Lebanon’s coating, paint, and construction materials sectors require reliable supplies of fine mineral fillers and extenders. Feldspar is one of the most useful industrial minerals in coating production because it can improve hardness, opacity, chemical stability, and mechanical resistance while reducing formulation cost. For coating manufacturers, powder processors, and investors in Lebanon who need a feldspar grinding plant with a capacity of 10–20 tph, selecting the right mill is a critical decision. The mill must deliver consistent fineness, low contamination, stable operation, and efficient energy consumption. Shanghai Zenith Machinery Co., Ltd., an excellent manufacturer of ore grinding equipment in China, offers proven solutions for this capacity range, especially the MTW Trapezium Grinding Mill and the LM Vertical Grinding Mill.
Feldspar is a group of aluminosilicate minerals that includes orthoclase, microcline, plagioclase, and anorthite. In architectural coatings, industrial paints, powder coatings, and specialty finishes, ground feldspar is used as a functional filler and extender. It can partially replace titanium dioxide and other expensive pigments while maintaining important coating properties. Because feldspar has relatively high hardness, it contributes to scrub resistance and durability. Its chemical inertness helps the coating resist weathering, moisture, and chemical attack. Its brightness and refractive index also support opacity and whiteness in white and light-colored paints.
In coating formulations, feldspar powder can improve film build, reduce shrinkage, and enhance surface smoothness. When properly classified, it provides a narrow particle size distribution that helps control gloss, sheen, and matting. For interior and exterior paints, a well-graded feldspar filler can improve sanding properties, reduce settling, and contribute to better pigment dispersion. In powder coatings, fine feldspar can act as an inert filler that supports flow, hardness, and corrosion resistance.
The performance of feldspar in coatings depends strongly on fineness. Coarser powder may be suitable for certain primers and texture coatings, while 325 mesh or finer products are often required for high-quality architectural paints. For coating-grade filler, producers usually aim for controlled top size, low moisture, consistent whiteness, and minimal iron contamination. A grinding system must therefore combine reliable capacity with precise classification and dust collection.
A 10–20 tph feldspar grinding line in Lebanon must handle local operating conditions, including energy costs, available floor space, raw material variability, and shipping logistics. Feldspar is typically hard and abrasive, so wear parts must be durable. The mill should be able to process material with a maximum feed size of about 30–40 mm after primary crushing. The final product fineness may range from 40 μm to 45 μm, or approximately 325 mesh, depending on the coating application. Moisture control is also important. If the raw feldspar contains surface moisture, an integrated drying function can simplify the process and reduce auxiliary equipment.
Other selection criteria include capacity flexibility, automation level, maintenance access, spare parts availability, and environmental performance. A modern grinding plant should include pulse-jet dust collectors, enclosed conveying, and negative-pressure operation to protect workers and meet environmental expectations. Because Lebanon’s coating producers may require different grades, the grinding mill should allow quick adjustment of product fineness without frequent shutdowns.
Shanghai Zenith Machinery Co., Ltd. specializes in the research, development, and production of industrial powder grinding equipment. Its main products include the MTW Trapezium Grinding Mill, Ball Mill, MTM Medium-Speed Grinding Mill, Raymond Mill, LM Vertical Grinding Mill, LUM Ultrafine Vertical Mill, XZM Ultrafine Grinding Mill, and Hammer Mill. For a 10–20 tph feldspar project serving the coating industry, two models are particularly suitable: the MTW175G Trapezium Grinding Mill and the LM130K Vertical Grinding Mill.
The MTW Trapezium Grinding Mill is a patented grinding solution known for its compact structure, long service life, and eco-friendly design. It is suitable for processing materials with a maximum input size of 50 mm and can produce a final product as fine as 0.038 mm. For a 10–20 tph feldspar line, the MTW175G offers an excellent balance of capacity, fineness, and reliability. Its capacity range of 9.5–25 t/h covers the required production band, and its final size range of 1.6–0.045 mm allows producers to serve multiple coating-grade specifications.
| Model | Max. Feed Size (mm) | Final size (mm) | Capacity (t/h) | Main motor (kW) | Fan motor (kW) |
|---|---|---|---|---|---|
| MTW138Z | <35 | 1.6-0.045 | 6-17 | 90 | 110 |
| MTW175G | <40 | 1.6-0.045 | 9.5-25 | 160 | 200 |
The MTW175G is especially attractive for coating filler production because it supports stable fineness control and high throughput. Its grinding rollers and ring are designed for abrasive minerals, and the internal classification system helps remove oversized particles. The mill can be combined with an elevator, feeder, classifier, cyclone collector, pulse dust filter, and packing system to form a complete feldspar powder production line. For Lebanese producers who need a flexible plant with moderate investment and strong performance, the MTW175G is a recommended primary choice.
The LM Vertical Grinding Mill integrates five functions—crushing, grinding, powder selection, drying, and material conveying—into a single machine. It occupies a small area, produces a fine final powder, and supports eco-friendly production. For feldspar grinding at 10–20 tph, the LM130K is a strong vertical mill option. Its plate diameter is 1300 mm, its capacity is 10–28 t/h, and its output fineness can be adjusted from 170 μm to 40 μm. It accepts feed material smaller than 38 mm and uses a 200 kW main motor.
| 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 |
The LM130K is ideal for a modern, compact feldspar grinding plant. Because it can dry material during grinding, it is suitable for raw feldspar with moderate moisture. The vertical design also reduces noise and dust leakage compared with some traditional mills. Its classifier can be adjusted to produce coating-grade powder, and the system can be automated for stable operation. For a Lebanese coating producer that wants high efficiency, low maintenance, and a small footprint, the LM130K is an excellent recommendation.
