With the rapid development of the electronic manufacturing industry, the requirements for the precision, stability and flexibility of soldering processes are increasingly stringent. The Shengdian Offline Single-Head Selective Wave Soldering Machine SD-450 has become an ideal choice for electronic production enterprises due to its compact design, full-function configuration and excellent performance. It can not only meet diverse soldering needs but also ensure the consistency of product quality, empowering and improving the efficiency of production lines.

As a full-functional offline model, the SD-450 has many prominent advantages. Its compact footprint does not require a lot of production space, and it can be flexibly placed next to the production line for soldering work. The line configuration method is diverse, adapting to different production layouts. In terms of operation mode, it adopts the design of PCB board movement, while the spraying, preheating and soldering platforms are fixed, which effectively improves soldering precision and ensures high soldering quality. At the same time, the equipment is fully computer-controlled. All soldering parameters can be conveniently set and saved on the computer to generate exclusive configuration files, which is not only user-friendly in operation but also facilitates the traceability and data management of the production process, helping enterprises achieve standardized production.

Equipped with a software system developed based on WINDOWS 10, it supports direct path programming using PCB images. Key parameters such as path start point, soldering movement speed, idle travel speed, Z-axis height and wave height can be precisely set. A real-time monitoring camera is installed, and the soldering process can be observed in real-time through the display screen. Key parameters such as temperature, speed and pressure are fully monitored by the software to ensure the soldering process is controllable. In addition, it is equipped with a standard automatic wave height correction function, and the correction interval can be customized. The soldering data of PCB boards (including size, image, flux type, solder specification, tin temperature, etc.) is stored centrally, facilitating the reuse and traceability of similar products.

Adopting a lightweight design, it ensures the rigidity of the platform while improving the operating speed. The motion system consists of a three-axis platform, ball screws, linear guides, servo motors and servo drives, with a positioning accuracy of up to ±0.1mm, low noise and smooth movement during operation. The mobile platform is equipped with a dustproof plate to effectively prevent dirt from dripping into the ball screws and extend the service life of the equipment.

Selected German-origin piezoelectric ceramic jet valves are suitable for fluxes with a solid content of less than 5%, ensuring precise and uniform spraying. The flux is stored in a pressure tank to ensure constant spraying pressure, which is not affected by the remaining amount of flux, thus guaranteeing the stability of the soldering process.

Adopting an upper and lower infrared preheating design, the preheating power reaches 8kw, the temperature adjustment range is 25-240℃, and the heating ratio can be freely adjusted through the computer. It can provide uniform and precise preheating effects according to the soldering needs of different PCB boards, laying a foundation for high-quality soldering.

Equipped with a 15KG capacity tin furnace, electromagnetic pump and mechanical pump are optional. The inner tank of the tin furnace is made of titanium alloy to eliminate the risk of leakage, and the external heating plate ensures uniform heat transfer. Parameters such as tin furnace temperature, nitrogen temperature and wave height can be set by computer. Combined with an on-line nitrogen heating device, it can not only ensure good wettability of the tin liquid but also reduce the generation of oxides. The tin furnace is equipped with over-temperature and over-liquid level alarm devices, and adopts quick connector wiring. There is no need to rewire when replacing the tin furnace, improving maintenance efficiency. The equipment is equipped with 5 standard small wave soldering nozzles made of alloy steel, which support custom shapes to meet the needs of different soldering scenarios.

The PCB board is manually loaded and unloaded, and equipped with universal fixtures for precise positioning; the whole machine adopts a steel structure design, and a base plate is installed at the bottom to effectively improve the stability of the machine and reduce vibration during operation.

With precise control, stable performance and flexible configuration, the SD-450 can be widely used in various selective soldering scenarios of electronic components, providing efficient and reliable soldering solutions for electronic manufacturing enterprises, helping enterprises improve production efficiency and product quality, and gain an advantage in the fierce market competition.