1200°C Ashing Furnace with Integrated Air Intake and Exhaust System

describe

The 1200°C ashing furnace features an integrated air intake and exhaust system, ensuring efficient combustion, uniform heating, and accurate ash analysis for laboratory and industrial applications.

Product Features

Intake and exhaust system

• The furnace is equipped with a high-precision rotameter and manual flow control valve, providing accurate adjustment of gas flow during the ashing process. This configuration allows operators to regulate airflow according to specific process requirements, ensuring stable combustion conditions and improved testing accuracy.
• By precisely controlling the gas supply, the system helps maintain an optimized furnace atmosphere, promoting complete sample oxidation and enhancing the consistency of ashing results. The adjustable airflow also supports different material types and processing conditions, improving operational flexibility.
• In addition, the integrated exhaust management design efficiently removes combustion byproducts and process gases from the furnace chamber. Continuous exhaust discharge helps maintain a clean internal environment, reduces contamination risks, and improves workplace safety. The combination of precise gas control and effective exhaust handling ensures stable thermal performance, reliable analytical results, and efficient operation for laboratory analysis, material testing, environmental monitoring, and industrial quality control applications.

Furnace body structure and materials

• The furnace adopts an advanced double-walled carbon steel structure with an integrated air-cooling system, providing enhanced thermal management and long-term operational reliability. Carefully engineered air-guiding baffles create a continuous circulation path for cooling air throughout the furnace shell, ensuring efficient heat dissipation and maintaining structural stability during prolonged high-temperature operation.
• When the external surface temperature reaches 50°C, the intelligent cooling system automatically activates, eliminating the need for manual intervention. The cooling airflow is directed through critical areas of the furnace body, effectively reducing accumulated heat before being discharged. Prior to exhaust, the airflow passes over the conductive tabs of the heating elements, significantly lowering their operating temperature and minimizing the risk of oxidation caused by prolonged exposure to high heat.
• This optimized cooling design not only protects key electrical components but also extends the service life of heating elements and electrical connections. By reducing thermal stress and preventing premature component degradation, the system improves overall equipment reliability and lowers maintenance requirements.
• In addition, the air-cooled furnace body helps maintain a safer and more comfortable working environment by reducing external surface temperatures around the equipment. The combination of automatic temperature-triggered cooling, efficient airflow circulation, and conductive tab protection ensures stable performance, enhanced safety, and superior durability for demanding laboratory and industrial heat-treatment applications.

Safe temperature control

• The furnace is equipped with an advanced thyristor-based closed-loop power control system that supports both phase-angle triggering and zero-crossing triggering technologies. This design enables continuous and precise adjustment of output voltage, current, and power, allowing the system to operate in constant-voltage, constant-current, or constant-power modes according to process requirements.
• A dual-loop control architecture is employed, with the current loop serving as the inner control loop and the voltage loop functioning as the outer control loop. This coordinated regulation strategy ensures rapid response to load variations while maintaining excellent output stability throughout the heating process. Even under changing operating conditions, the system delivers accurate and reliable power control for consistent thermal performance.
• When sudden load fluctuations occur or the load current exceeds the preset limit, the controller automatically restricts the output current within the rated operating range. Simultaneously, the voltage loop actively participates in regulation to maintain stable voltage and current output, ensuring sufficient control margin and preventing system instability.
• This intelligent protection mechanism effectively shields heating elements from excessive current surges, voltage spikes, and electrical stress, significantly extending component service life. By combining high control precision, fast dynamic response, and comprehensive electrical protection, the system delivers safe operation, improved temperature stability, enhanced process repeatability, and long-term reliability for demanding laboratory and industrial high-temperature applications.

Customizable specifications and models

Application areas

• Ideal for coal, biomass, food, and mineral ash content analysis in laboratories, testing centers, and quality control departments.
• Suitable for environmental monitoring, waste residue testing, and sample oxidation processes requiring controlled airflow and exhaust management.
• Widely used in universities, research institutes, and industrial laboratories for material characterization, combustion studies, and thermal analysis.

Why Choose Us

• Precise temperature control for accurate ashing results.
• Integrated intake and exhaust system for cleaner operation.
• Custom solutions with reliable technical support.

FAQ

Q1: What is the maximum operating temperature of the furnace?

A: The furnace operates up to 1200°C, suitable for ash analysis and thermal testing applications.

Q2: What is the function of the integrated air intake and exhaust system?

A: It ensures sufficient airflow, complete combustion, and efficient exhaust gas removal during ashing.

Q3: Which materials can be tested in this ashing furnace?

A: It is suitable for coal, biomass, food, minerals, environmental samples, and industrial materials.

Q4: Does the furnace provide precise temperature control?

A: Yes, the intelligent control system delivers stable temperature regulation and reliable test results.

Q5: Can the furnace be customized for specific requirements?

A: Yes, chamber size, control functions, and system configurations can be customized as needed.