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SZL Shop-assembled Water Tube Steam Boiler

  • Capacity/output 2~20 t/h
  • Steam Pressure 1.0/1.25/1.6/2.5 Mpa
  • Available Fuels Coal/wood pellet/rice husk/ peat pellet/biomass
  • Application pharmaceutical industry, chemical industry, light industry, textile, building materials, farming, food and beverage
  • Certification CE, SGS, BV, ISO9001, CCC, etc

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SZL shop-assembled water tube steam boiler is the horizontal type double drum longitudinal type chain grate water tube steam boiler. The boiler is assembled with two drums and convection bank inside. Water wall tubes are placed on the left and right side of the burner. Moreover, there is a steam-water separator and surface blow down device that fixed in the upper drum, and a periodic blow down device fixed in the another drum. Economizer is distributed on the tail of the boiler. 
1.Petroleum and chemical industry, polymerization, melting, condensation, distillation, forced heat preservation.
2.Textile printing and dyeing industry: hot finalize design, thermosol dyeing, baking, calender drying and hot air stenter.
3.Plastic and rubber industry: hot-press, hot-extent, extrusion, calendering, injection, conveyor dryer, etc.
4.Paper industry dry, corrugated paper processing, glue roller, etc.
5.Machinery industry: spray drying of printing, assembly processing, dry cleaning.
6.Food industry: baking bread and baking cookies, cooking pot, autoclave and conveyor dryer.
Performance Advantages:
1.The boiler is consist of two parts, the boiler body and the accessories which include coal scuttle, the chain grate stoker, base steel and the furnace wall. The boiler is assembled expect the midfeather when it is leaving the factory with economizer and duct furnace.
2.The burning part of the boiler adopts the light chain grate. There are six independent air compartments under the fire grate and air registers placed at the both sides of the air compartments. So that the air can come into the air duct by the blower in the base, then in the independent wind room.
3.There is an electric control cabinet that equipped with boiler. The cabinet includes indicator of the thermal parameter, induced and forced draft fan, control buttons of the electric actuators, and over-temperature alarm device of the auto water feeder.


Model Rated evaporation
Working pressure
Rated steam temperature/
outlet temperature(℃)
Fuel type Overall dimension part for transportation
SZL2-0.8/1.0/1.25/1.6/2.5-T 2 0.8/1.0/1.25/1.6/2.5 175/184/194/204/226 II-class soft coal,
Low calorific value
SZL4-1.0/1.25/1.6/2.5-T 4 1.0/1.25/1.6/2.5 184/194/204/226 7730×2360×3520
SZL6-1.0/1.25/1.6/2.6-T 6 1.0/1.25/1.6/2.5 184/194/204/226 up 6150×2840×3540 down 7275×2852×2580 
SZL8-1.0/1.25/1.6/2.7-T 8 1.0/1.25/1.6/2.5 184/194/204/226 up 6971×2933×3540 down 8056×2945×2580  
SZL10-1.0/1.25/1.6/2.8-T 10 1.0/1.25/1.6/2.5 184/194/204/226 up 7855×3240×3540 down 9025×3200×2580  
SZL15-1.0/1.25/1.6/2.9-T 15 1.0/1.25/1.6/2.5 184/194/204/226 up10000×3240×3540 down 12000×3200×3080 
SZL20-1.0/1.25/1.6/2.10-T 20 1.0/1.25/1.6/2.5 184/194/204/226 up 11000×3240×3540 down 14000×3200×3080  
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

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