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kolkata impact crusher blow bars manufacturers

impact crusher blow bars, hammers material and manufacturer | quarrying & aggregates

impact crusher blow bars, hammers material and manufacturer | quarrying & aggregates

Different working conditions need to choose different types of blow bars, from high manganese steel, martensitic alloy steel to high-chromium iron. These types of blow bar can ensure that the impact crusher always maintains the best operating condition with the best cost performance.

High manganese steel has high impact resistance and excellent wear resistance under strong impact abrasive wear conditions. The high manganese steel hammer hardly breaks, so high manganese steel is suitable for primary crushing applications.

Martensitic alloy steel can achieve a good balance between impact resistance (toughness) and hardness, and is often used in secondary crushing applications that require better impact resistance and hardness, such as quarrying and construction waste recycling.

Compared with martensitic alloy steel, the brittleness (fragility) of high chromium iron determines that it is not suitable for crushing large or super large hard materials. Therefore, high-chromium iron blow bars are the most commonly used type in secondary crushing applications.

crusher blow bars material selection

crusher blow bars material selection

There are many kinds of material to cast crusher blow bars. Different working situations need different material blow bars. Based on rich experience, MGS Casting helps you to analysis the different materials for crusher blow bars.

This is mainly manganese steel. This alloy is used in primary crushers or crushers that have tramp iron in the feed. Manganese steels will be used whenever very high shock resistance or some elongation is needed. The blow bar life is not easily predictable and depends on many factors. Manganese crusher blow bars are commonly used primary crusher applications and provide high shock resistance and are available in both Mn14% and Mn18% material grades. They are well suited to applications where tramp iron is possible in the feed material. Manganese bars are often used as a safe choice, however, other materials available can offer significant life costs benefits. For identification purposes,manganese steel blow bars are painted black or red and marked with the respective material grade. Also, ask about our special high-performance material that is proven to outperform other grades of manganese blow bars.

Martensitic steel will be used whenever hardness and impact resistance are both needed, i.e. in all the applications where usage of white (chromium) irons can lead to breakage. Generally, martensitic steel has a higher lifetime than Mn steels in more abrasive applications when the feed size is below 900mm. It is used in primary and recycling applications. Martensitic steel blow bars are commonly used where the application requires the impact resistance manganese provides and the hardness and wear resistance of chrome irons. Commonly used in both quarrying and recycling, martensitic would normally be expected to outperform manganese steel in abrasive applications.

White irons are used when the shock level is rather low and the castings rather thick. Feed to the crusher must be well prepared as far as top size and must be free of tramp iron. Because of the brittle nature of this alloy, tramp iron will cause catastrophic failure of the blow bars. This material is used in secondary, tertiary and asphalt recycle applications where there is no tramp iron. Cast white chromium iron is widely used in classic horizontal impact crushers and is available in medium 20% and high 26% chromium content materials. White irons can provide high performance in the right application providing NO tramp iron is present in the feed material. The brittle nature of chrome irons means significant damage can occur if tramp iron or large oversize material is fed into the crusher.

This is a composition blow bar consisting of hard ceramic particles on the wear surface in a chromium iron matrix. This composite has the effect of combining the very hard surface of ceramic with the useful mechanical properties of chromium iron. These (chromium/ceramic) blow bars can have two to four times the life of standard mono-alloy blow bars. Chrome Iron with ceramic is a premium composite metallic matrix iron with hard ceramic alloy inserts on the wear surface. The hard alloy ceramics combined with either medium chrome or high chrome iron matrix provides a significant working life advantage over standard chrome iron bars. Whilst this material can be very successful in secondary applications, it should not be used for primary crushing or very hard and abrasive applications.

Martensitic alloy steel with ceramic is a premium composite metallic matrix steel with hard ceramic alloy inserts on the wear surface. The hard alloy ceramics combined with either martensitic steel matrix provides a significant working life advantage over standard martensitic steel bars. This material is commonly used in recycling industries and primary crushing in quarries. Certain applications are unsuitable for this material, including limestone crushing and slag recycling. Thisblow bar consisting of hard ceramic particles on the wear surface in a new martensitic steel matrix. Ceramic inlay is deeper and wider than standard Xwin and will provide higher lifetime. These are high-performance blow bars for recycling applications.

MGS Casting has succeeded to develop a new material for crusher blow bars users. Titanium carbide bars insert the working face of blow bars to expand the blow bars span life. Compare with normal chromium steel or martensitic steel, its span life can more than 3-5 times. However, the price for TIC insert blow bars just a little expensive than others, so it is the most competitive material for crusher blow bars.

All brand names, model names or marks are owned by their respective manufacturers. MGS Casting has no affiliation with the OEM. These terms are used for identification purposes only and are not intended to indicate affiliation with or approval by the OEM. All parts are manufactured by, for and warranted by MGS Casting and are not manufactured by, purchased from or warranted by the OEM.

hsi blow bars and wear liners - crusher wear parts

hsi blow bars and wear liners - crusher wear parts

CWP produces chrome wear parts and blow bars for Horizontal Shaft Impactors including Kleeman, Hazemag, Inertia, Universal, KPI/JCI, Eagle, Trio, Pegson, Pioneer, Lippmann, Metso, Telsmith, Cedarapids, Boehringer, Extec, Gator, Hartl, Metso, Svedala, Sandvik and many others.HSI wear parts are available in Manganese, Low Chrome, Medium Chrome, High Chrome, and T-alloy. CWP offers custom manganese blow bar options such as carbide impregnation and added Niobium alloys to increase wear life in specific applications.CWPs proprietary T-alloy product can substantially increase the wear life of blow bars in specific applications that are currently using medium or high chrome products.We can also refurbish your worn out rotor and bring it back to original specifications.

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