Manufacturing Technology

End-to-end precision manufacturing and environmentally friendly quality control
The company has established a comprehensive, modern corporate system covering research and development, production, and other functions, and adheres to meticulous management at every stage of the manufacturing process to ensure high product quality and exceptional consistency.

To meet the stringent environmental requirements of the international market, we not only require our suppliers to provide SGS reports but have also introduced state-of-the-art U.S.-made environmental testing equipment to conduct multi‑stage screening of raw materials, ensuring that all our products comply with international environmental standards such as RoHS and REACH. By rigorously controlling both manufacturing processes and environmental quality, we deliver reliable, high‑quality assurance for every microphone, helping our customers gain a competitive edge in the global marketplace.
By rigorously controlling both manufacturing processes and environmental sustainability, we ensure every microphone meets the highest standards of quality, helping our customers gain a competitive edge in the global market.

Sound head manufacturing

Sound Head Manufacturing | Acoustic Core, Clean Production

We independently master key manufacturing processes such as diaphragm assembly, magnetic circuit matching, and voice coil positioning. By employing precision dispensing and micron‑level gap control, we ensure that the driver delivers high sensitivity, low distortion, and exceptional consistency, laying the foundation for superior sound quality right at the heart of the product.

Connector Material Selection | Rigorously Chosen for Quality, Ensuring Stable Connections

We have established strategic partnerships with globally renowned connector suppliers, carefully selecting high‑quality audio‑specific connectors. Each batch undergoes rigorous testing for electrical continuity, insertion/extraction force, and durability, ensuring clean, stable signal transmission and providing robust assurance of the microphone’s long‑term reliability.

Song Guang Electronic Connector
Songguang Electronic Injection Molding

Injection Molding Process | In-House Mold Design, Intelligent Molding

Leveraging our in-house mold design and machining capabilities, we achieve rapid development and precision manufacturing of structural components. Equipped with robotic automatic part‑handling and vision‑based inspection systems, we monitor injection‑molding process parameters in real time, ensuring dimensional accuracy and batch-to-batch consistency.

Painting and Surface Treatment | Green Coating—Eco-Friendly and Aesthetic

We employ eco-friendly UV coatings, leveraging a semi‑automated spray line and a team of highly skilled technicians to deliver efficient, flexible coating operations. By adopting a workflow that combines “equipment‑controlled, metered spraying” with meticulous manual touch‑ups, we ensure both uniformity and strong adhesion while precisely addressing the intricate details of complex components. This approach not only boosts productivity but also guarantees that every surface meets stringent quality standards.

Songguang electronic fuel injection and paint spraying
Song Guang Electronic Assembly

Product Assembly | Lean Integration, Consistent Quality

The assembly line integrates semi‑automatic dispensing, laser marking, and in‑line inspection equipment, coupled with poka‑yoke tooling and standardized operating procedures, to achieve end‑to‑end control over assembly quality. Through ongoing training and process optimization, we ensure that first‑pass yield remains consistently at a high level.

Production Capacity and Quality Control System

Regular monthly production capacity: 300,000 pcs
Maximum monthly production capacity: 360,000 pcs
Based on our end-to-end quality control system, we integrate environmental protection requirements into every stage, from raw materials to finished products, ensuring that our offerings meet rigorous standards in performance, reliability, and environmental compliance, thereby delivering trusted audio solutions to our customers.

Song Guang Electronics

Production equipment

Mold Room

Mold Room

Precision injection molding machine

Precision injection molding machine

Precision Wire Tester

Precision Wire Tester

Haitian injection molding machine

Haitian injection molding machine

Dispensing machine

Dispensing machine

Tapping machine

Tapping machine

Mixing console

Mixing console

Polarity Tester

Polarity Tester

Automation equipment

Numerical control

Numerical control

Automatic screw machine

Automatic screw machine

Semi-automatic screw machine

Semi-automatic screw machine

Automatic screw feeding machine

Automatic screw feeding machine

Automatic rotary sandblasting machine

Automatic rotary sandblasting machine

Quality Assurance

X-RAY

X-RAY

RoHS1.0

RoHS1.0

Cable 360-degree torsion test

Cable 360-degree torsion test

Abrasion resistance test

Abrasion resistance test

RoHS testing machine

RoHS testing machine

Vibration testing

Vibration testing

Salt Spray Test

Salt Spray Test

Cable Bend Test

Cable Bend Test