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Crushing & screeningCrushing and Screening Plant Basics for Quarries and Contractors
A plain-language introduction to crushing and screening: crushers, screens, stages and the questions to ask before choosing a plant.
What a crushing and screening plant does
A crushing and screening plant takes rock or demolition material and turns it into sized products such as aggregates, base material and sand. Crushers reduce the material, and screens separate it into the sizes you need.
The main stages
- Feeding: a feeder moves material into the first crusher at a steady rate.
- Primary crushing: breaks large rock into a smaller, manageable size.
- Secondary and tertiary crushing: refine the size and shape of the product.
- Screening: separates material into different sizes and returns oversize to the crusher.
Questions to answer before choosing a plant
- What is the material: hard rock, soft stone or recycled concrete?
- What final product sizes do your customers need?
- How much do you need to produce per hour and per day?
- Will the plant stay in one place or move between sites?
- What power supply and space are available?
Wear parts decide your running cost
In crushing, wear parts such as liners, jaw plates and screen media are used up continuously. Planning wear part supply, and checking wear regularly, keeps production steady and helps you avoid unplanned stops.
Get advice early
Crushing is a system, so the best results come from matching the crushers, screens and conveyors to your material and your product. Share your material, output and site details with your supplier early, and ask for a plan that covers installation, training and spare parts.
Product quality and consistency
Customers buy aggregates by size, shape and cleanliness. Consistent products come from steady feeding, correct crusher settings and screens in good condition. Worn screen media lets oversize material through, while overloading a crusher reduces product quality as well as output.
Keep records of the settings that give you the best product. When the plant changes feed material, those records help you get back to a good result faster.
Frequently asked questions
What is the difference between a crusher and a screen?
A crusher reduces the size of the material. A screen separates it into different sizes.
Do I need more than one crushing stage?
Often yes, if you need smaller or better-shaped products. The number of stages depends on your material and the products you want to sell.
How do I reduce wear part costs?
Choose the right wear parts for your material, inspect them often and replace them before they fail completely.
Tell us about your job and we will help match the right machine. Send an enquiry from the contact section at royoka.com or email info@royoka.com.
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This article is general guidance. Always follow the manufacturer's manual and local safety rules for your machine.