The coating industry in Bangladesh is experiencing significant growth, driven by rapid urbanization, infrastructure development, and a booming manufacturing sector. A critical component in paint, ink, plastic, and rubber production is carbon black—a fine powder used as a pigment and reinforcing agent. To achieve the desired properties in final products, such as UV resistance, conductivity, and deep coloration, carbon black must be ground to a very fine and consistent particle size. This necessitates reliable, efficient, and high-capacity grinding technology. For production lines targeting a throughput of 20 to 30 tons per hour (TPH), selecting the right grinding mill is paramount for operational success and product quality.
Grinding carbon black presents unique challenges. Its abrasive nature can cause rapid wear on grinding components. Furthermore, achieving a uniform ultra-fine powder (often requiring a fineness between 325 to 2500 mesh) while maintaining high throughput demands advanced milling technology. Energy consumption, system footprint, and dust control are also critical considerations for cost-effective and environmentally compliant production in Bangladesh.
When specifying a mill for this capacity range, several factors must be evaluated:
For a robust, high-capacity solution ideal for the Bangladeshi market, Shanghai Zenith Machinery Co., Ltd. recommends its advanced LM Vertical Grinding Mill. This mill is particularly well-suited for processing non-metallic minerals like carbon black due to its integrated design and high grinding efficiency.
The LM Vertical Mill integrates five functions—crushing, grinding, powder selection, drying, and material conveying—into a single, compact unit. This not only saves valuable factory floor space but also enhances thermal efficiency, which is beneficial if a drying phase is required. Its grinding roller and plate are made from high-wear-resistant materials, making it durable against abrasive materials like carbon black.
For a 20-30 TPH carbon black grinding line, the LM190K or LM220K models from our Vertical Mineral Mill series would be an excellent fit. Their parameters are detailed below:
| Model | Plate Diameter (mm) | Capacity (t/h) | Output Fineness (μm) | Max Feed Size (mm) | Main Motor (kW) |
|---|---|---|---|---|---|
| LM190K | 1900 | 23-68 | 170-40 | <45 | 500 |
| LM220K | 2200 | 35-50* | 170-45 | <50 | 630-710 |
*Note: Capacity can be adjusted within the range based on final product fineness requirements. The LM220K model, with its larger grinding plate and powerful motor, is ideally positioned to handle the upper end of the 20-30 TPH spectrum with stability and headroom for future expansion.
For coating producers who require an even finer product, potentially exceeding 1000 mesh, while still maintaining significant output, Zenith’s XZM Ultrafine Grinding Mill presents a compelling alternative. This mill is specifically engineered for superfine powder production and can achieve an impressive fineness range of 325-2500 mesh.
While its nominal capacity in kg/h may seem different, the high-end models are capable of substantial tonnage for ultra-fine powders. For a 20-30 TPH line targeting finer specs, multiple XZM units can be configured in parallel, or the larger XZM268 model can be evaluated for its high-output potential in the 5-25 TPH range, depending on the target fineness.
| Model | Working Diameter (mm) | Max Feed Size (mm) | Final Size (mesh) | Output (kg/h) | Main Motor Power (kW) |
|---|---|---|---|---|---|
| XZM268 | Φ1680 | ≤20 | 325-2500 | 5000-25000 | 315 |
Shanghai Zenith Machinery Co., Ltd. is a leading manufacturer of industrial grinding equipment with decades of experience. Our strength lies in our specialized R&D, which produces mills with multiple patents, ensuring high efficiency, reliability, and environmental friendliness. We offer comprehensive support, from initial consultation and plant design to installation, training, and after-sales service, which is crucial for successful project implementation in Bangladesh.
Meeting the 20-30 TPH production target for carbon black grinding in coating manufacturing requires a mill that balances high capacity, fine grinding capability, and operational economy. The LM Vertical Grinding Mill series from Shanghai Zenith provides a vertically integrated, space-saving, and highly efficient solution perfectly matched to this need. For applications demanding extreme fineness, the XZM Ultrafine Grinding Mill offers unparalleled precision. By investing in the right grinding technology, coating producers in Bangladesh can ensure consistent product quality, reduce production costs, and strengthen their competitive position in a growing market.
