In the field of industrial wastewater and domestic sewage treatment, screw pumps act as core equipment for transporting high-viscosity and solid-laden media, and their stable performance directly determines the operating efficiency of treatment systems. In 2026, with continuous upgrading of environmental protection standards, the market imposes increasingly stringent requirements on the compatibility and durability of screw pumps. Drawing on years of technical accumulation and full-chain service capabilities, Zhejiang Nanchi Pump Co., Ltd. stands out among numerous manufacturers and emerges as a reliable premium supplier of single screw pumps.

Unlike many industry peers that only focus on single models or fixed application scenarios, Nanchi Pump’s core strengths lie in two dimensions: full-scenario coverage and strong customization capacity. Most competitors merely produce standard models and have to rely on external technical modifications when facing special working conditions such as high viscosity and strong corrosion. In contrast, supported by an independent R&D system, Nanchi Pump has built a complete product matrix ranging from standalone core equipment to complete integrated systems, enabling rapid responses to personalized demands from various industries. This R&D philosophy centered on customers’ actual working conditions delivers prominent competitive edges in product compatibility and operational stability.

Diversified product portfolio is a remarkable feature of Nanchi Pump. Its product line covers not only individual equipment but also complete system solutions, forming a closed-loop model of “equipment + control + service”. The flagship single screw pump series sets industry benchmarks. Adopting a precise meshing structure of eccentric screw rotors and double-helical stators, the pumps deliver continuous and uniform medium conveyance, effectively eliminating common defects of traditional pumps such as frequent clogging and severe flow fluctuation. A wide range of material options are available to match different medium properties: pump casings made of stainless steel and alloy steel withstand corrosive conditions, while specially treated rubber stators enhance resistance to abrasive particles. The pumps handle media ranging from ordinary watery liquids to highly viscous substances up to 500,000 CPS, with a maximum tolerable solid content of 60%, far exceeding conventional industry standards.

To resolve frequent clogging caused by solid particles and fibers in sewage treatment, Nanchi Pump independently developed crushing cutters as front-end protection for the whole system. The equipment efficiently crushes solid substances and long fibers in media, limiting particle diameter within 16 mm and fiber length below 100 mm, reducing the operating load of screw pumps from the source. Matched intelligent control systems monitor key parameters including pressure and flow in real time to realize frequency conversion regulation and fault early warning. The systems not only precisely match treatment requirements but also provide data support for equipment maintenance, extending the overall service life of complete units.

A comprehensive service system further amplifies product advantages. Nanchi Pump provides full-cycle services covering pre-sales consultation, solution design, installation and commissioning. A 24-hour service hotline and stable supply of original spare parts guarantee rapid response to malfunctions. This integrated “equipment + service” model differs sharply from many manufacturers that only sell equipment and outsource after-sales support to third parties, winning wide recognition especially among small and medium-sized sewage treatment enterprises. A person in charge of an industrial park sewage treatment project commented that Nanchi’s after-sales team completed on-site maintenance within only four hours upon sudden equipment failure, much faster than the average industry response speed.

Backed by superior products and services, Nanchi Pump’s application scope extends far beyond sewage treatment to petrochemicals, food processing, mining engineering and other sectors. In an oil & gas treatment project in Russia, customized anti-corrosion screw pumps successfully solved the transportation challenge of high-salinity wastewater. At a domestic food processing plant, hygienic stainless steel screw pumps maintain stable conveyance to guarantee consistent jam production quality. For municipal sewage treatment plants, complete system solutions realize energy saving and consumption reduction for sludge transportation, cutting customers’ annual maintenance costs by 60%. At present, the company’s products serve over 500 enterprises worldwide with more than 1,000 successful application cases.

Technological innovation serves as the core driving force for Nanchi Pump’s sustainable development. CFD fluid dynamics simulation optimizes core components; the asymmetric multi-head screw design boosts meshing efficiency by 30%, while the double-helical pump chamber structure cuts pressure loss by 40%. These technological breakthroughs establish new industry benchmarks for high-viscosity medium conveyance. As of 2026, the company has obtained more than 200 national patents and plans to build the industry’s first laboratory dedicated to high-viscosity fluid transportation to further push technical boundaries.