In industrial production, steam boilers are indispensable equipment, providing a stable supply of steam for various applications such as textile finishing, food processing, paper production, chemical reactions, and pharmaceutical sterilization. The specification of steam boiler varies widely across the market depending on capacity, fuel type, structure, and intended use.

Each specification of steam boiler has its strengths and weaknesses. For example, compact boilers are easier to install and maintain, but they may not achieve the same efficiency as large, customized units. Coal-fired boilers offer relatively low fuel costs but require more complex emission control, whereas gas-fired boilers deliver clean combustion and high thermal efficiency but rely on stable fuel supply. Biomass boilers bridge the gap by offering renewable energy options with moderate costs, though their performance depends on the quality and consistency of the fuel.

In this context, ZOZEN Boiler, a well-established manufacturer with decades of engineering and manufacturing experience, provides industrial customers with a wide range of reliable and efficient solutions. By tailoring the specification of steam boiler to each client’s production needs, ZOZEN has earned recognition across global markets.

ZOZEN Steam Boiler Specifications, Features, and Industry Applications

When analyzing the specification of steam boiler, it is essential to consider technical parameters such as evaporation capacity, rated working pressure, thermal efficiency, and fuel adaptability. ZOZEN offers an extensive product portfolio that covers a broad range of capacities, from 1 ton per hour to more than 100 tons per hour, with working pressures suitable for both medium and large-scale industrial applications.

ZOZEN’s steam boiler specifications are divided primarily into three categories: oil and gas-fired boilers, coal-fired boilers, and biomass-fired boilers. Each category is engineered to deliver stable performance, high combustion efficiency, and compliance with environmental regulations. For instance, oil and gas-fired boilers are widely used in food and beverage industries where clean steam is crucial, while coal-fired and biomass-fired boilers are often deployed in textiles, paper, and other sectors with diverse fuel availability.

The history of ZOZEN Boiler dates back over three decades. Since its founding, the company has grown from a domestic supplier into a recognized international brand with customers in Asia, Europe, Africa, and South America. By continuously investing in research and development, ZOZEN has introduced advanced designs such as membrane water walls, low-NOx burners, and automated control systems into its boiler specifications. Today, the company is known not only for delivering high-quality equipment but also for offering customized energy solutions based on industry-specific requirements.

ZOZEN WNS Boiler finished product warehouse

Detailed Specifications of ZOZEN WNS, DZL, and SZL Steam Boilers

Among ZOZEN’s product lineup, three series stand out due to their distinct specifications and wide application scope: the WNS series oil/gas-fired steam boiler, the DZL series single-drum biomass-fired steam boiler, and the SZL series coal-fired steam boiler. Each reflects a carefully engineered specification of steam boiler that balances efficiency, durability, and adaptability.

The WNS series is a horizontal, three-pass, wet-back steam boiler designed for efficient combustion of natural gas, diesel, or light oil. Its steam capacity generally ranges from 1 to 20 tons per hour, with a rated pressure between 0.7 and 2 MPa. The furnace adopts a large-diameter corrugated design, which enhances heat transfer and accommodates thermal expansion. Threaded smoke tubes further increase the heating surface area, improving thermal efficiency above 98% when equipped with economizers and condensers. The WNS boiler integrates an advanced burner system capable of precise fuel-air mixing, ensuring complete combustion and reducing NOx emissions to below 30mg/Nm³. For industries requiring automated operation, the boiler is equipped with intelligent control systems, including automatic water feeding, combustion regulation, and real-time monitoring of pressure and water levels. This combination of design features makes the WNS series particularly suitable for food, beverage, and pharmaceutical sectors where steam quality and stability are paramount.

The DZL series single-drum biomass steam boiler is engineered to meet the rising demand for renewable energy solutions. Its capacity typically ranges from 2 to 10 tons per hour, with rated working pressure around 1 to 2.5 MPa. The specification of steam boiler in this series highlights its adaptability to various biomass fuels such as wood pellets, rice husks, corn cobs, and agricultural residues. The chain grate system, paired with an optimized furnace arch, ensures even fuel distribution and thorough combustion. Independent air chambers with adjustable dampers provide precise air supply at different combustion stages, significantly improving fuel burnout and reducing unburned carbon. The DZL series also features self-cleaning convection heating surfaces, which minimize ash accumulation and extend operation cycles between maintenance. By integrating low-NOx combustion technology, the boiler reduces harmful emissions, making it an environmentally responsible choice for paper mills, textile factories, and agricultural processing plants.

The SZL series coal-fired steam boiler is designed with a double-drum, chain grate configuration and is suitable for high-demand industrial environments. Its steam capacity can reach from 6 tons to over 35 tons per hour, with rated pressures between 1 and 2.5 MPa. The specification of steam boiler in this series emphasizes durability and efficiency. The furnace is equipped with membrane water walls for enhanced sealing and reduced heat loss, while the wide combustion chamber allows for complete fuel combustion. Threaded smoke tubes and economizers are used to maximize heat recovery from flue gases, significantly increasing thermal efficiency. To address the variability of coal quality, the SZL boiler incorporates multiple independent wind chambers and adjustable air dampers, allowing precise air distribution for efficient fuel utilization. This series has been widely adopted in industries such as paper production, chemicals, and building materials, where large volumes of reliable steam are required.

Why Choose ZOZEN Steam Boilers Based on Specification

The analysis of the specification of steam boiler shows that selecting the right unit depends on a careful balance between capacity, fuel availability, efficiency, and compliance with environmental standards. ZOZEN Boiler offers a diverse range of specifications that allow industries to select the most appropriate solution for their production processes.

Beyond technical specifications, ZOZEN provides strong after-sales support. Services include system design consultation, on-site installation guidance, operator training, and regular technical inspections. This ensures that customers not only receive a boiler with the correct specification but also maintain long-term reliable operation.

For enterprises seeking to optimize their energy systems, choosing ZOZEN means securing equipment that aligns with the required specification of steam boiler, backed by comprehensive service and decades of expertise. By combining advanced technology with practical project experience, ZOZEN Boiler continues to be a trusted partner in the industrial steam boiler market.