The 2024 Paris Olympics is about to open, and many sports equipment from Chinese companies will also be on the field. With their excellent quality and innovative product forms, they demonstrate China's scientific and technological strength.

Weightlifting is a sport with certain risks. Once problems occur with related equipment, it will endanger the safety of athletes.

The barbells used for weightlifting competitions at the Paris Olympics came from Chinese companies. In order to ensure that the quality of the barbell is foolproof, the developers have carried out a large number of technological innovations.

In 2007, at the World Weightlifting Championships held in Chiang Mai, Thailand, several athletes suffered elbow injuries during the snatch. Zhang Zhiguo, general manager of Hebei Zhangkong Barbell Manufacturing Co., Ltd., a supplier of barbells for the Paris Olympics, analyzed the matter and believed that the problem may lie in the knurling of the barbell bar.
The finely patterned part of the barbell bar is called knurling, which increases the friction of the barbell.

Zhang Zhiguo organized experts to conduct many research and development tests and found that the friction coefficient of the 45-degree pattern of the same specification on the barbell bar is much greater than the friction coefficient of the 30-degree and 60-degree pattern. Based on this,

Zhang Zhiguo asked someone to remake processing tools, design new patterns, and create an original 45-degree pattern, ending the history of only 60-degree and 30-degree patterns in the industry.
This innovation allows athletes to grasp barbells more stably and reduces the damage caused by slipping. With this advantage, Hebei Zhangkong Barbell Manufacturing Co., Ltd. has become a supplier of barbells for Olympic weightlifting competitions many times.

Staff at Zhangkong Barbell Manufacturing Co., Ltd. are stepping up production of ordered products.

"In terms of material selection, we tested nearly a hundred raw materials, and finally selected spring steel materials with excellent performance to produce barbells." Zhang Zhiguo introduced that it has extremely high tensile strength and fatigue strength. It has been tested through load, barbell slip, and corrosion resistance of the plating layer.

The test results far exceed the relevant standards of the International Weightlifting Federation.

The barbell consists of three parts: a barbell rod, a barbell plate and a clamp. After the barbell bar is installed with the barbell plate, it is also equipped with a buckle to fix the barbell plate. The buckles and barbell bars should be "locked" very tightly, and once they become loose or endanger the safety of athletes. The International Weightlifting Federation requires that even when the barbell bar is tilted 45 degrees, the buckle must not be loose.

Through technological innovation, Hebei Zhangkong Barbell Manufacturing Co., Ltd. can ensure that even if the barbell bar is vertical and the external force acts, the buckle will not loosen at all.

The 2024 Paris Olympics is about to open, let us look forward to the Olympic athletes shining on the field