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  • Coal
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  • Coal
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Coal Fired Thermal Oil Boiler

  • Thermal Power 120~12000kw
  • Pressure 0.8 Mpa
  • Fuel Coal
  • Application Textile printing and dyeing, plastic and rubber, paper industry, wood industry, building material, food industry, etc.
  • Certification ISO 9001, SGS , BV, CE,

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Sitong coal fired thermal oil boiler is a safe and energy saving boiler with working characteristics of low pressure (0.8 MPa) and high temperature (350℃). The combustion equipment could be chain grate or fixed grate, The heat carrier is heat conduction oil, the circulating pump force heat transfer medium circulating in liquid phrase, and transfer heat to heat user equipment, then return to the heating furnace for reheating. Because of working in liquid state, the coal fired thermal oil boiler is safe and reliable. 

Owing to its characteristics of high heating temperature, low working pressure, energy saving, the coal fired thermal oil boiler could be widely used in a variety of industrial heating process. Such as petroleum chemical industry, synthetic fiber industry, textile printing and dyeing, plastic and rubber, paper industry, wood industry, building material, machinery industry, food industry, electrical equipment, coking industry, metal and casting industry, detergent industry, fat and paint industry, carbon industry.

Characteristics of Chain Grate

      1)The small scale chain grate could resist the temperature as high as 1200℃, long working life.
      2) The chain grate has a low coal leakage because of the small gap.
      3) Mechanized feed, high automatic degree, decrease labor cost.
      4) Convenient for maintenance, it could be done without boiler shut down.
      5) Based on customers’ requirement and fuel characteristics, the grate could be designed as reciprocal grate.

Products Advantages

1. High Quality Assurance
1) There is a professional design engineer team, before manufacturing, every boiler design drawing have to be approved by boiler and pressure vessel experts of CSBTS ( State Bureau of Quality Technical Supervision ), and then the boiler could be produced only if qualified.
2) To ensure the raw materials quality, all the steel plates are special-used for boiler with the Inspection Certificates. The raw material materials are inspected when entering factory, and only the qualified material could be put in storage and used for production.
3) To ensure the welding quality, there a professional welding team, including more than 30 senior welders. The welding materials are stored under constant temperature and humidity, to ensure the welding material quality.

4) The welding quality will be further examined during boiler manufacturing, by using x-ray detection, ultrasonic flaw detection, magnetic test, or penetration test, etc.

5) To ensure the boiler quality, the leakproofness and strength of pressure parts will be tested. The hydrostatic test is done to make sure there are no water drop or water mist leakage appear on steal wall or welding joint, no water leakage appear at the place of expansion, and no obvious residual deformation and abnormal situation.
6) To ensure no problems before boiler delivery, all the raw materials and boilers are supervised and inspected by the experts of Inspection Institution for Boiler and Pressure Vessel. There are international uality certificates of ISO 9001 and CE, we can also offer the inspection report of SGS, BV, etc., Quality Certificates, Energy audit report, and Energy Efficiency Test Report, etc.

2. Safety Assurance

3. High Efficiency Assurance
The combustion chamber is consisted of chain grate and the front and rear arches, large combustion space, the fuel could burn sufficiently, high combustion efficiency.
The boiler adopts horizontal type three pass structure, improve the heat utilization efficiency , decrease the exhaust smoke temperature, to ensure the high thermal efficiency.

The boiler shell use aluminium silicate board for heat preservation, the thickness of board is 8cm, high thermal shielding efficiency but low heat loss, to increase the boiler thermal efficiency.

By equipping with economizer, make full use of the heat of flue gas, decrease the exhaust smoke temperature, increase the thermal efficiency. 

The boiler could adopt variable frequency water supply, air supply and air induced, to improve boiler operate efficiency. 

4. Professional Installation and After-sale Team
1) Professional engineer installation team offer the door to door installation and after sale service. The boilers will operate smoothly and safety, and you will get them without worries.
2) 24 hours hot-line to solve your problems, and offer the professional technical supports and after sale service in time to all over the world.

5. Convenient Maintenance

There are maintenance holes on the boiler, convenient for boiler internal installation, inspection and clean.


Model Rated power (KW) Working pressure(MPa) Working temperature (℃) Thermal efficiency (%) Overall dimension L×W× H(mm) Reference weight (t)
YGL - 120MA 120 0.8 330 75 1220×1140×2550 2.2
YGL - 350MA 350 0.8 330 75 1873×1683×3558 3.4
YGL - 700MA 700 0.8 330 75 2276×2100×3840 4.8
YGL - 1200MA 1200 0.8 330 75 2900×2500×5133 8.0
YLW-1400MA 1400 0.8 330 75 4121×1900×2900 14
YLW-3000MA 3000 0.8 330 78 6000×2650×3240 30
YLW-4200MA 4200 0.8 330 78 6900×2820×3470 40
YLW-6000MA 6000 0.8 330 78 7900×3200×3475 48
YLW-10000MA 10000 0.8 330 81 9200×3300×3550 70
YLW-12000MA 12000 0.8 330 85 12600×3820×3630 142
Notes: 1. Parameter is for reference only, if any changes should follow actual drawings.
2. Sitong Boiler could customize the specific boiler based on the customers’ requirement and different fuel characteristics.
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.