Shandong Zhanggu Series C Centrifugal Blower: High-Efficiency Multistage Solution for Industrial Gas Transmission

As a listed company on the Shenzhen Stock Exchange (stock code: 002598) with over 50 years of experience in the blower industry, Shandong Zhangqiu Blower Co., Ltd. (referred to as "Shandong Zhanggu") leverages profound technical accumulation and innovative strength to launch the Series C Centrifugal Blower. With core advantages of high efficiency, energy saving, stable reliability, and wide adaptability, it has become the preferred equipment for gas transmission in water treatment, steel, petrochemical, mining and other industries, injecting strong momentum into enterprises' cost reduction, efficiency improvement and green development.

I. Product Positioning: A High-Efficiency Benchmark for Multistage Low-Speed Centrifugal Blowers

The Series C Centrifugal Blower is a new generation of multistage low-speed centrifugal equipment developed by Shandong Zhanggu. It integrates advanced technologies at home and abroad, combined with over 50 years of fan design and manufacturing experience, specifically to meet the needs of various industries for low energy consumption, high stability and wide adaptability. The series includes welded multistage centrifugal blowers and customized derivative models. Through optimization with multiple proprietary technologies, it outperforms the industry average in key indicators such as aerodynamic efficiency, operating noise and vibration control. It can be widely used for pressure transmission of air, nitrogen and non-corrosive mixed gases, providing accurately matched gas solutions for different working conditions.

II. Core Technical Highlights: Comprehensive Breakthroughs from Design to Performance

1. Ternary Flow Technology Empowers Leading Efficiency

· High-Efficiency Impeller Design: Adopts ternary flow meridian surface combined impeller and compound profile technology, optimized with CFD flow field simulation. The aerodynamic efficiency of the impeller is significantly improved, with the polytropic efficiency of the blower reaching over 78%. It saves 15%-20% more energy than traditional models, greatly reducing enterprises' energy consumption costs during long-term operation.

· Streamlined Flow Channel Optimization: The inlet and outlet casings, return channels are deeply matched with impeller parameters. The streamlined structure minimizes gas flow loss; the airfoil return vane design further improves the static pressure energy conversion efficiency, ensuring smoother air flow transmission.

2. Precision Manufacturing Ensures Stable and Reliable Operation

· Rotor Dynamic Balance Control: The rotor is strictly calibrated with the German Schenck H40U dynamic balancing machine (capable of handling rotating parts weighing 3 tons and 5 meters long), achieving a balance accuracy of G1 grade. It operates with low vibration and low noise (the overall noise of the machine is controlled within 85dB(A)), and the service life of core components is extended to more than 10 years.

· High-Quality Core Components: Bearings are imported SKF products (rolling bearings/sliding bearings optional), combined with a high-quality lubrication system, with a design life of over 100,000 hours. The impeller can be made of high-strength aluminum alloy casting or carbon steel welding process, adapting to different medium and temperature requirements (conventional intake temperature: -20~40℃, special materials can withstand higher temperatures).

3. Intelligent Operation and Maintenance Reduces Management Costs

· Online Monitoring System: Equipped with an intelligent monitoring platform independently developed by Shandong Zhanggu. Through sensors, it collects key data such as bearing temperature, vibration, and inlet and outlet pressure in real time, realizing remote monitoring, abnormal early warning and fault location. This reduces manual inspection costs and avoids the risk of unplanned downtime.

· Flexible Adaptation Design: A single model can be compatible with two speeds (50Hz/60Hz), with a wide flow adjustment range (20~800m³/min) and a flat performance curve. It has a wide stable working condition range, capable of coping with flow fluctuation requirements under different processes.

