Marble is primarily composed of calcium carbonate, making it an excellent raw material for producing heavy calcium carbonate (HCC). The large amounts of offcuts and waste generated during stone processing can be transformed into high-quality fillers for industries such as plastics, coatings, papermaking, and engineered stone through grinding and further processing, turning waste into valuable resources. Recognizing that marble is relatively soft, easy to grind, and requires high whiteness, SBM has developed a range of grinding equipment tailored to these characteristics, meeting the production needs for both conventional fillers and high-end ultra-fine heavy calcium carbonate.
The mainstream marble grinding process consists of crushing, grinding, classification, dust removal, and finished product collection. This process is well-established and highly automated. For large-scale stone industrial parks and commercial-scale heavy calcium carbonate producers, we recommend the SBM LM Vertical Mill. This equipment integrates drying, grinding, and classification functions, allowing direct processing even when the raw material contains a small amount of moisture, thereby eliminating the need for separate drying equipment. With a production capacity of 10–340 tons per hour, the mill produces 80–400 mesh finished product to meet general-purpose heavy calcium carbonate powder requirements. The highly automated system reduces labor costs and is suitable for continuous, large-scale production.
For small and medium-sized processing plants utilizing marble scrap, the MTW European mill is the economical choice. The equipment features a compact design, occupies minimal floor space, and has low site requirements. Curved scrapers enhance grinding efficiency, while the thin-oil lubrication system reduces downtime due to malfunctions. With a production capacity of 3–45 tons per hour, it flexibly adapts to small-scale production lines. The upgraded MTW6X Smart European Mill is equipped with a new-generation blower, further reducing system power consumption. Its IoT capabilities enable remote monitoring, making production management more convenient.
For enterprises specializing in high-end ultra-fine heavy calcium carbonate for applications such as premium coatings and food-grade fillers, the LUM Ultra-Fine Vertical Mill or SCM Ultra-Fine Powder Mill are recommended. These machines can achieve a finished product fineness of 325–2,500 mesh, producing fine, high-whiteness powder with excellent dispersibility, and D97 particle size meeting high-end industry standards. Both models are easy to maintain and exhibit low failure rates during long-term operation. The PMD Permanent Magnet Direct-Drive Mill, utilizing permanent magnet drive technology, features extremely low power loss, making it the preferred choice for energy-saving retrofits of outdated marble grinding lines.
The entire production line operates under negative pressure in a sealed environment, with pulse dust collectors achieving an efficiency of over 99.9%, ensuring zero dust pollution and meeting green production requirements. SBM not only provides individual machines but also customizes complete resource recovery production lines based on waste material characteristics, site size, and production capacity targets, including installation, commissioning, and lifetime maintenance services. Currently, multiple marble waste powder production projects are operating stably with significant economic benefits.
If you are planning a marble grinding or scrap material resource recovery project, please click the Business Contact button or leave a message with your production capacity and fineness requirements to receive a free solution and quote!
