The Huashengming limestone crusher primarily employs a double-roll design (also known as a twin-roll crusher), integrating hydraulic and wear-resistant technologies. It is specifically optimized for the efficient processing of medium-hard materials such as limestone.
limestone crusher
1. Product Type and Working Principle
Double Roll Crusher
Working Principle: Crushes materials by squeezing them between two counter-rotating rollers. The roller gap is hydraulically adjustable (1–50mm) to control output particle size.
Applications: Suitable for limestone, river pebbles, construction waste, etc. Feed size ≤80mm, adjustable output size 1–50mm.
Advantages: Compact structure, low over-crushing rate (well-rounded particle shape), non-sticking design for wet materials, anti-jamming features.
Two-Stage Crusher (Optional)
Working Principle: Two-stage series rotor hammer crushing with no screen bottom design, suitable for high-moisture materials.
Applications: Limestone, coal gangue, etc. Hourly capacity: 20–180 tons (e.g., model 1000×800: 60–90 tons/hour).
2. Core Advantages
Wear-Resistant & Durable
Roll shells made of high-chromium manganese steel + rare metal alloy, lifespan ≥2 years, extending service life by 50% compared to standard equipment.
Hydraulic overload protection automatically retracts rollers upon encountering hard objects, preventing equipment damage.
High Efficiency & Energy Saving
Dual motor drive achieves 45% lower energy consumption than hammer crushers at equivalent capacity.
Low dust and noise (≤75dB), with integrated dust collection systems meeting environmental standards.
Flexible and Portable
Compact models (e.g., 2PGT400×250) support dual diesel/electric power, eliminating fixed power source requirements.
Modular design enables rapid assembly/disassembly, ideal for mobile mining operations.
3. Model Specifications & Applications
| Model | Roll Diameter × Roll Length (mm | Feed Size (mm) | Capacity (t/h) | Motor Power (kW) | Applications |
|---|---|---|---|---|---|
| Compact | 2PGT400×250 | ≤25 | 2–10 | 15×2 |
Small-scale sand plants, on-site recycling of construction waste
|
| 中型 | 2PGT800×600 | ≤40 | 12–50 | 45×2 | Medium-sized stone quarry, limestone sand production |
| 大型 | 2PGY2000×1200 | ≤120 | 300–400 | 160×2 | Large-scale mining operations and aggregate production lines |
4. Industry Application Cases
Construction Waste Recycling: Crushes concrete blocks into recycled aggregates for eco-brick production (e.g., 90% resource recovery rate at Xi’an Little Wild Goose Pagoda project).
Sand and Gravel Aggregate Production: Replaces natural sand, supplying manufactured sand raw materials for mixing stations (cost savings of 30% for large-scale lines exceeding 200 tons per hour).
Mining Coarse/Fine Crushing: Processes medium-hard ores like limestone and fluorite, producing uniform output suitable for metallurgical/chemical requirements.
