From Nantong to Sanming: The Journey of LYH998-175

Morning light pierces the mist at the Yangtze River estuary, illuminating the modern facilities of Nantong Liyuanheng Raymond Mill Machinery Co., Ltd. In the early winter of 2025, the heavy-duty shipping platform presents an unusually solemn sight: a large precision machine, coated entirely in deep-sea blue industrial paint and bearing the model plate “LYH998-175,” has completed all factory tests and protective treatments. It stands like a fully armed steel warrior, ready to embark on a journey spanning mountains and seas to reach Sanming, Fujian. This is not just a physical transfer of equipment—it is a precise dialogue connecting the manufacturing hub of the Yangtze River Delta with the industrial upgrading zone of Northwestern Fujian, a testament to China’s manufacturing excellence, and a convergence of Liyuanheng’s philosophy of craftsmanship with the ambitious vision of Sanming’s clients.

Part I: LYH998-175 — The “Precision Grinding Weapon” Defining a New Industry Benchmark

Within Nantong Liyuanheng’s product line, the “LYH998” series represents the pinnacle of the company’s achievements in large-scale, intelligent, and high-end Raymond mills. The “175” denotes the mill roller diameter of 175mm, highlighting its powerful specifications. The soon-to-depart LYH998-175 is the culmination of three years of technical development by Liyuanheng’s R&D team, integrating new materials, innovative processes, and advanced intelligent control systems.

Core Technological Breakthroughs Exemplifying Precision Craftsmanship:

1. Structural Innovation: Stability Like a Rock
   This model features Liyuanheng’s proprietary “dual-layer hydraulic load-balanced roller assembly.” Traditional roller systems often suffer uneven wear under prolonged high loads. The LYH998-175 employs a precision dual-layer hydraulic design, ensuring that all three to four rollers maintain equal pressure and consistent motion while grinding, keeping dynamic imbalance to a minimum. This increases grinding efficiency by over 25% and extends the lifespan of core components by 40%. Its mainframe base, cast in a single pour from ultra-heavy steel and weighing 18 tons, provides unparalleled vibration resistance and operational stability.

2. Material Revolution: Enduring Performance
   The rollers and rings are the “heart” of a Raymond mill. LYH998-175’s roller sleeves use a “multi-alloy composite cladding” developed jointly with a top domestic materials institute. A 15mm thick layer of high-hardness, high-toughness, and highly wear-resistant alloy is fused onto a 65Mn steel substrate, achieving a Rockwell hardness of HRC 62–65. Its wear resistance is more than three times that of traditional high-chrome alloys, making it ideal for grinding high-hardness, high-silica materials like quartz, feldspar, and fluorite commonly found in Sanming.

3. Intelligent Core: Controlling the Future
   The mill is equipped with Liyuanheng’s fourth-generation “SharpMind” central control system, integrated with an Industrial IoT gateway for real-time data collection, cloud storage, and remote expert diagnostics. Operators can start, stop, and adjust fineness with a single touch while monitoring hundreds of key parameters, including motor current, fan pressure, and bearing temperature. AI algorithms predict clogging risks based on current trends, allowing remote teams in Nantong to synchronize and “diagnose” the equipment’s health in real time.

Tested to Perfection for Ultimate Delivery
Before shipment, LYH998-175 underwent the most rigorous factory inspection. Rather than running idle, it was tested on Liyuanheng’s unique “full-condition simulation platform” for 72 continuous hours using the same raw materials as Sanming’s production. All performance data—output, fineness, energy consumption, vibration, noise, and temperature rise—were meticulously recorded in a detailed “Personalized Performance Certification Report,” which serves as the machine’s “ID card” and operational health record. Liyuanheng believes it delivers not just equipment, but a promise validated by testing.

Part II: Crossing a Thousand Miles — The Overland “Long March” of a Precision Machine

Transporting a 15-meter-long, 4-meter-wide, 4.5-meter-high, 65-ton “steel giant” from the Jiangsu plains of Nantong to the mountainous terrain of Sanming, Fujian, is an extraordinary logistical challenge, demanding expertise in both transportation and full-scale project risk management.

Phase One: Ultimate Protection, Giving Steel a “Soft Touch”
A week before shipment, an 8-person packaging engineering team began meticulous preparations. This was not simple wrapping but the creation of a “mobile fortress” for precision equipment.

• Core Protection: Ultra-precision components such as roller assemblies, main shafts, and classifier impellers were fully sealed with vapor-phase rust-proof film, embedded in custom polyurethane molds, and covered with thick waterproof tarps.

