Wear parts center

Roller


We can provide you with various brands of Roller , also can customize and produce according to your working conditions

Rollers can be divided into the tire type, tapered and cylindrical type, respectively, corresponding to the disc concave, flat disc type and bowl type. At present, most commonly used are tire-type and cone-shaped grinding rollers, which are mostly used for grinding cement raw materials and grinding of raw coal in power plants.

Roller materials are mostly made of high-chromium materials, but in order to extend the service life, surfacing technology has been added to high-chromium precursors to reduce costs and improve efficiency.

We can not only provide users with reliable wear-resistant spare parts for vertical grinding and casting, but also have a professional surfacing team with excellent technology and rich experience. They can be operated on-line and off-line, and can provide users with satisfactory secondary welding. Grinding spare parts.


The Roller we have already produced


High chromium iron roller

High chromium iron roller

Silicon manganese steel roller

Silicon manganese steel roller

Silicon manganese steel roller

Silicon manganese steel roller

Silicon manganese steel roller

we can provides comprehensive material selection for you


High chromium iron

Feature:

We use proper alloying and and related technological measures to make the blow bars’ surface hardness reaches more than 58HRC ,  during the process of wearing will maintain high hardness and high wear resistance.

Technology process

In blow bars’ working part we use the technique of directional solidification to make Cr7C3 type carbide is perpendicular to the part.The macro-hardness and micro hardness of carbide can be improved without reducing thoghness.

Application

Suitable for making wearable spare parts with lower impact load and simpler shape.

 Chemical component


Grade
Chemical component%
C Si Mn Cr Mo Ni Cu S P
BTMCr15 2.0~3.3 ≤1.2 ≤2.0 14~18 ≤3.0 ≤2.5 ≤1.2 ≤0.06 ≤0.10
BTMCr20 2.0~3.3 ≤1.2 ≤2.0 18~23 ≤3.0 ≤2.5 ≤1.2 ≤0.06 ≤0.10
BTMCr26 2.0~3.3 ≤1.2 ≤2.0 23~30 ≤3.0 ≤2.5 ≤2.0 ≤0.06 ≤0.10
1:Allowed to add microscale V,Ti,Nb,B and Re etc.
2:We will choose grade and specific component according to blow bars’ weight ,thickness and sizes

 Mechanical Property

牌号
Grade
表面硬度 Surface Hardness
铸态或铸态去应力
Casting condition
硬化态或硬化态去应力处理
Harded condition
软化退火态
Softening annealing condition
HRC HB HRC HB HRC HB
BTMCr15 ≥46 ≥450 ≥58 ≥650 ≥41 400
BTMCr20 ≥46 ≥450 ≥58 ≥650 ≥41 400
BTMCr26 ≥46 ≥450 ≥58 ≥650 ≥41 400

1:There are no exact corresponing value between rockwell hardness(HRC) and brine hardness(HB),so ,this two kind of hardness value can be inspend used 。
2:The hardness in the 40%deepness of casting section should be lower than 92% hardness of surface.

Medium alloy steel

Feature

The alloy structure cast steel is an iron-carbon alloy formed by adding an appropriate amount of one or more alloy elements on the basis of ordinary carbon steel.

Process technology

According to the different elements added, with appropriate smelting and heat treatment process to obtain high strength, high toughness, high wear resistance, corrosion resistance, low temperature resistance, high temperature resistance, non-magnetic and other related special properties.

Scope of application

It is suitable for producing the wear-resisting spare parts with good mechanical strength and good toughness that are required for various working conditions, and the main steel structure castings with the required dynamic load.

 Chemical component


Grade
Chemical component %
C Si Mn Cr Mo S P Ai
ZG42CrMo 0.38-0.43 0.15-0.35 0.75-1.00 0.80-1.10 0.15-0.25 <0.04 <0.035 -
ZG35CrMo 0.32~0.40 0.17~0.37 0.40~0.70 0.80~1.10 0.15~0.25 ≤0.035 ≤0.035 -
ZG38CrMoAl 0.35~0.42 0.20~0.45 0.30~0.60 1.35~1.65 0.15~0.25 ≤0.04 ≤0.04 0.7~1.1
ZG40Cr 0.37~0.45 0.17~0.37 0.5~0.8 0.8~1.1 - - - -
ZG30Mn2SiCrMo 0.25~0.35 0.40~0.80 1.20~1.60 1.35~1.65 0.2~0.5 ≤0.04 ≤0.04 -

 Mechanical Property

 Grade tensile strength(Mpa) yield strength  (Mpa) Elongation at cross section(%) reduction of crosssection area(%) Shock absorption energy(KV2/J)
ZG42CrMo ≥1080 ≥930 ≥12 ≥20 ≥24
ZG35CrMo ≥985 ≥835 ≥12 ≥20 ≥24
ZG38CrMoAl ≥980 ≥835 ≥14 ≥20 ≥24
ZG40Cr ≥980 ≥785 ≥9 ≥20 ≥24
ZG30Mn2SiCrMo ≥1500 ≥1300 ≥3 - ≥24

 

Crusher brand accessories we accept customized


UBE Japan Fuller USA Losche Germany Liming Heavy Industry (China) Pfeiffer Germany A-C USA
Shenyang Heavy Industry China F.L.Smidth Denmark Kawasaki Japan Sket Germany Raymond USA Mitsubishi Japan
Humboldt Germany IHI Japan Polusius Germany Hefei cement research&design Institute  (HRM) Chuangshu Jiankuang China (CJRM) Jiangsu Pengfei(PRM)

Customer case


Our Australia customer visit our factory

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Our agent from Latvia

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Luoyang Zhili cooperated with Lafarge-holcim cement group in India

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