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Project BackgroundA fixed crushing plant in West Java, Indonesia, processes limestone from a local quarry. The owner runs one stationary line rated at 300 tons per hour, making four sizes - 0-5, 5-10, 10-20 and 20-30 mm - for nearby cement plants and road construction. The feed is quarried limestone: Mohs 3-4, medium-hard, low-abrasion, high in CaCO3, with a little surface mud. The line follows the classic limestone circuit: feed - pre-screen - jaw - impact - screen - closed-circuit return. Belo...
Field ExperienceLast month at Jakarta's main port, three tracked mobile plants from China were being loaded onto a barge. A cement plant supervisor nearby said their third line goes online this year and they are short on aggregate. It is not a one-off — limestone crushing equipment procurement across Southeast Asia has clearly heated up over the past two years. The demand did not appear from nowhere; here is the chain behind it.Market overview: why limestone became the region's hard currencyLime...
Expert OpinionLimestone runs Mohs 3-4, medium-hard and low-abrasive, so both machines handle it - but they sit at different spots in the line. The jaw crusher owns primary crushing: it eats 500-1000 mm feed by squeeze, shrugs off hard rock, stays cheap and easy to maintain, and pushes high tonnage. The impact crusher owns secondary shaping: it throws material against impact plates, so product comes out cubical with tight gradation. Trade-off - blow bars wear faster (though far better on limeston...
Executive SummaryBefore you start any limestone plant, the first job isn't switching on the crushers — it's figuring out what your rock actually behaves like. We've walked onto sites where the spec sheet says "limestone" but half the pit is mud and the other half is greywacke, and the standard flow sheet just chokes on it. So let's pin down the material first, then build up primary, secondary, tertiary and screening stage by stage, with the numbers you actually tune in the field.1. What kind of ...
Quick AnswerLimestone runs Mohs 3-4, medium-hard and low-abrasion, so it behaves nothing like river pebble. You can run impact or hammer crushers here without burning through wear parts - that is the big difference. Small jobs save money with a heavy hammer crusher that does primary and secondary in one pass. Bigger operations go jaw primary plus impact secondary for cube shape, then add a cone in closed circuit when gradation has to be tight. Power source, feed size, and tonnage decide the rest...
Limestone is a common raw material for machine-made sand and gravel. The hardness is generally 3 on Moh's hardness, which is medium hardness. It is widely used in construction, industry, metallurgy and other fields. The commonly used crushing equipment for limestone crushing production lines are hammer crusher, cone crusher, and impact crusher, etc. Usually in order to improve the output and quality of the limestone sand, the production line also needs to be equipped with conveying equipment, co...
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