Kaolin, also known as china clay, is a naturally occurring soft white clay that has become an essential mineral filler in the plastics industry. When processed to a fine powder, kaolin enhances the mechanical properties of plastic products, improves opacity, reduces shrinkage, and lowers production costs. In the Philippines, the growing packaging, automotive, and construction sectors are driving strong demand for high-quality plastic fillers. For a production line targeting 20 to 30 tons per hour (tph) of kaolin powder destined for plastic filler applications, selecting the right grinding mill is critical to achieving consistent fineness, high throughput, and low operating costs.
The Philippine plastic industry has been expanding steadily, with local manufacturers increasingly preferring domestic sources of kaolin filler to reduce import dependency. A typical plastic filler plant requires a grinding system capable of producing 20–30 tph of kaolin with a fineness of 325 mesh (44 microns) or finer, as this particle size range offers optimal dispersion and reinforcement in polypropylene, polyethylene, and PVC compounds. The mill must also handle the natural moisture content of kaolin (usually 5–10%) and deliver consistent product quality with minimal downtime. Given these constraints, the equipment must be robust, energy-efficient, and easy to maintain.
When choosing a kaolin grinding mill for plastic filler applications, several factors must be evaluated:
Shanghai Zenith Machinery Co., Ltd., with decades of experience in ore grinding equipment, offers several advanced solutions that perfectly match these requirements.
Shanghai Zenith Machinery Co., Ltd. is a leading Chinese manufacturer specializing in industrial powder grinding equipment. The company has made remarkable achievements in ultra-fine powder grinding, serving customers worldwide. Their product line includes MTW Trapezium Mills, LM Vertical Mills, Ball Mills, and many others. For the specific capacity of 20–30 tph kaolin filler production, two models stand out: the MTW215G Trapezium Grinding Mill and the LM190K Vertical Grinding Mill. Both machines have proven track records in similar applications across Asia.
The MTW series is a flagship product of Zenith, known for its multi-patented design, compact structure, and environmental friendliness. The MTW215G model is particularly suitable for medium to large-scale grinding projects. It can process kaolin with a maximum feed size of 50 mm and produce a final product as fine as 0.038 mm (400 mesh). The capacity range of 15–45 t/h comfortably covers the required 20–30 tph. Its trapezoidal grinding ring and roller design improve grinding efficiency by 30% compared to traditional Raymond mills, while the built-in classifier ensures a steep particle size distribution, essential for filler quality.
| Parameter | Value |
|---|---|
| Max Feed Size (mm) | <50 |
| Final Product Size (mm) | 1.6 – 0.038 |
| Capacity (t/h) | 15 – 45 |
| Main Motor Power (kW) | 280 |
| Fan Motor Power (kW) | 315 |
| Overall Dimension (L×W×H, m) | 13.9 × 7.2 × 11.8 |
With its advanced European design, the MTW215G reduces vibration and noise, making it an ideal choice for plants located near residential areas in the Philippines. The pneumatic conveying system and pulse bag filter ensure a dust-free working environment. For a 20–30 tph kaolin filler line, this mill often operates at 70–80% capacity, allowing room for future expansion.
For customers who prioritize a smaller footprint and integrated drying, the LM Series Vertical Grinding Mill is an excellent alternative. The LM190K model combines crushing, grinding, drying, and powder selection in one unit. Its vertical structure occupies only about 50% of the floor space required by a ball mill. The capacity range of 23–68 t/h easily handles the 20–30 tph demand, and the product fineness can be adjusted between 170–40 μm (80–400 mesh). The mill’s internal classifier provides precise control, ensuring that the kaolin powder meets the narrow particle size specification required by plastic filler manufacturers.
| Parameter | Value |
|---|---|
| Plate Diameter (mm) | 1900 |
| Capacity (t/h) | 23 – 68 |
| Output Fineness (μm) | 170 – 40 |
| Max Feed Size (mm) | <45 |
| Main Motor Power (kW) | 500 |
| Overall Dimension (L×W×H, m) | 8.3 × 5.8 × 14.2 |
The LM190K is particularly effective when processing kaolin with higher moisture content, as the internal hot air system can simultaneously dry and grind, eliminating the need for a separate dryer. The roller and grinding table are lined with high-chrome materials, offering long service life even when grinding abrasive kaolin. This mill is already in use in several kaolin processing plants in Southeast Asia, delivering consistent throughput and low maintenance costs.
Both the MTW215G and LM190K are capable of achieving 20–30 tph kaolin production for plastic filler. The choice depends on specific site conditions:
Zenith’s experienced engineers can conduct a full feasibility study, including raw material testing and site layout design, to help Philippine customers make the best decision.
Meeting the 20–30 tph kaolin grinding requirement for plastic filler production in the Philippines is a demanding task that calls for reliable, efficient, and cost-effective equipment. Shanghai Zenith Machinery’s MTW215G Trapezium Grinding Mill and LM190K Vertical Grinding Mill both deliver outstanding performance in this application. With their robust construction, energy-saving features, and proven track records, these mills will help Philippine processors achieve high-quality filler powder while minimizing operational costs. For a tailored solution and detailed quotation, contact Zenith’s local representative or visit our official website.
