Shandong Defa Company is a Chinese partner of leading foreign industrial equipment, technology, materials and product processing, specializing in providing domestic advanced processing and manufacturing solutions for foreign related industries. We are the business bridge between global enterprises and China for the trade of advanced equipment and parts processing and manufacturing. Our company has long-term cooperation with Chinese state-owned enterprises to provide high-quality services and quality assurance to global customers.
Our long-term partners have complete production workshops equipped with modeling, casting, riveting and welding, machining, heat treatment, etc., as well as a sound production and operation management system including R&D design, production management, quality control, marketing, and after-sales service.In October 1998, we had the ISO9001 quality system certification and established a nationally certified physical and chemical, metrological inspection laboratory with complete inspection equipment and advanced testing methods. Successful Cases: Workshop and Equipment display: Hot Processing Division: owns 1 set of 15t electric arc furnace, 2 sets of 5t electric arc furnaces, and 1 set of 30t LF refining furnace. It can provide 130t ordinary molten steel and 60t refined molten steel at one time. The net weight of a single casting can reach 75t. 1 set of VD/VOD VC vacuum refining furnace, can be vacuum blowing oxygen decarburization chromium preservation, heating, argon stirring, vacuum degassing, slagging, alloying and other operations, provide 30t vacuum degassing molten steel and 30t stainless molten steel, suitable for stainless steel, industrial pure iron, precision alloy, superalloy and alloy structural steel smelting. Especially the smelting of ultra-low carbon stainless steel and alloy steel. With the maximum loading capacity of 200t automatic temperature control annealing kiln, ceramic electric heating annealing device and other heat treatment equipment, suitable for large kiln grinding castings and cylinder heat treatment process. It has the largest Φ1.6m medium frequency quenching machine in China, which can quench the surface of large shaft parts. In addition, the special heat treatment means of important parts are relatively complete. Machining Division: Has 4×12m CNC gantry milling machine, Φ200 CNC boring and milling machine, Φ5000 CNC vertical lathe, Φ1~Φ8m vertical lathe, Φ5×16m floor lathe, Φ2 ~ 8m gear hobbing machine and other complete kinds of processing equipment, and has full automatic submerged arc welding, CO2 gas shielded welding, argon arc welding and other welding equipment, weld quality reaches level II or above, meet the production requirements of all types of kiln grinding cylinder with Φ7m or less.
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