Both the MTW175G and LM130K can satisfy a 10–20 tph feldspar grinding requirement, but they serve different project priorities. The MTW175G is a robust trapezium mill with a wide fineness range and proven mechanical design. It is often preferred when the producer wants a conventional, flexible grinding plant with lower initial complexity. The LM130K is a vertical mill that combines drying, grinding, and classification in one compact system. It is often preferred when space is limited, raw material moisture varies, or the operator wants a modern, automated layout.
| Criteria | MTW175G | LM130K |
|---|---|---|
| Capacity fit for 10–20 tph | 9.5–25 t/h | 10–28 t/h |
| Final fineness | 1.6–0.045 mm | 170–40 μm |
| Max feed size | <40 mm | <38 mm |
| Main motor | 160 kW | 200 kW |
| Footprint | Compact but requires auxiliary equipment | Very compact, integrated system |
| Drying function | Can be added in system design | Integrated drying capability |
| Best application | Flexible coating filler grades | Space-saving, automated production |
For many Lebanese projects, the final decision should be based on raw material moisture, required mesh size, available workshop space, electrical supply, and long-term spare parts planning. Shanghai Zenith can provide technical consultation and recommend the most suitable configuration for a specific feldspar source and coating market.
A complete 10–20 tph feldspar grinding plant usually includes raw material storage, primary crushing, screening, grinding, classification, dust collection, storage, and packing. If the feed material is large, a jaw crusher or hammer crusher reduces it to the required mill feed size. The crushed feldspar is then fed evenly into the grinding mill by an electromagnetic vibrating feeder or belt feeder. Inside the mill, the material is ground between rollers and ring or between grinding rollers and a vertical plate, depending on the selected technology.
For coating production, the finished feldspar powder should be protected from moisture and contamination. Stainless-steel contact points, magnetic separators, and regular wear-part inspection can help maintain product purity. If the coating formula requires very low iron content, additional magnetic separation after grinding may be recommended.
Quality control ensures that the ground feldspar performs consistently in paint and coating formulations. Key tests include particle size distribution, residue on sieve, whiteness, moisture content, oil absorption, pH, and iron content. A laser particle size analyzer can verify D50 and D97 values, while sieve analysis provides a practical check for oversize particles. Whiteness and brightness are important for decorative coatings, especially white and light shades. Low moisture prevents caking and improves dispersion. Oil absorption influences binder demand and coating rheology.
With the MTW175G or LM130K, producers can adjust operating parameters to meet different coating specifications. For example, a finer setting may be used for high-gloss architectural paint, while a slightly coarser setting may be suitable for primer or texture coatings. Regular sampling and laboratory testing should be integrated into the production schedule.
Shanghai Zenith provides project design, equipment manufacturing, installation guidance, commissioning support, and operator training. For clients in Lebanon, the company can help plan shipping, foundation drawings, electrical layout, and spare parts recommendations. Remote technical support and digital communication make it easier to solve operating questions quickly. Because grinding plants are long-term investments, selecting a manufacturer with strong after-sales service is as important as selecting the mill model.
Wear parts such as grinding rollers, rings, and liners should be stocked according to production intensity. A preventive maintenance plan can reduce downtime and protect product quality. Shanghai Zenith’s global experience in ore grinding equipment helps clients avoid common mistakes in feeding, classification, dust collection, and material handling.
Shanghai Zenith Machinery Co., Ltd. is an excellent manufacturer of ore grinding equipment in China and has made great achievements in the field of ultra-fine powder grinding. The company is specialized in the research, development, and production of industrial powder grinding equipment and other related devices. Its product portfolio includes the MTW Trapezium Grinding Mill, Ball Mill, MTM Medium-Speed Grinding Mill, Raymond Mill, LM Vertical Grinding Mill, LUM Ultrafine Vertical Mill, XZM Ultrafine Grinding Mill, and Hammer Mill. This wide range allows Zenith to configure a complete feldspar processing solution rather than supplying only a single machine.
For a 10–20 tph coating-grade feldspar project in Lebanon, Zenith can combine proven grinding technology with practical process design. The MTW175G and LM130K are both capable of delivering the required capacity and fineness. The final choice depends on the specific raw material, product mix, budget, and site conditions.
Feldspar is a valuable functional filler for coating production in Lebanon, and a reliable 10–20 tph grinding plant can help local manufacturers improve supply security and product quality. Shanghai Zenith offers two highly suitable solutions: the MTW175G Trapezium Grinding Mill for flexible and robust production, and the LM130K Vertical Grinding Mill for compact, integrated, and automated operation. By selecting the right mill and configuring the plant with proper crushing, classification, dust collection, and quality control, Lebanese producers can serve the coating industry with consistent, high-quality feldspar powder.
For project-specific recommendations, capacity calculations, and quotations, contact Shanghai Zenith Machinery Co., Ltd. with details of your feldspar feed size, moisture, target mesh, and coating application. The right grinding solution can turn feldspar resources into a dependable, profitable product for Lebanon’s coating market.
