EDM Hole Drilling Machine DD703

High-Precision EDM Hole Drilling Machine for Hard-to-Machine Materials

Designed for deep, micro, and angled hole machining on flat,

inclined, and curved surfaces — where conventional drilling fails.

Stable Structure. Reliable Performance.

The DD703 EDM hole drilling machine features a high-rigidity precision cast bed with aging treatment to ensure long-term stability and deformation resistance.
Its integrated machine and electrical control design minimizes connection points, delivering enhanced reliability and consistent machining accuracy.

Equipped with precision ball screws, high-accuracy linear guideways, and a carbide face-sealed rotary head, the machine is engineered for smooth operation and precise micro-hole drilling.
Fast-response spindle drive and intelligent control functions further improve efficiency in deep and small hole machining.

Features Of EDM Hole Drilling machine DD703

High-rigidity precision cast bed with aging treatment, ensuring long-term stability without deformation
Integrated machine design with semi-enclosed stainless steel water tank and acrylic protective panels
Integrated electrical control system designed as part of the machine body, using minimal connections for maximum stability and reliability
Precision ball screws and high-accuracy linear guideways adopted to ensure long-term and stable machining accuracy
Carbide face-sealed rotary head
Spindle equipped with a high-resolution stepping motor with rapid response
Secondary travel with fast up-and-down movement
Automatic spindle retraction when electrode consumption is completed
Multi-stage voltage machining capability
One-key automatic machining functionaccumulated, facilitating

Technical Specification（EDM Hole Drilling Machine）

Worktable Size	mm	500×380
X / Y Table Travel	mm	400×300
W-axis Travel	mm	300
Z-axis Travel	mm	380
Maximum Distance from Worktable Surface to Guide	mm	300
Electrode Clamping Range	mm	Φ0.3~Φ3.0
Maximum Load Capacity	KG	200
Maximum Current	A	35
Maximum Machining Efficiency	m/min	30-60
Overall Dimensions of Main Machine	mm	120011001900

Application of EDM Hole Drilling Machine

The DD703 EDM hole drilling machine is mainly used for machining grouped holes on flat surfaces, as well as various inclined surfaces, curved surfaces, and deep micro holes that are difficult or impossible to process by conventional machining methods.
It is suitable for machining steel, aluminum, copper, castings, alloys, and titanium alloys.
The machine supports both blind holes and through holes with a diameter range of φ0.3–φ3.0 mm.

Basic Structure

The machine consists of the main machine, pulse power supply control cabinet, and operation control box.

Main Machine

The main machine is composed of the machine bed, column, X-axis, Y-axis, Z-axis, and W-axis (manual).

FAQ about EDM Hole Drilling Machine

Q1: What materials can the DD703 EDM hole drilling machine process?

A: It is suitable for machining steel, aluminum, copper, castings, alloys, and titanium alloys.

Q2:What is the hole diameter range of this machine?

A:The machine supports both blind holes and through holes with a diameter range from φ0.3mm to φ3.0 mm, making it ideal for deep and micro-hole drilling.

Q3:Can the machine drill holes on inclined or curved surfaces?

A: Yes. The DD703 EDM Hole Drilling Machine is designed to drill holes on flat, inclined, and curved surfaces, as well as grouped holes and deep small holes that are difficult to achieve with conventional drilling methods.