Huashengming Company's primary crusher and secondary crusher The primary crusher, centered around the jaw crusher, specializes in coarse crushing of large hard rock blocks.
The secondary crusher, featuring the dual-stage crusher (the wet material specialist) and the double-roll crusher (the particle size master), achieves medium and fine crushing with precise sand production:
1. Primary Crusher (Coarse Crushing Equipment)
The primary crusher is primarily used to process large raw material chunks (feed size ≤1500mm), performing initial crushing to prepare for subsequent processing.
Core Models and Technical Features
Jaw Crusher (Main Model):
Working Principle: Crushes materials through the reciprocating squeezing motion of the moving jaw and fixed jaw. Features a simple structure and low maintenance costs.
Model and Parameters:
| Model | Processing Capacity (t/h) | Maximum Feed Size (mm) | Discharge Size (mm) | Applications |
| PE-150×250 | 1.2–3.5 | 125 | 10–40 | Laboratory or micro quarry |
| PE-400×600 | 16–60 | 340 | 40–100 | Medium-Sized Sand and Gravel Aggregate Production Line |
| PE-1200×1500 | 150–300 | 1020 | 150–300 | Coarse Crushing of Hard Rock in Large Open-Pit Mines |
Advantages: High-manganese steel jaw plate lifespan >2 years, supports mobile integration, compressive strength ≤320MPa.
Heavy Hammer Crusher:
Single-stage crushing of large blocks (feed size ≤1200mm), output ≤60mm, streamlined process (e.g., DLPC1012 model with hourly output 100–130 tons).
Applications
Primary crushing of large hard rock: granite, basalt, etc. (feed size ≤1020mm).
Cost-effective solutions: Small sites opt for PE-150×250 (from ￥8,800), large sites choose PE-1200×1500 (300 t/h capacity).
2. Secondary Crusher (Medium-Fine Crushing Equipment)
The secondary crusher further refines materials after primary crushing, offering more precise particle size control. It is suitable for sand production, wet material processing, and similar applications.
Core Models and Technical Features
Double stage crusher (Screenless Design):
Working Principle: Dual-rotor serial crushing (upper stage coarse crushing → lower stage fine crushing). Screenless structure prevents wet material blockage, supporting moisture content ≤15%.
Model & Parameters:
| Model | Processing Capacity (t/h) | Discharge Size (mm) | Motor Power (kW) | Applications |
| 600×600 | 20–30 | ≤3 | 22+22 | Fine crushing of coal gangue and construction waste |
| 800×600 | 35–55 | ≤3 | 45+55 | Tailings Resource Recovery, Wet and Sticky Materials |
| 1600×1400 | 120–180 | ≤3 | 160+200 | Large-scale Solid Waste Treatment Center |
Advantages:
No screen bottom prevents clogging, enabling continuous operation during rainy weather;
Output particle size ≤3mm (80% ≤2mm), suitable for recycled aggregate production.
Double Roll Crusher (Precise Size Control):
Working Principle: Dual roll compression + shearing, hydraulic/spring-adjustable roll gap (1–50mm), accuracy ±0.1mm.
Model & Parameters:
| Model | Processing Capacity (t/h) | Discharge Size (mm) |
| 2PGT400×250 | 2–10 | 1–3 |
| 2PGY1500×1000 | 150–400 | 5–40 |
Advantages:
Triple-layer high-chromium alloy roll skin, lifespan >2 years (processing capacity >30,000 tons);
AI hydraulic control, energy consumption as low as 0.8kWh/ton.
Double-Tooth Roller Crusher (for wet sticky materials):
Anti-clogging tooth-patterned rollers support materials with moisture content ≤15% (e.g., muddy gold ore), processing 7–300 tons per hour.
Application Scenarios
Highly wet sticky materials: Two-stage crusher (e.g., 800×600 model, 0% clogging rate);
Hard rock sand production: Double-roll hydraulic crusher (e.g., 2PGY1500×1000, controllable particle size 1–5mm);
Construction waste recycling: Double-tooth roller crusher (e.g., 2PGC600×900, gentle crushing preserves gradation).
3. Core Comparison: Primary vs Secondary Crushers
| Indicators | Primary Crusher | Secondary Crusher |
| Function | Primary Crushing of Large Raw Materials (Coarse Crushing) | Medium and Fine Crushing, Sand Making, Precise Particle Size Control |
| Feed Size | ≤1500mm (Jaw Crusher) | ≤200mm (Two-stage Crusher) |
| Output particle size | 40–300mm | 1–50mm (adjustable) |
| Wet Material Adaptability | Poor (Requires pretreatment) | Excellent (Two-stage crushing supports moisture content ≤15%) |
| Representative Models | PE Series Jaw Crusher, Heavy Hammer Crusher | Two-Stage Crusher, Double Roll Crusher, Double Tooth Roll Crusher |
