150x250mm Laboratory Jaw Crusher for Medium Hard Material Crushing and Sample Preparation

Product Overview

This laboratory jaw crusher is designed for efficient medium and fine crushing of brittle materials with medium hardness. Employing a curved compression crushing method, two opposing wear-resistant jaw plates exert immense force to break feed material into uniform fragments. The resulting particle shape is predominantly flaky, which is ideal for subsequent grinding or direct analysis in many mineral processing workflows. With a feed opening of 150×250 mm, this unit accommodates samples up to 125 mm in size, reducing them to a final discharge size of less than 45 mm. Its sealed feed and discharge ports minimize dust escape, making it a clean and safe addition to any analytical lab.

Primarily utilized in metallurgical, mining, geology, coal, and coke laboratories, this crusher excels at sample preparation for XRF, ICP, and other instrumental analysis. It efficiently processes ores, minerals, slags, ceramics, and similar materials with compressive strengths below 80 MPa. The robust design ensures reliable operation even under continuous duty cycles, while the simplicity of its mechanical structure allows for rapid cleaning between samples—critical for avoiding cross-contamination in high-throughput labs.

Engineered for durability and low maintenance, this crusher features heavy-duty bearings, precision-machined frame components, and easily replaceable jaw plates. Its compact footprint enables installation on a standard laboratory bench or a dedicated stand. Operators appreciate the straightforward adjustment of the discharge gap, which can be set to achieve the desired product size within the specified range. Backed by decades of engineering expertise, this system delivers consistent, repeatable results, empowering labs to meet stringent quality control standards.

Key Features

• Curved Compression Crushing Principle: Unlike conventional jaw crushers, this unit utilizes an optimized curved jaw profile that enhances compression and reduces slippage, resulting in higher throughput and more uniform particle size distribution. The eccentric motion of the movable jaw generates both compressive and shear forces, efficiently fracturing brittle materials while minimizing dust generation.
• Advanced Wear-Resistant Jaw Plates: Fabricated from a proprietary high-manganese alloy, the fixed and movable jaw plates offer exceptional abrasion resistance. Their reversible design doubles the service life, and the quick-release clamping system allows replacement in minutes, significantly reducing downtime during busy operating periods.
• Integrated Dust Sealing System: Both the feed hopper and discharge chute are equipped with flexible sealing elements that effectively contain dust and fines. This feature not only maintains a clean work environment but also prevents sample loss, ensuring that the entire material batch is recovered for accurate mass balance calculations.
• Robust Mainframe Construction: The crusher body is fabricated from stress-relieved, heavy-gauge steel plates, providing a vibration-free platform that ensures long-term structural integrity. Precision-aligned bearing housings and a dynamically balanced flywheel contribute to smooth, quiet operation suitable for laboratory settings.
• Simple Discharge Gap Adjustment: A convenient external adjustment mechanism allows the operator to set the discharge opening without disassembling the crusher. This enables rapid changes between different product size specifications, accommodating a variety of analytical requirements in a single shift.
• Overload Protection Mechanism: A shear pin in the drive system protects the crusher from damage caused by uncrushable objects such as tramp iron or tool steel. In the event of overload, the pin shears instantly, stopping the drive and preventing costly mechanical failures—an essential safety feature for shared laboratory environments.
• Low Maintenance Design: All lubrication points are centralized and easily accessible, requiring only routine greasing with standard lithium-based grease. The simple hinge mechanism of the jaw plates and the bolt-on guard panels make inspection and cleaning straightforward, even for operators with minimal technical training.
• Versatile Material Handling: This crusher is specified for brittle materials with compressive strengths up to 80 MPa, covering common lab samples like limestone, granite, basalt, quartz, and ferroalloys. It is not suitable for materials with high moisture content (>6%) or ductile samples, which may cause clogging.
• Energy-Efficient Operation: Driven by a 5.5 kW high-efficiency electric motor, the crusher delivers up to 4 tons per hour while consuming minimal power. The motor is compatible with standard laboratory power supplies (50/60 Hz), simplifying installation in existing facilities.
• Compact and Portable: With a footprint smaller than a standard lab bench, this unit can be easily relocated to different workstations or taken to field sites. The integrated base frame includes mounting holes for secure bolting, but the heavy-duty construction often allows operation without permanent fastening.

Applications

The versatility of this laboratory jaw crusher is demonstrated across a broad spectrum of industries and sample types:

Technical Specifications

Our laboratory jaw crusher family comprises six models, each engineered to match specific throughput and particle size requirements. The model PP-AS09-150x250 featured on this page strikes an optimal balance between compactness and capacity, making it a popular choice for medium-duty laboratory applications. The technical parameters below are based on crushing medium-hard, brittle materials with a bulk density of approximately 1.6 t/m³. Actual performance may vary with material properties.

All models share the same curved compression crushing principle, sealed design, and easy-maintenance features, ensuring a consistent operational experience across the range. When selecting a crusher, consider the maximum feed particle size in your sample stream and the desired capacity to match your workflow.

Why Choose This Product

• Industry-Proven Durability: With a history of successful installations in demanding metallurgical and mining labs worldwide, this crusher has demonstrated its ability to maintain performance over decades of service. The heavy-gauge steel frame and oversized bearings are designed to withstand the shocks and vibrations inherent in jaw crushing, delivering peace of mind to quality managers.
• Precision Particle Size Control: The adjustable discharge gap and optimized jaw profile enable fine-tuning of the product size within the <45 mm range. This level of control is essential for meeting the strict sample preparation protocols required by international testing standards such as ASTM and ISO.
• Low Operational Costs: The combination of long-lasting consumable parts, energy-efficient motor, and minimal maintenance downtime results in a total cost of ownership that is among the lowest in its class. The reversible jaw plates effectively double the wear life, while the simple design reduces the need for specialized service personnel.
• Clean and Safe Operation: Integrated dust sealing, quiet operation, and overload protection address the key safety and contamination concerns in analytical labs. The unit complies with relevant machinery directives, and optional certifications can be provided upon request to satisfy specific regulatory environments.
• Comprehensive Support and Customization: Backed by an experienced engineering team, we offer customized hopper designs, discharge chutes, and mounting configurations to integrate seamlessly with your existing sample handling infrastructure. Prompt after-sales support, including spare parts delivery and remote troubleshooting, ensures your uptime remains high.

Contact us for a detailed quote or to discuss how this crusher can be tailored to your unique sample preparation challenges.