs, created a system for inventory control and manufacturing, using some very economical software based on Microsoft Access, and worked with CTI to design a large array of different sizes of milling attachments and engine/pump packages utilizing Caterpillar, John Deere, and Cummins engines, Rexroth and Sundstrand hydrastats, and mounting for loaders, including Cat 980, Cat 988, and Elphinstone. We also designed a tree-mulching attachment that put over 500 horsepower to the milling head, and mounted on Cat D6 and Deere dozers. Construction Technology was purchased by Iron Wolf, which continues to produce these designs.
Larry Beller went on to form IronEagle, and we have continued to work with him on innovative designs such as the MTM600 Road Renovator.