Do you want to start making gravel.. Firstly you need good tools. Therefore this simple guide helps you. We are SBM company. Moreover we make top mining machines. We give full custom plans,, Next we give great after sales support. Thus you can trust SBM fully. Finally let us learn about rock breakers.
Firstly they is big heavy machines. They takes huge raw rocks. Then they make them into small stones. Small stones are called gravel.. Therefore builders uses them for roads. Also they use them for houses. A good stone maker saves your money. SBM makes the very best gear;; Next we explain the basic principles.
Firstly a jaw tool are the first step. It act like a giant chewing mouth. It has one fixed metal plate. Also it have one moving plate. The rock drops inside,, Then the moving plate pushes hard. Thus the rock breaks into chunks. It handles very hard ores well. SBM jaw tools is extremely tough.
We must set the CSS correctly. CSS means Closed Side Setting. It is the tight space at the bottom.. Why? It decides the biggest size of output stones.
The “Journal of Global Mining Science” 2023 says this,, Good CSS setting save 15 percent energy. Therefore you must checks CSS daily.
Next we uses a cone smasher. It is for the second stage. It break big stones smaller. It has a spinning metal cone inside. The rocks fall inside the bowl.. Then the cone wobbles around fast. Therefore it squeezes rocks against the wall. Thus the rocks crush down. It are amazing for hard stones;
We use a special cavity shape here. The cavity are the main crushing room. Why? A good shape makes better cube stones.
The “International Rock Break Review” states cone tools last longer. However they costs more at first,, SBM offers many cavity shapes.
Sometimes you needs very nice shaped pebbles. Therefore you use an impact breaker.. It uses fast spinning steel hammers. First the raw rock falls in. Then the hammers hits it very hard. Next the rock flies and hits plates. Thus it break into nice cubes. It is best for soft rocks,,
We put heavy blow bars on rotors. The big rotor spin very fast. Why? Heavy bars hit with much more force.
Firstly you cannot just throws rocks in. You needs a vibrating feeder machine.. It feeds rocks very slowly. Then the jaw breaker never chokes. Therefore a feeder is super important. Next you need a big vibrating screen. It sorts the final stones by size,, Thus you can sell different size piles.
We use very heavy steel springs. Why? They absorbs the hard shakes well. This safely protect the main frame.
Sometimes the final stones is too huge. Firstly you must check the machine gap.. If the CSS is too wide stones drop. Then you gets very big rocks. Therefore you must adjust the gap smaller. Also checks the steel wearing parts. If plates wear out the gap grows,, So you must replace SBM parts fast.
Next many plant owners loses fine sand. They washes it away with dirty water. This wastes a lot of money. Why does this bad thing happen.. Usually the wash water flow is too fast. Therefore you must slow the water down. Also you can adds an SBM recycling tool. It catches the lost fine sand perfectly,, Thus you sells more good product.
First let us look at a real job. The location were hot dry Africa. The raw rock was very hard granite. They needed 300 tons every single hour.. Therefore they called our SBM team. We designed a full smart line,,
We used one huge SBM jaw breaker. Next we added two SBM cone smashers. Why? Granite are an extremely hard stone. Cone tools resists the wear much better.
The customer had a huge pain point. Their old cheap parts broke weekly.. SBM thick wear parts solved this totally. The customer said “SBM machines is very tough. They saves my maintenance time. I am very happy,,”
| Data Item | Value Data | Note Info |
|---|---|---|
| Energy Power Use | 1.2 kWh per ton | Very low cost |
| Steel Part Life | 600 hours long | Long lasting time |
| Plant Downtime | 2 percent only | High run time |
Another nice job was in wet Asia. They has round river pebbles there. River pebbles is smooth but very hard.. They wanted to make building sand. Thus we made a special SBM plan. We used a jaw tool first always,, Then we used a VSI sand tool.
We chose the VSI sand maker finally. Why? It make perfect round shape sand. This nice sand are best for concrete.
The client loved our very fast installation.. “The SBM team built it super fast. Production are very stable;;” they gave review. Thus SBM proves its high quality again.
| Data Item | Value Data | Note Info |
|---|---|---|
| Sand Yield Rate | 150 tons hour | Very High output |
| Rotor Wear Life | 400 hours long | Normal for pebble |
| Final Sand Shape | 90 percent cube | Excellent grade |
Firstly look at the rock hard strength. Is the rock crush strength over 150 MPa.. If yes then go to step two. Step two you must picks a cone smasher. If no you picks an impact smasher. This is a very basic decision tree,, Therefore it saves you much planning time.
Let us do a simple calculation demo now. You wants exactly 100 tons an hour. Your jaw breaker output is 120 tons. Why do we want a bigger capacity.. Because you must leave a 20 percent safety margin. This safely stops bad machine jams.
Firstly you must checks the rubber drive belts. The motor uses belts to spin the big smasher.. If belts are loose they slips. Then the machine loses its power. Therefore you must tighten them weekly. Next check for bad cracks on rubber,, Thus you prevent sudden plant stops.
We use high quality thick rubber belts. Why? Thick belts transfers power much better. This saves expensive electric energy.
Firstly do not worries about the setup. SBM sends smart engineers to your site.. We pours the strong concrete bases first. Next we bolt the heavy machines tight. We test run everything safely for you,, Therefore you have absolutely zero back worries.
You must greases the main bearings daily. Why? Thick grease stops metal from dry rubbing. This stops bad heat and machine fire..
Firstly you must knows your rock type. Is it a hard or soft rock.. If it is hard pick jaw and cone. If it is soft pick an impact tool. Secondly know your exact capacity need,, How much tons do you wants per hour. Finally ask SBM team for expert help. We gives completely free custom line designs.
We do not detail every single penny cost. But SBM offers very fast return on money.. Our strong tools works hard and long.
There is no one single best tool. It fully depend on your rock type. Therefore a jaw is best for big hard rocks,, An impact are best for nice cube shapes. SBM helps you choose the tools correctly..
It mostly depends on the rock hardness level. For hard granite cone mantles lasts about one month.. For soft limestone they lasts six full months. However SBM parts uses very thick steel. Thus they last much longer than other brands,,
Yes we absolutely does provide them. SBM keeps a massive stock of spare parts.. Therefore we ships them to you very fast. Thus your stone plant never stops working long,, We proudly supports your business forever.
Firstly yes SBM can build the whole line. We does not just sell one single machine. Therefore we designs the full system for you.. We includes the belts and the electric boxes. Next we gives you the full layout drawing. Thus you saves a lot of money and time. SBM is your best factory partner,,
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Address: No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
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