As a professional manufacturer of valve test benches and planetary grinding machines, we believe that stable equipment performance originates from complete in-house manufacturing control. Instead of relying heavily on outsourced processing, we have built a closed-loop production system covering every core procedure from raw material incoming inspection to finished product off-line testing.
The whole production chain starts with raw material acceptance. All incoming metal materials are subject to material verification, dimensional inspection and hardness sampling test before entering the production workshop. We screen raw materials strictly according to the load requirement, pressure bearing standard and service environment of the equipment. Unqualified materials will be rejected directly, to avoid hidden risks of deformation, pressure leakage or insufficient structural strength in the later stage.
After raw material confirmation, we carry out precision forming processing. The raw metal blanks are processed according to custom engineering drawings, to achieve accurate outline and reserved assembly tolerance. This procedure lays the foundation for the matching accuracy of structural components, which directly affects the stability of clamping structure, pressure transmission system and moving parts of the final equipment.
Precision welding is one of the critical links for load-bearing frames and pressure-related components. Our welders follow standardized welding procedures for different material grades and structural stress requirements. We control welding temperature, weld penetration and deformation during operation. After welding, all welding seams go through visual inspection and flaw check. Any welding defect will be repaired and rechecked, to ensure the structural frame can bear long-term cyclic load and maintain stable shape under continuous working conditions.
After welding and stress relief treatment, components enter the finishing stage. The machining process removes welding scars and uneven surfaces, and precisely processes assembly positioning surfaces, mounting holes and fitting surfaces. The tolerance of key mating surfaces is controlled within a reasonable range, which reduces assembly clearance, avoids abnormal vibration and jamming during equipment operation, and extends the service life of moving assemblies.
Subsequently, we carry out surface treatment and anti-corrosion coating. Before spraying, all parts go through surface cleaning and pretreatment to remove oil stain, rust and oxide layer. The coating is constructed in multiple layers, with strict control over coating thickness and adhesion. The finished protective layer can resist moisture, oil mist and atmospheric corrosion in the workshop environment, keeping the equipment in good appearance and stable performance for long-term on-site use.
When all individual components are finished and inspected, we proceed to systematic assembly. Technicians assemble hydraulic units, control systems, clamping mechanisms, transmission parts and sealing components step by step according to assembly process documents. Every fastener, sealing element and sensor is installed and calibrated in sequence. After assembly, the whole set of equipment will undergo a strict factory test. The test includes pressure holding test, action cycle test, sealing inspection and control system verification, complying with relevant industrial standards. Only equipment that passes all test items can be packaged and delivered to customers.
Full-process self-production brings obvious advantages for our partners. We can flexibly respond to customized requirements on structure, pressure grade and size. Meanwhile, we can track and adjust every production link quickly, shorten the delivery cycle and realize traceable quality control. For valve repair workshops and valve manufacturing enterprises around the world, a complete internal manufacturing system means lower failure rate, more stable test performance and convenient after-sales support for valve test benches and planetary grinding machines.
Yufeng Machinery keeps optimizing our production management and process standards. We keep focusing on the consistency of every manufacturing link to provide durable, high-performance valve testing and grinding solutions for global clients. If you have customized demands for valve test equipment, welcome to send us your technical requirements for quotation.
