The crushing and sand-making production line serves as the core system for aggregate production, requiring equipment configuration that balances raw material characteristics, production capacity requirements, environmental standards, and economic viability. The following analysis explores four dimensions: core equipment, mobile solutions, typical configurations, and material compatibility, supplemented by key technical parameters and case data.
I. Core Crushing Equipment: Graded Crushing and Efficiency Optimization
The crushing system serves as the “heart” of the sand production line. Differentiated equipment combinations must be selected based on material hardness to maximize energy efficiency.
1. Jaw Crusher: The “All-Rounder” for Primary Crushing
Technical Parameters:
Model: PE-1500×1800 (Feed Opening 1500×1800mm)
Processing Capacity: 1200-1500 t/h (for hard rocks like granite)
Discharge Size: ≤350 mm (adjustable)
Motor Power: 280-315 kW
Core Advantages:
Wide Compressive Strength Adaptability: Processes rocks ≤320 MPa (e.g., basalt, quartzite)
High Structural Reliability: Features thickened manganese steel liners with wear parts lasting up to 6000 hours
Optimal Energy Control: Power consumption per unit output is only 0.8 kW·h/t
2. Medium & Fine Crushing Equipment: The “Hard vs. Soft” Debate Between Cone Crushers and Impact Crushers
(1) Cone Crusher: The “Efficiency Benchmark” for Hard Rock Crushing
Recommended Model: HPT800 Multi-Cylinder Hydraulic Cone Crusher
Technical Parameters:
Processing Capacity: 600-900 t/h (Feed Size ≤300 mm, Discharge Size ≤50 mm)
Crushing Ratio: 1:10–1:15
Layer crushing principle, needle/flake content <8%
Technical Highlights:
Intelligent Control System: Hydraulic sensors dynamically adjust discharge opening to prevent overload
Extended Wear Part Lifespan: Manganese steel liners last up to 12,000 hours—3x longer than spring cone crushers
Low Energy Consumption: Power consumption per ton of output is 1.2 kW·h/t, 20% lower than impact crushers
Applications:
Secondary crushing of metal ores (iron ore, copper ore)
Production of high-strength concrete aggregates (C60 and above)
(2) Impact Crusher: The “Shape Expert” for Soft Rock Crushing
Recommended Model: PFW1415Ⅱ Impact Crusher
Technical Parameters:
Processing Capacity: 350-500 t/h (Feed Size ≤500 mm, Discharge Size ≤30 mm)
Impact crushing principle, cubic particle proportion >92%
Motor Power: 250-315 kW
Technical Highlights:
Particle Shape Optimization: Adjustable hammer gap controls output size and gradation
Overload Protection: Spring-loaded safety device automatically retreats upon encountering foreign objects like iron blocks
Easy Maintenance: Side door access design enables hammer replacement in just 30 minutes
Applications:
Sand production from limestone, sandstone, and other soft rocks
Recycled aggregate production from construction waste
II. Sand Making and Auxiliary Equipment: Grain Shape Control and Quality Enhancement
The sand making system must balance output and grain shape while controlling finished product quality through screening and washing.
1. Sand Maker: The “Grain Shape Revolution” in Impact Crushing
Recommended Model: VSI6X1263 Vertical Shaft Impact Sand Maker
Technical Parameters:
Feed Size: ≤55mm
Processing Capacity: 200-350 t/h
Finished Sand Fineness Modulus: Adjustable 2.2-3.0
Stone Powder Content Control Range: 5-15%
Technical Highlights:
Dual-Chamber Design: “Stone-on-Stone” chamber optimizes particle shape (cubic particles >90%); “Stone-on-Iron” chamber boosts output (20% capacity increase)
Hydraulic Cover Opening System: Maintenance time reduced from 2 hours to 15 minutes
Variable Frequency Speed Control: Dynamically adjusts rotational speed (1200-1800 r/min) based on raw material hardness, reducing energy consumption by 10%
2. Screening and Washing Equipment: Gradation Control and Environmental Upgrades
(1) Vibrating Screen: Balancing Grading Precision and Efficiency
Recommended Model: 3YK3070 Circular Vibrating Screen
Technical Parameters:
Screen Mesh Specifications: Three layers (5mm, 10mm, 20mm)
Processing Capacity: 400-600 t/h
Screening Efficiency: >96%
Vibration Intensity: 7-12 mm (adjustable)
Technical Highlights:
Probability Screening Principle: Ensures precision at high throughput with screen life up to 8000 hours
Sealed Design: Minimizes dust leakage, compliant with national environmental standards
(2) Bucket Wheel Sand Washer: Dual Assurance for Cleaning Efficiency and Fine Sand Recovery
Recommended Model: XS3500 Bucket Wheel Sand Washer
Technical Parameters:
Processing Capacity: 180-220 t/h
Cleaning Efficiency: >98%
Water Consumption: 0.6 m³/t (50% water savings compared to spiral sand washers)
Supporting Equipment:
Fine Sand Recovery Unit: Recovers 0.075-0.3 mm fine sand with 85-90% recovery rate
III. Mobile Production Lines: Flexible Operation & Cost Optimization
Mobile crushing stations feature integrated design for “plug-and-play” operation, ideal for dispersed operations or temporary projects.
1. Diesel-powered mobile stations: “Rapid deployment experts” requiring no foundation design
Core Configuration:
Feeder: ZSW600×150 vibrating feeder (capacity 800-1000 t/h)
Crusher: PE-900×1200 jaw crusher + PF1315 impact crusher (200-300 t/h)
Screener: 2YK2460 circular vibrating screen (300-400 t/h)
Power System: Cummins QSX15 diesel engine (503 kW)
Technical Highlights:
Short relocation time: Only 2 hours from transport to production (traditional fixed lines require 7 days)
High fuel efficiency: Fuel consumption of just 0.3L/ton per unit output, reducing consumption by 40% compared to fixed lines
Strong adaptability: Stable operation in environments ranging from -30°C to +50°C
