I. Machine Usage:

  Mainly used to process deep holes on the tube plate of heat exchanger for petrochemical, boiler, and thermoelectricity industries.

  Using carbide external chips cleaning gun drill or internal chips cleaning BTA drill, with advanced technology, high processing accuracy, and stable quality.

II. Main Technical Specifications:

  　  1. Range of Drilling

1.1 Max. Diameter of Workpiece　　　　　　　　　　 　　Ф4000mm

1.2 Max. Thickness of Workpiece　　　　　　　　　　　　750mm

1.3 Drilling Diameter (spiral drill)                 Φ7~Φ24mm

　　　　　            (BTA drill)　　                Ф16~Ф40mm

2. Dimension of Clamping section of Worktable Bendt Plate (W×H)

 4200×2450mm

3. Drilling Head

3.1 Quantity　　　　　                                         2

3.2 Center Distance of Spindle (adjustable)                    170~220mm

3.3 Rotating Speed of Spindle (frequency conversion)           750~3000r/min

3.4 Power of Spindle Motor　　　　　　                         2×11kW

4. Moving of Longitudinal Slipway (X-axis)　　　　　　

4.1　Stroke of X-axis　　　　　　　　　　　                    4000mm

4.2　Max. Moving Speed of X-axis　　　　　                     4m/min

4.3　Positioning Precision of X-axis　　　　　　　             0.05mm on full length

4.4　 Servo Motor Power of X-axis　　　                        4.5kW

5. Moving of Vertical Slipway on Column (Y-axis)

5.1　 Stroke of Y-axis 　　　　　　　                          2000mm

5.2　 Max. Moving Speed of Y-axis　                            4m/min

5.3　 Positioning Precision of Y-axis　　　　　                0.05mm on full length

5.4   Servo Motor Power of Y-axis　                            4.5kW

6. Moving of Double-Spindle Infeeding Slipway (Z-axis)

6.1　Stroke of Z-axis　　　　　　　　                        900mm

6.2　Infeeding Speed of Z-axis　　　　　　　                 0~4000mm/min

6.3 Max. Infeeding Force　　　                               28kN

6.4 Servo Motor Power of Z-axis                              2kW

7. Hydraulic System

7.1 Pressure/Flow of Hydraulic Pump  　　　　　              1.5~3.5MPa/12.5L/min

7.2 Motor Power of Hydraulic Pump　　　　                    1.1kW

8. Cooling System

8.1Pressure/Flow of Cooling Pump　　　　　　　                5MPa/2×200L/min

8.2 Motor Power of Cooling Pump　　　　　　                   2×18.5kW

8.3 Capacity of Cooling Tank　　　                            2200L

8.4 Flow of Magnetic Tape Filter                              2×200L/min

8.5 Total Motor Power of Filter　                             2×0.7kW

8.6 Precision of Filtration　　　　　　　　　　　　　　　　　 30μm

9. Chip Removal　　　　　　　　　　　　　                                   

9.1 Type of Chip Cleaner　　　　　                       plate-type chain

9.2 Speed of Chip Removal　　　                          2m/min

9.3 Motor Power of Chip Cleaner                          0.75　kW

9.4 Power/Flow of Pump Motor 　　　　　　                2×0.45kW/2×200L/min

10. Electrical System

10.1 CNC System　　　　　　　　　                       FAGOR8055

10.2 No. of CNC Axes 　                                 5

10.3 Motor Power 　　　　　　　　                       85kW

11.Overall Dimension (L×W×H)　　　　                 9×6×4.4m

12. Machine Weight 　　　　　                          Approx. 75t

13. Processing Precision

13.1 Surface Roughness                                      Ra1.6~3.2

13.2 Precision of Hole Dia. 　                              IT8~IT10

13.3 Roundness of Hole　                                    0.02mm

13.4 Straightness of Holes                                  0.1/100mm

13.5 Tolerance of Hole Center Distance                      ±0.1mm

III. The important mechanical, hydraulic, electrical components of machine, such as CNC system PLC, servo motor, driver, inverter, linear rolling guide set, precious ball screw set, precious epicyclic reducer, hydraulic pump, and hydraulic valve are all imported.