VEF-1 is a fully automatic lithium battery expander, which is used for copper pipe expansion during air conditioning installation and maintenance. It is developed based on the operational needs of craftsmen, featuring innovative structures and operational methods. Intelligent chip control: use various feedback data during the operation process to control the machine, reduce the impact of human factors on the effect of pipe expansion, and improve the accuracy and reliability of pipe expansion. Innovative limit chuck: realize fast clamping and precise positioning, clamping time is 25% faster than ordinary lithium battery expanders, about 80% faster than manual expanders, reducing labor intensity and improving work efficiency. Intelligent operation: under the drive of lithium battery, the automatic pipe expansion can be completed by one key operation, without judging whether the operation is completed according to experience. Good ergonomic design: abandoning the mechanical clutch structure and reducing the running noise; The whole machine is only 1.3kg, and the grip is comfortable. With its own lighting function, it is convenient to operate in dim or narrow spaces. High-performance lithium battery and fast charging function: a single battery can expand 90 3/8 copper tubes; 50W speed charger, full in only half an hour, easy to use at any time, greatly improving work efficiency.

This portable intelligent lithium vacuum pump adopts DC variable frequency brushless motor, high-capacity lithium battery technology, and intelligent control technology. Through integrated air duct design, it optimizes motor heat dissipation and prolongs motor life. Using intelligent control technology to delay drying and evacuation has truly opened the era of vacuum pump intelligence. Around the two axes of "science and technology & lightness", the structural module is summarized as geometric elements. The appearance of the whole machine is accurate and refreshing, and the shape is unique.