- (86) 18137197750
- manyijixie@outlook.com
- 18137197750
A Mining Jaw Crusher is a heavy-duty, robust crushing machine engineered specifically for the primary crushing of hard and abrasive minerals and ores, such as granite, iron ore, copper ore, gold ore, and manganese. It is the workhorse of any mineral processing circuit, designed to handle the largest feed sizes and toughest materials directly from the mine face. Its core function is to perform the initial size reduction, breaking down massive run-of-mine (ROM) rocks into manageable sizes for further processing in secondary crushers or grinding mills. Their rugged construction and simple, reliable design make them indispensable in quarrying, mining, and aggregate production.
Our crushers are built to withstand the most demanding mining applications with features designed for maximum uptime and performance:
Extremely Robust Frame: Constructed from high-strength, welded steel plate to handle the incredible stress of crushing hard rock, ensuring long-term structural integrity.
High-Capacity & Deep Crushing Chamber: Designed to accept large feed sizes and deliver high tonnage outputs, maximizing your primary crushing stage efficiency.
Durable Wear Parts: Equipped with massive jaw plates made from premium manganese steel alloys, offering exceptional resistance to abrasion and impact.
Advanced Safety Systems: Includes hydraulic toggle relief systems to automatically protect the crusher from uncrushable material (e.g., tramp iron), preventing serious mechanical damage.
Optimized Kinematics: The crushing chamber design and jaw motion are engineered for high reduction ratios, ensuring effective nipping and crushing of the material.
Investing in our mining jaw crusher translates to direct benefits for your operation’s bottom line:
Unmatched Reliability: Simple, proven design minimizes the number of moving parts, leading to fewer failures and maximum availability.
High Efficiency & Low Operating Cost: Powerful crushing action and robust construction result in more tons crushed per hour at a lower cost per ton.
Versatility: Capable of handling a wide range of ore types, from extremely hard and abrasive to softer rocks, making them a flexible solution for any mine site.
Ease of Maintenance: Designed with serviceability in mind. Many components are easily accessible, and jaw plates can be replaced relatively quickly to minimize downtime.
Strong Return on Investment (ROI): Their durability and efficiency ensure a long service life and high productivity, providing one of the best ROIs in the processing plant.
The working principle is based on compressive force. The crusher consists of two jaw dies: a fixed jaw and a movable jaw. The movable jaw moves in an elliptical motion against the fixed jaw.
Feed: The raw material (ROM ore) is fed into the top of the crusher from the mine dump truck or loader.
Crushing: As the movable jaw moves towards the fixed jaw, the rock is compressed and crushed. The rock remains in the crushing chamber until it is small enough to fall through the bottom opening.
Discharge: The crushed product, now at a smaller size, exits through the bottom gap, known as the Closed Side Setting (CSS). The size of the CSS determines the final product size.
This cyclical motion creates a highly effective “chewing” action that is perfect for breaking large, hard rocks.
Selecting the correct crusher is critical for optimizing your circuit. Key factors include:
Material Characteristics: Understand the hardness, abrasiveness, moisture content, and maximum feed size of your ore. This is the most important factor.
Required Capacity (TPH): Determine the tons per hour you need to process to meet your production goals.
Feed Size vs. Product Size: Know the largest size of rock you will feed it and the desired size of the output material after crushing.
Stationary or Mobile Setup: Decide if a fixed plant (for a large, permanent mine) or a mobile/track-mounted jaw crusher (for smaller deposits or frequent relocation) is needed.
Power Availability: Ensure your site can provide the necessary electrical power for the crusher’s motor.
We offer a comprehensive range of models to suit all mining requirements:
Model MJ-90 & MJ-110: Ideal for medium-capacity operations and softer ores. Feed openings from 900x600mm to 1100x850mm.
Model MJ-130 & MJ-160: Our most popular range for large-scale hard rock mining. High-capacity workhorses with feed openings from 1300x1000mm to 1600x1200mm.
Model MJ-200: For the most demanding, high-tonnage applications. Designed for the largest mines with feed openings exceeding 2000x1500mm.
Custom Engineered Solutions: We can design and manufacture crushers to meet specific customer requirements for unique applications or existing plant layouts.
To ensure peak performance and longevity:
Correct Feed: Ensure the feed is well-distributed across the full width of the jaw plates and that the size does not exceed the crusher’s design capacity.
Avoid Metal Contamination: Implement effective measures (like metal detectors and magnets) to prevent tramp metal from entering the crushing chamber, which can cause severe damage.
Regular Lubrication: Adhere strictly to the lubrication schedule for bearings and other moving parts. This is the lifeblood of the machine.
Monitor Wear Parts: Regularly check and measure the jaw plates for wear. Rotate or replace them in a timely manner to maintain crushing efficiency and product grading.
Monitor Crusher Parameters: Keep an eye on power draw, crushing pressure, and product size to identify potential issues early.
We provide a complete 360° support package to guarantee your success:
Expert Application Analysis: Our engineering team helps you select the perfect model and configuration for your specific ore body and production goals.
Global Shipping & Installation Support: We manage logistics to any global location and can provide supervisory services for installation and commissioning.
Extensive After-Sales Support: Includes comprehensive operator and maintenance training, detailed manuals, and a 24/7 technical support hotline.
Genuine Wear & Spare Parts: We maintain a global inventory of genuine wear parts (jaw plates, toggle seats, bearings) to ensure fast delivery and optimal performance.
Preventive Maintenance Programs: Customized service plans to help you schedule maintenance, predict wear life, and avoid unplanned downtime.
Field Service & Repairs: Our certified technicians can be dispatched to your site anywhere in the world for emergency repairs, inspections, and major overhauls.
