About Us

We are a company driven by customer needs and are committed to providing customized products and services for every customer. Today, as a supplier of engines and related parts, we take "engine cylinder blocks" as our main products, and we are focusing on "cylinder heads, bearing caps, oil pump bodies, gearbox housings, chassis parts, cast aluminum parts, etc." Providing stable mechanical power support and systematic solutions for global customers in many fields.
Zhengheng has four manufacturing plants in China, a material testing and design center, China's first cylinder bore plasma spraying technology center, and a 3D printing center. At present, it has cumulatively designed and produced more than 150 types of cast iron engine blocks and 30 types of cast aluminum engine blocks . The total number of cylinder blocks sold has exceeded 20,000,000 in 2018. Its sales network has covered 34 provinces and regions in China, as well as overseas countries such as the United States, Germany, Japan, Switzerland, and Australia.

Zhengheng has more than 44 years of rich manufacturing experience and operation history. Each product strictly adopts the international standard IATF 16949 quality system certification, ISO14001 environmental management system certification, OHSAS18001 safety management system certification and TPS lean production management system. The fastest delivery time of its prototype can be shortened to 25 days.

Management System


In 2004,

 Implement Toyota TPS management system


 In 2006, passed the GM-QSB audit 


In 2015passed the EHS audit of GE


In 2016, implementation of Changan QCA management system


In 2017, establish and implement ZHQMS management system

Excellent R&D Team

Zhengheng specializes in customizing engine blocks and various small castings.
From drawings to finished samples, the first batch of samples can be delivered within 55 days.

Zhengheng has advanced product and technology integration capabilities, injects all employees’ intellectual property into product development and upgrades, and cooperates with well-known domestic universities such as Sichuan University and Kunming University of Science and Technology to establish Foundry Research Institute, Thermal Spray Research Institute, and Intelligent Manufacturing research institutes, etc., which help Zhengheng continue to develop.

We have 1,500 employees, including engineering and technical personnel, senior engineers and instructors from Japan, Germany, and Austria. This not only guarantees the first-class quality of Zhengheng products, but also allows Zhengheng products to break through the tradition and subvert Innovation.

As a supplier of supporting products in the industry, Zhengheng has a long-term and stable competitive advantage. It provides guarantees from knowledge and experience, safety and stability, high-quality products, and multi-platform applications. Our products have become Toyota, GM, Hyundai, SAIC, Qualified suppliers of major automobile manufacturing companies such as Great Wall, Changan, Geely, etc.


Production Capacity


Die casting production workshop

• 26 sets die casting equipment range from 200 to 6000 tons;
• Annual output of over 10,000 tons
• Self-owned raw material supply to guarantee products quality from the source


Foundry workshop

• 100,000 tons/year, including cylinder blocks and small castings
• 7 casting production lines
 Gray iron castings, ductile iron castings and vermicular cast iron castings
 Thermally reclaimed sand treating system realize the sand recycling


Machining workshop

• 16 mass production lines, 2 development center
• Annual production capacity of 1000,000 cylinder blocks and 2 million other products processing capacity