Bulk Material Conveying System: Empowering Yihai Kerry 4,000 TPD Green Soybean Crushing Benchmark Plant
Key Highlights
As the largest soybean crushing base in Yunnan Province and the first carbon-neutral green factory in China's grain and oil industry, Yihai Kerry (Kunming) Food Industry Co., Ltd. posed rigorous demands for green, low-carbon, continuous, and dust-tight performance across its bulk material handling system.
GSS Systems delivered a tailored, full-process material conveying solution covering raw material intake and product dispatch sections, integrating dozens of high-efficiency units including high-capacity bucket elevators, heavy-duty en-masse conveyors, steep-incline up-load drag conveyors, and precision screw conveyors.
The system achieves seamless transfer under a 500 MT/H ultra-high capacity, constructs a fully enclosed, low-energy conveying matrix, and empowers the client to build a modern green benchmark plant with extreme energy efficiency and zero pollution.
Client Profile: Wilmar’s Strategic Hub & Leading Grain Processing Base in Southwest China
Located in Kunming, Yunnan Province, Yihai Kerry (Kunming) Food Industry Co., Ltd. serves as a strategic core hub for Wilmar Group in Southwest China. As the largest and most technologically advanced soybean crushing and processing facility in Yunnan, the plant continuously supplies healthy, safe, and high-quality local edible oils and soybean meal to consumers. Furthermore, it achieved a historic milestone in the industry: becoming the first official “Carbon-Neutral Green Factory” in China’s grain and oil sector.
Facing continuous, high-intensity turnover demands for bulk soybeans and soybean meal, achieving maximum energy saving, long-term operational stability, and zero dust leakage during large-scale production became the primary challenge for the conveying machinery in this green benchmark project.
Goals & Challenges
In constructing Yunnan’s premier carbon-neutral soybean crushing plant, the Yihai Kerry project team addressed three industry-wide critical challenges:
- High-Capacity & Long-Distance Transfer Pressure: The extraction workshop and intake section required a continuous throughput of up to 500 MT/H for raw soybeans and meal across long conveying distances (up to 268 meters single-line) and high vertical lifts, imposing extreme demands on mechanical strength, fatigue resistance, and full-load starting capabilities.
- Complex Layout & Multi-Directional Routing: Complex plant layouts involved horizontal, inclined, multi-point loading/unloading, and steep-angle directional changes (up to 90° up-load drag conveyors). Conventional equipment risks material jamming, clogging, or segregation under such dense spatial routing.
- Strict Eco-Friendly & Zero-Emission Standards: As a national carbon-neutral facility, conveying operations had to minimize power consumption per ton while eliminating grain breakage and dust emissions to meet world-class environmental standards.
Customized Solution: High-Capacity Low-Energy Handling & Green System Deployment
Tailored to the massive throughput requirements of Yihai Kerry Kunming’s soybean crushing line (4,000 TPD) and the stringent environmental standards of a national carbon-neutral plant, the GSS engineering team delivered a comprehensive equipment solution covering raw material intake and product dispatch sections:
- Heavy-Duty & Steep-Incline Drag Conveyors: Deployed En-Masse Drag Conveyors, steep-incline Up-Load Drag Conveyors and double-deck drag conveyors. The system seamlessly covers horizontal and 35°–90° steep-angle directional turns, supporting ultra-long single-line conveying up to 268 meters and handling heavy throughputs up to 500 MT/H.
- High-Capacity High-Lift Bucket Elevators: Deployed robust bucket elevators with vertical lifts reaching up to 55 meters and individual capacities spanning 50 MT/H to 500 MT/H. Featuring optimized high-capacity bucket geometry and reinforced anti-impact chains/belts, the elevators guarantee stable vertical lifting across high drops, eliminating back-feeding and jamming risks to protect intake and storage stability.
- Precision Metering Screw Conveyors & Smart Distribution: Deployed multi-specification precision screw conveyors to serve short-distance metering, discharging, and cleaning points, integrated with heavy-duty 5-Point Gravity Distributors (400 MT/H handling capacity) for high-precision multi-way flow switching.
Project Value: Triple Breakthroughs in High Throughput, Energy Optimization & Operational Stability
High Throughput & Bottleneck Elimination
The system delivers continuous 500 MT/H material flow with seamless inter-equipment transfer, significantly accelerating turnover efficiency for raw materials and finished meal to sustain full-capacity plant output.
Energy Optimization & Carbon-Neutral Support
Optimized drive mechanisms and high-efficiency motors noticeably reduce unit energy consumption compared to conventional setups, directly supporting the client's carbon-neutral strategic goals.
Exceptional Reliability & Low Maintenance
Engineered and manufactured strictly in line with international standards, the machinery exhibits superior wear resistance and extended service life, drastically reducing unscheduled downtime and maintenance expenses.
"GSS Systems demonstrated exceptional engineering dedication and international professional standards. Throughout the execution of the Yihai Kerry Kunming project, the GSS team ensured the flawless implementation of every phase—from meticulous design and manufacturing to on-site installation and commissioning—with rigorous planning and superb craftsmanship. This high-efficiency, low-energy conveying system not only guarantees the stable and high-output operation of our soybean crushing lines, but also perfectly aligns with our strategic vision of building China's first carbon-neutral green factory in the grain and oil industry."
