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SZL Series Biomass Chain Grate Steam Boiler

  • Steam Capacity 2t/h-20t/h
  • Steam Pressure 0.7Mpa-3.8Mpa
  • Available Fuel Biomass Pellet, Wood Chips, Bamboo Chips, Straw, Rice Hull, Peanut Shell, Bagasse, Mustard Stalk, Cotton Stalk, Cotton Seeds, Coconut Shell, Corncob, Waste Cloth, Etc.
  • Application Textile Industry, Food Industry, Sugar Industry, Paper Industry, Chemical Industry, Garment Industry, Waste Processing Industry, etc.
  • Certification CE, SGS, BV, ISO9001, CCC, etc.

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SZL Series Biomass Chain Grate Steam Boiler is designed by our engineer that learn the advanced technology at home and abroad and experience, which is the horizontal type double drum Longitudinal type chain grate water tube steam boiler and hot water boiler .This series boiler has reached the international advanced level at technology, performance, environment protection.


This series steam boiler is widely used in industry and life which need steam, the relevant capacity hot water boiler is widely used in industry and heating for civil use. It is also ideal for heating, textile plant, rice mill, garment factory, utility or power plant, hospital, hotel, etc.

Technical Advantages:
1.Furnace arch form adopts advanced design, forming obvious inverse “α” flue gas flow, which make the boiler have strong adaptability.
2.Boiler’s back and forth arches are water-cooling “warm arch” structure, which can protect furnace arch.
3.Boiler adopts bilateral inlet air and independent plenum structure, can adjust blast capacity and wind pressure of each plenum, to ensure the burning effect.
4.Grate back-shaft adopts roller bearing structure, to avoid sliding bearing over-burning.
5.The bottom road rail of grate adopts light rail, which improve the operation’s reliability.
6.The length of grate is longer 500-1000mm than domestic, which enhance the thermal efficiency.
7.Boiler design adopts light furnace wall structure, which makes the absorbed heating capacity reduce and the boiler starts and stops quickly.


Model Rated Evaporation Capacity (t/h) Rated Working Pressure (Mpa) Feed Water Temperature (℃) Steam Temperature (℃) Design Efficiency (%) Exhaust Gas Temperature (℃)
SZL4-1.25/1.6-T 4 1.25/1.6 20 194/204 78 160
SZL6-1.6/2.5-T 4 1.6/2.5 20 204/226 82 140
SZL8-1.25-T 8 1.25 20 194 80 147
SZL10-1.25-T 10 1.25 60 194 81 150
SZL10-1.6-T 10 1.6 60 204 81 155
SZL10-2.5-T 10 2.5 60 226 80 150
SZL15-1.25-T 15 1.25 105 194 80 170
SZL15-1.6-T 15 1.6 105 204 82 132
SZL20-1.25-T 20 1.25 105 194 83 145/168
SZL20-1.6-T 20 1.6 105 204 83 139
SZL20-2.5-T 20 2.5 105 226 83 143
SZL25-2.5-T 25 2.5 105 226 79 160
SZL25-1.25/300-T 25 1.25 105 300 81 150
Note: Parameter is for reference only, if any changes should follow the factory technical data.
Transaction Process
Customer Inquiry -- Offer Professional Consulting Service -- Place Order -- Customize Boiler Based on Customers’ needs --Production-manufacturing -- Payment -- Impeccable After Sale Service (installation and debugging, periodic maintenance, etc.)

Offered Technical Documentations
Installment and Operation Instruction
Quality Certificate
Inspection Certificate of Boiler quality
General Drawing of Boiler
Foundation Drawing
Boiler Body Drawing
Boiler Room Design Drawing
Drawing of Valves, Instruments and Accessories

Company Strength
Sitong boiler is a national approved and designated enterprise, with design and manufacture license permits of Class A boiler and D1, D2 pressure vessel. The company has passed ISO 9001 international quality system certification, and gained the international certificates of CE, SGS, and BV, etc. The boiler products are exported to more than 60 countries. The factory covers an area of 120 thousands㎡, equipped with plenty of international advanced manufacture equipment, such as CNC cutting machine, automatic submerged arc welding machine, X-ray detection machine, etc.
company strength of Sitong Boiler


Contact us now if you have any question about our company and products[email protected]. Any of your inquiry and suggestion will be highly appreciated. We will keep your information completely private.