As the core equipment in mining, building demolition and road construction, the choice of stone crusher directly affects the project efficiency and cost control. Faced with a wide range of stone crusher models on the market, how to make a wise choice? This article will analyze the five key factors for purchasing a stone crusher in detail and provide practical purchase suggestions.
1. Main types of stone crushers and applicable scenarios
1.1 Jaw crusher (preferred for coarse crushing)
• Working principle: material extrusion and crushing are achieved through the periodic movement of the movable jaw and the static jaw
• Advantages and characteristics: simple structure, easy maintenance, large processing capacity
• Applicable materials: granite, basalt, etc. with high hardness
• Output range: 50-1500 tons/hour
• Typical applications: primary crushing in mines, large-scale construction waste treatment
1.2 Impact crusher (preferred for medium and fine crushing)
• Crushing principle: using high-speed rotating rotor to impact materials
• Outstanding advantages: good finished product particle shape, less over-crushing
• Applicable scenarios: medium-hard limestone, concrete regeneration
• Output comparison: about 15-20% higher than cone crusher
1.3 Cone crusher (hard rock expert)
• Technical features: laminated crushing principle, hydraulic adjustment of discharge port
• Core advantages: long life of wear-resistant parts and low operating cost
• Special models: single-cylinder/multi-cylinder hydraulic cone crusher
• Energy consumption performance: more than 30% energy saving compared to jaw crusher
1.4 Mobile crushing station (flexible choice)
• Configuration scheme: tire type/crawler type, can be matched with different hosts
• Outstanding features: convenient transfer, saving material transportation costs
• Applicable working conditions: demolition projects, short-term projects
2. Five key parameters for selecting a crusher
2.1 Production demand assessment
Calculation formula: daily processing capacity = total project volume ÷ number of working days
Safety factor: It is recommended to select equipment with 20% surplus capacity
Case description: A sand and gravel plant needs 100,000 tons per month, and chooses a 150-ton model per hour
2.2 Feed and discharge specifications
Feed size: The maximum allowable value should be greater than the maximum diameter of the material
Discharge control: Pay attention to the matching of each level when multi-stage crushing
Particle size distribution: Check the proportion of over-coarse/over-fine particles in the finished product
2.3 Power and energy consumption analysis
Motor configuration: 55-400kW common power range
Energy consumption comparison:
| Model | Ton power consumption (kWh) |
| Jaw crusher | 0.8-1.2 |
| Cone crusher | 0.6-0.9 |
| Impact crusher | 1.0-1.5 |
2.4 Wear-resistant parts life assessment
Core components: jaw plate, plate hammer, mortar wall
Material selection: high manganese steel, composite alloy comparison
Replacement cycle: 300-800 hours under normal working conditions
2.5 Environmental performance considerations
Noise reduction measures: soundproof cover, shock-absorbing foundation
Dust removal solution: dry mist/bag dust removal system
Latest standard: GB 16297-2022 emission requirements
3. FAQ
Q: How to configure a 100-ton per hour gravel production line?
A: Typical solution: vibrating feeder + PE600×900 jaw crusher + PF1214 impact crusher + 3YK1860 vibrating screen
Q: Which crusher should be selected for wet materials?
A: It is recommended to use a counter-crusher with heating function or a model with adjustable grates
Q: How to reduce dust in stone crushing production?
A: Three-level control solution: closed conveying + spray system + pulse dust collector
Q: What type of stone crusher is suitable for a small stone plant?
A: It is recommended to use a mobile crushing station or a jaw crusher + counter-crusher combination, with an investment of about 500,000 to 800,000 yuan
Choosing a stone crusher requires comprehensive consideration of multiple factors such as material properties, production requirements, and investment budget. It is recommended to collect this guide as a reference for purchase, and you are also welcome to leave your specific working conditions in the comment area, and we will provide you with personalized suggestions. Click to follow to get more knowledge on mining machinery purchase!
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