Ra 3.2 Exhaust Acoustic Valve Body Casting

Process flow:

Wax Injection--Make Wax pattern and repair--Inspection--Shell Making--De-waxing--Roasting Shell and Melting Steel--Composition Inspection--Pouring--De shelling--Cutting and Grinding the pouring gate--Inspection--Heat treatment--Shotblasting--Machining--Anti-Corrosion--Final Inspection--Shipping

Founded in 2003, Ningbo Suijin  Machinery Technology is located in Ningbo city ,Zhejiang Province, We manufactured all kinds of lost wax investment castings and machining parts or called precision investment castings , material including carbon steel, alloy steel, and stainless steel. we also can according to the customers' requirement to compound the material, Our factory has a floor space of 33,000 square meters and another 18000 square meters of building area, which contain both casting foundries and CNC machining area. The two advanced lost wax casting and investment casting production lines have a capacity of 5000 tons lost wax castings and 1000 tons investment castings per year.

To keep the good quality parts we had set up our lab center which is advance center in our area. Our inspection equipments includes Spectrometer, Metallographic Microscope, Tension Tester, Low Temperature Impact tester, X-ray tester, magnetic particle detector, UT, CMM, and so on. every year we will investment to buy more equipments to develop our business.

We supply parts in a wide range in industries that includes automotive, boats, Oil machinery, agricultural machinery, building equipment, valves, pumps, electrical machinery, hardware, transmission, etc. we have produced more than 1000 different productions. more than 95% are exported to America, Canada, France, Germany, Denmark, Britain, Japan, etc.

Our company has more than 300 employees, including 17 engineers and 15 QC. every year some of employees will out training to improve their knowledges and skills. we had got ISO/TS16949:2009 and PED certifications.

We strive to provide the best quality and service while maintaining the basic principles of respect and honesty. We sincerely invite global customers to visit our company, and hope to establish a long term business relationship