The Guxin double‑layer tracked dry‑sorting color sorter features a dual‑belt configuration that enables efficient, continuous dry‑sorting operations. Powered by an AI‑based vision system, it accurately separates ore from waste rock, delivering high sorting precision while minimizing material breakage. The unit is fully sealed to prevent dust, compatible with a wide range of ores and various particle sizes, and offers stable performance and user‑friendly operation—helping mines reduce labor costs and improve grade.

Keywords：Gu Xin Double-Deck Crawler-Type Ore Particle Color Sorter (Dry Sorting)

The Guxin double‑layer tracked dry‑sorting color sorter is specifically designed for dry‑material processing in the mining industry. Featuring a dual‑layer conveyor system and an upper–lower re‑sorting configuration, it delivers high throughput with a low breakage rate. Equipped with high‑resolution CCD sensors and AI‑powered intelligent algorithms, it ensures precise identification, achieving a purity rate of up to 99.9% and a carryover ratio of ≤2%. It is compatible with nearly one hundred types of mineral materials, including quartz, potassium feldspar, fluorite, barite, tungsten ore, gold ore, and copper oxide, while offering fully enclosed dust‑proof operation, stable performance, low energy consumption, and simplified maintenance.

I. Product Positioning

The flagship model of the dry‑sorting series, this high‑end intelligent sorter is engineered specifically for dusty, dry, open‑pit mining conditions. It excels in handling large particles, delivering high throughput, superior purity, and minimal crushing—replacing manual labor and conventional dry‑sorting color sorters. With a focus on specialized dry‑sorting performance, robust dust‑control and stability, mixed‑material sorting, and AI‑driven precision, it provides large‑scale, cost‑effective purification solutions for dry‑sorting operations worldwide.

II. Application Scenarios

● Dry separation and purification of non-metallic minerals: Dry materials such as quartz, calcite, potassium feldspar, fluorite, gypsum, and barite are directly sorted to enhance whiteness and grade.  
● Dry separation of metallic ores: roughing and cleaning stages: For tungsten, tin, copper, gold, and other ores, dry‑state removal of gangue and foreign‑colored impurities eliminates the need for water washing, thereby conserving water resources.  
● Dry separation of sand and gravel aggregates: Dry‑process purification of high-purity quartz sand, construction stone, and pebbles, compatible with direct feeding from open‑air stockpiles and dry ore bins.  
● Dry separation of mixed particle sizes: Raw ore particles from the mine (1 mm–50 mm) are directly dry‑sorted without the need for pre‑classification, thereby simplifying the dry‑sorting process.  
● Severe dry‑sorting operating conditions: Suitable for open-air or semi‑enclosed dry‑sorting workshops with high dust levels, low humidity, and ambient temperatures ranging from –20°C to 40°C; dust‑proof and waterproof, ensuring stable year‑round operation.

III. Technical Parameters

Product model	KS4-1350	KS4-1650	KS4-1950
Number of channels	512	640	768
Production (t)	15-35	20-45	25-55
Purity rate (%)	≥99	≥99	≥99
Power supply voltage (V/Hz)	220/380 (50 Hz)	220/380 (50 Hz)	220/380 (50 Hz)
Power (kW)	6.5	8	10
Air supply pressure (MPa)	0.5-0.8	0.5-0.8	0.5-0.8
Air consumption (L/min)	<4.5	<4.5	<4.5
Machine weight (kg)	2450	2600	2830
External dimensions (Length × Width × Height) (mm)	4907*1820*2727	4907*2120*2727	4907*2420*2727

Note: The above production figures are based on pebbles with a particle size of 1–5 cm, including 5% impurities.

IV. Types of Ore That Can Be Separated

● Non-metallic minerals: Quartz stone, potassium feldspar, calcite, calcium carbonate, kaolin, coal gangue, fluorite, barite, dolomite, granite, marble, perlite, limestone, talc, fused quartz, wollastonite, volcanic rock, salt deposits, bauxite, brucite, garnet, vermiculite, phosphate rock, gypsum, wollastonite, magnesite, aggregates, expansive soils, Hanyang white marble, chicken-blood stone, pebbles, and others.  
● Metallic ores: Dry‑state particle separation of tungsten ore, tin ore, lead–zinc ore, copper oxide ore, gold ore, hematite, manganese ore, and others.  
● Other dry ingredients: Dried granular materials such as pebbles, glass granules, industrial salt, and chemical granules.

