Hengyan Machinery Equipment Co., Ltd. is a wholly-owned enterprise specializing in the production of concrete pump pistons and seals in China. It is located in the provincial industrial park of Juling County, Xingtai City, Hebei Province. It is close to Xingheng Expressway, with convenient transportation and a prominent geographical advantage.

 The company was formerly known as Huihong Sealing. Since 2003, under the guidance of experts from the Tianjin Rubber Research Institute, it has been developing new types of concrete pump split pistons. In 2005, it launched several rubber integral pistons. In 2006, it independently developed imported polyether split pistons and special sealing repair kits for concrete pumps. It has been deeply engaged in the production and processing of rubber products and sealing components for many years.

The company mainly deals in concrete pump accessories for well-known domestic and international brands such as Sany Heavy Industry, Zhenliang Heavy Industry, German Elephant, German Schwieger, Japan Extreme East, Japan Ishikawa Island, Japan Niigata, Korea Daewoo, Korea Daonong, Chu Tian, Shanghai Hongdeli, Changchun Canghai, Sai Ma, Guangdong Junma, Anhui Xingma, Liaoning Hai诺， Foton Heavy Industry， Shandong Fangyuan， etc.： split pistons， integral pistons， S-shaped tube large and small end seals， swing cylinder seals， mixing seals， main oil cylinder seals， discharge port seals， rubber springs， pump rings， swing arm ball heads， etc. The products are popular domestically and exported to many countries around the world.

The company adheres to the principle of "quality first and customer satisfaction foremost", and has established a strict production management and quality inspection system to provide customers with high-quality products and comprehensive services.