Fine Ground Dolomite Powder

Our Fine ground dolomite powder is produced from high-purity natural dolomite in mining areas through multi-stage grinding including jaw crushing, cone crushing and Raymond grinding, followed by precise screening with air classification equipment. The whole production process adopts closed flow to avoid impurity mixing, ensuring uniform particle size and stable calcium-magnesium ratio of products. Different from ordinary ground dolomite powder, our Fine ground dolomite powder strictly controls the proportion of large particles with adjustable mesh range from 200 mesh to 800 mesh. Featuring good filling performance and dispersibility as well as moderate Mohs hardness, it causes little abrasion to downstream processing equipment and can be widely adapted to various industrial filling scenarios. Benefiting from stable quality and controllable costs, our Fine ground dolomite powder has become a designated long-term supply product for multiple domestic construction, glass and ceramic enterprises, serving over 200 industrial customers cumulatively with consistent market feedback.

As a source factory, we have established a full-process cost control system at the production end of fine ground dolomite. Under the premise of meeting core indicators, we continuously reduce customers' procurement costs through large-scale production and process optimization. Each batch of finished products undergoes triple testing before delivery to ensure minimal fluctuation of key indicators such as whiteness, calcium-magnesium content and fineness pass rate, avoiding unstable finished product quality of customers caused by batch differences of raw materials. Exclusive packaging and indicator customization services are available for long-term cooperative agents and overseas purchasers, paired with flexible delivery cycles to fully adapt to market demands of different regions.

● Construction Industry: Functional filler for dry-mixed mortar, putty powder and thermal insulation mortar to improve material workability and dimensional stability and lower production costs; also used as component of raw materials for permeable bricks and antique bricks to regulate sintering performance of blanks.

● Glass & Ceramics: Calcium-magnesium introducing agent in glass production to adjust glass melting temperature and viscosity; also applied in blank ingredients of daily ceramics and architectural ceramics to improve thermal stability and mechanical strength of ceramics.

● Industrial Filler: Incremental filling for ordinary rubber and plastic products to enhance product rigidity and anti-aging performance and drastically reduce raw material costs on the premise of guaranteeing basic performance.

● Environmental Protection Field: Used for primary neutralization treatment of acidic wastewater or auxiliary filler for flue gas desulfurization; balanced calcium-magnesium components improve sustainability of neutralization reactions.

We are a source production factory with more than ten years of deep cultivation in non-metallic mineral processing, owning self-owned dolomite mines and two modern production bases. A full set of high-precision grinding and classification equipment is introduced with annual output exceeding 300,000 tons, capable of stably undertaking large-batch and multi-specification order demands. The factory is equipped with an independent R&D and testing center furnished with professional testing equipment such as laser particle size analyzers, whiteness meters and atomic absorption spectrophotometers to complete full-indicator testing from raw material incoming inspection to finished product delivery. Besides full-series dolomite products, we also produce more than ten types of non-metallic mineral products including limestone sand, calcium hydroxide and heavy calcium carbonate, enabling customers to implement one-stop procurement and cut procurement and communication costs.

We have built a three-level quality control system of "raw material incoming inspection – production process – finished product delivery" to control product quality from the source. Before raw materials enter the factory, calcium-magnesium content and impurity levels of each batch are tested, and ore failing to meet grade standards is firmly rejected. During production, sampling inspection is conducted every 2 hours to adjust grinding and classification parameters in real time and secure stable fineness and whiteness indicators. Before delivery, the quality inspection department issues full-item test reports, and products with unqualified indicators are prohibited from leaving the warehouse. For export orders, we can also provide third-party authoritative institution test reports to ensure products meet quality standards of target markets.

Multiple packaging specifications are provided to adapt to diverse customer demands: standard industrial package is 25kg laminated woven bags lined with moisture-proof PE film; bulk purchases can adopt 1-ton bulk bags for mechanical loading and unloading convenience; neutral English packages or exclusive brand packages for customers can be customized for overseas orders. In terms of transportation, we maintain long-term cooperation with multiple professional logistics and freight forwarding companies. Domestic orders can be delivered by dedicated vehicles directly, while overseas orders support multiple trade terms including FOB and CIF with full tracking of logistics status to ensure intact and on-time delivery of goods to customers' designated locations.

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