Shown here is some fabricated bridge girders that required 15/16" diameter holes to be drilled through as much as 3" of mild steel plate splices. The HMT SDT7-Series accomplished the task using twist geometry drills with through-the-bit coolant capability in under 50 seconds per hole. SDT7 Model Machines with the Allen Bradley 9/PC Series CNC Control optimize capability to the extreme. Not only is the machine unit portable but also automated to achieve greater production output. The HMT SDT7-Series CNC main control cabinet is located at the rear of the machine and comes complete with cooler units. Equipped with a detachable operators control pendant, SDT7 CNC's allow flexibility to the user when positioning the unit for specific applications. The DTDW-Series Box Column Drill is used when heavy duty applications require tackling. The DTDW features the Allen Bradley control similiar to the SDT7-Series except for, naturally, X & Y-Axis positioning. With its elevating wide table work surface, the DTDW incorporates the option of a Spindle Power Feed or Manual Feed capability. The DTDW-Series controls can be positioned to suit customer. The DTDW will give its user both capabilities in drilling and tapping. HMT can also assist the customer for special applications and fixtures, such as indexing units with multiple heads and holding devices. DTDW-Series Gang Units allow the operator to accomplish multiple applications upon one machine. Each station operates independantly from one another and has its own Emergency Stop system. A master E-Stop is also present and easily accessible. The Gang also has the table elevation capability.

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