BTA Deep Hole Drilling Machine

The usage of the machine: the machine is a special equipment for drilling and boring deep hole of cylindrical workpieces. While boring, the oil supplied from the oil pressure head take the metal chips from the cutting area to the lantern and chip converyer in the front of the headstock, and drilling adopt internal metal chips remving method (BTA method), the oil supplied from oil pressure head remove the chips from the cutting area to the chips receiver in the back of the machine through the innner hole of the drilling tube.
The machine is controled by PLC, and the feed of the oil pressure head and carriage is controled by the servo motor, The feeding rack installed in the middle of the bed guideway guarantee the requirement of feed accuracy and rigidity for the long travel. The protection guard installed on both sides of the bed and overground oil tank improve the working environment. The machine can be mated with automatic or manual telescopic tool so as to improve the machining efficiency greatly.

This is a easy operating, high efficiency and environment protective deep hole drilling and boring machine.

Main Specifications and Features
specifications                                                                   technical parameter
The range of drilling diameter                                           Φ40mm-80mm
The max diameter of boring                                              Φ40-200mm
The height of center                                                           400mm
The range of max depth of boring                                     1000-10000mm
The diameter of chuck                                                       Φ400mm
Workpiece clamed dia. of steady rest                               Φ50mm-400mm
Spindle speed range and steps                                       70-1200r/min three grade stepless
Feeding speed range                                                      5-2000mm/min,3 gears, 12 grades
Main motor                                                                      N=30kW
Feed speed                                                                      5-2000 rpm, stepless
Feeding motor                                                                N=4.5kW servo motor
Motor of oil pressure head                                            N=4.5kW servo motor
Cooling pump motor                                                     N=5.5kW n=1440r/min, 4 groups
The rated pressure of cooling system                            2.5MPa
Flow of coolant                                                              100 200 300 400L/min
 
 
Optional scheme
1. The machine can be mated with N=37kw frequency converting spindle motor, then the spindle speed will change to 60-1200rpm with 3 gears stepless speeds.
2. T2120G/1 is mated with a travel headstock with rotating drilling bar and a 15kw motor so that the workpiece and drilling head can be rotate oppositely, and the spindle speed of the travel headstock is 40-500rpm.
3.the machine can be mated with drilling small holes device which can drilling 20-40mm holes.

4. the machine can be mated with CNC system, e.g. SIEMENS 828D or FANUC oi mate or GSK or KND system.