I. Granite characteristics and crushing difficulties
Granite is an igneous rock with high hardness (Mohs hardness 6-7) and high compressive strength (200-350MPa), and its main components are quartz, feldspar and mica. Its characteristics include:
High wear resistance: It causes great wear on crushing equipment, and equipment made of high-strength wear-resistant materials must be selected.
High crushing energy consumption: Traditional equipment is prone to low efficiency and high energy consumption, and needs to be equipped with laminated crushing technology to optimize energy consumption.
II. Liming Heavy Industry Crusher Recommendation (Special for Granite)
1. Jaw Crusher (Preferred for Coarse Crushing)
Recommended models: PE600×900, PE1200×1500
Capacity: 90-180t/h (PE600×900) to 400-800t/h (PE1200×1500).
Discharge range: 100-300mm (adjustable discharge port)
Advantages: deep cavity design + high manganese steel jaw plate, strong impact resistance; centralized lubrication system reduces maintenance costs.
2. Cone crusher (high-efficiency solution for medium and fine crushing)
Recommended models: HPT300, HPT500
Capacity: 175-320t/h (HPT300) to 405-790t/h (HPT500).
Discharge range: 3-70mm (adjustable cavity type)
Advantages: hydraulic lamination crushing technology, reducing needle-like content; intelligent lubrication system extends bearing life.
3. Impact crusher (particle shape optimization)
Recommended models: PF-1320, PFW1318
Capacity: 160-350t/h (PF-1320) to 240-400t/h (PFW1318)1013.
Discharge range: 0-40mm (cubic proportion ≥ 90%)
Advantages: heavy rotor + high chrome hammer, suitable for hard rock impact; keyless connection design is easy to maintain.
4. Impact crusher (mechanical sand preparation)
Recommended models: 5X1145, 5X9532
Capacity: 150-300t/h (5X1145)15.
Discharge range: 0-5mm (fineness modulus adjustable)
Advantages: dual pump oil supply system ensures continuous sand making; the peripheral guard plate can be turned around after partial wear.
IV. Application scenarios of mobile crushing and screening machine
Applicable occasions:
Mining: rapid deployment in remote mining areas to reduce material transportation costs.
Building demolition: on-site crushing of construction waste granite to achieve resource utilization.
Investment return ratio:
Cost saving: save the capital construction cost of fixed production lines (about 30% reduction in initial investment).
Flexibility: a single device can complete the entire process of "feeding-crushing-screening", and the transfer time is less than 1 hour.
V. Purchase precautions
Material property matching: Data such as granite hardness and quartz content are required to customize the material of wear-resistant parts.
Capacity verification: Manufacturers are required to provide actual operating data of similar granite project cases.
After-sales service: Confirm whether installation and commissioning, and regular inspection of wear-resistant parts are included (Liming Heavy Industry provides 24-hour response, welcome to consult online).
