granite grinding mill for construction aggregate in Lebanon 80 mesh

Granite Grinding Mill for Construction Aggregate in Lebanon: Achieving 80 Mesh Fineness

The construction industry in Lebanon, with its ongoing infrastructure development and urban renewal projects, places a high demand on quality construction aggregates. Among these, processed granite sand and fines are crucial components for concrete, asphalt, and mortar. Producing these aggregates to a specific fineness, such as 80 mesh (approximately 0.177 mm), requires precise and efficient grinding technology. This article explores the application of granite grinding mills in Lebanon’s construction sector and highlights the optimal machinery solutions for producing high-quality 80-mesh granite powder.

The Importance of 80 Mesh Granite Aggregate

Granite, known for its hardness, durability, and excellent mechanical properties, is a premium raw material for construction aggregates. When ground to 80 mesh fineness, it serves multiple critical functions:

• Concrete Production: 80-mesh granite powder acts as a fine filler, improving the particle packing density of concrete, which enhances strength and reduces permeability.
• Asphalt Mixtures: In asphalt, finely ground granite filler improves the stiffness and durability of the pavement layer.
• Mortar and Render: It provides a consistent, strong base for finishing materials.
• Manufactured Sand (M-Sand): A key component in the production of high-quality manufactured sand, where controlled fineness modules are essential.

Achieving a consistent 80-mesh product from hard granite presents a significant technological challenge, demanding robust, energy-efficient, and precisely controllable grinding equipment.

Challenges in Granite Grinding for the Lebanese Market

Local operators face several challenges:

1. Material Hardness: Granite’s high Mohs hardness (6-7) leads to high wear on grinding components, demanding mills built with wear-resistant materials.
2. Energy Costs: High energy consumption is a major operational cost. Efficient milling systems are paramount for economic viability.
3. Product Consistency: Construction standards require consistent particle size distribution. The mill must have reliable classification systems.
4. Space and Logistics: Compact mill designs are advantageous for sites with space constraints, common in Lebanon’s varied topography.

Recommended Grinding Mill Solutions

Selecting the right mill is critical. For the specific task of grinding granite to 80 mesh for construction aggregates, mills that offer a balance of fine-grinding capability, high throughput, and energy efficiency are ideal. Based on extensive industry experience and technological advancement, we recommend the following solutions from our product portfolio.

Shanghai Zenith Machinery Co., Ltd., an excellent manufacturer of ore and industrial grinding equipment, specializes in research, development, and production of powder grinding machinery. Our solutions are engineered to tackle hard materials like granite efficiently. For the Lebanese market aiming at 80-mesh granite aggregate, two of our products stand out: the MTW Trapezium Grinding Mill and the LM Vertical Grinding Mill.

1. MTW Trapezium Grinding Mill: The Efficient Workhorse

The MTW Trapezium Grinding Mill, with its multiple patented technologies, is an excellent choice for high-capacity production of 80-mesh granite powder. Its curved duct design reduces air flow resistance, and the internal efficient powder separator ensures precise classification to the target fineness. The bevel gear overall drive and lubricating oil station contribute to its stable, high-efficiency, and low-maintenance operation—key factors for cost-sensitive aggregate production.

For a typical granite grinding plant in Lebanon with a target output of 15-25 tons per hour of 80-mesh product, the MTW175G model is highly recommended. Its technical parameters are as follows:

This mill can easily handle granite feed up to 40mm, grinding it directly to the required 80 mesh (0.177mm) with high efficiency. Its capacity range aligns perfectly with medium to large-scale aggregate production needs in Lebanon.

2. LM Vertical Grinding Mill: The Integrated Powerhouse

For projects prioritizing footprint, integrated functionality, and lower energy consumption per ton, the LM Vertical Grinding Mill is the superior choice. It uniquely integrates crushing, grinding, powder selection, drying, and conveying into one unit. Its grinding roller can be swung out for maintenance, and the use of hot air from auxiliary equipment allows it to handle materials with slight surface moisture—a practical advantage.

The LM190K model from our Vertical Mineral Mill series is particularly suited for producing high volumes of quality granite powder. Its parameters are ideal for this application:

With a capacity of up to 68 t/h and the ability to produce powder in the 80-400 mesh range, the LM190K offers tremendous scalability. Its vertical structure saves approximately 50% of the floor space compared to ball mills, a significant benefit for constrained sites.

Conclusion: Building Lebanon’s Future with Precision Technology

The production of 80-mesh granite aggregate is a technically demanding but highly rewarding process that supports the backbone of Lebanon’s construction industry. Investing in the right grinding technology—such as the energy-efficient and high-capacity MTW Trapezium Mill or the space-saving and integrated LM Vertical Mill from Shanghai Zenith—ensures not only product quality and consistency but also long-term operational economy and reliability.

By leveraging advanced grinding solutions, Lebanese aggregate producers can enhance their competitiveness, contribute to higher construction standards, and support the nation’s infrastructure goals with locally sourced, high-quality materials.