Grate Bar

 

Your Professional Grate Bar Manufacturer!

 

 

Tengzhou Tiangong Machinery Co., Ltd. was founded in June 2004. It is a professional precision casting enterprise with product development, quality assurance and mass production capabilities. The company currently has 82 employees and covers an area of 13,000 square meters, of which the factory area is 10,000 square meters.

 

 
First 123 Last 1/3
 
 
Why Choose Us
 
01/

Quality Control
We attach a detailed quality inspection report to each batch of goods to ensure that the product quality meets high standards and eliminates customers' quality concerns.

02/

Professional Team
The company has a high-quality professional team composed of experts in sales, R&D, technology and after-sales service, which can fully meet the needs of different customers.

03/

Advanced Equipment
The company is equipped with advanced physical and chemical testing equipment, including a spectrometer imported from Germany, a mechanical properties testing machine of American standards, and an impact tester and hardness tester of a well-known domestic brand, to ensure accurate detection of product quality.

04/

Production Capacity
The company has a strong production capacity of 2,000 tons of precision castings and 3,000 tons of coated sand castings per year, which can efficiently meet customers' order needs.

 

Grate Bar for Power Plant

 

Custom Grate Bars

We offer custom grate bar manufacturing solutions to meet your needs. Key customizable options:
● Material
● Size
● Shape
● Aperture
● Gradient Layout
● Surface Treatment

Our Best-Selling Grate Bar

Our Company Has More Products to Offer, Please Browse the Product Categories on the Website, If You Have Any Needs, Please Contact Us. 

 

Grey Cast Iron Grate Bar EN-GJL-200
A grate bar refers to a series of strip holes in a combustion equipment opened by many air vents or combustion frequencies, usually made of metal materials, which can withstand constant high temperatures. The grate strip is usually located at the bottom of the furnace, can also be on the side or upper part of the combustion chamber, its role is to allow the gas and solid fuel through, promote the combustion reaction.

 

Heat Resistant Steel Intermediate Grate SCH11
Heat Resistant Steel Intermediate Grate Sch11 Heat resistant steel intermediate grate SCH11 Is one of the main grate strip products we produce, using precision casting process, manufacturer direct sales, excellent material, quality assurance, diverse specifications, welcome customization.

 

High Chrome Cast Steel Grate Bar
High Chrome Cast Steel Grate Bar is high quality and strong furnace strip, its production process is more complex, the cost is high, suitable for high temperature furnace. The advantages of steel grate are high strength, heat resistance, corrosion resistance, not easy to deformation, long service life.

 

Sinter Grate Bar
The grate strip is usually made of superalloy material and has extremely high wear and heat resistance. This material can maintain stable performance in high temperature environment, while can resist the wear of materials in the furnace and corrosion of high temperature gas. The grate strip is usually designed with a special structure to enhance its wear resistance and extend its service life.

 

 
Grate Bars Material Analysis
 

Specification

Chemical Composition (wt.)

Specification

Chemical Composition (wt.)

C

Si

Mn

Cr

Mo

Ni

Cu

C

Si

Mn

Cr

Mo

Ni

Cu

KmTBNi4Cr2

2.4-3.0

≤0.8

≤2.0

1.5-3.0

≤1.0

3.3-5.0

/

KmTBNi4Cr2

2.4-3.0

≤0.8

≤2.0

1.5-3.0

≤1.0

3.3-5.0

/

KmTBNi4Cr2-

3.0-3.6

≤0.8

≤2.0

1.5-3.0

≤1.0

3.3

/

KmTBNi4Cr2-

3.0-3.6

≤0.8

≤2.0

1.5-3.0

≤1.0

3.3

/

KmTBCr9Ni5

2.5-3.6

≤2.0

≤2.0

7.0-11.0

≤1.0

4.5-7.0

/

KmTBCr9Ni5

2.5-3.6

≤2.0

≤2.0

7.0-11.0

≤1.0

4.5-7.0

/

 

 

Grate Bars Heat Treatment Standard

 

 

Grades

Softening annealing treatment

Hardening

Stress relief

KmTBCr12

Keep at 920-960℃ for 1-8h, slowly cool to 700-750℃ and keep it for 4-8h, cool to below 600℃, then air cooling or furnace cooling

Heat preservation at 920-980℃ for 2-6h, air-cooled after furnace

200-300℃ heat preservation for 2-8h, air cooling or furnace cooling

KmTBCr15Mo

Insulation at 920-960℃ for 1-8h, slow cooling to 700-750℃ for 4-8h, slow cooling to below 600℃

Heat preservation at 920-980℃ for 2-6h, air-cooled after furnace

KmTBCr20Mo

960-1000℃ heat preservation for 1-8h, slow cooling to 700-750℃, heat preservation 4-10h, slow cooling to below 600℃, air cooling or furnace cooling

Heat preservation at 960-1020℃ for 2-6h, air cooling out of the furnace

KmTBCr26

960-1060℃ heat preservation for 2-6h, air cooling after furnace

 

 

Grate Bars Working Environment

● Erosion of high temperature and high speed powder-gas two-phase flow.
● Corrosion: Oxidation and corrosion of CO, CO2, SO2 and water vapor in the atmosphere.
● Large temperature changes: During sintering, the temperature of the sintered ore is as high as 1100℃, and the temperature of the grate is generally 800-1000℃, after unloading, the temperature in the air drops rapidly to 100-300℃.
● Impact and friction and wear of sintered ore: Impact and friction and wear of sintered ore during loading and unloading;
● High temperature load-bearing: Bear the gravity of sinter during high temperature sintering.

Furnace Grate Bar for Industrial

 

 

Applications of Grate Bars

 

 

  • Reciprocating Step Grates
  • Slope Grates
  • Pinhole Grates
  • Traveling Grates

Overthrust Grates

Biomass Step Grates

Biomass Combustion

Solid Fuel Combustion

Bark Burner Furnace

 

 

Packaging and Shipping

 

 

Packaging

Wooden box

Transport

Road transport, rail transport, sea transport, air transport

 

 

FAQ

 

 

Q: What materials are grate bars commonly made of?

A: They can be made of various materials such as cast iron, steel, or alloys.

Q: Where are grate bars commonly used?

A: Grate bars are often used in industrial furnaces, boilers, and stoves.

Q: How do grate bars contribute to the functionality of a system?

A: They provide support for fuel or material and allow for proper air circulation and combustion.

Q: How are grate bars installed?

A: They are usually placed in a specific pattern and secured using bolts or other fastening methods.

As one of the leading grate bar manufacturers and suppliers in China, we warmly welcome you to buy or wholesale discount grate bar made in China here from our factory. All our products are with high quality and low price. For pricelist and quotation, contact us now.

Boiler Parts Grate Bar,

(0/10)

clearall