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Blow Bar

IMPACTOR BLOW Bars: Key spare part in horizontal shaft impactor HSI

What Are Blow Bars?

Impactor Blow bar is mainly composed of high-chromium steel. and specially adding rare metals such as mestal vanadium ,tungsten,moly etc , to improve blow bar wear resistance, hardness, and toughness.For Saikuang casting premium blow bar .we make special heat treatment process to have better mechanical performance:
(1) Premium performance in Blow bar Hardness -62HRC ;
(2) Premium Blow bar uniform hardness
(3) Premium performace in hardenability and toughness.

Understanding Blow Bars: Key spar parts in horizontal shaft impactor HSI

Blow bars are specifically designed for using within horizontal shaft impactor HSI. They serve a critical function by reducing material size through repeated striking during the crushing operation.

The blow bar is an integral part of the rotor assembly in horizontal impactors. When integrated into this system, these blow bars are subjected to intense rotational forces at extremely high speeds. This action causes the entire rotor to spin rapidly, repeatedly striking and fragmenting materials until they reach an appropriate size for release through the crusher chamber.

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Advantage For Our Blow bar

① Thousands type  of  drawingsr and mold  for  OEM  impact crusher blow bar & liners;

② 14 years of experiences for  blow bar

③ We produce more wear-resistant products;

④ More  material choose for Blow  Bar

⑤Premium blow bar  with competitive price;

⑥ More professional services and suggestions.

Genuine Alternative Spare Parts
Impact Crusher Blow Bars Made by SAIKUANG Casting

SAIKUANG Casting ,14 years of experiences with European partner , can offers different designs and manufactures various solutions of blow bar for an extensive range of OEM horizontal impact crusher brands including: Hazemag, Mesto, Kleemann, Rockster, Rubble Master, Powerscreen, Striker, Keestrack, McClosky, Eagle, Tesab, Finlay ,ARM, SBM LIMING, ZENITH and others.

SAIKUANG Casting “Genuine Alternative” blow bars are designed to extend wear life, provide a perfect interchangeable fitting for your impactor, and increase production rates while decreasing costs-per-ton.

Metallurgy of the Blow Bars

SAIKUANG Casting impact crusher blow bars are available in a variety of metallurgies to accomodate your unique crushing needs. The range of metallurgies includes Manganese, Low Chrome, Medium Chrome, High Chrome, Martensitic and Composite Ceramic.

Austenitic Manganese steel or Mn steel blow bar

After being subjected to a strong impact,blow bar hardness can be increased from 230HBW to 55-60HRC

Impact toughness  can reach 30-35J/cm2; it has  extremely strong shock resistance and hardness.  widely used in primary impactor crushing applications.

this type  blow bar performs exceptionally well under high impact loads and high extrusion stresse,as it can have work-hard performance .
However, if  feed material is highly abrasive, the hardening effect will be negligible. In such cases, In this case other wear materials will offer better results. Ask us for advice.

Material Support : ASTM A128 Gr A & B2 & B3, BS 3100 Gr BW10, SABS 407
ASTM A128C
ZGMn13Cr2
ZGMn18Cr2
ZGMn20Cr3;ZGMN22CR3
Chrome steel Blow bar

this type had thrree types according to Different Chrome contents , to be low chrome alloy steel;Mid Chrome steel , and High alloy steel blow bar

Thess blow bar hardness can be from 50 to 64HRC with Different heat treatment methods; The particle shape for feed stone produced by blow bar is highly suitable for use on highways and railways.

Now popular chrome blow bar brand have German Hazemag 1010, 1313, 1515, Mesto LT 1110, 1213, 1315; SBM LIMING CI5X series: CI5X1110, CI5X1213, Cl5X1315, CI5X1520, CI5X1313, C5X1415, CI5X1620, C15X2023; PFW Series: 1214Ⅱ, 1315Ⅱ, 1318Ⅱ, 1415Ⅱ, 1214Ⅲ, 1315Ⅲ, 1318Ⅲ, 1415Ⅲ;

Chrome steel bars are more popular amongst our clients, especially in the Middle East. Chrome is used in manufacturing products that can withstand highly abrasive crushing processes. Because Of their splintery texture, they are best at fracturing more enormous rocks. They can also aid in shredding other coarse materials smaller in feed size. We offer all kinds of graded chrome bars to match your product needs.

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High Chrome Casting Material Chemical Composition
Code Elem Cr C Na Cu Mn Si Na P HRC
KmTBCr4Mo 3.5-4.5 2.5-3.5 / / 0.5-1.0 0.5-1.0 / ≤0.15 ≥55
KmTBCr9Ni5Si2 8.0-1.0 2.5-3.6 4.5-6.5 4.5-6.5 0.3-0.8 1.5-2.2 4.5-6.5 / ≥58
KmTBCr15Mo 13-18 2.8-3.5 0-1.0 0-1.0 0.5-1.0 ≤1.0 0-1.0 ≤0.16 ≥58
KmTBCr20Mo 18-23 2.0-3.3 ≤2.5 ≤1.2 ≤2.0 ≤1.2 ≤2.5 ≤0.16 ≥60
KmTBCr26 23-30 2.3-3.3 ≤2.5 ≤2.0 ≤1.0 ≤1.2 ≤2.5 ≤0.16 ≥60
MARTENSITIC STEEL

Martensite is a completely carbon-saturated type of iron that is made by quick cooling-off. It is only in the subsequent heat treatment that carbon is removed from the martensite, which improves the strength and wear properties. The hardness of this steel ranges between 44 to 57 HRC and the impact strength between 100 and 300 J/cm².

Thus, with regard to hardness and toughness, martensitic steels lie between manganese steel and chrome steel. They are used if the impact load is too little to harden the manganese steel, and/ or good wear resistance is required along with good impact stress resistance.

METAL MATRIX WITH CERAMIC COMPOSITES

Metal Matrix Composites, combine the high resistance of the metal matrix with extremely hard ceramics. Porous preforms made of ceramic particles are produced in the process. The metallic molten mass penetrates into the porous ceramic network. The experience and knowledge are particular to the casting process in which two different materials – steel with a thichness of 7.85 g/cm³ and ceramic with a thickness of 1-3 g/cm³ – are combined and there is a thorought infiltration.

This combination makes the blow bars especially wear-resistance but at the same time very impact-resistant. WIth blow bars made of composites from the field of ceramics, a service life that is three to five times as long as that of martensitic steel can be achieved.