Ultrafine Gold Wire Drawing Machine

Ultrafine Gold Wire Drawing Machine

The ultra-fine gold wire drawing machine is a precision equipment specifically designed for producing high-precision gold wires with a diameter of 10-30 microns (0.01-0.03 mm), widely used in semiconductor packaging, precision electronics, medical equipment, high-end jewelry and other fields. Due to the extremely small diameter of the gold wire, the equipment needs to have core technologies such as ultra-high precision tension control, nanoscale molds, and clean environments.

Definition

The ultra-fine gold wire drawing machine is a precision machining equipment that gradually draws the initial gold wire (usually 0.05-0.1 mm) to 10-30 μm through multiple micro stretching processes, and its wire diameter accuracy needs to be controlled within ± 0.5 μm.

Technical Difficulties

High risk of wire breakage (small diameter, low tensile strength);
Strict surface quality requirements (no scratches, no oxidation);
Difficulty in tension control (requiring nanoscale dynamic adjustment);
Mold life management (high hardness materials, easy to wear out after long-term use).

Structural Characteristics

Feeding
The initial wire diameter is 0.05-0.1mm (provided by the front middle puller). The constant tension release adopts a motor+brake to ensure stable feeding.
Stretching System
Multi level micro stretching: The reduction rate of each pass is 5-10% to avoid excessive stretching that may cause wire breakage. Adopting a tower wheel layout.
Tension Control
Closed loop feedback regulation: The laser velocimeter monitors the line speed in real time, and the PID algorithm dynamically adjusts the winding servo motor.
Take-up System
Precision wiring: Using a servo motor and ball screw driven wire guide to ensure even winding of the gold wire, avoiding wire stacking or edge collapse.

Ultrafine Gold Wire Drawing Machine Datasheet

Item/Model	60S/60F	85S/85F	100F
Inlet Wire Dia.	0.018-0.038 mm	0.027-0.057 mm	0.055-0.120 mm
Outlet Wire Dia.	0.012-0.025 mm	0.017-0.035 mm	0.022-0.040 mm
Line Speed (Max.)	600-1200 m/min	800-1500 m/min	1800 m/min
No. of Dies (Max.)	12	15/16	24
Reduction Rate	6%, final: 5%	6%, final: 5%	8%, final: 7%
Drawing Method	Spray sliding type	Spray sliding type	Spray sliding type
Tower Wheel	φ60	φ85	φ100
Main Motor	Servo, 0.75 KW * 4 / 1.5 KW	2.2 KW	3 KW
Take-up Motor	Servo, 0.4 KW	0.55 KW	1.1 KW
Traverse Motor	0.4 KW	0.4 KW	0.4 KW
Pump Motor	90 W	90 W	120 W
Lighting	/	220V, 40W	220V, 40W
Brake	24V, 22W	24V, 22W	24V, 30W
Speed Control	Potentiometer	Potentiometer	Potentiometer
Traverse Method	Ball screw transmission	Ball screw transmission	Ball screw transmission
Lubrication	Spray type	Spray type	Spray type
Overall Size	1450x1020x1580 mm	1520x1090x1580 mm	1825x1055x1660 mm
Total Weight	1.0 T	1.0 T	1.1 T

Ultrafine Gold Wire Drawing Machine Application

The 0.01-0.03 mm ultra-fine gold wire drawing machine is the core equipment for high-precision manufacturing, with its technical core consisting of nanoscale molds, constant tension control, and clean environment. With the development of semiconductor miniaturization and precision medical devices, this equipment will play a more critical role in high-end electronics, biomedicine, aerospace and other fields, and continue to evolve towards finer, smarter and more environmentally friendly directions. The specific applications are as follows:
Semiconductor Packaging (key alloy wire)
Wire diameter: 20-30 μm
Purpose: To connect chips and lead frames, requiring high conductivity and fatigue resistance.
Equipment requirements: dust-free environment, wire breakage rate <0.1%.
Medical Minimally Invasive Guide Wire
Wire diameter: 15-25 μm
Purpose: Cardiovascular intervention surgery, requiring ultra-high flexibility and biocompatibility.
Equipment requirements: Medical grade clean room with zero surface contamination.
High Precision Electronic Components
Wire diameter: 10-20 μm
Purpose: Micro inductor, antenna, requiring extremely low resistance loss.
Equipment requirements: Online impedance detection to ensure stable electrical performance.