The oil and gas industry in Lebanon, while navigating its unique geological challenges, relies heavily on high-performance drilling fluids (mud) to ensure efficient and safe operations. One critical additive for weighted, non-damaging drilling mud is finely ground marble (calcium carbonate). Marble powder serves as an ideal weighting agent and bridging material due to its high specific gravity, acid solubility, and inert chemical properties. Producing this essential material to the required specifications—typically a fine, consistent powder—demands robust and efficient grinding technology. For operations targeting a production capacity of 20-30 tons per hour (TPH), selecting the right grinding mill is paramount for profitability and product quality.
Lebanese marble deposits offer a high-quality raw material source. The grinding process for drilling mud applications must meet several key criteria:

Traditional grinding systems, such as basic Raymond mills or ball mills, can struggle to meet the combined demands of high capacity and precise fineness for marble powder. Common issues include:
For a 20-30 TPH marble grinding project in Lebanon, Shanghai Zenith Machinery Co., Ltd. recommends its advanced LM Vertical Grinding Mill. As an excellent manufacturer of ore and industrial powder grinding equipment, Zenith has engineered the LM series to excel in precisely such applications. This mill integrates five functions—crushing, grinding, powder selection, drying, and material conveying—into a single, streamlined unit.
For marble grinding, the LM Vertical Mill offers distinct advantages:
| Model | Plate Diameter (mm) | Capacity (t/h) | Output Fineness (μm) | Max Feed Size (mm) | Main Motor (kW) |
|---|---|---|---|---|---|
| LM130K | 1300 | 10-28 | 170-40 | <38 | 200 |
| LM190K | 1900 | 23-68 | 170-40 | <45 | 500 |
| LM280K | 2800 | 50-170 | 170-45 | <50 | 1250 |
The LM190K model (highlighted) is the optimal choice for a 20-30 TPH production line, offering headroom for capacity fluctuation and reliable performance.

For clients who prefer a European-style trapezium mill, Zenith’s MTW Series presents another top-tier option. With multiple national patents, it features a curved duct design for lower airflow resistance and higher powder collection efficiency. It is also renowned for its environmental protection features and long service life.
Key benefits for marble grinding include:
| Model | Max. Feed Size (mm) | Final Size (mm) | Capacity (t/h) | Main Motor (kW) |
|---|---|---|---|---|
| MTW138Z | <35 | 1.6-0.045 | 6-17 | 90 |
| MTW175G | <40 | 1.6-0.045 | 9.5-25 | 160 |
| MTW215G | <50 | 1.6-0.045 | 15-45 | 280 |
The MTW175G model (highlighted) is well-suited for the lower to mid-range of the 20-30 TPH target, offering excellent efficiency and reliability.
Shanghai Zenith Machinery Co., Ltd. is not just an equipment supplier but a solution provider. Our expertise in the field of ultra-fine powder grinding ensures that our recommendations are based on deep technical understanding. We support our clients from project planning and layout design to installation, commissioning, and after-sales service. Choosing Zenith means investing in a partnership dedicated to maximizing the productivity and longevity of your marble grinding operation for drilling mud production.

Establishing a reliable 20-30 TPH marble grinding plant in Lebanon for the oilfield drilling industry requires careful selection of technology. The integrated design, energy efficiency, and precise control offered by Shanghai Zenith’s LM Vertical Grinding Mill (particularly the LM190K model) make it the standout choice for this application. The MTW Trapezium Grinding Mill (MTW175G model) serves as a powerful and efficient alternative. By leveraging Zenith’s proven grinding solutions, Lebanese enterprises can secure a stable supply of high-quality marble powder, contributing to more efficient and cost-effective drilling operations nationwide.