Gu Xin Limestone-Specific Color Sorter: Intelligent Sorting Empowers the Industry to Enhance Quality and Efficiency
Release Date:
2026-06-11
At a critical juncture in the transformation of limestone processing toward high-end, intelligent operations, Hefei Guxin Electronic Technology Co., Ltd. has developed a specialized color sorter for limestone. Leveraging cutting-edge technology and robust performance, this equipment has overcome longstanding sorting challenges in the industry, becoming a key piece of machinery driving industrial upgrading and earning widespread recognition from customers both at home and abroad.
At a critical juncture in the limestone-processing industry’s transition toward high-end, intelligent operations, Hefei Guxin Electronic Technology Co., Ltd. has developed a specialized color sorter for limestone. Leveraging cutting-edge technology and robust performance, this machine has overcome longstanding sorting challenges, emerging as a key piece of equipment driving industrial upgrading and earning widespread recognition from customers both at home and abroad.
This equipment addresses the key challenges of limestone sorting, leveraging AI‑driven deep learning algorithms and multispectral fusion technology to deliver an “intelligent, eagle‑eyed” solution for ore classification. Equipped with a 5,400‑pixel high‑speed linear CCD sensor, it can precisely detect color differences and impurities as fine as 0.01 mm, identifying foreign particles such as silica, magnesite, and soil. With a color‑sorting accuracy of up to 99.9%, it ensures limestone purity at the source, eliminating the industry‑wide dilemma of “one impurity ruining a ton of powder.” The system boasts exceptional versatility, handling limestone across the full particle size range of 5–150 mm. Its dry‑and‑wet dual‑mode design requires no additional pre‑processing, enabling efficient sorting of both moist and dry materials. A double‑layer conveyor‑belt discharge structure enhances transport stability, seamlessly integrating with large‑scale production lines. Fully automated operation minimizes the need for frequent manual intervention, significantly reducing labor costs. Meanwhile, the reject‑carry‑over rate is tightly controlled at below 2%, minimizing the loss of high‑quality raw material. Production capacity is several times higher than manual sorting, while energy consumption per unit is reduced by more than 15%, helping enterprises cut costs and boost efficiency. Robust adaptability to demanding operating conditions is one of its core strengths. Featuring a modular, low‑power architecture and an integrated self‑cleaning system, with wear‑resistant protection on critical components, the equipment operates reliably even in sub‑zero temperatures down to –20°C. It withstands harsh environments—such as dusty or humid conditions—and is well suited to a wide range of complex mining scenarios.
As a national-level high-tech enterprise, Guxin has been dedicated to mineral sorting for sixteen years. Its specialized color-sorting machine is now widely used in industries such as calcium carbonate production, metallurgy, and building materials, and is exported to more than a dozen countries and regions, including India, Egypt, and Australia. Looking ahead, Guxin will continue to drive technological innovation, leveraging intelligent sorting equipment to propel the limestone industry toward a new era of high-end, green, and efficient development.
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