The company’s machining business pursues “micrometer level precision” as its core, equipped with internationally advanced CNC lathes, machining centers, grinders, milling machines and other professional equipment, combined with digital programming and automation production technology, to achieve integrated machining from complex structural components to high-precision parts. In response to the core performance requirements of compressor components, the machining process strictly controls key dimensional tolerances, surface roughness, and positional accuracy: for example, the cutting gap of the cylinder ring is controlled within the micrometer range to ensure sealing effectiveness; The inner diameter tolerance of the filling box cup groove is accurate to ± 0.01mm, ensuring the fit with the filling ring; The concentric port processing of the valve seat adopts high-precision positioning technology to ensure smooth gas flow.
The process coverage is comprehensive and highly targeted, and can achieve integrated processing of multiple processes such as turning, milling, grinding, drilling, boring, and tapping. It is particularly skilled in the integrated molding of complex structural components. Optimize processing technology for different product characteristics.
The company's machining business pursues "micrometer level precision" as its core, equipped with internationally advanced CNC lathes, machining centers, grinders, milling machines and other professional equipment, combined with digital programming and automation production technology, to achieve integrated machining from complex structural components to high-precision parts. In response to the core performance requirements of compressor components, the machining process strictly controls key dimensional tolerances, surface roughness, and positional accuracy: for example, the cutting gap of the cylinder ring is controlled within the micrometer range to ensure sealing effectiveness; The inner diameter tolerance of the filling box cup groove is accurate to ± 0.01mm, ensuring the fit with the filling ring; The concentric port processing of the valve seat adopts high-precision positioning technology to ensure smooth gas flow.
The process coverage is comprehensive and highly targeted, and can achieve integrated processing of multiple processes such as turning, milling, grinding, drilling, boring, and tapping. It is particularly skilled in the integrated molding of complex structural components. Optimize processing technology for different product characteristics
Relying on the global high-quality raw material supply chain, the company's machining business has the ability to adapt to multi material processing, and can accurately process various substrates such as metals, high-performance polymers, composite materials, etc., perfectly matching the usage requirements of compressors under different working conditions. In terms of metal material processing, proficient in the processing characteristics of 42CrMo, 20Cr13, 17-4PH stainless steel, cast iron, copper and other metal materials. Through pre-treatment and post-processing processes such as quenching, tempering, and surface hardening, the mechanical strength and corrosion resistance of the parts are improved. It is suitable for core components such as packing boxes, valve seats, and center bolts; Polymer material processing is aimed at high-performance materials such as PTFE, PEEK, and carbon fiber reinforced materials, optimizing cutting parameters and tool selection to avoid deformation, cracking, and other problems during the processing, ensuring the self-lubricating and wear-resistant properties of seals such as cylinder rings and packing rings.
For special working conditions such as H2S containing media, high temperature and high pressure, and oil-free lubrication, the machining process is synchronously optimized for process details: for example, parts under corrosive working conditions are processed without burrs to avoid seal failure caused by impurity accumulation; The mating surfaces of high-temperature working conditions parts are ground with high precision to ensure compatibility under thermal expansion conditions, fully meeting the stringent usage requirements of different industries.
The company's machining business adheres to a dual track model of "standardized mass production+customized research and development", which not only meets the large-scale processing needs of general compressor parts, but also quickly responds to customers' personalized customization demands. In terms of series processing, a standardized processing flow and process parameter library have been established for core products such as cylinder rings, packing materials, and air valves to improve efficiency and ensure stable quality in mass production. The supply cycle has been shortened by more than 30% compared to the industry average; Customized processing relies on a professional engineering and technical team to design processing schemes, process simulations, and sample trials based on customer provided operating parameters (such as piston rod diameter, exhaust temperature and pressure, gas medium), equipment models, and special requirements. From structural optimization, size adjustment to material adaptation, it fully meets the processing needs of non-standard parts.
For example, for customized ultra-high pressure packing assemblies for customers, the machining process precisely controls the depth of the cup groove, the flatness of the sealing surface, and the positioning accuracy of the bolt holes to ensure the assembly compatibility of each module; For the valve components of special medium compressors, customized cutting technology is used to process the valve seat flow channel, optimize the flow area, improve gas circulation efficiency, and fully reflect the machining concept of "customer demand as the core".
Quality control runs through the entire machining process, and the company has established a three-level quality control system from raw material inspection, process inspection to finished product testing. Verify material compliance through spectral analysis, hardness testing, and other methods before raw materials are stored; During the processing, online measuring equipment is used to monitor key dimensions in real time, and quality control points are set up for each process to prevent non-conforming products from flowing into the next process; Finished product inspection uses precision testing equipment such as coordinate measuring instruments, roughness meters, roundness meters, etc., to comprehensively verify dimensional accuracy, surface quality, and assembly compatibility, ensuring that the product meets 100% of design requirements and industry standards.
Develop specialized testing standards for the core performance indicators of compressor components, such as achieving a detection accuracy of 0.001mm for lateral and radial clearances of cylinder rings, and controlling the parallelism error of the sealing surface of the packing box within 0.005mm; The flatness detection of the air valve plate adopts optical measurement technology to ensure the accuracy of the opening and closing action, and avoid product operation risks from the processing source.
The company's machining business is not an isolated manufacturing process, but a deep integration with product design, research and development, sales, and service, providing customers with an integrated solution of "processing+adaptation+after-sales". Before processing, the engineering team communicates deeply with the customer to optimize the processing plan based on the compressor operating conditions and equipment characteristics; Timely feedback on progress during the processing, and adjust process parameters according to customer needs; After the delivery of the finished product, we provide installation guidance, dimensional verification, and other supporting services. At the same time, we establish a rapid response mechanism to provide technical support and solutions for customers' processing related issues during use.
Relying on the core strength of machining business, Nirvana Machinery has upgraded from a "parts supplier" to a "precision manufacturing solution provider". It not only provides solid manufacturing support for its own brand parts, but also can undertake compressor related precision machining orders from external customers. In the future, the company will continue to invest in technological upgrades and equipment updates, deepen digital and intelligent processing transformation, and inject precision manufacturing power into the global compressor industry with more accurate processes, wider adaptability, and more efficient services.
