HQ China

From sales and service to investment casting production, CNC machining, precision pipe welding and innovative deep-drawing processes. This is how we create solutions from a single source – right where our expertise lies.

GINHO's HQ in figures

GINHO Precision Manufacturing Co., Ltd. was established in 2003 and is located at No. 5999, Yuetan Road, High-tech Industrial Development Zone, Gaomi City, Weifang City, Shandong Province. It is a customs AEO high-level certified enterprise, a national high-tech enterprise, and a recognized green factory. The company operates a provincial enterprise technology center, a provincial one-enterprise one-research and development center, and a municipal engineering technology research center. GINHO is also a member of the China Machinery Manufacturing Industry Federation and the China Foundry Association.

2003

established

1800+

employees

75

domestic patents

82m

yuan registered capital

700+

core production and testing machines

8000

tons annual production capacity

The company has a registered capital of 82 million yuan and currently employs more than 1,800 people, providing a solid foundation for stable and sustainable development.

With strong manufacturing capabilities, GINHO has established multiple modern production lines, including precision casting, CNC precision machining, and stainless-steel precision welded pipe production. The facilities are equipped with world-class advanced production and testing equipment such as British VA shell machine manipulators, five-axis machining centers, and laser welding production lines. Through continuous technological transformation and upgrading, the company has newly purchased more than 700 pieces of core equipment, achieving a designed annual production capacity of up to 8,000 tons and ensuring efficient, high-quality production.

Innovation is the core driver of the company’s competitiveness. GINHO currently holds 75 domestic patents and continues to break through technical bottlenecks via multi-level innovation platforms. In 2025, the company further accelerated its innovation efforts, successfully applying for 2 national invention patents and 3 utility model patents, while 3 provincial technological innovation projects were filed and approved. Innovation achievements continue to emerge.

The company specializes in the manufacturing of high-end precision components. Its leading products include precision components for automotive engine exhaust gas recirculation (EGR) systems, turbocharging systems, and high-pressure common rail systems. GINHO offers one-stop services covering product development, precision component manufacturing, CNC machining, welding, and assembly.

GINHO’s products are exported to Asia, Europe, and America. The company has established long-term strategic partnerships with world-renowned enterprises such as BorgWarner, Bosch, Faurecia, EBH, and Tenneco, supplying components for globally recognized automotive brands including Volkswagen, BMW, Audi, and Porsche.
Over the years, GINHO’s performance has been widely recognized, earning numerous honors such as “National Foundry Industry Top 100,” “Leader Enterprise in the Molding Casting Industry,” “AAA Credit Enterprise,” “Shandong Province Single-Market Champion Enterprise,” “Shandong Province Gazelle Enterprise,” “Shandong Province Labor Relations Harmonious Enterprise,” “Shandong Province Innovative Private Enterprise,” “Gold Award for High-Quality Castings at the China International Foundry Fair,” and “Shandong Province Digital Workshop.”

All employees adhere to the corporate spirit of “Unity, Progress, and Innovation,” guided by the business philosophy of “Reputation, Quality, and Harmony” and the business policy of “Customer First, Always Pursuing Consistency.” Under the leadership of government authorities at all levels and with strong support from society, GINHO is committed to providing high-quality products and services to customers worldwide.

Our manufacturing site is the driving force behind sustainable innovation.

Processing Plant No.1

The Processing Plant No.1 currently has over 400 employees. It consists of multiple production workshops and departments such as processing, quality inspection, repair, cleaning, measurement room, quality department, and production department. It is equipped with over 260 advanced machines including machining centers, CNC lathes, and five-axis machining centers, which can process various types of complex and precision-engineered components for engine exhaust recirculation systems and high-pressure common rail systems, as well as precision parts for new energy vehicles, according to the different requirements of customers for products.

Exhaust Recirculation Product Processing Area:
The products are compatible with engine exhaust treatment systems that meet Euro 6 and China VI standards.

High-Pressure Common Rail Product Processing Area:
The products are compatible with electronically controlled high-pressure common rail fuel injection systems. Compared with traditional injection technologies, they further reduce fuel consumption and emissions, enhance power performance, and achieve another leap in the comprehensive performance of gasoline and diesel engines.

