Processing Method: BTA internal chip removing
Hole Diameter(mm): Φ16~Φ60
Hole Depth(mm): 1000
NC System: GSK980TDC / FANUC OI Mate TC
Drill Pipe: frequency control; simultaneously rotating and feeding
Workpiece: rotating with constant speed
Guide Sleeve: pneumatically drive
Workpiece Clamping: hydraulic chuck, hydraulic centre support
Parameter:
Processing Ability:
1. Number of Axis(pcs): 1
2. Hole Diameter(mm): Φ16~Φ60
3. Hole Depth(mm): ≤1000
4. Max Diameter of Workpiece(mm): Φ320
5. Diameter of Hydraulic Centre Support Clamping(mm): Φ270
6. Length Range of Workpiece(mm): ≤1000
Processing Speed:
1. Max Rotation Speed of Drill Pipe’s Spindle (r/min): 1800
2. Workpiece Rotating Speed(r/min): 31.5
3. Feeding Speed Range(mm/min): ≤1500
4. Feeding Fast Forward Speed(mm/min): ≤2000
Processing Accuracy:
1. Hole Skewness: ≤1/1000
2. Dimensional Accuracy of Drill Pipe: IT8~IT11
3. Hole Rugosity: Ra1.6~Ra3.2
Power of Machine
1. Drill Pipe Motor Power(kw): 30
2. Workpiece Rotating Power(kw): 3
3. Feeding Power(kw): 1.8
Feeding Torque(M.N) 11
4. Total Power(kw): 65
5. Oil Pump Power(kw): 11.0+11.0 (double pump group)
6. Oil-temp Cooling Power(kw): 0.8
Hydraulic System
1. Max Volume of Flow(L/min): 280
2. Max Pressure(Mp): 8.0
3. Filtering Accuracy(um): 20
4. Oil Storage Capacity(L): 1360
Basic Dimension & Weight
1. Dimension (mm): 5500*3000*1800
2. Height between Drill Pipe Center and Ground(mm): 1070
3. Weight of Main Engine(kg): 6500
4. Weight of Hydraulic System(kg): 2500
BTA is an external cooling and internal chip removing type of deep hole drilling. The drill head and drill stem is connected by screw. The rigidity is higher than gun drill and the drilling efficiency is 2-4 times higher than gun drilling. BTA deep hole drilling requires higher ...