Wear parts center

crusher hammer head


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

Crusher hammer head is assembled on the hammer shaft of the crusher rotor, directly hitting the material during the high-speed operation of the crusher, and ultimately obtaining a suitable finished material.  Hammer head is the core working part of the hammer crusher, and the quality of the hammerhead determines the work effect achieved by the crusher.


The crusher hammer head we have already produced


Bi-metal crusher hammer head

1818 bi-metal crusher hammer

2014 bi-metal crusher hammer

Alloyed superior high manganese steel crusher hammer

Bi-metal crusher hammer head

Bi-metal crusher hammer head

Bi-metal crusher hammer head

high manganese steel hammer head

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


Grade
 Surface Hardness

Casting condition

Harded condition

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.

Bimetal compisite material

Feature:

This material adopt special technological process to make two material with different property integrate in the same time when they are liquid state.

The bonded area could reach 100% and the impact toughness of the bonded area can get more than 14J/cm2  ,the working part use high Cr casting iron and adopt directional solidification to make Cr7C3 which included in high Cr casting iron perpendicular distribute to the working surface .

The hardness could reach to HRC62-65,and the impact to toughness(AK) is above 30J/cm2 ,It can resist the cutting from AL2O3 and SiO2 perfectly show the high anti-friction property . the hammer handle with high toughness and perfect combined mechanical properties.the material have both high anti-friction and safety property and solve the contradiction between the hardness and toughness effectively ,make the spare parts fit the wicked working condition.

The lifetime of the hammer which made from bimetal composite material is 2-3 times than the lifetime of normal high Mn hammer .Specially suit for the big crusher hammer ,blow bar and liner of big mill .The effect will be prominent in the wicked condition .It is widely used in limestone ,cementclinker,iron,sandstone,gangue ,basalt and so on.

 Chemical component


Grade
Chemical component%
C Si Mn Cr Mo Ni S P
ZG38CrMnSiMoNiRe 0.35~0.45 0.4~0.8 0.4~1.0 0.5~2.0 0.20~0.80 0.3~2.0 ≤0.004 ≤0.004

 Mechanical Property


Grade
HRC
Surface Hardness HRC
Shock absorption energy
KN2/J(unnotched)
ZG38CrMnSiMoNiRe 50 25
High Manganese Steel

Feature

High manganese steel refers to high alloy steels containing more than 10% manganese. The biggest features of high-manganese steel are:

The greater external compressive stress or impact load, the more conducive to the formation of hardened layer, so the higher the wear resistance of the casting;

With the gradual wear of the hardened layer, new work hardened layers will continue to form under the influence of external compressive stress or impact loads. Therefore, it is suitable for making wearable spare parts that are subject to high impact load and wear for a long time, and is widely used in metallurgy, mining, building materials, railways, electric power, coal and other broken grinding equipment.

 Chemical component


Grade
Chemical component%
C Si Mn Cr S P
ZG120Mn13 1.05~1.35 0.3~0.9 11~14 - ≤0.06 ≤0.04
ZG120Mn13Cr2 1.05~1.35 0.3~0.9 11~14 1.5~2.5 ≤0.06 ≤0.04
ZG120Mn17Cr2 1.05~1.35 0.3~0.9 16~19 1.5~2.5 ≤0.06 ≤0.04
1:Allowed to add microscale V,Ti,B and Re etc.
2:We can produce the other grade high manganese steel  hammer according to customers’ requirments 。

 Mechanical Property


Grade
Stretch property Hardness
HB
yield strength ReH/Mpa tensile strength Rm/Mpa Elongation at cross section % Shock absorption energyKu2J
ZG120Mn13 - ≥685 ≥25 ≥118 ≤300
ZG120Mn13Cr2 ≥390 ≥735 ≥20 - ≤300
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


Allis-Chalmers Thyssenkrupp Mesto Nordberg Svedala Extec
Hazemag McCloskey Terex Sandvik 瑞典 Telsmith. 美国  

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Luoyang Zhili cooperated with Lafarge-holcim cement group in India

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