Laboratory Disc Pulverizer for Coal Coke Ore and Medium Hard Materials Sample Preparation

Product Overview

In many laboratories, the ability to reliably crush and pulverize medium-hard materials into fine powders is critical for accurate chemical and physical analysis. This heavy-duty disc pulverizer fills that role, offering a straightforward and efficient solution for sample preparation. Its dual-disc grinding system applies intense shear and compressive forces to quickly reduce particle sizes, making it an indispensable tool for any testing facility that processes coal, coke, ores, and similar minerals.

The equipment is engineered for continuous, high-throughput operation. With a powerful 1.1 kW motor driving the main shaft at 778 rpm, it delivers a consistent output of 0.1 to 1 mm particles at a rate of 10 to 25 kilograms per hour. This particle range is ideal for common analytical methods such as X-ray fluorescence (XRF), wet chemistry, and proximate analysis. The adjustable grinding gap, controlled by dual handwheels, gives operators precise command over the final particle distribution, ensuring that the pulverized material meets strict method specifications every time.

Designed for the rigors of daily laboratory work, this disc crusher combines rugged construction with operator-friendly features. The high-manganese steel grinding discs resist abrasive wear, while the cast iron base and robust housing minimize vibration and noise. A hinged cover and removable hopper simplify cleaning, preventing cross-contamination between samples. Whether deployed in a remote mine-site lab or a busy central testing facility, this pulverizer provides the dependable performance and low total cost of ownership that professionals demand.

Key Features

• High-Efficiency Grinding Mechanism: The heart of this system consists of two machined grinding discs—one stationary and one rotating—that generate intense pressure and shear forces. As material enters the grinding zone, it is instantly crushed and ground, exiting as a fine powder after a single pass. This design ensures rapid size reduction with minimal heat buildup, preserving the integrity of heat-sensitive samples.
• Precise Particle Size Adjustment: A user-friendly mechanical adjustment system, operated via a large locking handwheel and a fine-tuning handwheel, allows the operator to set the exact gap between the grinding discs. Turning the small handwheel advances or retracts the main shaft, varying the gap and therefore the output particle size. This stepless adjustment covers the full 0.1–1 mm range, and once set, the large handwheel securely locks the position for reproducible results.
• Durable High-Manganese Steel Discs: Both the fixed and rotating grinding plates are fabricated from high-manganese steel, a work-hardening alloy renowned for its exceptional resistance to impact and abrasion. This material choice not only extends the service life of the discs far beyond ordinary carbon steel but also reduces the risk of metallic contamination, making the mill suitable for trace element analysis.
• Robust, Low-Vibration Construction: The entire grinding assembly is mounted on a heavy cast iron base with precision-aligned bearings, absorbing operational stresses and minimizing transmitted vibrations. This construction contributes to the unit's low noise output—a critical factor in laboratory environments where multiple instruments may be in use simultaneously—and ensures long-term alignment stability.
• Convenient Cleaning and Maintenance: Accessing the grinding chamber for cleaning takes just seconds: simply loosen the end cover fasteners and swing it open to expose the discs. The absence of trapped corners and the smooth surfaces of the manganese steel discs facilitate rapid wipe-down or brushing, reducing downtime between samples. The hopper below the chamber collects pulverized material and can be easily removed for emptying or washing.
• Integrated Safety Features: Operator safety is addressed through a fully enclosed grinding chamber and a protective guard around the belt drive. These barriers eliminate exposure to moving parts during operation, meeting stringent laboratory safety requirements. Additionally, the external handwheel adjustment means that gap changes can be made without opening the chamber.
• Scalable Throughput for Busy Labs: Capable of processing 10 to 25 kilograms per hour, this pulverizer easily handles the daily sample loads of commercial assay labs, mining exploration camps, and industrial quality control departments. Its continuous-duty rating means it can run for extended periods without overheating, maintaining consistent performance throughout a shift.
• Compact Footprint, Easy Integration: Despite its heavy-duty construction, the unit occupies a modest floor area, allowing it to be placed on a standard laboratory bench or dedicated stand. The top-mounted feed hopper and front collection drawer are positioned ergonomically for comfortable operation, even during prolonged use.

Applications

Technical Specifications

Why Choose This Product

• Proven Reliability in Demanding Environments: Many of these pulverizers have been in continuous service for over a decade in mining labs and geological survey institutes, testifying to their robust engineering. The combination of a simple, over-engineered mechanical design and wear-resistant materials translates to unmatched uptime and minimal maintenance requirements.
• Precision Manufacturing for Consistent Results: Every grinding disc assembly is machined to tight tolerances, ensuring that the gap set by the operator remains uniform across the entire disc face. This precision eliminates hot spots and uneven wear, leading to repeatable particle size outputs from the first sample to the ten-thousandth.
• Operator-Centric Safety and Ease of Use: From the external gap adjustment that requires no tools to the hinged chamber access for cleaning, every design feature prioritizes the user experience. The integrated safety guards and vibration-damping base also create a safer, more comfortable workspace, reducing operator fatigue during long processing runs.
• Customizable Solutions and Expert Support: Our application specialists are ready to assist with integrating this pulverizer into your specific workflow. Whether you need specialized disc materials for unusual samples, customized voltage requirements, or advice on sample preparation protocols, we provide responsive pre- and post-sales support to ensure your success.
• Low Cost of Ownership Over the Equipment Lifecycle: With no complex electronics, readily available spare parts, and discs that can be resurfaced or replaced quickly, the total cost of operating this pulverizer remains exceptionally low. When compared to alternative high-speed mills, it offers significant savings in both energy consumption and consumable replacement frequency.

To learn more about how this laboratory disc pulverizer can streamline your sample preparation process, or to request a quote for a configuration tailored to your laboratory's needs, contact our sales team today.