Processing Second Factory

Since 2015, the company has seized the favorable opportunity presented by the establishment of global automotive engine component developers in China, actively negotiated and cooperated with BorgWarner, one of the five giants in the world’s turbocharger industry, and reached a long-term cooperation agreement to produce precision components for turbochargers for them. Thus, it successfully entered the market of turbocharger components.

The Processing II Plant mainly has a production line for precision components for engine turbocharging systems. It possesses:

Welding process:
It has laser welding machines and EB electronic beam welding machines, which can realize automatic feeding, automatic welding, and automatic inspection functions.

NC precision machining production line for VTG type turbocharger precision components:
It has automated production lines with gantry mechanical arms, Italian combination machines, Japanese Makino turning and milling combined processing centers, universal grinders, etc. This production line has achieved breakthroughs in processing high-temperature alloys through improvements and adjustments to tooling and cutting fluid design, and is expected to reduce processing costs by 15%-20% and increase efficiency by 30%-40% compared to the industry. Its cost and quality are far ahead of the industry.
Parallel bypass valve type turbocharger precision components processing production line: It has advanced production equipment such as Swiss multi-position CNC machines and CNC lathes. Swiss multi-position CNC machines can achieve 24-hour uninterrupted automated production from feeding to product delivery.

Processing Third Factory

As one of the core production units of the company, the Processing Third Factory focuses on the research and manufacturing of turbine shell series products. It is an important platform for the company to implement technological innovation and enhance industrial upgrading. Currently, it mainly produces 4 core products and also undertakes the trial production of multiple samples, serving major car manufacturers such as Chery, Geely, BYD, and Huawei Vision.

The factory takes “lightweighting, high precision, and green” as its core orientation. It innovatively uses cast steel material to replace traditional cast iron, creating a new generation of turbine shell products. Compared with traditional iron-cast turbine shells, the cast steel turbine shells achieve a weight reduction of more than 20% while maintaining high strength and high-temperature resistance core performance. This not only significantly improves the energy efficiency and operational stability of the end equipment, but also aligns with the current development trend of energy conservation and environmental protection in the automotive industry.

Advanced CNC processing equipment and a full-process quality control system ensure that the product size accuracy error is strictly controlled within 0.04 millimeters (within 4 threads), and the qualification rate continues to lead the industry. Since its establishment, the factory has always adhered to the concept of “quality as the foundation and innovation as the soul”, through process optimization and capacity enhancement, providing solid support for the expansion of the company’s core business and the enhancement of market competitiveness.

Casting Production Line

This casting production line possesses core intellectual property groups for precision casting, vacuum casting, and centrifugal casting. It can provide customers with innovative design and large-scale manufacturing solutions for metal materials such as high-temperature alloys throughout the entire process. The production line can produce 8,000 tons of high-temperature resistant, corrosion-resistant, lightweight engine turbocharger, EGR exhaust gas recirculation, high-pressure common rail three systems, and precision components for new energy vehicles annually. Each process of the production line is equipped with advanced production and inspection equipment such as intelligent robotic arms, spectrometers, three-coordinate measuring instruments, and electronic universal testing machines, ensuring product quality.

Engine Components Factory

Engine parts factory is equipped with over 70 production facilities, including stainless steel precision welded pipe production lines, automated pipe fittings forming production lines, internal high-pressure forming machines, and brazing furnaces. It can produce various types of engine exhaust system pipe fittings and precision pipe fittings for new energy vehicles according to customers’ requirements, covering different pipe diameters, structures, dimensions, and physical and chemical performance specifications.

Tool Development Center

The company’s tool development center has introduced advanced high-precision equipment such as Mutoh 6-axis tool grinding machines, step difference grinding machines, Zelo tool inspection instruments, and dulling polishing machines. It can provide technical support for different processing requirements of complex products, including tool selection and process optimization. For products with high processing difficulty such as titanium alloys, high-temperature alloys, and nickel-based alloys, which have high tool costs, it collaborates with suppliers to develop high-performance hard alloys, ceramics, CBN (cubic nitrogenized boron), and PCD (polycrystalline diamond) tools. It also adopts PVD/CVD coating processes (such as TiAlN, DLC, etc.) to enhance the wear resistance and heat resistance of the tools, thereby improving the processing efficiency of the products and reducing the tool costs.

Insight into our HQ

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