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Hangzhou Thermal Launches RDT Series Automatic Coal Feeder for Coal-Fired Boilers, Paving the Way for Industrial Coal-Feeding Automation
Release time:
2025-09-19
Hangzhou Redong launched RDT series automatic coal feeders in Sept. 2025, introducing their advantages, applications and services to boost industrial coal-feeding automation.
In September 2025, Hangzhou Thermal Engineering Technology Co., Ltd. (hereinafter referred to as "Hangzhou Thermal") officially launched the RDT Series Automatic Coal Feeder for Coal-Fired Boilers. As a high-efficiency coal-feeding auxiliary equipment specially designed for coal-fired hot blast stoves, this series of products provides a new solution for the industrial heating field with its core advantages of automated operation, safety and reliability, helping enterprises reduce costs and improve efficiency. It is now fully available on the market.
I. Core Advantages of the Product
| Advantage Category | Specific Features | Basis and Description |
| Automation and Controllability | 1. One-button operation: Press the button on the electrical control cabinet to start the upward and downward movement processes without manual supervision throughout the process; 2. Precise start-stop: Equipped with a brake motor, the coal hopper can stop at any position; 3. Automatic trigger: The power is automatically cut off when the roller touches the travel switch, realizing the automatic connection of coal dumping during upward movement and stopping during downward movement | From the "Overview" and "Usage Precautions" in the manual: The equipment operates through the linkage of the reduction gearbox and winch, combined with the control of upper and lower travel switches. The operation process requires no manual intervention, and the brake motor ensures controllable start and stop |
| Safety and Reliability | 1. Double protection: Travel switches are installed at the upper and lower parts of the column to prevent overtravel of the trolley; 2. Stable structure: The steel wire rope adopts the specification of Ø10-Ø12, fixed with clamps, and should be replaced in time when the number of broken strands reaches 1/4; 3. Grounding requirement: The equipment must be well grounded to comply with electrical operation safety standards | From the "Installation" and "Usage Precautions" in the manual: The screws of the travel switches should be checked regularly for tightness; the steel wire ropes and clamps should be inspected regularly; the grounding requirement ensures electrical safety |
| Adaptability and Flexibility | 1. Wide range of models: 7 models (from RDF-80 to RDT-500), suitable for coal-fired stoves with inner width ranging from 812mm to ≥2552mm, and the rated coal capacity of the coal hopper ranging from 80kg to 500kg; 2. Small space adaptation: Small floor space required for operation in front of the stove, suitable for different workshop layouts; 3. Reinforceable design: The beam can be reinforced with 6# angle steel braces connected to the platform or the coal-fired stove to improve mechanical rigidity | From the "Main Technical Parameters" and "Installation" in the manual: The model parameters cover the needs of different equipment, and flexible reinforcement can be carried out during installation to adapt to various site conditions |
| Ease of Maintenance | 1. Simple maintenance of the reducer: The worm gear reducer is filled with 30# engine oil, which should be changed after the first month of operation and then once a year; 2. Easy inspection of vulnerable parts: Vulnerable parts such as travel switches, steel wire ropes and clamps are easy to inspect and replace; 3. Easy maintenance of the structure: The equipment operates stably without complex vulnerable structures, resulting in low daily maintenance costs | From the "Usage Precautions" in the manual: The oil change cycle of the reducer is clearly specified, and the inspection standards for vulnerable parts are clear, reducing the difficulty of later operation and maintenance |
II. Application Scope of the Product
| Application Field | Suitable Scenarios | Basis for Adaptation |
| Supporting Coal-Fired Hot Blast Stoves | Automatic coal-feeding links of various small, medium and large coal-fired hot blast stoves, such as hot blast stoves for factory heating and workshop drying | From the "Overview" in the manual: The product is positioned as "coal-feeding auxiliary equipment for coal-fired hot blast stoves", and the multiple models cover the needs of different inner widths and coal capacities, suitable for various specifications of hot blast stoves |
| Industrial Production Heating Systems | Production links requiring continuous coal-fired heating in building materials production, food processing, chemical auxiliary, etc., such as coal-feeding for coal-fired stoves in building materials kilns and food drying lines | The automated operation of the equipment can ensure continuous and stable coal supply, avoid heating fluctuations caused by untimely manual coal-feeding, and meet the needs of continuous industrial production |
| Small and Medium-Sized Heating Stations | Coal-feeding operations for coal-fired heating stoves in small and medium-sized heating stations in communities and factory areas | Small floor space required for operation in front of the stove, suitable for the compact layout of heating stations; automated operation reduces labor costs, making it suitable for efficient operation and maintenance of heating stations |
| Supporting Other Coal-Fired Equipment | Various industrial coal-fired equipment requiring regular and quantitative coal-feeding, such as small industrial boilers and biomass mixed coal-fired stoves | It can be adapted to different equipment installation conditions through reinforcement design, and the coal hopper capacity and motor power match the coal-feeding needs of various coal-fired equipment |
III. Corporate Services and Support
| Service Category | Service Content | Contact Information |
| Technical Consultation | Provide professional technical consultation on product selection, installation guidance and maintenance Q&A | Tel: 86-571-86722520; Fax: 86-571-86726270; Email: rosiedong@hzThermal.com |
| After-Sales Support | Assist in solving fault problems during equipment operation and provide suggestions on replacement of vulnerable parts | Same as the above contact information, with prompt response from the professional team of Hangzhou Thermal |
| Company Information | Same as the above contact information, with prompt response from the professional team of Hangzhou Thermal | Same as the above contact information, with prompt response from the professional team of Hangzhou Thermal |
Hangzhou Thermal has always adhered to the goal of "providing stable and efficient industrial thermal energy auxiliary equipment for users". The launch of the RDT Series Automatic Coal Feeder for Coal-Fired Boilers is the result of the in-depth combination of the company's technical strength and user needs. In the future, the company will continue to optimize product performance, provide high-quality equipment and services for more industrial customers, and promote the automation upgrading of the industrial coal-feeding link.
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Contact: Rosie
FAX: +86-571-86726270
Room 605, 6th Floor, Building 2, East Station Garden Business Center, Shangcheng District, Hangzhou City, Zhejiang Province