The life of a crusher blow bar depends on several factors, including the type of material, the size of the rotor, and the target reduction ratios. Over time, the blow bar will inevitably wear out and break, so it’s critical to make adjustments to maximize productivity. In addition to ensuring the correct bar size and material composition, you’ll also want to ensure that the bolts are properly tightened. Using low-quality bolts can damage the blow bar, and ensuring they’re tightened will ensure that it stays in place.
Impact crusher blow bars are one of the wear items of horizontal shaft impact crushers. These bars strike the material entering the crushing chamber, fracturing it into smaller fragments. In addition, they can be reused during subsequent crushing operations. To maximize the life of impact crusher blow bars, they must be maintained and replaced properly. Proper care will also ensure that they perform at optimal levels. Aside from this, a blow bar should be replaced every six to seven months or as soon as the machine has reached its maximum wear life.
When considering replacement options, you should also consider the temperature of the material that’s being crushed. Too cold or too hot material will shorten the life of the blow bar, while too cold or too fast will lead to increased wear. Another factor that affects the lifespan of blow bars is the way the machine is operated. When it’s running at high speed, the blow bar is more likely to wear out prematurely, while operating at low speeds will extend its lifespan.
If the blow bar is breaking frequently, you’ll want to ensure that it’s straight and not too loose on the rotor. If the bar is not aligned correctly, it can break or cause other problems, such as a faulty impact crusher. Another problem is a badly machined blow bar. It may be too large, or too small. Whatever the case, your impact crusher will need to address the issue as soon as possible.
The chrome content of the blow bar also affects its fracturing susceptibility. Higher chrome blow bars are more likely to break reclaimed materials, while lower chrome blow bars can withstand heavy metal contamination. The amount of chrome in the wear plate of a crusher blow bar is one of the most important components determining its lifespan. While both factors contribute to the life of the blow bar, they should be checked prior to use to avoid damaging the environment and your budget.
What is the best type of impact crusher blow bar for your application? Blow bar wear is highly dependent on the feed size, the type of hammer, and the material being crushed. High-chrome blow bars are recommended for rock crushing and should only be used with smaller feed sizes. Ensure that the feed materials are free of tramp metal as tramp metal can cause the blow bar to break. While a high-chrome blow bar may be more durable than its low-chrome counterpart, it will eventually wear out and need replacement.
Which factors effort crusher blow bars save time? These factors are all important, but a little research can go a long way in choosing the best crusher blow bars. You can also make use of a metal-matrix composite, which has martensitic steel and white iron in it. Both of these alloys improve abrasion resistance. This makes it ideal for primary crushing applications. You can also use Magotteaux Cement/Aggregates Blow Bars One Martensitic Steel. These materials are especially useful when the crusher is working in high-abrasive environments.
The life of your crushing plant depends on the type of feed material and maintenance schedules. Choosing the right blow bar is critical for long-term operation, so the best material choice is Mill Liners Foundry one with a higher MOH (micro-meters per square inches).
If you’re crushing limestone or concrete, a high-chrome blow bar is recommended for your project. However, if you’re crushing limestone or rebar, a medium-chrome bar may be the best option. However, they’re not recommended for crushing coarse-grained materials like asphalt. Medium-chrome bars have higher wear resistance and longer life than high-chrome blow bars.
