In recent years, the agricultural and animal feed industries in Canada have shown increasing interest in natural additives like diatomite. Diatomite, also known as diatomaceous earth, is a unique sedimentary rock composed mainly of fossilized remains of diatoms, a type of microalgae. Its high porosity, adsorption capacity, and chemical stability make it an excellent additive for feed applications. The processing of diatomite into ultrafine powder—especially achieving a fineness of 325 mesh—requires advanced and reliable grinding technology. Shanghai Zenith Machinery Co., Ltd., a leading Chinese manufacturer of ore and mineral grinding equipment, provides innovative solutions that ensure high productivity, refined product quality, and environmental sustainability.
Diatomite serves multiple roles in the animal feed industry. Its microporous structure provides excellent absorbent properties, making it useful for moisture and toxin removal in feed mixtures. When finely ground, diatomite aids digestion, enhances nutrient absorption, and can act as a natural anti-caking and flow-improving agent. The 325-mesh fineness is particularly suitable for feed additive applications, as it ensures uniform blending and bioavailability in feed formulations for poultry, cattle, and aquaculture.

For diatomite to fully express its beneficial characteristics, proper grinding is critical. At 325 mesh, the material achieves a particle size distribution that optimizes performance as a feed additive—offering a balance between surface area and flowability. Coarser particles may not disperse evenly, reducing effectiveness, while ultrafine powders beyond 1000 mesh may present handling challenges and unnecessary energy costs. Thus, achieving a consistent 325 mesh fineness requires robust, precision-engineered grinding mills that operate efficiently and economically under steady conditions.
Shanghai Zenith Machinery Co., Ltd. has accumulated rich experience in the field of industrial powder grinding. The company’s portfolio includes multiple advanced grinding mills such as the MTW Trapezium Grinding Mill, LM Vertical Grinding Mill, LUM Ultrafine Vertical Mill, and XZM Ultrafine Grinding Mill. Over decades, Zenith has created solutions that meet the fineness, throughput, and sustainability needs of modern industries, especially for ultrafine applications like diatomite grinding.
For producing diatomite powder for feed additives in the 325 mesh range, the XZM Ultrafine Grinding Mill and the LM Vertical Fine-powder Grinding Mill are ideal choices. Both equipment models deliver consistent performance, high efficiency, and environmentally friendly operation tailored for continuous industrial production in Canada and elsewhere.
The XZM Ultrafine Grinding Mill from Zenith is designed for ultrafine powder production with a capacity to achieve 325–2500 mesh fineness. It is especially suitable for soft and medium-hard minerals like diatomite. Its advanced design ensures minimal vibration, reduced noise, and low investment costs. The integrated classifier guarantees precise particle size control, making it ideal for animal feed additive production in Canada.
| 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 |
This series not only ensures a narrow particle size distribution but also features a high-efficiency dust collection system, suitable for compliance with Canadian environmental standards. The low power consumption per ton of output further enhances cost efficiency and long-term reliability.

For manufacturers aiming to scale up diatomite processing with an integrated system, the LM Vertical Fine-powder Grinding Mill represents an excellent alternative. This model merges grinding, classification, and material conveyance into one compact system, minimizing installation space. The vertical layout facilitates excellent drying capability, especially beneficial in humid environments or when processing raw diatomite with moisture.
| Model | Plate Diameter (mm) | Capacity (t/h) | Output Fineness (D97) | Main Motor (kW) |
|---|---|---|---|---|
| LM130X-GX | 1300 | 4–12 | 325–600 mesh | 220 |
| LM220X-GX | 2200 | 15–30 | 325–600 mesh | 560 |
The LM Vertical Fine-powder Grinding Mill’s advantages include energy efficiency, a strong sealing system to prevent dust leakage, and automated controls to maintain steady product quality. These features make it highly compatible with Canadian feed additive manufacturing requirements, which demand precision and environmental compliance.
The industrial process for producing 325-mesh diatomite powder typically includes five major stages: drying, crushing, milling, classification, and collection. With Zenith’s grinding solutions, the process can be streamlined into a single, integrated operation. The raw diatomite is first crushed into smaller fragments, then introduced into the grinding chamber of the XZM or LM system. Multiple rollers and grinding rings apply mechanical force, while the classification system separates particles that meet the 325-mesh threshold. Oversized particles automatically return to the grinding zone, ensuring consistent fineness.
With environmental legislations becoming more stringent in Canada, the grinding solutions by Shanghai Zenith Machinery Co., Ltd. align perfectly with sustainability objectives. Both the XZM and LM series use advanced energy-efficient motors and high-efficiency separators. Dust emissions are minimized through pulse dust collectors and noise-reducing designs. Additionally, the systems are built for long operational lifespans with minimal maintenance downtime, maximizing return on investment for feed producers.

Canada’s growing livestock and poultry sectors are increasingly adopting natural, sustainable feed additives. According to agricultural market forecasts, the demand for feed-grade diatomite is expected to grow steadily in the coming decade. Local production is encouraged to reduce import dependence, which makes investments in efficient milling facilities particularly strategic. Zenith’s advanced grinding mills—tailored for consistent 325-mesh output—are well-positioned to support Canadian companies looking to enhance domestic feed additive production competency.
In conclusion, producing 325-mesh diatomite powder for animal feed additives in Canada requires precision, reliability, and environmental responsibility. Shanghai Zenith Machinery Co., Ltd., with its well-established grinding technologies like the XZM Ultrafine Grinding Mill and the LM Vertical Fine-powder Grinding Mill, offers industry-leading solutions for achieving the perfect balance of product fineness, efficiency, and sustainability. As a trusted partner in mineral grinding innovation, Zenith continues to empower global manufacturers with advanced engineering, smart automation, and energy-conscious technologies suited for modern agribusiness and feed additive production.
For more information on diatomite grinding systems or custom 325-mesh solutions for the Canadian market, please contact Shanghai Zenith Machinery Co., Ltd.