LKW/LKWB Series Stainless Steel High-Efficiency Scroll-Free Plenum Centrifugal Fan with Compact Footprint for Industrial Ventilation

The LKW/LKWB series is a professional industrial-grade scroll-free plenum centrifugal fan, engineered for reliable, energy-efficient air movement in demanding commercial and industrial environments. Its innovative volute-less design delivers powerful airflow performance while maintaining an ultra-compact footprint, making it the ideal solution for seamless integration into air handling units (AHUs), ducted ventilation systems and space-constrained installations.

Constructed with premium stainless steel for exceptional corrosion resistance, this fan series is suitable for conveying clean air, non-corrosive gases and slightly humid air. All units are certified to international standards including CE, ISO, CCC, RoHS and UR for global compatibility. With full customization capabilities and a proven track record of reliability, it is trusted by over 50% repeat buyers worldwide.

• Space-Saving Scroll-Free Design - Eliminates bulky traditional volute casing, reducing installation footprint by up to 40%. Sleek square structure seamlessly integrates into air handling units and compact ductwork. Supports flexible horizontal, vertical and ceiling mounting options. Perfect for retrofitting existing ventilation systems with limited space.
• High-Efficiency Energy-Saving Performance - Optimized backward-curved impeller design maximizes airflow with minimal energy consumption. Delivers high airflow output at low power levels, reducing long-term operational costs. Precision-balanced rotating components ensure smooth, vibration-free operation. Advanced aerodynamic design minimizes turbulence and improves overall system efficiency.
• Corrosion-Resistant Stainless Steel Construction - Full stainless steel (304/316 optional) impeller and casing for superior durability. Resistant to moisture, chemicals and harsh industrial environments. Ideal for food processing, pharmaceutical, cleanroom and laboratory applications. Optional carbon steel construction available for cost-sensitive standard applications.
• Reliable Industrial-Grade Build - Robust welded frame structure ensures long service life. High-quality industrial motors designed for continuous 24/7 operation. Sealed bearings eliminate the need for regular lubrication. IP54 protection rating for dust and water resistance.
• Comprehensive Customization Options - Fully customizable airflow, pressure, size and motor configurations. Multiple inlet and outlet orientations to match existing ductwork. Optional explosion-proof motors and special coatings available. Custom mounting brackets and accessories to meet specific project requirements.
• Proven Manufacturing Excellence - Manufactured by Hunan Xinhongyuan Hi-Tech (established 1999), a national high-tech enterprise. 30+ years of industry experience in industrial fan R&D and production. Advanced 3D modeling, CFD flow field simulation and FEA analysis technology. Extensive technical cooperation with top universities including Central South University. Annual production capacity of 50,000 units with strict quality control.

Note: All parameters can be fully customized according to specific application requirements. Please contact our engineering team for tailored solutions and accurate pricing.

• Air supply and exhaust for HVAC systems and air handling units (AHUs)
• Ventilation for cleanrooms, pharmaceutical facilities and laboratories
• Air circulation in food processing plants and beverage production lines
• Industrial workshop ventilation and equipment cooling
• Refrigeration and cold storage ventilation systems
• Commercial building ventilation and air conditioning systems
• Laboratory fume extraction and exhaust systems
• Manufacturing and process industry ventilation

• 1× complete LKW/LKWB plenum centrifugal fan unit
• 1× matching high-quality industrial motor
• 1× set of standard installation accessories
• Detailed installation, operation and maintenance manual
• Optional accessories:
  • Custom mounting brackets
  • Vibration isolators
  • Protective grilles
  • Inlet/outlet silencers
  • Air filters
• Packaging: Standard export wooden case for safe transportation

When placing an order, please clearly specify the following information:

• Required fan series (LKW or LKWB)
• Desired air flow and pressure requirements
• Impeller and casing material (304 stainless steel / 316 stainless steel / carbon steel)
• Required voltage, frequency and motor power
• Any special requirements for rotation direction or outlet position
• Customization needs for explosion-proof features or special coatings
• Required optional accessories

Established in 1999, Hunan Xinhongyuan Hi-Tech Co., Ltd. illuminates the industrial landscape with its pioneering spirit and profound expertise in industrial blowers and centrifugal fan equipment. As a distinguished national high-tech enterprise, we masterfully navigate the entire spectrum of research and development, production, sales, and service. Our extensive product range spans axial fans, centrifugal fans, and silent fans, all supported by a seamless and integrated customer service system that fuses R&D, production, and sales into a harmonious whole.

Driven by an unwavering commitment to technological advancement, we embody the 'brand enterprise' philosophy. Our collaborative ventures with illustrious institutions, including Central South University, Zhejiang University, Huazhong University of Science and Technology, and Changsha University of Science and Technology, foster ongoing technical exchange and cooperation. Together, we are empowered to continually push the frontiers of fluid dynamics and engineering excellence.

Our steadfast dedication to groundbreaking independent research and development has led to the formation of a top-tier R&D team. By employing state-of-the-art technologies such as 3D modeling, CFD flow field simulation, FEA finite element analysis, and CAD computer-aided design, we consistently redefine the parameters of fan technology. By seamlessly integrating these cutting-edge methodologies with our vast practical expertise, we persistently innovate and elevate our product offerings, establishing new standards for performance and efficiency in the industry.

1. What are your company's competitive advantages in the industry?
We have advanced technology, high-quality products, a complete after-sales service system, and rich industry experience. In terms of technology, we continue to innovate and continuously introduce products with better performance. In terms of product quality, we strictly control every link to ensure the reliability and stability of the products. In terms of after-sales service, we respond promptly and comprehensively protect the rights and interests of customers. Our rich project experience enables us to quickly and accurately meet the diverse needs of different customers, and has established a good reputation in the industry.

2. What is your main business?
We offer fan-related products, as well as customized solutions on demand, and are always available for consulting services.

3. What are your strengths?
Our team members are professionals in the wind turbine application industry. The company was established for 30 years, focusing on product research and development, and has rich experience in manufacturing process and production management.

4. How do I place an order?
Please contact the service department.