V. Particle Size Range for Sorting

● Standard dry separation range: From 16 mesh (≈1 mm) to 50 mm (5 cm), supporting simultaneous dry separation of mixed particle sizes.  
● Dry separation mixed interval: Dry materials in the size ranges of 0.1–0.5 cm, 0.5–3 cm, and 3–5 cm are sorted directly without grading.  
● Customized dry separation model: Can be scaled up to dry separation of coarse particles ranging from 0.5 to 8 cm.

VI. Sorting and Recognition Dimensions

● Color dimension: RGB three-channel plus infrared (IR) multispectral imaging, enabling dry‑state micron‑level color‑difference detection to distinguish foreign particles of white, yellow, black, red, brown, and other hues.  
● Texture dimension: AI deep learning captures surface cracks, inclusions, and textural variations on dry materials, enabling the identification of homogeneous yet differently colored impurities.  
● Shape dimension: “Color sorting + shape sorting” dual-mode, removing deformed, broken, and impurity‑contaminated particles from dry materials.  
● Spectral dimension: Multispectral fusion breaks the limitations of RGB imaging, enabling the detection of dry‑state hidden impurities, such as biotite in feldspar and rust.

VII. Core Competitive Advantages

● Dual-layer tracked dry separator, exclusively for: Top-layer pre‑spreading, bottom-layer material distribution; dry materials pass inspection uniformly in a single layer, with a breakage rate ≤3%; designed for high‑dust dry conditions, offering anti‑clogging and anti‑jamming performance.  
● Dry separation with ultra-high precision: 2048/5400-pixel high-speed CCD with multispectral capability, achieving a dry-state sorting accuracy of ≥99.5% and an impurity removal rate of ≥99.9%.  
● Dry separation with an extremely low carryover ratio: Millisecond‑level solenoid valve (response ≤ 1 ms), dry‑material carry‑over rate ≤ 2%, and high‑grade material recovery rate ≥ 98%.  
● Dry separation with high capacity and low energy consumption: The standalone dry‑sorting unit has a capacity of 5–20 t/h (depending on particle size and material), with a total specific power consumption of ≤1.5 kWh/t, delivering energy savings of over 30% compared to conventional dry‑sorting equipment.  
● Dry separation with dust control and high stability: Fully enclosed, dust‑proof and waterproof design; core components feature robust dust protection; optimized for high‑dust dry separation; 20‑year service life; capable of starting at –20°C.  
● Dry separation is easy to operate and resistant to interference: Unaffected by dust, light, or temperature; featuring a touchscreen and AI‑based auto‑tuning, it can be mastered in 30 minutes, with simple on‑site maintenance for dry‑sorting operations.

VIII. The Tangible Value Delivered to Customers

● Cost reduction: A single piece of equipment can replace 20–50 dry‑sorting workers, saving RMB 500,000–1.5 million in labor costs annually; dry sorting produces no wastewater, reducing water‑saving expenses; annual maintenance costs are ≤ RMB 20,000.  
● Quality Improvement: The purity of the dry‑sorted finished product increases by 5–20 percentage points, with whiteness improved by 2–5 degrees and impurities reduced to ≤0.1%, meeting the demands of the high‑end dry‑material market and enabling a price premium of 10–30%.  
● Efficiency enhancement: Dry‑sorting capacity is **3–5 times higher**, and mixed‑size particles can be dry‑sorted directly, eliminating the need for dry‑sorting classification equipment and shortening the process by more than 40%.  
● Stable production: Continuous dry separation throughout the year, with a failure rate of ≤0.5%; stable operation under high dust conditions and low temperatures, expanding the scope of dry‑separation applications.

9. On-site visits by selected domestic and international users