Disc & Rotor Mills
Laboratory Hammer Mill for Coal Quality Analysis and Brittle Mineral Grinding
Item Number: PP-GE12
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Product Overview

This high-speed impact milling system is engineered specifically for the rapid preparation of brittle and medium-hard samples, offering a versatile solution for both coarse and fine grinding requirements. By utilizing high-velocity kinetic energy transfer, the equipment shatters materials along natural cleavage planes, ensuring that sample integrity is maintained while achieving significant size reduction. The unit's primary value proposition lies in its ability to process large batches with exceptional throughput and minimal residual material, making it an indispensable tool for high-volume laboratory environments that demand both speed and precision.
Primarily utilized within power generation facilities, metallurgical laboratories, and material science research centers, this system is optimized for coal quality analysis and geological mineral processing. Its design focuses on operational efficiency, featuring a patented feeding mechanism that ensures a steady flow of material into the grinding chamber. This prevents overloading and guarantees a uniform particle size distribution, which is critical for downstream analytical processes such as X-ray fluorescence (XRF) or combustion analysis. Whether processing granite, coke, or refractory clays, the equipment delivers the repeatable results required for rigorous quality control standards.
Engineered for longevity under demanding conditions, this unit features a robust motor capable of maintaining high-frequency rotations even under significant load. The bench-top design does not compromise on power, providing industrial-grade pulverization within a compact footprint. Buyers can remain confident in the equipment's performance due to its advanced safety features, including electronic braking and a secure chamber locking mechanism. This system represents a fusion of heavy-duty engineering and refined laboratory control, ensuring consistent performance for years of continuous operation in professional sample preparation workflows.
Key Features
- High-Velocity Impact Processing: The high-speed rotor operates at up to 10,000 RPM, generating a peripheral velocity of 76.3 m/s. This intense kinetic energy ensures rapid pulverization of even the toughest brittle materials, significantly reducing processing time compared to traditional mills.
- Electronic Braking System: For enhanced safety and operational efficiency, the equipment is fitted with an advanced electric brake that brings the high-speed rotor to a complete stop almost instantaneously upon cycle completion or emergency shut-off.
- Precision Sieve Customization: The system supports a wide range of bottom sieves, allowing operators to control the final particle fineness from 10mm down to 0.2mm. This flexibility makes the unit suitable for a diverse array of secondary analytical requirements.
- Patented Automatic Feeding: To minimize human error and prevent sample contamination, the unit incorporates a specialized auto-feeding system. This ensures a consistent volumetric flow of material into the center of the milling chamber for optimized impact frequency.
- Integrated Air-Flow Acceleration: The rotor design naturally draws massive volumes of air through the feeding tunnel. This airflow cools the sample during processing and accelerates the passage of reduced particles through the sieve, preventing chamber clogging and heat-induced sample degradation.
- Modular Maintenance Design: Both the rotors and bottom sieves are designed for easy separation and removal. This facilitates rapid cleaning between batches, which is essential for maintaining sample purity and preventing cross-contamination in sensitive analytical environments.
- Digital Speed Control: The adjustable rotation speed allows the operator to tailor the impact force to the specific hardness and brittleness of the sample, providing the control needed for delicate minerals that might otherwise suffer from excessive dusting or thermal stress.
- Space-Efficient Bench-top Chassis: Despite its industrial-grade power, the equipment is housed in a compact, vibration-dampened bench-top frame, making it ideal for laboratories where floor space is at a premium but high-performance milling is required.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Coal Quality Analysis | Pulverizing coal and coke samples for calorific value and sulfur content testing. | Uniform fineness ensures accurate and repeatable combustion data. |
| Geology and Mining | Grinding granite, minerals, and soil samples for geochemical mapping. | High throughput allows for the processing of large survey batch sets. |
| Ceramics and Glass | Reducing porcelain, glass cullet, and oxides to fine powders for glazing. | Minimizes contamination to preserve the optical and structural purity of the material. |
| Construction Materials | Processing refractory clay and minerals for structural integrity testing. | Precise size control allows for the simulation of various industrial aggregate grades. |
| Power Plant Operations | On-site testing of fuel sources to monitor furnace efficiency and emissions. | Fast turnaround time allows for real-time adjustments to plant operations. |
| Environmental Science | Preparing soil and sediment samples for heavy metal and nutrient analysis. | Efficient chamber cleaning prevents carry-over between different environmental sites. |
| Metallurgy | Coarse and fine grinding of slag and ores for recovery rate estimation. | Robust rotor design handles abrasive materials with minimal wear and tear. |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Identifier | PP-GE12 |
| Maximum Feed Size | < 5 mm |
| Final Fineness Range | 0.2 mm – 10 mm |
| Rotational Speed | 10,000 rpm |
| Rotor Peripheral Velocity | 76.3 m/s |
| Rated Power | 1.2 kW |
| Operating Principle | High-speed impact / Cross-tapping rotor |
| Sieve Selection | Interchangeable bottom sieves |
| Feeding Mechanism | Patented automatic feeding hopper |
| Braking Mechanism | Integrated electric braking |
| Sample Compatibility | Brittle, medium-hard materials |
| Chassis Type | Bench-top |
Why Choose This Product
Investing in this hammer mill ensures that your laboratory is equipped with a tool designed for the rigors of industrial material science. The engineering focus on high-speed kinetic impact, rather than simple pressure, allows for a more efficient reduction of brittle materials without the excessive heat buildup associated with slower methods. This preserves the chemical composition of your samples, which is paramount for coal quality analysis and mineral research.
The durability of the 1.2kW motor and the precision of the 10,000 RPM rotor reflect a commitment to premium build quality. Unlike standard mills, this system is designed to minimize the "dead zones" within the chamber where material often accumulates, ensuring that nearly 100% of your sample is recovered for analysis. This efficiency not only saves time but also improves the statistical reliability of your data by ensuring the entire sample is represented in the final powder.
Furthermore, the modular nature of the internal components means that maintenance and cleaning can be performed in seconds, not minutes. For a busy lab, this translates to higher throughput and a lower cost per sample. By choosing this system, you are opting for a robust, reliable, and highly precise instrument that will serve as the backbone of your sample preparation workflow for years to come.
Contact our technical sales team today to discuss your specific material requirements or to request a customized quote for your laboratory facility.
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