In coal testing, metallurgical laboratories, geological exploration, third-party inspection laboratories, and port material testing, the consistency, uniformity, and representativeness of sample preparation directly determine the accuracy of subsequent laboratory analysis. A **hammer crusher** is a core standalone machine for secondary and fine crushing in mineral sample preparation. Designed specifically for laboratory sample preparation, Qingdao Hitec’s HC450 hammer crusher uses the impact of high-speed rotating hammers to efficiently prepare coal, ore, and other brittle material samples.
I. Operating Principle
The HC450 hammer crusher uses a rotor to drive its hammers at high speed, repeatedly striking material entering the crushing chamber. Material is broken by impacts and collisions within the chamber, including collisions between particles. Once the required particle size is reached, it passes through the screen plate and exits the chamber, completing the secondary and fine crushing stages. The compact machine is fitted with casters for flexible positioning and relocation within the laboratory. Quick-opening maintenance access facilitates chamber cleaning and screen plate replacement, effectively reducing the risk of sample cross-contamination. This makes it particularly suitable for alternating between multiple sample batches and types.
II. HC450 Hammer Crusher — Key Specifications
- Model: HC450
- Maximum feed size: ≤50 mm
- Standard discharge particle size: ≤3 mm
- Crushing capacity: 800 kg/h
- Dust extraction ports: 2; dust extraction airflow: 350 L/s
- Power supply: three-phase 380 V, 7.5 kW
- Crushing chamber diameter: 450 mm
The machine provides two dust extraction points for connection to an external dust extraction system. This controls dust escape, improves laboratory working conditions, and meets the environmental and occupational health management requirements of inspection organizations.
III. Main Industries and Applications
Hitec’s HC450 hammer crusher is suitable for crushing medium-hard, brittle materials and is widely used in:
✅ Coal sample preparation in coal industry laboratories
✅ Crushing of metallurgical, ore, and slag samples
✅ Laboratory sample preparation for geological exploration and research institutes
✅ Material testing by port groups, third-party testing organizations, and government inspection centers
✅ Preliminary sample preparation for fire assay laboratories
It can operate as a standalone machine or connect to automated sampling and sample preparation systems. Coordinated operation with sample splitters, grinding mills, and feeding equipment creates a complete intelligent sample preparation line compatible with Hitec’s comprehensive automated sample preparation solutions.
IV. Product Advantages
1. **Efficient sample preparation with consistent discharge**: With a capacity of 800 kg/h, a consistent reduction ratio, and a controlled discharge particle size of ≤3 mm, the machine produces uniform sample particles to ensure repeatable laboratory test results.
2. **Dust-control design suited to laboratory requirements**: Two dust extraction ports allow dust to be controlled when connected to an external extraction system, reducing sample loss and improving the laboratory working environment.
3. **Easy maintenance and reduced cross-contamination risk**: The crushing chamber opens quickly for convenient cleaning. Wear parts, including screen plates and hammers, are easy to remove and replace, reducing operation and maintenance costs.
4. **Versatile operating applications**: Designed for coal, coke, and various medium-hard, brittle minerals, the machine is less prone to blockages and provides stable, reliable continuous sample preparation.
5. **Strong system integration capabilities**: Qingdao Hitec can supply standalone equipment plus **comprehensive automated sample preparation system solutions**, support the supply of **complete fire assay laboratory equipment**, and provide custom development of digitalized sample preparation systems.
V. About Qingdao Hitec Electromechanical Technology
Qingdao Hitec Electromechanical Technology Development Co., Ltd. specializes in the research, development, and manufacture of standalone mineral sample preparation equipment, automated sampling and sample preparation systems, complete fire assay laboratory solutions, and dedicated analytical instruments. Serving customers in China and overseas, the company provides intelligent, automated, and digitalized inspection equipment and complete systems for third-party inspection organizations, government quality inspection departments, ports, metallurgical enterprises, and geological exploration organizations.
In addition to hammer crushers, we supply double-roll crushers, jaw crushers, sample splitting equipment, grinding equipment, and automated sample preparation lines with gantry robots. We offer customization, international supply, on-site installation and commissioning, and technical training.
If you are looking for a **laboratory hammer crusher**, coal sample preparation crushing equipment, or a complete automated mineral sample preparation system or fire assay laboratory solution, contact Qingdao Hitec for detailed HC450 hammer crusher drawings, a quotation, and supporting system solutions.