Top 10 Questions to Ask When Selecting a Crusher
Selecting a crusher for your application is not a decision that should be taken lightly. There are a lot of important things to consider when planning to replace your old crusher or to start up a new site.
This is a list of the top 10 questions you need to ask when selecting the proper crusher for your application:
- Will it produce the desired output size and shape at the required capacity?
Obviously, if the machine can’t meet your basic requirements, it’s a bad investment. We recommend you set up a test to see how different machines handle your feed material and what the final product looks like.
- Will it accept the largest input size expected?
It’s important to have a good idea of the makeup of your feed material when selecting a crusher. If the crusher doesn’t accept the largest chunk, it will block the flow of the feed or plug the machine.
- Can it pass uncrushable debris without damage?
If you know your feed material will include a lot of tramp metals or uncrushable materials, it is important to choose a crusher that has safeguards in place to protect its key components from wearing or breaking. Crushers such as Gundlach Roll Crushers with the optional Nitroil® System or Pennsylvania Crusher brand Bradford Breakers are among the better crushers at handling tramp materials.
- How much supervision of the unit is necessary?
You want a reliable machine that requires little to no supervision.
- What is the crusher’s power demand per ton per hour of finished product?
The lower the power demand, the lower your costs.
- What is the suggested maintenance schedule like?
No matter which crusher you choose, you will eventually need to perform regularly scheduled maintenance, such as adding grease and cleaning tramp iron pockets, to keep it running smoothly and at its optimum level. Make sure the maintenance schedule is one your plant is comfortable with.
- Does it have easy access to internal parts?
When it comes time to replace your hammers or screen grates on your crusher, it’s important to minimize downtime as much as possible. Therefore, you want a crusher that can offer easy access to its internal parts, rather than requiring you to take the frame and other sections apart for access.
- Is there ready availability of replacement parts, and is the cost for those parts acceptable?
Consider the parts that are most likely to break or wear down over time and the costs associated with that. If replacement parts aren’t available, you’ll be losing money in lost production, in addition to the cost of the replacement parts. Even if the parts are readily available, they need to fit within your budget.
- How does the initial cost of the machine compare with its long-term operating costs?
Purchasing a crusher is an investment. Many run for decades before they’re shut down. If you find the initial cost is high, determine whether the estimated production over time is high enough and if the cost of maintenance, replacement parts and power to run the machine are low enough to offset those costs. Similarly, if you make a smaller initial investment in a crusher, determine whether the added costs of maintenance, replacement parts and power to run the machine over time will make it a bad investment.
- Does it offer dependable and prolonged service?
Crushers should provide an end product with a consistent size and shape, and they should have a history of lasting for many years with only regularly scheduled maintenance and parts replacements.