DDB II 160X180/320
- The machine is used for nuclear power rotor, roller etc. large type shaft parts deep hole drilling boring machining, it has function of solid drilling, cylindrical drill, chambering, boring hole, workpiece face turning and face outer cylinder etc. function.
- Bed of workpiece and drilling rod bed high low layout.
- The headstock is mounted on the sliding plate, it can maneuver on the workpiece bed by length of workpiece's requirement, it is reached to the position and clamped on the bed of workpiece.
- The drilling rod box has feature for rotating (drilling) or non-rotating (boring) tools.
- Drilling rod box is installed on drilling feed sliding plate driven by AC spindle motor transmitted by screw.
- The machine solves that middle low-pressure rotor and motor's rotor super long deep hole machining and deep hole chambering machining for AP1000 unclear power's item. And it broke the situation of finished product relying on importation.
- The machine is domestic initiate, main subject is reached international advance lever, several items innovate technical item is advantage, it gains national patent five items.
- The machine is ranked as the first set production in focus areas of HeiLongjiang province and obtained the first prize of scientific and techno logical progress on machinery industry of HeiLongjiang.
| Parameters | Unit | DDB || 160x180/320 |
| Max. boring hole's diameter | mm | 1600 |
| Diameter of max.drillng hole | mm | 150 |
| Max.dia.ofnesting holes | mm | 250 |
| Depth of Max.drilling boring hole | mm | 18000 |
| Length of Max.workpiece | mm | 18000 |
| Diameter of Max.workpiece swivel | mm | 3200 |
| Weight of max.workpiece | t | 320 |
| Max.torque of headstock'spindle | N.m | 150000 |
| Range of headstock spindle roating speed | r/min | 0.4-80 |
| Degree of headstock spindle speed changed | Stepless(Mechanical II step) | |
| Max.torque of drilling rod box'spindle | N.m | 15000 |
| Range of drilling rod box'spindle rotating | r/min | 5-500 |
| Steps Nos.of drilling rod'spindle speed changed. | Stepless(Mechanical II step) | |
| Range of drilling rod box's feed rate | mm/min | 1.5-300 |
| Velocity of drilling rod box rapid speed | mm/min | 3000 |
| Degrees of drilling rod feed box speed changed | Stepless | |
| Max.flow of coolant system | L/min | 1500 |
| Max.pressure of cooling system | MPa | 4 |
| Diameter of chuck | mm | 3000 |
| Diameter of chuck holding | mm | 500-2000 |
| Diameter of close mode steady supporting | mm | 600-1100 |
| Diameter of open mode steady supporting | mm | 800-2200 |
| Power of headstock's main motor | KW | 160 |
| Power of drilling rod box's main motor | KW | 75 |
| Power of feed motor | KW | 22 |
| Total Power of cooling pump motor | KW | 75 |
