Hehua Machinery Technology (Kunshan) Co., Ltd. recently completed the manufacturing of air filtration equipment for DÜRR China, supporting the company's environmental protection solutions for industrial coating applications. The project demonstrates Hehua's expertise in precision machining, sheet metal fabrication, welding, structural assembly, and quality-controlled manufacturing for large industrial equipment.
As a wholly owned subsidiary of Germany's DÜRR Group in China, DÜRR China specializes in the design and construction of paint shops, final assembly systems, and exhaust air purification systems. Its solutions are widely used across automotive manufacturing, mechanical engineering, pharmaceuticals, and other industrial sectors. Working with customers in these industries requires manufacturing partners that can consistently deliver high-quality components while meeting demanding engineering specifications.
The successful completion of this air filtration equipment project further reflects Hehua's capability to provide reliable manufacturing support for advanced industrial equipment manufacturers.
Air filtration equipment plays an essential role in modern industrial production. In coating workshops and manufacturing facilities, these systems help remove airborne particles and contaminants, creating cleaner production environments while supporting environmental compliance and product quality.
Compared with conventional fabricated structures, air filtration equipment requires strict control over dimensional accuracy, structural rigidity, sealing performance, and welding quality. Every component must fit precisely within the overall system to ensure stable operation after installation.
For this project, Hehua was responsible for manufacturing large structural assemblies and precision-fabricated components according to customer specifications. From raw material preparation to final inspection, every production stage was carried out under standardized manufacturing procedures to ensure the finished products met technical requirements.
One of Hehua's core strengths is its ability to complete multiple manufacturing processes within a single production facility.
For the DÜRR China project, the manufacturing workflow included:
Material preparation
CNC machining
Sheet metal fabrication
Precision welding
Structural assembly
Dimensional inspection
Surface preparation
Final quality verification
Managing these processes internally enables better coordination between departments, improves production efficiency, and reduces lead times while maintaining consistent quality throughout the project.
This integrated manufacturing capability is especially valuable for customers producing customized industrial equipment, where individual components must work together as a complete system rather than as standalone parts.
The air filtration equipment manufactured for this project features large welded steel structures that require both mechanical strength and dimensional stability.
Unlike standard fabricated parts, large assemblies must maintain precise tolerances throughout the manufacturing process. Welding distortion, assembly alignment, and machining accuracy all influence the final performance of the equipment.
To achieve these requirements, Hehua's engineering and production teams closely coordinated each manufacturing stage. Welding sequences were carefully planned to minimize deformation, while dimensional inspections were performed throughout production rather than only after completion.
By combining practical manufacturing experience with standardized quality control procedures, the team ensured that every assembly met customer specifications before shipment.
Consistent quality is a key requirement for industrial equipment manufacturing.
Hehua operates under internationally recognized management systems, including:
ISO 9001 Quality Management System
IATF 16949 Automotive Quality Management System
EN 15085 Railway Welding Certification
EN ISO 9606-1 Welder Qualification Certification
These certifications reflect the company's commitment to standardized manufacturing processes and continuous quality improvement.
During production, inspections were conducted at multiple stages, including incoming material verification, in-process dimensional measurement, welding inspection, assembly verification, and final product checks. This systematic approach helps identify potential issues early and ensures stable product quality before delivery.
Since its establishment in 2005, Shanghai Hehua Machinery Technology Co., Ltd., together with its subsidiary Hehua Machinery Technology (Kunshan) Co., Ltd., has accumulated extensive manufacturing experience across a wide range of industries.
The company provides precision metal parts and fabricated assemblies for:
l Automotive manufacturing
Rail transit
Aerospace
Wind power
Nuclear power
Semiconductor equipment
New energy equipment
Industrial machinery
Serving these industries has enabled Hehua to build comprehensive expertise in precision machining, heavy-duty welding, sheet metal fabrication, and customized manufacturing for complex engineering projects.
This cross-industry experience also allows the company to respond efficiently to customers with specialized manufacturing requirements.
Hehua operates a manufacturing facility covering more than 13,300 square meters in Kunshan, Jiangsu Province, with more than 140 employees dedicated to engineering, manufacturing, quality control, and project management.
To improve production efficiency and project coordination, the company utilizes the Zhibang International ERP intelligent management system, integrating sales, engineering, purchasing, inventory, production, quality management, finance, and logistics into one digital platform.
This digital workflow provides customers with better project visibility while supporting efficient production scheduling and reliable delivery.
In addition, both Shanghai Hehua Machinery Technology Co., Ltd. and Hehua Machinery Technology (Kunshan) Co., Ltd. possess independent import and export rights, allowing the company to provide complete manufacturing and export services for customers worldwide.
Industrial equipment manufacturers increasingly seek suppliers capable of delivering more than individual components. They require manufacturing partners who understand engineering requirements, quality expectations, and international project management.
Hehua works closely with customers throughout the manufacturing process, from technical communication and process planning to production, inspection, packaging, and export support. This collaborative approach helps reduce project risks and improve overall manufacturing efficiency.
For equipment manufacturers serving industries such as automotive production, industrial coating, environmental protection, and mechanical engineering, reliable manufacturing partners contribute directly to project success.
The completion of the air filtration equipment project for DÜRR China represents another example of Hehua's commitment to precision manufacturing and dependable customer support.
As industrial equipment continues to evolve toward higher efficiency, smarter manufacturing, and stricter environmental standards, Hehua will continue investing in advanced manufacturing technologies, skilled engineering talent, and quality management systems.
With over two decades of manufacturing experience, comprehensive production capabilities, and international certifications, Hehua remains committed to delivering precision-engineered metal components and fabricated assemblies that help customers achieve reliable, long-term performance.
The company looks forward to supporting more customers in the fields of industrial equipment, environmental protection systems, automotive manufacturing, and other high-end industries through professional manufacturing solutions and long-term cooperation.
AddressNo. 66 Xingpu Road, Lujia Town,Kunshan City, Factory Buildings 3 and 4 
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