Backward Curved Centrifugal Fan

As an original manufacturer with over 30 years of deep expertise in the fan industry, the Backward Curved Centrifugal Fan we developed is a high-efficiency and stable core equipment widely recognized in the industrial ventilation sector. It is also our flagship model with sales covering 26 provinces and municipalities nationwide, having been selected for numerous key domestic engineering projects.

The core design logic of the Backward Curved Centrifugal Fan lies in aerodynamically optimized backward curved impellers and streamlined volute structures, achieving an optimal balance between air pressure and air volume under high system resistance working conditions. Building on this foundation, our R&D team has conducted 17 rounds of iterative optimization on blade curvature and volute flow channels based on 30 years of on-site working condition service experience. This boosts the operating efficiency of our Backward Curved Centrifugal Fan by over 8% compared to the general industry standard, while cutting vibration and noise by 15%, perfectly meeting the demands of long-term continuous operation in complex industrial scenarios.

We fully recognize that uninterrupted industrial production is the core of enterprise profitability. Therefore, the design and production of this backward curved centrifugal fan always center on three core requirements: reliability, high efficiency and low operation & maintenance costs. The impeller is precision stamped from high-quality steel plates and processed via CNC bending machines and laser cutters, ensuring the angle error of each blade is controlled within ±0.5°. The rotor assembly undergoes high-precision dynamic balancing calibration to ISO 1940 G6.3 standards, maintaining extremely low vibration amplitude even under harsh 24-hour non-stop operation, preventing equipment wear and pipeline resonance.

Meanwhile, we offer flexible transmission modes and outlet angle configurations for this fan, which can be customized according to your on-site pipeline layout and space constraints without additional infrastructure modification, greatly lowering your installation costs and construction cycles.

• General ventilation for industrial workshops: Deliver continuous and stable ventilation for factory workshops and commercial buildings, improving working environments and safeguarding personnel health and production safety.
• Process air supply systems: Provide forced air supply for melting furnaces and cupolas in casting and metallurgy industries to guarantee combustion efficiency and process stability.
• Pneumatic material conveying: Supply powerful airflow power for fiber and particulate conveying systems in textile, food and other industries to realize long-distance and high-efficiency material transportation.
• Dust removal environmental protection systems: Cooperate with dust removal equipment to provide stable air pressure for the transportation and treatment of dust-laden gas, ensuring the operating efficiency of dust removal systems.

We are an early-established professional manufacturer in the national fan industry with more than 30 years of fan R&D and production history, a registered capital of 5.8 million RMB, and stable annual sales exceeding 20 million RMB. Our factory is located in Nantong, Jiangsu, the core area of the Yangtze River Delta, enjoying a convenient three-dimensional land, water and air transportation network, which delivers far higher efficiency in raw material procurement and product delivery than the industry average.

We are equipped with a full set of advanced production equipment including balancing machines, laser cutters, laser welding machines and CNC bending machines, and have built a complete whole-process system covering fan R&D, production and testing. A dedicated production line for high-efficiency centrifugal fans enables flexible coordination between standardized mass production and customized modification. We maintain long-term technical cooperation with multiple domestic universities and scientific research institutions, holding 3 fan-related patented technologies, and can provide non-standard customized solutions for customers with special working conditions. At present, our products cover 26 provinces and municipalities nationwide, with partial models exported to overseas markets.

We always regard product quality as the foundation of enterprise survival and have established a sound comprehensive quality assurance system, with all products inspected in accordance with international standards. For this backward curved centrifugal fan, we have built a full-chain control mechanism covering raw material incoming inspection, component processing, complete machine assembly and finished product delivery: Raw materials must pass spectral material testing and thickness verification before warehousing to guarantee substrate strength and corrosion resistance meet standards; key components undergo triple dimensional verification after processing to strictly control impeller profile errors within design limits; after complete machine assembly, each unit must pass multiple procedures including full-load trial operation, performance curve testing, noise and vibration inspection. Every fan delivered from our factory comes with an exclusive inspection report.

Our quality control system has passed multiple authoritative industry audits, and our products have received numerous industry honors. We fundamentally eliminate defective products entering the market to provide solid support for the stable operation of your equipment.

We have developed a standardized packaging and logistics system tailored to the transportation characteristics of industrial fans to ensure every unit arrives at the customer site intact. Before delivery, core components such as impellers and casings of this fan are wrapped for dust and moisture resistance, followed by overall reinforcement with thickened wooden frames and anti-collision corner guards to prevent collision and deformation during transit. For export orders, fumigated wooden cases complying with marine transportation standards can be provided, with rainproof films and shock-absorbing cushions installed per customer requirements.

Leveraging Nantong's convenient ports and logistics network, we flexibly select sea, land and air transportation modes, partnering with professional logistics providers to ensure on-time and intact delivery to designated locations with full traceable logistics progress.

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