Rainbow Technocast

Rainbow Technocast manufactures ferrous and non-ferrous investment castings, producing precision components using the lost wax process technology. It supports casting weight ranges from a few grams up to 140 kilograms per piece and supplies unmachined (raw castings) as well as machined alloy steel and stainless steel castings according to customer drawings and specifications. The manufacturing process includes die design with simulation software, semi-automatic pattern making, coating, de-waxing, melting with specialized induction furnaces, heat treatment, fettling, NDT testing (dye penetration, magnetic particle inspection, radiography, and ultrasonic testing), and in-house CNC machining (turning, milling, and drilling). Quality control and testing are performed at multiple stages using chemical and physical testing facilities (including spectrometer, hardness tester, universal testing machine, hydro testing, and impact testing) along with dimensional inspections and CMM inspection. The company is certified with ISO 9001:2015 and also holds PED/AD related certifications for manufacture and supply of ferrous/non-ferrous investment castings and valve and pump castings. It serves industries including valves manufacturing (gate, globe, knife edge gate, and butterfly valves), pumps, engineering, and food processing.

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