Ningbo Chengen Machinery Co., Ltd. was established in 2008. It is a professional manufacturing enterprise integrating casting and machining, committed to  providing customers with high-quality one-stop solutions. The company is located in Jiangshan Town, Yinzhou District, Ningbo City. It has a modern production base of 12,000 square meters, equipped with advanced production equipment and a  professional technical team. It has won wide recognition in the market with its  excellent manufacturing capabilities and rigorous quality control.

Against the backdrop of high-quality development in the manufacturing industry, with technological breakthroughs in the field of carbon steel precision casting, a new generation of high-performance carbon steel precision casting series products has been successfully developed, providing more superior and reliable solutions for industries such as equipment manufacturing, the automotive industry, and construction machinery. Technological breakthroughs and outstanding quality By adopting the internationally advanced "V-process precision casting technology" and "digital intelligent shape control system", the dimensional accuracy of carbon steel castings has reached the CT7 standard, and the surface roughness is controlled within Ra12.5μm. Through the innovative "low-carbon microalloying" technology, the tensile strength of the product has been increased to over 600MPa while maintaining good casting performance, and the elongation exceeds 15%. The product performance has reached the international advanced level. The chief engineer of the company stated: "We have broken through the technical bottleneck of traditional carbon steel casting. By optimizing the smelting process and heat treatment parameters, we have successfully solved the industry problem that carbon steel castings are prone to defects such as porosity and slag inclusion. The product qualification rate has increased to 98.5%." Its wide application and prominent value are evident The series of carbon steel precision castings released this time have been successfully applied in multiple fields: In the field of construction machinery: Successfully matched high-precision components such as hydraulic valve bodies and pump casings In the field of automotive manufacturing: It is applied to key components such as transmission cases and suspension systems In the field of rail transit: Provide high-performance castings for braking systems In the field of general machinery: It is used in conjunction with various transmission devices and connecting components Our products not only achieve one-time molding of complex structural components, but also reduce production costs by 18% through process optimization, creating significant economic benefits for customers. The company's marketing director introduced.

View More

Against the backdrop of the continuous growth in global high-end manufacturing demand for precision components, Company has successfully developed a new generation of high-precision stainless steel investment casting series products through technological innovation in the field of stainless steel investment casting, providing better solutions for industries such as medical devices, food machinery, and chemical equipment. Outstanding quality in technological innovation By adopting the internationally leading "silica sol precision casting process" and "digital intelligent forming system", the dimensional accuracy of stainless steel castings has reached the CT6 standard, and the surface roughness is controlled within Ra3.2μm. Through the innovative "vacuum melting + argon protection" process, the corrosion resistance of stainless steel castings such as 316L has been enhanced by more than 30%, and the product performance has reached the world-class level. "We have broken through the technical bottleneck of traditional investment casting," said the company's technical director. "By optimizing the mold shell material and the gating system, we have successfully solved the industry problem of defects such as shrinkage porosity and hot cracking in stainless steel castings, and the product qualification rate has been increased to 99%." The wide application value is highlighted The stainless steel investment castings released this time have been successfully applied in multiple high-end fields: Medical devices: surgical instruments, implants and other high-precision components Food machinery: Sanitary components such as pumps, valves and pipes Chemical equipment: Corrosion-resistant valves, reactor accessories Aerospace: Small structural components for engines.

View More

With the continuous improvement of the precision and performance requirements for components in high-end manufacturing, alloy steel precision casting technology has become the core track of industry competition. Recently, a new generation of high-precision and high-performance alloy steel castings has been launched, providing more reliable solutions for fields such as aerospace, energy equipment, and automotive manufacturing. This marks that China has entered the international advanced ranks in the field of precision casting. Innovative technology creates outstanding performance The "ultra-pure smelting process" and the "intelligent shape control casting system" keep the dimensional accuracy of alloy steel castings within ±0.05mm, and reduce the defect rate of internal pores and inclusions to one-third of the industry average. By optimizing the material ratio and heat treatment process, the product performs exceptionally well in key indicators such as tensile strength (≥1200MPa), corrosion resistance and high-temperature stability, and can meet the usage requirements under extreme working conditions. Empower high-end manufacturing and have a wide range of application scenarios The alloy steel precision castings released this time have been verified by many leading enterprises in the industry and have been successfully applied to: Aerospace: Engine turbine blades, high-load structural components; Energy equipment: Nuclear power valves, heat-resistant components for gas turbines; Automotive industry: Lightweight suspension systems, high-strength transmission components. Not only have we achieved the one-time molding of complex geometric shapes, but we have also shortened the production cycle by 20% through digital simulation. In the future, the focus will be on laying out the casting technology of recycled materials and promoting green manufacturing.

View More