Laboratory Sealed Double Roll Crusher for Coal Ore Rock and Medium Hardness Materials Sample Preparation

Product Overview

The laboratory sealed double roll crusher is a high-performance sample preparation system engineered to reduce medium-hard materials to uniform particle sizes with precision and reliability. Operating on an extrusion crushing principle, two counter-rotating rollers compress and fracture feed material into consistent, controlled outputs, making this unit indispensable for analytical laboratories and quality control environments.

This equipment is specifically designed for crushing coal, ore, rock, and other brittle non-metallic substances with compressive strengths up to 60 MPa and hardness around 3 on the Mohs scale. It serves a wide range of industries, including coal testing facilities, mining operations, power plants, chemical processing labs, and research institutions, where representative sample preparation is critical to accurate material characterization.

Built with a rugged sealed structure and durable heat-treated rolls, this crusher delivers consistent performance under demanding daily use. Its compact footprint and straightforward operation make it a trusted workhorse in busy labs, while the adjustable output size and optional smooth or toothed roll configurations ensure it meets diverse material processing requirements with minimal contamination risk.

Key Features

• Sealed Enclosure Design: The fully enclosed crushing chamber prevents dust leakage and sample cross-contamination, safeguarding both operator health and sample integrity during processing.
• Precision Roll Adjustment: A simple manual adjustment mechanism allows operators to set the gap between rollers accurately, delivering repeatable output particle sizes down to ≤3 mm for reliable analytical results.
• Hardened Roll Construction: The rollers are machined from carbon structural steel and heat-treated to a medium hardness, providing excellent wear resistance and extended service life even when processing abrasive materials.
• Dual Roll Configuration Options: Users can select between smooth rollers for general crushing or toothed rollers for enhanced grip on harder materials, optimizing performance for specific sample types.
• High Crushing Ratio: The unit achieves a significant size reduction from ≤13 mm feed to ≤3 mm output in a single pass, minimizing the need for multiple crushing stages and increasing lab productivity.
• Compact and Robust Design: The system’s space-saving footprint integrates easily into existing lab layouts, while its heavy-duty construction withstands the rigors of continuous operation.
• Easy Maintenance: Accessible internal components and a straightforward design simplify routine cleaning and part replacement, reducing downtime and lowering total cost of ownership.
• Uniform Sample Output: The extrusion crushing action produces predominantly flaky particles with high size uniformity, which is ideal for subsequent pulverizing, pelletizing, or direct analytical testing.
• Custom Horizontal Configuration Available: Upon request, a horizontal layout can be supplied to accommodate specialized workflows or space constraints, demonstrating flexibility beyond the standard vertical arrangement.

Applications

Technical Specifications

The following table details the specifications for the standard and B‑type variants of this double roll crusher. Both models share identical performance parameters and are available with smooth or toothed rolls to suit different material characteristics.

Note: The PP‑RC03B variant may include additional features for specific material handling; contact our sales team for detailed guidance when selecting between the two models.

Why Choose This Product

• Industry‑Proven Reliability: Engineered for continuous laboratory use, the heat-treated rollers and robust frame deliver years of dependable service with minimal wear, ensuring your sample preparation workflow remains uninterrupted.
• Precision Engineering: Tight roller gap control guarantees consistent output particle size distribution, a critical factor for achieving repeatable analytical results in quality control and research applications.
• Uncompromised Build Quality: Every component, from the sealed housing to the drive system, is manufactured to exacting standards, reflecting a commitment to durability that reduces long‑term operating costs.
• Flexible Customization: The choice of smooth or toothed rolls, along with the option for a horizontal configuration, allows this crusher to be tailored precisely to your material and space requirements—no off‑the‑shelf compromises.
• Dedicated Technical Support: Our engineers provide responsive pre‑sales consultation and after‑sales service, helping you configure the optimal crusher setup and keeping it running at peak performance.

Invest in a sample crushing solution that prioritizes precision, longevity, and user safety. Contact us today to request a quote or discuss how we can customize this equipment for your specific application.