TOPSCNC DK7740ZG WIRE EDM MACHINES

Technical Description

The TOPSCNC DK7740ZG is a precision CNC wire EDM (Electrical Discharge Machining) machine designed for high-accuracy metal cutting applications. This machine features X-axis travel of 15.75 inches (500mm) and Y-axis travel of 19.69 inches (400mm), enabling it to accommodate workpieces up to 900x600mm maximum dimensions. The working table measures 840×540mm with a maximum load capacity of 1000kg. The DK7740ZG delivers exceptional machining precision of ≤0.01mm with a maximum machining speed of ≥200mm²/min. Surface roughness achievable with single-pass cutting reaches Ra≤2.5μm, improving to Ra≤1.0μm with three passes and Ra≤0.8μm with five passes. The machine handles maximum workpiece thickness of 300mm and supports taper angles up to ±6° for 80mm thickness. This machine utilizes molybdenum wire electrodes ranging from φ0.15 to φ0.25mm diameter (φ0.18mm recommended) with adjustable wire feed rates from 1 to 11.4m/sec. The DQE-DC-03 CNC controller manages 4-axis simultaneous control (X, Y, U, V axes) with servo motors and minimum control resolution of 0.001mm. Power specifications include 380VAC/50Hz input with maximum working current of 12A and 1.5kW power consumption. The machine incorporates a 90L water tank with paper filtration capability using JR3A working fluid. Overall dimensions are 1900×1400×2060mm with a machine weight of 2600kg.