Application:
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486.1 kilometers, this is the highest speed of the 380A in Beijing-Shanghai high-speed rail, which set a new world record for the speed of high-speed train test operation.
If the high-speed train is like a long-distance runner, the wheel is the foot, the bogie is his leg, and the positioning arm of Ning Yunzhan is the ankle. 
Each bogie has a weight of 1.1 tons. The positioning arm falls on the nodes of the four wheels. Each contact surface is less than 10 square centimeters. When the train runs at 300 km/h, the contact surface is subjected to an impact force of twenty or thirty tons. . If the gap is large, the wheel may be loose; if it is completely welded, the bogie can no longer be opened, affecting the train maintenance.
Ning Yunzhan is responsible for this process, not only in China, but also on all high-speed rail production lines in the world. According to international standards, the grinding space reserved for hand is only about 0.05 mm, which is equivalent to a thin hair. For the past ten years, Ning Yunzhan has displayed his own stunts in this thin and silky space.
The mill is small, the bogie can't fall, and it's getting bigger. The motherboard worth 10 million yuan will be scrapped. Ning Yunzhan’s colleague said that Ning Yunzhan’s unique work is also here. He can weave the vague vertical lines on the surface of the cut into a fine, frictional net like the embroidery. “When 0.1mm, There are probably more than a dozen people in China who can do it. At 0.05 mm, no one else can do it. At present, only he can do it."
Ning Yunzhan exhibited this magician-like hand and passed on his father's genes. His father was a blacksmith in the village. When Ning Yun was a child, he often used his father to help the villagers polish their furniture. Therefore, he liked to learn crafts since he was a child.
After graduating from junior high school, Ning Yunzhan was admitted to the railway technical school. Unexpectedly, in 2006, he will be one of the first to become the first Chinese to learn the 380A train bogie grinding technology. Ning Yunzhan’s control and precision control of the technology has made Japanese experts erect. thumb.
Ning Yunzhan became the first hand of high-speed rail grinding, and soon became the squad leader. However, not long after, he found the leader and said that he did not want to be the monitor, or let me work. He said that he is not interested in management, and he feels that he is better at what he is good at.
Ning Yunzhan’s home is nearly half an hour’s drive from the factory. His communication with his wife is basically on the way to and from work every day, because when he arrives home, he is busy again. In this small courtyard of more than 30 square meters, most of the sites are Ning Yunzhan. These abrasive tools are bought online at their own expense, not for anything else, but for practicing crafts. At first, the wife did not understand. Because Ning Yunzhan did it until 8 or 9 o'clock in the evening, she did not understand why her husband was busy with work. Ning Yunzhan’s daughter is also outspoken in the face of reporters, saying that she does not want to do her father’s work when she grows up.
The six-year-old child has his own world. Ning Yunzhan said that he understood his daughter's thoughts. Just like the original, it was because his father respected his choice that he was admitted to the railway technical school. The father hoped that Ning Yunzhan would be a technical expert who could stand alone and be inseparable from the unit. After more than 20 years of hard work, he did it.
In 2010, it was the key moment for the 380A to prepare for the high-speed. In this year, the father who suffered from leukemia for seven years was admitted to the hospital for the third time. Although Ning Yunzhan realized that he had not spent much time with his father, he could not accompany him every day. Beside me. The news of his father’s death was on his way to work, when he was very uncomfortable. 
With the success of the 380A sprint high speed, Ning Yunzhan has invested in the production of higher speed trains, and has continuously developed new projects and new processes in the work, and has won five national technology patents.
Ning Yunzhan said that craftsmen are working hard by strength, seeking truth from facts, and trying to do a good job in their hands. This is the duty. He said that he would continue to do this work and do it until he can do it.
One-mindedly engaged in technology, improper squad leader is not an official, Ning Yunzhan seems to have different pursuits from many people now. Ning Yunzhan said, I am not perfect, but my product must be perfect. To do this, it takes a lifetime to do the craft.
If every piece of Chinese manufacturing is behind such a craftsman who pursues perfection, Chinese manufacturing can cross the threshold of “quality†and jump to “quality manufacturingâ€, allowing more Chinese products to be released in the global market. More dazzling light.
Huge power range from 2.2KW~160KW
Support up to 128 stops
Speed up to 4 m/s ( Up to 6m/s soon)
Support up to 8 car group control with DBD system
Meet the EN81-20 standard, UCMP, door lock short detection, door bypass function, pit inspection function Selective collection
Encoder supported : SIN/COS & EnData & ABZUVW & ABZ
Feature:
Field proven high speed technology utilizing KEB F5 inverter and AFE (Active Front End) for regenerative function
ELGO landing system for absolute floor encoding and eliminate hoist way terminal switches
Support UCMP function
ETSL function for reduce stroke buffer applications
Advance isolated CAN ports for stable communications
Applications:
Up to 64 stops.
Speed up to 8 m/s.
Simplex, duplex, and up to 6 car group.
[Great country craftsman] high-speed rail grinder - Ning Yunzhan
The CRH380A train has been tested on the Beijing-Shanghai high-speed railway at the world's first speed. It is the only model that Premier Li Keqiang has promoted to China's high-speed rails to the world. It can be said that it is an international business card of China's high-speed rail. To create this business card, there is an indispensable person: high...
The CRH380A train has been tested on the Beijing-Shanghai high-speed railway at the world's first speed. It is the only model that Premier Li Keqiang has promoted to China's high-speed rail to the world. It can be said that it is an international business card of China's high-speed rail. To create this business card, there is an indispensable figure: the high-speed rail chief grinder - Ning Yunzhan.