Carbon black is a critical functional filler and colorant in the plastics industry. In Tanzania, the growing demand for plastic pipes, packaging films, cable insulation, footwear, household products, crates, and automotive parts has created steady demand for high-quality carbon black filler. For many plastic applications, 80 mesh is a practical and economical specification. To produce carbon black powder at 80 mesh with consistent quality, processors need a reliable grinding mill, an effective classification system, and strong dust control. Shanghai Zenith Machinery Co., Ltd. provides industrial powder grinding equipment suitable for this application, including the MTW Trapezium Grinding Mill and the XZM Ultrafine Grinding Mill.
In powder processing, mesh is a screen size used to describe particle fineness. 80 mesh corresponds to approximately 180 microns. For plastic filler applications, 80 mesh is often selected because it offers a balance between dispersion, flowability, production capacity, and cost. It is fine enough to be distributed evenly in polyethylene, polypropylene, PVC, polystyrene, and masterbatch compounds, but coarse enough to maintain high grinding output and lower energy consumption. If the carbon black is too coarse, plastic products may show black specks, poor surface finish, weak UV protection, or inconsistent mechanical performance. If it is too fine, dust, agglomeration, and higher production costs can become major issues. Therefore, a stable 80 mesh product with controlled particle size distribution is important for Tanzania plastic filler producers.
Tanzania has a growing plastics processing sector that serves local construction, agriculture, packaging, and consumer markets. Carbon black is used as a filler, reinforcing agent, UV stabilizer, and black pigment. Many manufacturers use carbon black masterbatch or direct filler compounds. For these applications, the carbon black powder must be dry, free-flowing, and well dispersed. The raw material may come from virgin carbon black or recovered carbon black from tire recycling. Recovered carbon black often contains ash, grit, and moisture, so grinding and classification are essential to meet 80 mesh specifications. Proper grinding also improves dispersion and reduces the amount of black specks in the final plastic product.
Carbon black is not an easy material to grind. It has very low bulk density, high surface area, and a strong tendency to dust and adhere to equipment. It may also contain agglomerates that require deagglomeration. Overheating during grinding can affect surface chemistry and dispersion. Dust control is essential for worker safety and environmental compliance. In Tanzania, coastal humidity and variable power quality can create additional challenges. A suitable grinding system must therefore include uniform feeding, effective classification, closed-loop negative pressure, pulse jet dust collection, and reliable wear parts. The mill should be easy to maintain because spare parts logistics can affect uptime and production cost.
Several types of mills can reduce carbon black particle size, but not all are efficient at 80 mesh. Ball mills are adaptable but often consume high energy and may introduce contamination. Hammer mills are better for coarse crushing and cannot consistently produce fine 80 mesh powder. Traditional Raymond mills can work, but modern trapezium mills offer higher capacity, better classification, and lower energy consumption. For Tanzania plastic filler producers, the MTW Trapezium Grinding Mill from Shanghai Zenith Machinery is an excellent choice for 80 mesh carbon black. If a company also needs ultrafine carbon black for premium masterbatch, the XZM Ultrafine Grinding Mill is a strong optional solution.
The MTW Trapezium Grinding Mill is a patented grinding equipment known for compact structure, long service life, and eco-friendly design. It is suitable for materials with maximum input size up to 50 mm and can produce final products as fine as 0.038 mm. Because 80 mesh is approximately 0.18 mm, the MTW mill can easily achieve this specification by adjusting the classifier and operating parameters. For carbon black, actual capacity will depend on bulk density, moisture, feed size, and required passing rate. The table below shows the main technical parameters of the MTW series.
