Roll Crushers
Sealed Double Roll Crusher for Laboratory Sample Preparation of Medium Hardness Materials
Item Number: PP-RC01
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Product Overview
This sealed double roll crusher is a specialized laboratory instrument for the medium and fine crushing of medium-hard, brittle materials. Using an opposed-roll extrusion mechanism, it breaks feed material into consistent flake-shaped particles while a sealed enclosure contains dust and contamination, ensuring operator safety and sample integrity. The unit is valued for its high reduction ratio, adjustable output size, and robust construction.
The equipment is ideally suited for preparing samples of coal, ore, rock, and similar substances in fields such as mining, power generation, chemical engineering, building materials, and scientific research. It handles materials with compressive strength up to 60 MPa and moisture less than 6%, delivering dependable size reduction for quality control, process development, and analytical work. Its compact design conserves valuable lab space while offering the throughput needed for routine and continuous testing.
Constructed with heat-treated carbon steel rolls and a heavy-duty frame, this crusher provides long-term durability and consistent performance. The system has proven itself as a reliable, high-efficiency sample preparation solution in laboratories worldwide, backed by engineering that prioritizes ease of maintenance and operational safety.
Key Features
- Sealed Crushing Chamber: The enclosed design contains dust and minimizes sample contamination, enhancing workplace safety and maintaining sample purity throughout the crushing process.
- Adjustable Output Size: The gap between rolls is easily adjustable, allowing operators to fine-tune the output particle size for different material types and analysis requirements.
- Hardened Roll Technology: Rolls are manufactured from carbon structural steel and heat-treated to medium hardness, with special surface treatment to prevent material adhesion—ideal for coal and similar materials.
- Smooth or Toothed Roll Options: Available with smooth rolls for flake-like output or toothed rolls for more aggressive reduction, the configuration can be chosen based on material characteristics and desired particle shape.
- Compact, Sturdy Construction: The unit's robust frame and efficient layout minimize footprint while maximizing durability, making it a long-lasting addition to any laboratory.
- High Crushing Ratio and Efficiency: The opposed-roll mechanism delivers high reduction ratios in a single pass, reducing the need for multiple stages and boosting overall productivity.
- Easy Maintenance: The design provides convenient access to rolls and internal components for cleaning and inspection, reducing downtime and simplifying routine upkeep.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Coal and Coke Sample Preparation | Crushes coal and coke for proximate analysis, calorific value testing, and ash fusion determination. | Produces uniform flake particles with minimal fines, ideal for standard test methods. |
| Mineral Ore Crushing | Reduces ore samples from mineral exploration and mining operations for grade analysis and process development. | Durable rolls handle abrasive minerals while sealed design prevents cross-contamination between samples. |
| Power Plant Fuel Quality Control | Processes coal and biomass samples to verify fuel specifications for combustion efficiency and emissions compliance. | Consistent output size ensures repeatable analytical results for feed quality monitoring. |
| Building Materials Testing | Crushes limestone, shale, and other raw materials for cement and concrete testing labs. | Adjustable gap enables precise sizing for various material hardnesses. |
| Chemical Industry Raw Material Preparation | Reduces medium-hard chemicals and catalysts for quality control and research applications. | Sealed enclosure minimizes exposure to hazardous dust and preserves sample integrity. |
| Geological and Metallurgical Research | Prepares rock and ore specimens for petrographic analysis, mineral liberation studies, and hardness testing. | Reliable reduction of varied sample types with minimal operator intervention. |
| Environmental Monitoring | Crushes soil and sediment samples for contaminant analysis and remediation studies. | Non-stick roll treatment prevents material buildup when processing moist samples. |
Technical Specifications
The PP-RC01 series sealed double roll crushers are available in four standard configurations to meet various throughput requirements. All models share a common sealed design, hardened carbon steel rolls (optional smooth or toothed), and adjustable output size. Suitable for brittle materials with compressive strength ≤60 MPa; moisture content should be kept below 6% to avoid caking. An optional horizontal configuration can be arranged upon request.
| Model | Roll Dimensions (Diameter × Width) | Max Feed Size (mm) | Output Size (mm) | Capacity (T/h) | Motor Power (kW) |
|---|---|---|---|---|---|
| PP-RC01-200x75 | 200 × 75 mm | ≤13 | ≤3 (adjustable) | 0.2 – 0.5 | 1.5 |
| PP-RC01-200x125 | 200 × 125 mm | ≤15 | ≤3 (adjustable) | 0.3 – 1.0 | 3.0 |
| PP-RC01-200x150 | 200 × 150 mm | ≤15 | ≤3 (adjustable) | 0.5 – 1.5 | 3.0 |
| PP-RC01-270x300 | 270 × 300 mm | ≤20 | ≤3 (adjustable) | 0.8 – 2.0 | 4.0 |
Why Choose This Product
- Proven Long-Term Reliability: Heat-treated carbon steel rolls and a robust frame ensure years of consistent performance in demanding laboratory environments, minimizing unscheduled downtime and maintenance costs.
- Precision Size Control: The easily adjustable roll gap delivers precise, repeatable output particle size, which is critical for reproducible analytical results and meeting standard test method requirements.
- Versatile Configuration: Available in smooth or toothed roll variants and optional horizontal layout, allowing customization to specific material characteristics and space constraints—ensuring an optimal fit for your workflow.
- Sealed, Safe Operation: The fully enclosed crushing chamber protects operators from dust and contamination while preserving sample integrity, a crucial advantage for hazardous or sensitive materials.
- Responsive Customer Support: Our engineering team provides application guidance, spare parts availability, and comprehensive after-sales service to keep your laboratory productive and your investment secure.
Contact us today to discuss your sample preparation needs or request a quotation for a customized solution.
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