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BTA(single tube) deep hole drilling is introduced internal chip removal and external coolant. Drill head is connected with drill stem through screw. Because of internal chip removing, the connection parts are circle so that achieves higher rigidity than gun drilling tool. Its drilling efficiency is 2 to 4 times higher than gun drilling. BTA deep hole drilling requires higher sealing between workpiece and guide bush as well as higher coolant oil pressure. Single tube drilling is proper for high volume and continuous processing which requires high efficiency. Especially, it should be first used in processing of hard chip breaking material like stainless steel, low carbon steel, etc. and deep hole of big length and diameter ratio. This series’ usage is wide, but limited by the space of inner hole of drill stem, it’s mainly used in drilling deep hole diameter bigger than 16mm.
Main parameter of the machine
1.Drilling hole diameter range: Ф35.0mm～Ф80.0mm
2.Extend hole diameter range: Ф35.0mm～Ф150.0mm
3.Max. drilling depth: 1500mm
4.Max. clamping diameter of workpiece: Ф1600mm
5.Workpiece clamping method: chuck + hydraulic center frame
BTA series are the top equipment choice for large batch rotary shaft parts process and find application on mining machinery, machine tools and mould industry.
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