BTA Deep-Hole drilling and ejector machines

BTA deep hole drilling machines with ejector system are evolved from classical BTA machines. It is a system with twin tubes where the coolant is pumped through the space between the inner and outer tube. This eliminates the use of pressure head and simplifies the system. This was introduced mainly to tool up conventional machines to do Deep Hole Drilling. The ejector system can process holes with minimum 16 mm diameter, due to the double tubes system.