Laboratory Double Roll Crusher Small Squeezing Roll Granulator for Coal Ore and Rock Sample Preparation

Product Overview

This laboratory double roll crusher is an advanced sample preparation system engineered for the medium and fine crushing of medium-hardness, brittle materials. Utilizing dual counter-rotating heavy-duty rollers, the equipment subjects raw feed materials to severe compressive force within the crushing chamber. This roll-squeezing mechanism ensures rapid, highly efficient size reduction, converting irregular mineral lump stock into uniform, predominantly flake-shaped particles essential for analytical workflows.

Designed specifically for rigorous laboratory and pilot-plant environments, this system serves target industries including coal geology, power generation, chemical manufacturing, building materials, metallurgy, and scientific research institutes. It fills a critical operational role between primary jaw crushing and final micro-fine pulverization, providing a controlled feed size that maximizes downstream grinding efficiency and guarantees representative sample sampling.

Built with premium mechanical components and engineered drive assemblies, the equipment delivers unwavering performance under demanding operational conditions. Its compact design minimizes bench space requirements while offering easy adjustment and operational reliability. By maintaining consistent gap spacing and employing specialized anti-stick roller surface engineering, this unit mitigates clogging risks and ensures reproducible results across long operating cycles.

Key Features

• Counter-Rotating Compression Technology: Utilizes two precision-machined, counter-rotating rollers to draw in feed stock and exert high compressive stress, ensuring immediate crushing and high-efficiency material reduction.
• High Reduction Ratio and Output Efficiency: Delivers impressive single-pass size reduction across a wide range of feed materials, enabling processing throughput capacities up to 2.0 tonnes per hour for high-volume laboratory requirements.
• Precision Adjustable Discharge Sizing: Features a user-friendly gap setting mechanism that allows fine control of the clearance between rollers, enabling operators to achieve target output particle sizes of ≤3 mm with exceptional consistency.
• Specialized Anti-Stick Surface Treatment: Rollers undergo proprietary surface treatment processes engineered to prevent coal and damp mineral adhesion, maintaining smooth material transport through the crushing zone.
• Interchangeable Roller Configurations: Available with smooth rollers for fine compression flaking or toothed rollers for aggressive gripping and initial reduction of harder feeds, offering tailored functionality for varied sample types.
• Uniform Particle Size Distribution: Optimized roll geometry and controlled nip angles eliminate oversized pass-through, producing homogeneously sized regular flake particles ideal for subsequent analytical testing.
• Compact Structural Footprint: Combines an aesthetically refined industrial exterior with a compact frame, integrating feeding hoppers and collection drawers for easy setup and rapid cleaning between sample runs.
• High-Torque Drive System: Powered by heavy-duty electric motors ranging from 1.5 kW to 4.0 kW, ensuring constant angular speed, low vibration, and steady torque under variable feed loading.

Applications

Technical Specifications

The PSXP series laboratory double roll crusher is available in four specialized model variants designed to meet distinct throughput demands, feed size requirements, and motor power configurations. All models maintain an adjustable discharge particle size threshold of ≤3 mm and are optimized for brittle non-metallic materials with a moisture content of ≤6%.

Note: To maintain peak crushing performance and avoid particle agglomeration or roller clogging, raw material moisture should not exceed 6%. For feeds exceeding this moisture level, pre-drying is recommended.
Model Selection Guidance: Select the PSXP-200x75 for light benchtop processing; choose the PSXP-200x125 or PSXP-200x150 for medium-duty lab throughput; select the PSXP-270x300 for heavy-duty pilot line capacity and larger initial feed inputs up to 16 mm.

Why Choose This Product

• Superior Mechanical Reliability: Heavy-duty structural framing and hardened alloy rollers ensure years of continuous, trouble-free operation under rigorous daily crushing workloads.
• Engineered Anti-Adhesion Technology: Proprietary roller surface finishing minimizes material buildup when handling sticky or carbonaceous substances like coal, drastically reducing cleaning downtime.
• Flexible Application Adaptability: Choice between smooth and toothed roller profiles combined with fine gap adjustment allows precise adaptation to diverse mineral hardnesses and fracture characteristics.
• Precision Sample Uniformity: Delivers tight particle size distribution and regular flake morphology, eliminating sample segregation and enhancing the accuracy of downstream chemical assays.
• Comprehensive Technical Support: Backed by complete application engineering assistance, long-term spare parts availability, and responsive global customer service.

Contact our technical sales team today to request a detailed quote or consult with our specialists on customizing a sample preparation solution tailored to your laboratory requirements.

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