Variable Frequency Drives (VFDs) play a crucial role in the operation of cranes and hoists. They are used to precisely control the speed and torque of electric motors, thereby enhancing operational efficiency and control accuracy.   On March 16, with the final cable strand accurately positioned, the main cable pulling work for Fenglin Special Bridge on the Xingyi Belt Expressway was successfully completed. This marked a significant milestone in the bridge’s superstructure construction and laid a solid foundation for achieving the goal of full completion by the end of 2020.   The high-performance, high-power variable frequency drives (VFDs) provided by V&T Power played an important role in ensuring the smooth progress of the bridge’s main cable installation due to their stable performance and excellent reliability.   Fenglin Special Bridge is China’s first large-span steel-concrete composite beam suspension bridge built in mountainous terrain. The vertical height from the bridge deck to the valley floor reaches 364.2 meters—equivalent to approximately 120 stories. The lifting of the prefabricated central crossbeam at Tower No. 4, weighing up to 1,470 tons, set a world record for the heaviest prefabricated concrete component hoisting in mountain canyon bridge construction.   Main cable construction is one of the most critical and technically challenging processes in the building of Fenglin Bridge, as it forms the primary load-bearing system of a suspension bridge. The bridge has two main cables—one on each side—each approximately 971 meters long, with a total weight of 4,131 tons. Each single cable consists of 131 strands (including 4 backstays), and each strand is made up of 91 zinc-aluminum-magnesium-coated steel wires with a diameter of 5.45 mm. The maximum weight of a single cable strand is about 16.4 tons.   The winch systems installed on both sides of the bridge have extremely high requirements for the performance, stability, and reliability of the VFDs. The V&T V6-H torque vector control VFD performed exceptionally well, playing a key role in the main cable pulling process. Its advanced technology and product stability have received high praise and recognition from users.   During equipment commissioning, Ma, a V&T technical engineer, had to walk across the “catwalk” on the bridge. He said: “Standing over 360 meters above the valley floor just thinking about it makes my legs weak. This time really pushed my fear of heights to the limit. Walking on the catwalk feels like walking through clouds—nervous yet incredibly impressive. I deeply admire the hard work, selflessness, and perseverance of the bridge builders, who embody the spirit of the ‘Iron Army.’”   Since the start of construction, Fenglin Special Bridge has been widely covered by major media outlets including CCTV's *News Broadcast*, *Morning News*, *Great Transportation of China*, Xinhua News Agency, People's Daily Online, and local...

INVITATON Thailand Manufacturing Expo 2025 Join V&T to experience advanced industrial machinery, automationtechnology, and advanced manufacturing solutions. Booth No.Hall 98-8D20DATE 18th-21st JUNE LOCATION: Bangkok International Trade and Exhibition Centre (BITEC)

V&T’s high-power electric vehicle motor controller has successfully entered the “Roof of the World” in large quantities. The rugged quality of V&T products has been proven in mine sites in Qinghai and Xizang. Recently, 90-ton all-electric wide-body dump trucks equipped with V&T motor controllers have begun operating in high-altitude mining areas in Qinghai (about 4,300 meters above sea level) and Xizang (about 5,000 meters above sea level). This success brings more confidence to China’s new energy vehicle industry and also inspires V&T to keep pushing forward and aiming higher. At a large mine in Xizang, at an average altitude of 5,000 meters, traditional fuel-powered trucks used to carry rock and ore from mountain tops down. In this environment, low air pressure causes poor engine intake, incomplete combustion, reduced power, higher fuel consumption, and greater pollution. Now, a group of energy-saving and eco-friendly 90-ton all-electric wide-body dump trucks has arrived. These vehicles solve the problems of weak power and high fuel cost in high-altitude, low-oxygen conditions. The truck automatically adjusts between single or dual motors based on real-time working conditions through the high-power V&T motor controller. This lowers driver workload, improves efficiency, and helps protect the environment. The dual-motor braking system can recover up to 580 kW of energy, making full use of downhill energy and improving overall economic performance for customers. In these mines, trucks often run heavily loaded downhill for long periods. When the driver brakes, the mechanical energy is turned into electricity by the V&T motor and controller system and stored back into the battery. According to the fleet manager, on a 4.5-kilometer route, each electric truck saves over 2,000 yuan per day compared to fuel trucks—around 25 to 30 trips. Working together with vehicle manufacturers, V&T shows strong reliability under extreme conditions like high altitude and steep slopes. It reflects China’s progress in electric mining trucks and motor control technology. Through real action, V&T supports the mining industry with a new driving force and contributes to greener, safer, and more efficient mining transport.

We are excited to invite you to attend the Metalloobrabotka 2025 exhibition, which will be held from May 26-29, 2024, at the Expocentre Fairgrounds in Moscow, Russia.    Booth No：12B25  Date：26th-29th May 2025  Address：EXPOCENTRE FAIRGROUNDS/14,Krasnopresnenskaya nab.Moscow,Russla,123100 Our company, Shenzhen V&T Technologies Co.,Ltd, is a leading supplier of Medium and Low voltage converters, AC drives, motor controllers, elevator products, and other industrial automation solutions. We are committed to providing our customers with high-quality products and services that meet the highest standards of performance, reliability, and efficiency.

A giant mining truck that can generate electricity and make money The advent and successful application of a V&T new energy mining vehicle motor controller has greatly reduced the cost of mining and transportation, and installed a new engine for the development of the mining industry.   Wide-body mining vehicles are heavy vehicles used in large open-pit mines to complete rock and earth stripping and ore transportation tasks. They travel back and forth between mining sites and unloading sites, and have the characteristics of short transportation distance and heavy load. Fuel consumption accounts for about 60% to 80% of the total transportation cost. How to control fuel costs has become a key issue in determining the profit and loss of transportation companies.   V&T new energy mining vehicle motor controller has been successfully applied in batches to a domestic hybrid "giant" mining vehicle. Its advent and successful application have greatly reduced the cost of mining and transportation, and installed a new engine for the development of the mining industry. The "Big Mac" mining truck is equipped with a V&T motor controller and a four-in-one integrated controller, which integrates drive motor control, oil pump, air pump, high-voltage power distribution, DCDC, brake power generation feedback and charging functions. It has high power density and meets the characteristics of low-speed and high-torque of the drive motor, heavy-load climbing and heavy-load downhill braking power generation requirements, realizing safe and efficient operation under all-weather conditions in different regions. As the depth of open-pit mining increases year by year, the phenomenon of large slopes and multiple bends makes mining operations increasingly difficult. About 50% of a transportation cycle is uphill and 50% is downhill. During the heavy-load downhill braking process, the new energy mining truck uses the V&T motor controller to perform feedback braking and power generation to achieve energy recovery and save energy. The power consumption is about half that of traditional vehicles.   There is huge room for future development of electric wide-body mining trucks. V&T is willing to use its excellent wide-body mining truck electronic control solutions and successful application experience to make new contributions to the construction of "green" mines in my country!