Roll Crushers
Tungsten Carbide Double Roll Crusher Laboratory Double Roll Crusher Metal Free Fine Sample Preparation Equipment
Item Number: PP-RC14
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Product Overview
This high-performance double roll crusher is specifically engineered for clean, ultra-pure sample preparation in advanced materials R&D and quality control testing. Utilizing opposing counter-rotating rollers constructed from ultra-dense tungsten carbide, the equipment achieves rapid particle size reduction through high-pressure compressive squeezing and shear forces. By replacing traditional steel crushing surfaces with high-hardness tungsten carbide rollers and inner lining plates, this unit effectively eliminates metallic cross-contamination, making it the ideal solution for processing sensitive, high-value, and abrasive substances.
The primary use cases for this equipment span advanced energy storage, semiconductor material development, specialized chemical processing, and geological sample analysis. Industrial testing facilities rely on this unit to crush demanding materials such as lithium battery cathode and anode precursors, high-purity polysilicon, rare earth oxides, coal, ore samples, and structural ceramics. Its adaptable gap adjustment mechanism enables precise control over final particle sizing across both laboratory batch testing and semi-continuous pilot production lines.
Built to withstand continuous industrial operation, this crusher combines dynamic differential speed roller rotation with a reinforced structural framework. The engineered drive system prevents material packing and thermal buildup, delivering repeatable particle distribution even when processing sticky, high-moisture, or extremely hard feedstocks. Laboratory managers and process engineers can maintain complete confidence in the operational consistency, mechanical safety, and long-term durability of this crushing system under severe daily processing conditions.
Key Features
- Tungsten Carbide Roller Contact Surfaces: Fitted with solid tungsten carbide rollers and lining plates boasting a surface hardness exceeding HRA 90, preventing iron and secondary heavy metal contamination during high-stress crushing operations.
- Differential Speed Nipping Mechanism: Features counter-rotating rollers driven at optimized differential speeds, generating intense nipping forces that smoothly draw hard materials into the crushing chamber while reducing surface wear.
- Precision Discharge Gap Control: Equipped with an easily accessible, continuous roller gap adjustment system ranging from 0 mm to 20 mm, allowing operators to rapidly customize discharge particle size down to sub-3 mm or 0–6 mm parameters.
- Anti-Stick Surface Processing: Rollers undergo specialized surface treating to minimize material adhesion, coking, and buildup when crushing cohesive substances, moist coal, or soft resin-bound minerals.
- Heavy-Duty Structural Framework: Constructed on a rigid cast base with heavy-gage housing, reinforced drive shafts, and high-torque gearing to absorb mechanical shock loads during high-volume crushing tasks.
- Enclosed Dust Suppression Housing: Incorporates fully integrated protective covers over the gear train and crushing zone to suppress airborne particulates, maintain clean lab environments, and protect operator safety.
- Uniform Particle Size Output: Compressive roll-crushing action produces tight particle size distributions with minimal unwanted fine powder, optimizing feed preparation for downstream ball milling or analytical screening.
- Simplified Maintenance Access: Engineered with removable side panels and open access to internal components, ensuring fast cleanout between sample runs to prevent cross-contamination.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Lithium Battery Material Preparation | Crushing raw cathode/anode mineral compounds, graphite, and precursor powders prior to calcination and fine synthesis. | Completely eliminates iron, copper, and chromium contamination to maintain strict battery cell purity specs. |
| Polysilicon & Semiconductor R&D | Size reduction of raw silicon ingots, poly-chunk fragments, and quartz minerals for solar and chip fabrication. | Extreme roller hardness prevents material contamination during the size reduction of ultra-hard silicon. |
| Rare Earth & Strategic Metallurgy | Primary crushing of dense rare earth mineral concentrates, oxides, and high-purity alloy buttons for hydrometallurgy. | Provides predictable feed sizes that maximize kinetic yield during chemical leaching and extraction processes. |
| Geological & Mining Assay Labs | Processing hard rock core samples, iron ores, aggregates, and coal core samples for assaying and chemical analysis. | Rugged tungsten carbide lining resists severe abrasive wear, ensuring consistent output across thousands of samples. |
| Advanced Technical Ceramics | Granulation and pre-crushing of alumina, zirconia, silicon carbide, and nitride ceramic green bodies or calcined powders. | Prevents metallic trace impurities that could impair electrical insulation, optical clarity, or mechanical strength. |
| Fine Chemical & Slag Processing | Size reduction of industrial catalysts, chemical salts, synthetic minerals, and metallurgical slag samples. | Anti-stick roller surface design prevents clogging and maintains steady throughput across variable moisture feeds. |
Technical Specifications
| Parameter | PP-RC14-200x75 | PP-RC14-200x125 | PP-RC14-200x150 | PP-RC14-250x200 |
|---|---|---|---|---|
| Roller Size (mm) | φ200 × 75 | φ200 × 125 | φ200 × 150 | φ250 × 200 |
| Max Feed Particle Size (mm) | < 13 | < 13 | < 13 | < 25 |
| Output Particle Size (mm) | < 3 | < 3 | < 3 | 0–6 (Adjustable) |
| Roller Gap Adjustment Range | 0 – 20 mm | 0 – 20 mm | 0 – 20 mm | 0 – 20 mm |
| Roller & Lining Material | Tungsten Carbide | Tungsten Carbide | Tungsten Carbide | Tungsten Carbide |
| Surface Hardness | ≥ HRA 90 | ≥ HRA 90 | ≥ HRA 90 | ≥ HRA 90 |
| Processing Capacity (kg/h) | 200 – 300 | 300 – 400 | 400 – 500 | 3800 – 4500 |
| Motor Power (kW) | 1.5 | 3.0 | 3.0 | 4.0 |
| Overall Dimensions (L×W×H, mm) | 630 × 450 × 700 | 680 × 540 × 750 | 700 × 590 × 750 | 900 × 800 × 750 |
| Machine Weight (kg) | 150 | 200 | 240 | 500 |
| Standard Roller Option | Manganese Steel | Manganese Steel | Manganese Steel | Manganese Steel |
| Drive System | Gear-driven Differential | Gear-driven Differential | Gear-driven Differential | Gear-driven Differential |
Why Choose This Product
- Uncompromising Purity Standards: Designed explicitly for high-purity laboratories where metallic trace contamination leads to ruined batches and inaccurate analytical assay results.
- Exceptional ROI via Extended Wear Life: Solid tungsten carbide crushing elements outlast traditional hardened steel components by up to ten times, dramatically lowering maintenance costs and downtime.
- Precision Process Reproducibility: Fine-threaded gap adjustment systems ensure that output particle distributions remain completely repeatable across multiple operators and shift changes.
- Robust Heavy-Duty Engineering: Built with industrial-grade cast housings, oversized bearings, and enclosed gear drives to provide steady, vibration-free operation under heavy continuous workloads.
- Comprehensive Material Preparation Solutions: Backed by our full suite of laboratory sample preparation tools, including planetary mills, sieving systems, and hydraulic compaction presses for seamless workflow integration.
Contact our technical sales engineers today to request a quotation, receive material trial testing guidance, or discuss customized crushing configurations tailored to your specific process workflow.
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