UNISIG's B850 deep drilling machineClick image to enlarge

UNISIG has launched a new model of deep hole drilling machines in its B-series, the B850.

When designing the B850, UNISIG evaluated all aspects of the previous designs. The bed and rack-and-pinion system were retained, while feed systems were modernized to improve rigidity and reduce backlash. A new high-performance, helical-geared transmission was incorporated in a three-range, automatically shifting headstock.

Incorporation of modern gearing and power train concepts simplified construction of the machine, reducing cost and boosting reliability and performance. The B850 also offers a standard programmable coolant system. Combined with user friendly controls and the other new design features, the machine allows an operator to focus on the part being machined instead of managing a wide variety of manual functions.

Both the work and tool headstocks deliver 166 hp for high power and high torque needed to drill holes up to 180 mm (7.1 in.) in nickel alloys, 221 mm (8.7 in.) in carbon steel, and 320 mm (12.6 in.) with counterboring. The machine is available with maximum drill depths ranging from 1.98 to 19.81 m (78 in. to 65 ft).

The B850 is part of UNISIG’s B-series line, designed for on-center drilling of round workpieces in applications such as aerospace, defense, and oil & gas. In addition to standard BTA drilling methods, these machines are also capable of counterboring, trepanning, and skiving and roller burnishing processes, achieving the strict tolerances required by manufacturers in these and other industries.

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