III. Performance Parameters: Accurate Matching for Diverse Working Conditions

Adhering to the design principle of "wide range and high adaptability", the Series C Centrifugal Blower covers most industrial scenarios with its core performance parameters:

· Flow Range: 20~800 m³/min (customized non-standard flow available according to working conditions)

· Boost Pressure: 19.6~98 kPa (maximum outlet pressure ≤0.3MPa)

· Transport Medium: Air, nitrogen, non-corrosive mixed gases (dust content ≤10 mg/Nm³)

· Intake Temperature: -20~40℃ (special materials can adapt to higher temperature working conditions)

· Impeller Type: Cast aluminum alloy/carbon steel welding (selected on demand to balance strength and corrosion resistance)

· Balance Accuracy: G1 grade (calibrated by German Schenck dynamic balancing machine)

IV. Industry Applications: Deeply Adapting to Multi-Field Needs

With the dual advantages of high efficiency and reliability, the Series C Centrifugal Blower has been widely used in multiple key industries, providing stable gas transmission support for core processes:

· Water Treatment Industry: Used in the aeration process of municipal and industrial wastewater treatment, providing sufficient oxygen to assist microorganisms in degrading pollutants. It is suitable for sewage treatment plants with a scale of over 20,000m³/d.

· Steel Industry: Provides blast support for blast furnaces and cupolas, adapts to large equipment such as 360㎡ sintering machines, and meets the stable operation under high temperature and high load conditions.

· Petrochemical Industry: Supports exhaust gas desulfurization towers and refining equipment, with a maximum processing air volume of 1.32 million m³/h, helping enterprises achieve ultra-low emission transformation.

· Mining Industry: Used for gas transmission in the mineral flotation process, providing stable air pressure for mineral separation. It adapts to the different production capacity needs of small and medium-sized mines to large mining groups.

· Chemical Industry: Transports clean gases for gasification, electroplating and other processes, avoiding medium pollution and ensuring production safety and product quality.

V. Structure and Operation & Maintenance: Balancing Convenience and Economy

1. Optimized Structural Design for Efficient Installation

· Precision Machining of Stator: The stator adopts a welded horizontal split structure. After strict stress relief annealing, it is processed in one piece on a large machining center, with high coaxiality to ensure the smooth operation of the rotor.

· Flexible Installation Methods: A common base with shock-absorbing pads is optional, no anchor bolts required, reducing foundation construction costs and time, especially suitable for scenarios with limited space.

· Modular Layout: The lubricating oil system, motor and blower are compactly integrated, reducing the floor space by 15% compared with traditional models and saving workshop space.

2. Low-Consumption Operation & Maintenance Design for Reduced Long-Term Costs

· Few Wear Parts: Core components are made of high wear-resistant and corrosion-resistant materials, with the number of wear parts reduced by 60% compared with traditional blowers, reducing replacement frequency and maintenance costs.

· Rapid After-Sales Response: Relying on a service network of 42 offices nationwide, it can achieve "response within 1 hour and on-site arrival within 24 hours". Combined with the intelligent early warning system, it minimizes downtime.

VI. Strength Guarantee: Four Reasons to Choose Zhanggu

Technical Precipitation: Over 50 years of experience in fan R&D and manufacturing, cooperative R&D with universities such as Xi'an Jiaotong University, accumulating more than 60 core intellectual property rights, leading the industry in technical level.

Manufacturing Strength: Covers a 430,000-square-meter modern industrial park, equipped with internationally advanced processing equipment (such as high-precision vertical lathes, welding robots) and testing equipment, ensuring product precision and consistency.

Qualification Certification: Passed ISO9001 quality management system certification. Products comply with national and industry standards such as JB/T7258-2006 "General-Purpose Centrifugal Blowers", with reliable quality.

Service Network: Provides professional pre-sales selection consultation, in-sales installation and commissioning assistance, and full-life-cycle after-sales operation and maintenance support, allowing customers to "buy with confidence and use at ease".

Logistics and delivery guarantee

The company bears the logistics costs to ensure product safety and timely delivery to customer sites. The product is packaged in sturdy sea freight export wooden boxes to ensure that it is not damaged during transportation.