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DD703-450
EDM Hole Drilling Machine
A precision high-speed small-hole EDM drill engineered to deliver clean, burr-free holes from φ0.15 to 3.0 mm and up to 2,000 rpm spindle speed. Trusted by tool and mold makers worldwide for cooling channels, wire thread holes, and fine production drilling — with the repeatability your quality system demands.
High-Speed Precision Hole Drilling
A high-speed small-hole EDM drilling machine engineered for precision hole machining from φ0.15 to 3.0mm — ideal for mold cooling channels, wire thread holes and production drilling.
One-Click Processing
Automated drilling cycle with one-touch start and intelligent depth control for consistent, repeatable results.
V5 Control System
Advanced V5 discharge controller with multi-voltage support for diverse applications.
W-Axis Electric Lift
Motorized Z column with one-key origin return and position memory for rapid positioning and chip clearing.
3-Axis LCD Display
Real-time X/Y/Z coordinate readout with power-off parameter memory for reliable repeatability.
Precision Self-Locking Chuck
High-accuracy self-locking electrode chuck for fine φ0.15~3.0mm tube drilling with secure clamping.
Auto Voltage Regulation
Intelligent multi-level voltage matching adapts to workpiece thickness and materials.
High Frequency Soft Start
Smooth start improves electrode life and drilling consistency in fine-hole work.
High Pressure Ceramic Pump
Durable high-pressure dielectric delivery for consistent flushing and chip evacuation.
DD703-450 Full Specifications
Machine specifications verified per the Miyang 2026 Product Catalog. Standard configuration shown; contact us for customization.
| Specification | DD703-450 |
|---|---|
| X/Y Stroke (mm) | 450 × 350 |
| Machining Aperture (mm) | φ0.15 – 3.0 |
| Max Workpiece Load (kg) | 360 |
| Spindle Servo Stroke (mm) | 390 |
| 2nd Stroke Z2 (mm) | 300 |
| Max Workpiece Height (mm) | 300 |
| Max Spindle Speed (rpm) | 2,000 |
| Max Output Power (kW) | 4.5 |
| Max Processing Current (A) | 30 |
| Max Operating Pressure (MPa) | 8 |
| Guide Rail Type | Linear Rail |
| Machine Body Material | Steel Structure |
| Control System | V5 |
| Lead Screw | Precision Ball Screw |
| Drive Motor | Hybrid Motor |
| Rotary Head | Tungsten Steel Rotary Pump |
| Water Pump | High Pressure Ceramic Plunger Pump |
| Machine Weight (kg) | 750 |
Built for High-Speed Precision Drilling
One-Click Processing & Auto Knife Lift
Automated cycle reduces setup time; auto knife lift clears chips for uninterrupted drilling.
V5 Control System
Advanced multi-voltage discharge controller for high-speed small-hole EDM drilling.
W-Axis Electric Lift
One-key origin return and position memory enable fast, repeatable operation.
3-Axis LCD Display
Dimmable backlight with power-off parameter memory retains settings across power cycles.
Precision Self-Locking Chuck
Accurate clamping supports fine φ0.15~3.0mm copper tubes with minimal runout.
High Pressure Ceramic Pump
Robust high-pressure dielectric delivery for reliable flushing and consistent results.
Where the DD703-450 Excels
Mold Cooling Channels
Deep, precise cooling-line holes in injection and die-cast molds for uniform thermal control and faster cycles.
Wire Thread Holes
Accurate start holes for wire-cut EDM — clean entry with minimal taper, ready for instant threading.
Hydraulic & Pneumatic Valves
Precise orifice, spool and port holes in hardened valve bodies and hydraulic components.
Fine-Micro Orifices
Supports holes down to φ0.15 mm for nozzles, filters and precision micro components.
Aerospace & Turbine
Cooling and bleed holes drilled in superalloys, turbine blades and high-temperature components.
Fasteners & Inserts
Quick, burr-free clearance holes for screws, inserts and pins in hardened tool steel.