In high-end manufacturing industries such as precision tubing, heat exchangers, optoelectronic components, and metal composite pipes, the indium coating process for the inner circular surfaces of tubing demands extremely high equipment precision, stability, and adaptability. Traditional manual indium coating and ordinary flat indium coating equipment struggle to conform to the inner curvature of the tubing, easily leading to uneven coating, poor adhesion, missed coatings, and peeling, failing to meet the production standards of precision tubing. Shanghai Hanling has specifically developed an ultrasonic indium coating machine for inner circular curved surfaces of tubing, leveraging mature ultrasonic vibration coating technology and standardized, customizable equipment parameters to solve the pain points of traditional inner circular indium coating processes, providing an efficient and stable solution for mass production of precision inner circular indium coating in industrial applications.
This equipment is equipped with a mature and stable power system, with a rated power range of 12-70W, adaptable to various working conditions from light-duty precision coating to heavy-duty industrial mass production. The low-power setting is suitable for fine indium coating operations on thin-walled precision pipes and micro-tubes, avoiding workpiece damage caused by excessive power. The high-power setting can meet the stable coating needs of thick-walled pipes, large-size pipes, and high-hardness substrates, providing ample and uniform power output, adapting to the differentiated production needs of various industries, and making the equipment highly versatile.
The core vibration frequency of the equipment adopts the industry-standard 20kHz, ensuring stable vibration and a delicate coating effect, representing the optimal conventional frequency for precision indium coating. It also supports multi-frequency customization services, allowing for personalized adjustments based on the customer's workpiece material, pipe diameter, and indium coating process requirements. This completely breaks through the limitations of conventional equipment with fixed frequencies and poor adaptability, matching the production needs of various special working conditions and adapting to customized and refined production scenarios.

Precise and controllable temperature and amplitude parameters ensure extremely stable indium coating quality. The equipment operates within a temperature range of 150-400℃, with wide-range temperature control adaptable to indium materials with different melting points and various metal and non-metal pipe substrates. Uniform heating and precise temperature control prevent problems such as localized high-temperature burning of the workpiece and poor coating adhesion at low temperatures. The adjustable vibration amplitude range is 3-20μm. Micron-level amplitude control ensures more uniform melting and spreading of indium, guaranteeing a tight coating adheres to the inner diameter of the pipe while preventing defects such as coating ripples and uneven thickness caused by excessive amplitude, significantly improving coating yield.
The equipment is equipped with a custom-designed vibratory head with a curved fit, perfectly matching the outer diameter of various standard pipes. It precisely conforms to the curved inner surface of the pipe, solving the problems of traditional equipment's inability to fit curved surfaces and the existence of coating dead zones. This achieves full coverage of the inner diameter of the pipe, uniform indium coating without blind spots, resulting in a smooth, flat coating with extremely strong adhesion, resistant to peeling and flaking even after long-term use.
In terms of power supply, the equipment uses the standard industrial voltage of 220V±10%, 40/60Hz, 6A, compatible with the power supply environments of most factories and workshops in China. No additional circuit modifications or dedicated power supply equipment are required; it is ready to use immediately upon connection. Easy installation and wide adaptability effectively reduce equipment deployment costs for enterprises. The equipment features a dual-mode operating system, supporting free switching between intermittent and continuous modes. Continuous mode is suitable for large-scale standardized mass production, ensuring stable output and improving production efficiency. Intermittent mode is suitable for small-batch, multi-batch, and fine sample processing, flexibly adapting to diverse scenarios such as R&D, prototyping, and small-batch production.
Overall, the Shanghai Hanling Ultrasonic Indium Coating Machine boasts professional parameter configuration, stable performance, and strong adaptability, balancing standardized mass production with personalized customization needs. With its precise temperature control, adjustable amplitude and power, dedicated arc-shaped vibrating head, and dual operating modes, it perfectly solves the industry challenge of indium coating on inner diameter tubes. It is widely used in precision pipe fittings, heat exchange equipment, new energy, and optoelectronic materials, making it a core piece of equipment for enterprises to upgrade their inner diameter indium coating processes and improve quality and efficiency.