DD703.40 Fast Speed EDM Drilling Machine
The maximum depth ratio could be 300:1.
3 stage discharge voltage, can drill diameter from 0.2mm to 3.0mm.
XY hard rail, Z and W linear rail,Z with stepper motor.
With DRO for XY,can show the position of XYZ，with depth setting for Z axis.
Auto deep control for blind hole.
Accuracy (hole straightness) is less than 0.05 mm.
Can drill on oblique and curved surface directly.
Fast processing speed and low consumption.
Can use city water as coolant, low cost and no pollution.(Pure water is better)
Main Feature:
The maximum depth ratio could be 300:1.
3 stage discharge voltage, can drill diameter from 0.2mm to 3.0mm.
XY hard rail, Z and W linear rail,Z with stepper motor.
With DRO for XY,can show the position of XYZ，with depth setting for Z axis.
Auto deep control for blind hole.
Accuracy (hole straightness) is less than 0.05 mm.
Can drill on oblique and curved surface directly.
Fast processing speed and low consumption.
Can use city water as coolant, low cost and no pollution.(Pure water is better)
| Model | DD703.30 | DD703.40 | DD703.50 | DD703.63 | DD703.80 |
| Working table size(mm) | 360×480 | 540×780 | 650×1000 | 750×1100 | 980×1350 |
| Stroke X/Y（mm） | 350×450 | 400×500 | 500×630 | 630×800 | 800×1000 |
| Electrode diameter（mm） | Φ0.2-Φ3.0 | Φ0.2-Φ3.0 | Φ0.2-Φ3.0 | Φ0.2-Φ3.0 | Φ0.2-Φ3.0 |
| Working stroke Z axis (mm) | 300 | 300 | 400 | 500 | 500 |
| Spindle stroke W axis（mm） | 300 | 400 | 500 | 500 | 500 |
| Distance between working table & guider(mm) | 300 | 350 | 400 | 500 | 500 |
| Power （V/Hz） | single phase 220V / 3 Phase 220 230 380 415V /50, 60HZ | ||||
| Max. working current ( A) | 30 | 30 | 30 | 30 | 30 |
| Capacity of working fluid （L） | 25 | 25 | 25 | 25 | 25 |
| Max.pressure of working fluid （MPa） | 7 | 7 | 7 | 7 | 7 |
| Dimension（L×W×H）(mm) | 1150×1100×1700 | 1600×1300×1800 | 1800×1500×1900 | 2100×1700×2000 | 2400×1900×2000 |
| Weight（kg） | 600 | 1100 | 1600 | 2200 | 2800 |
Company & Workshops
BOFENG Machinery is a group with 4 factories. BOFENG has about 60000 square
meter work shop.
Production Equipments
The main parts of our machines are processed by cnc machine. We have gantry
type cnc milling machine, cnc vertical machining center, gantry type cnc
grinding machine, cnc laser cutting machine, cnc bending machine, cnc shearing
machine.
Test & Inspection
All machines will be tested before shipment.
Package & Delivery
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Robust frame with “C” mast.
With height adjustable diamond guider.
Four axes independent (X/Y/U/V) work;
Taiwan linear rail, Grade P or H, Ball screw. C2 or C3.
Special Tensioning mechanism for molybdenum wire, keep stable cutting.
Stepper motor is standard, Servo motor is optional.
Tolerance can keep in 0.005mm, Roughness Ra 0.8.
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