| Model | Max. Feed Size (mm) | Final size (mm) | Capacity (t/h) | Main motor (kW) | Fan motor (kW) |
|---|---|---|---|---|---|
| MTW110 | <30 | 1.6-0.045 | 3-9 | 55 | 55 |
| MTW110Z | <30 | 1.6-0.045 | 3-10 | 55 | 55 |
| MTW138Z | <35 | 1.6-0.045 | 6-17 | 90 | 110 |
| MTW175G | <40 | 1.6-0.045 | 9.5-25 | 160 | 200 |
| MTW215G | <50 | 1.6-0.045 | 15-45 | 280 | 315 |
For a typical 80 mesh carbon black plastic filler project in Tanzania, we recommend the MTW138Z or MTW175G. The MTW138Z offers a capacity range of 6-17 t/h with a 90 kW main motor and 110 kW fan motor. It is suitable for medium-scale production and can be integrated with a pulse dust collector and air classifier. The MTW175G provides 9.5-25 t/h with a 160 kW main motor and 200 kW fan motor, making it a good option for larger plants or companies planning future expansion. Because carbon black is light and dusty, the capacity may be lower than the nominal range for limestone. Our engineers can calculate the expected output after testing material properties.
If the Tanzanian market requires carbon black finer than 80 mesh, such as 325 mesh or 1250 mesh for high-end masterbatch, conductive plastics, or specialty compounds, the XZM Ultrafine Grinding Mill is recommended. The XZM mill is widely used for superfine powder production and can process soft or medium-hard materials with moisture content below 6%. It achieves an output fineness of 325-2500 mesh. Although 80 mesh production is more economical with the MTW mill, the XZM series provides a future-ready option for product diversification. The table below lists key parameters.
| Model | Working diameter (mm) | Max feed size (mm) | Final size (mesh) | Output (kg/h) | Main motor power (kW) |
|---|---|---|---|---|---|
| XZM221 | Φ800 | ≤20 | 325-2500 | 500-4500 | 75 |
| XZM268 | Φ1680 | ≤20 | 325-2500 | 5000-25000 | 315 |
For a plant focused strictly on 80 mesh carbon black filler, the MTW Trapezium Grinding Mill is the more suitable and cost-effective choice. The XZM Ultrafine Grinding Mill can be added later as a second production line for fine powder grades. This two-stage strategy allows Tanzania producers to serve both standard plastic filler customers and premium masterbatch customers.
A complete 80 mesh carbon black grinding plant usually includes a raw material silo, screw feeder, MTW grinding mill, dynamic classifier, cyclone collector, pulse bag dust collector, centrifugal fan, air lock, vibrating screen, and packing machine. Optional equipment includes a dryer, magnetic separator, and inert gas system. The system should operate under negative pressure to prevent dust leakage. Carbon black dust can be combustible, so grounding, explosion venting, and proper filter selection are important. For Tanzania, we recommend designing the plant with corrosion-resistant components if the installation is near the coast. The grinding area should be dry and well ventilated. Uniform feeding is critical because sudden surges can overload the mill and reduce product quality.
To produce consistent 80 mesh carbon black, operators should control feed rate, classifier speed, air volume, and mill temperature. The classifier speed is the primary adjustment for final particle size. A vibrating sieve or sieve shaker can verify that at least 95% or 100% of the product passes the 80 mesh screen, depending on customer requirements. Moisture should be kept low, preferably below 6%, to avoid clogging and poor flow. Regular inspection of grinding rollers, rings, and classifier blades will reduce downtime. The final product should be stored in moisture-proof bags and protected from contamination. For plastic filler use, dispersion testing and blackness measurement are recommended before delivery to masterbatch or pipe manufacturers.
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. We specialize in the research, development, and production of industrial powder grinding equipment and related devices. Our 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 carbon black plastic filler projects in Tanzania, we can assist with material testing, equipment selection, flow design, capacity calculation, dust control planning, installation guidance, commissioning support, and spare parts recommendations. Our goal is to help customers achieve stable 80 mesh production with low operating cost and reliable performance.
Carbon black is an important plastic filler and colorant in Tanzania, and 80 mesh is a practical specification for many plastic and masterbatch applications. The right grinding mill must handle carbon black dust, low bulk density, and strict particle size requirements. Shanghai Zenith Machinery Co., Ltd. recommends the MTW Trapezium Grinding Mill as the primary solution for 80 mesh carbon black production. The MTW138Z and MTW175G are excellent models for medium and large capacity plants. For future ultrafine production, the XZM Ultrafine Grinding Mill offers a reliable upgrade path. With proper plant design, dust control, and quality control, Tanzania producers can supply high-quality carbon black filler to the growing plastics industry.
