Stainless steel stamping centrifugal pumps are widely used in systems requiring small flow and high lift, such as drinking water supply systems, pressure boiler water supply systems, high-purity water purification systems, and various industrial applications like washing, spraying, and processing in pharmaceuticals, food, fine chemicals, and papermaking. Recently, the State Economic and Trade Commission Energy-Saving Information Dissemination Center included this type of pump in its "Best Case Study of Energy-Saving Practices," analyzing its application and benefits.
Traditional casting pumps involve complex manufacturing processes such as mold making, filling, and machining, which lead to high energy consumption, material waste, labor intensity, and environmental pollution. They also struggle to produce small-flow impellers efficiently. In contrast, stainless steel stamping centrifugal pumps use a stamping and welding process, replacing the traditional casting method. This results in over 70% material savings, a 3-5% increase in efficiency, easier mechanization and automation, reduced environmental impact, and lower labor demands.
The case study was conducted by Guangdong Jiangmen Angel Hardware Appliance Co., Ltd., a major production base for the "Angel" brand washing machines. After implementing stamping centrifugal pumps, the company installed 347 automatic bottle washing and filling machines, using a total of 2,082 stainless steel stamping centrifugal pumps. This led to more than 40,000 yuan in cost savings on pump purchases.
For manufacturers, producing 2,082 units of these pumps saved 3.47 tons of stainless steel and reduced casting power consumption by 7,634 kWh. For users, the actual operating power of the pumps dropped from 2.18 kW to 2.11 kW, saving 3.2% in energy use. Additionally, the lightweight and compact design of the pump makes it easier to maintain, further reducing maintenance costs.
According to statistics from the National Bureau of Statistics and the China Machinery Industry Federation, the annual demand for foundry pumps in China is 4.57 million units, with over 380,000 units required for small-flow alloy cast pumps. Stainless steel stamping centrifugal pumps offer an attractive alternative due to their lightweight, aesthetically pleasing design, higher efficiency, and lower cost—half the price of imported pumps. With significant economic benefits and broad application potential, they hold promising market prospects.
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