Limestone is a non-metallic raw material widely used in building materials, desulfurization, and as a plastic filler. Currently, most processing plants focus on producing 200–325 mesh fine powder, and the selection of core production line equipment directly determines output, energy consumption, and product quality. Many first-time customers blindly opt for outdated Raymond mills, resulting in issues such as low output, oil leaks, coarse powder carryover, and excessive dust levels, leading to persistently high total operating costs. Consequently, an increasing number of manufacturers in the industry are switching to the SBM MTW Series European grinding mills.
The complete limestone grinding process consists of four stages: crushing, feeding and grinding, classification, and powder collection. Large limestone blocks are crushed to 30–50 mm by a jaw crusher, conveyed by a bucket elevator to a storage silo, and then uniformly fed into the MTW European mill main unit by an electromagnetic vibrating feeder. The equipment is equipped with innovative curved scrapers that increase the material’s grinding contact area, boosting production capacity by more than 15% compared to equivalent models; The drag-free spiral air inlet design optimizes airflow, reducing the machine’s overall energy consumption and resulting in significant long-term savings on electricity costs.
Traditional grinding mills typically use grease lubrication, which makes bearings prone to high-temperature wear. The MTW European mill comes standard with a fully automatic thin-oil lubrication system that provides excellent heat dissipation, significantly extending the service life of bearings and grinding rollers while reducing the frequency of downtime for maintenance. Equipped with a high-efficiency cage-type classifier, it offers high classification precision and completely eliminates coarse powder carryover. The finished product fineness is consistently maintained between 0.038 and 1.6 mm, fully meeting the standards for desulfurization lime powder and coating fillers.
The entire system operates under negative pressure in a closed-loop configuration and is paired with a pulse dust collector, ensuring no dust leakage from the workshop and compliance with environmental impact assessment requirements. Equipment models range from MTW115G to MTW218G, with hourly capacities of 3–45 metric tons, making them suitable for both small-scale processing plants and large-scale limestone production lines with annual capacities of 100,000–400,000 metric tons. Calcium powder plants in Shanxi, Inner Mongolia, Hubei, and other regions across China have implemented Shibang’s MTW European grinding production lines, with long-term operational feedback indicating stable performance and low failure rates.
Many customers are unsure which model to choose based on their ore hardness and target production capacity; blind purchasing can easily lead to either overcapacity or insufficient capacity. If you are planning a limestone grinding project but are unsure about equipment selection, production line layout, or investment budget, you can click the “Business Chat” button on this page to leave a message. Simply provide the raw material type, target fineness, and hourly production capacity, and SBM’s technical engineers will provide a free, one-on-one customized production line solution and detailed quotation within 24 hours.
