News
How to select blow bar material?
We’d like to talk about how to select right blow bars for your crushing applications.
As we know,the application area of impact crushers range from conventional natural stone processing through the recycling of construction waste.
Therefore,increasing the blow bar service time and reducing the operation costs are becoming our main focus.
The economical operation is not only ensured by the blow bar purchase price but mainly by choosing the right blow bar for a particular application.
Then,how to choose the right blow bar?
Usually the wear during crushing process depends on numerous factors which are often hard to analyse.
We’d like to talk with you some typical ones: 1) Selection of the crushing parameters
2) Material of the blow bars
In practice,there are 5 kind of most popular materials in the market, which are manganese steel,chrome,martensitic steel,chrome with ceramic and martensitic with ceramic blow bars.
1. Manganese steel
it can thereby increase to appr. 500 HV(50HRC). It's widely used in jaw and cone crusher,like jaw plate,mantle and convave . In the impact crusher,it's only recommended to break less abrasive and very large feed material, like limestone.
2. Martensitic steel
Thus,with regard to hardness and toughness,martensitic steel lie between manganese and chrome. They are used in primary and recycling applications,they can accommodate large feed size and tolerate steel in feed.Like building rubble and concrete,blasted limestone.
3. Chrome steel
we have special heat treatment.Thus ,it has high wear resistance,its size needs controlled due to risk of breakages,and it will not tolerate steel in feed.It's used in secondary ,tertiary & asphalt applications (as long as no unbreakable in feed ). and used for abrasive applications in natural stones.
4. Marensitic with ceramic insert
matrix running through the blow bar for extra wear life,our service time can be 2.5 times longer than that of martensitic steel. It's very wear-resistant,hence lower cost per tonne. Mostly used in primary & recycling applications,it will tolerate steel in feed.
5. Chrome with ceramic
It's used for crushing very hard natural stones,such as granite,rocks,river stone and asphalt. Feed size needs controlled due to risk of breakages. It will not tolerate steel in feed.
Our blow bar is 3 times longer than that of chrome steel blow bars and at least 20% more wear-resistant than European blow bars of the same material.
The key point is that we can customize material based on your particular application to win longer lifetime!
If you are looking for a higher quality and reliable supplier,we, Echo Machinery, can be your best choice!
How to select blow bar material?
https://www.youtube.com/watch?v=M0eOossHd7E
All brand names,model names or marks are owned by their respective manufacturers.Echo Machinery has no
affiliation with the original equipment manufacturer.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 Echo Machinery and are not manufactured by,purchased from or warranted by the original equipment manufacturer.
|