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Gravity separation is one of the most common beneficiation methods used in mining, and spiral chutes are standard equipment for this process. However, with ore becoming increasingly complex and environmental regulations stricter than ever, traditional spiral chutes often fail to meet today’s production demands.
Drawing on decades of experience in mineral processing, Xinhai has developed a new generation of spiral chute—the XH Spiral Chute. Through continuous innovation, it is now widely applied in gravity separation projects around the world.
One example is its successful use in a placer gold project in Russia, where the customer praised its separation results and production efficiency.
So, what exactly sets the XH Spiral Chute apart? Let’s look at its main advantages, technical parameters, and application areas.
The XH Spiral Chute represents a major upgrade in chute surface material. It uses high-quality, wear-resistant engineering plastics with excellent resistance to acid and alkali, fire-retardant properties, cold resistance down to -30°C, and UV resistance to prevent aging. Compared to traditional fiberglass, this advanced material dramatically extends service life, lowers long-term operating costs, and reduces replacement and maintenance frequency.
Another highlight is its patented dual-stage 3D spiral design. This structure solves the common “sand dune wall” issue of traditional chutes. By improving fluid dynamics, it loosens mineral particles more effectively, enabling heavier and lighter minerals to separate more thoroughly. The result is significantly higher separation efficiency and recovery rates.
The XH Spiral Chute operates without power. It relies only on gravity and water flow, making the system simple, stable, and reliable. A single unit can handle up to 6 t/h, with each spiral head processing 1.5–2 t/h. This maximizes throughput at the same energy level, delivering clear energy-saving benefits for customers.
The outstanding performance of the XH Spiral Chute comes from carefully engineered parameters:
Diameter: 1200 mm – provides ample separation space for mineral particles.
Pitch: 580 mm – ensures stable slurry flow and uniform separation.
Capacity: 1.5–2 t/h per head; 6 t/h per unit – adaptable for different plant scales.
The equipment supports flexible modular configurations with 2, 3, or 4 heads per unit. This modular design allows for easy installation, adapts quickly to site conditions, and shortens project timelines.
The XH Spiral Chute can be applied widely across mineral processing:
Metallic Ore Separation: Ideal for hematite, magnetite, tungsten, tin, ilmenite, zircon, tantalum-niobium, and gold. It efficiently handles ores with clear density differences, improving concentrate grade and recovery rates.
Sand Mining: Perfect for coastal or river sand deposits, separating gold, platinum, ilmenite, zircon, and other heavy minerals. It addresses low recovery and small throughput issues in traditional sand mining equipment.
Non-Metallic Ore Purification: Effective for removing heavy impurities in quartz sand, feldspar, fluorite, etc., raising product purity and value.
Tailings Recovery: Recovers fine-grained metallic minerals from tailings, improving overall resource utilization and reducing environmental impact.
The XH Spiral Chute proves its value in various scenarios:
Roughing & Scavenging: Large capacity and low cost make it suitable for initial enrichment or tailings retreatment, reducing pressure on later stages.
Low-Grade Ores: High precision allows for economical development of low-grade deposits, extending mine life.
Medium-Grain Ores: Delivers stable separation results. For ores with high clay content, desliming before separation is recommended for best performance.
Easy Installation: Optional steel frames support groups of four chutes. Simple onsite assembly allows for quick startup, meeting urgent production needs.
As a global EPC+M+O mining service provider, Shandong Xinhai Mining Technology & Equipment Inc. has deep expertise in mineral processing equipment. Its R&D team of over 300 covers 18 disciplines—from geology and mining to mechanical and beneficiation engineering—including senior engineers and certified professionals. This ensures continuous optimization and innovation of the XH Spiral Chute.
With nearly 30 years of history since its founding in 1997, Xinhai integrates mining, mineral processing, and tailings management services. The company offers end-to-end solutions including consulting, testing, design, equipment manufacturing, construction, installation, commissioning, and operations management. This full-industry-chain strength allows Xinhai to deliver everything from single machines to complete processing solutions.
The XH Spiral Chute is one of many advanced products reflecting Xinhai’s commitment to innovation and customer value.
Conclusion
With ore becoming more complex and grades lower, mining costs continue to rise. The demand is clear: mineral processing plants need equipment that is efficient, easy to operate, stable, and reliable.
Choosing the XH Spiral Chute means choosing a smarter, more efficient, and more economical solution for modern beneficiation.
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