• Surface Guarding: All precision surfaces (flanges, guide rails) were padded with 3mm soft rubber and covered with high-strength composite panels, secured with steel straps to prevent scratches or impacts.

• Structural Frame: The machine was firmly anchored to a welded high-strength square steel transport base, with special damping rubber pads absorbing high-frequency vibrations from the long journey.

Phase Two: Smart Route Planning Through Southeast China’s Hills
The overland route spans ~1,100 km across Jiangsu, Zhejiang, Jiangxi, and Fujian, transitioning from plains to hilly terrain. Liyuanheng’s logistics team, in collaboration with leading heavy-haul carrier Anda Transport, employed 3D route simulation combined with real-time traffic and road data to select the optimal path. Key points along the route, including 23 bridges, tunnels, and sharp turns, each had a detailed contingency plan verified by advance inspection vehicles. The convoy used Mercedes-Benz Actros heavy-duty tractors paired with China’s 13-axle hydraulic flatbed trailers, supporting over 200 tons of load to ensure safe passage.

Phase Three: Solemn Departure, Mission Guaranteed
On the morning of shipment, heavy lifting proceeded as planned. Under the precise coordination of two national crane commanders, two 260-ton mobile cranes lifted the LYH998-175 onto the transport platform. Every sling angle and crane load was monitored in real time. Professional teams secured the machine with hundreds of high-strength straps and chains, each tension verified to preset torque. Following a solemn dispatch ceremony, the convoy departed the Liyuanheng factory, escorted by the company’s general manager, chief engineer, and production team, sending the “Blue Dragon” on its forty-plus-hour journey.

Part III: Rooting in Sanming — Empowering Northwestern Fujian’s Green Industrial Transformation

The LYH998-175’s final destination is a nationally recognized “Little Giant” enterprise in a high-tech industrial development zone in Sanming, dedicated to producing high-performance silicon-based materials for new energy, electronics, and composites. These processes demand exceptionally strict control over powder purity, particle size distribution, and morphology. Existing equipment could no longer meet the client’s aspirations for high-end industrial applications, and after a global selection process, Liyuanheng’s LYH998 series was chosen.

Why Sanming? Why LYH998-175?
Sanming, historically a revolutionary base and ecological treasure, has leveraged rich non-metallic mineral resources (high-quality quartz, fluorite, limestone) and solid industrial foundations to develop new materials and emerging strategic industries. The client’s choice of Liyuanheng was based on multiple factors:

1. Technical Fit: LYH998-175’s high crushing capacity, precise classification, and wear resistance perfectly match the client’s need to produce ultra-fine, high-purity silicon micro-powder from local quartz.

2. Energy Efficiency: Integrated energy-saving fans and intelligent frequency conversion systems reduce electricity consumption per unit by ~18%, supporting China’s “dual carbon” strategy.

3. Service Reliability: Liyuanheng’s “on-site engineer + cloud support” model guarantees responses within 2 hours and solutions within 24 hours, eliminating concerns over delayed service and high costs of imported equipment.

Beyond Delivery: Co-Creating Lifecycle Value
Liyuanheng’s commitment extends far beyond unloading the machine. A “Delivery Assurance Team” of installation, electrical, and process experts arrived in advance to work alongside the client:

• Foundation Verification and Pre-Aligment: Ensuring the ~200 m² foundation meets millimeter-level design precision.

• Systematic Installation Supervision: Guiding safe lifting, precise alignment, and proper connections.

• Comprehensive Training: Combining theory and hands-on practice in operation, maintenance, troubleshooting, and process optimization, building an enduring technical team.

• Production Ramp-Up Support: Assisting with raw material trials and parameter optimization to achieve and exceed design capacity quickly.

This collaboration allows the Sanming client to overcome production and quality bottlenecks, securing high-end market share. For Nantong Liyuanheng, it establishes another benchmark in high-end silicon materials, with a demonstration effect across the Southeast coastal new materials cluster. Regionally, it exemplifies the Yangtze River Delta’s high-end equipment enabling the industrial upgrade of resource-based areas in Northwestern Fujian, contributing to domestic circulation and regional coordinated development.

As the LYH998-175 hums steadily amidst Sanming’s green hills, it grinds not only hard minerals but also the hope for regional industrial upgrading—a steadfast step toward high-quality development. From the banks of the Yangtze to the waters of Shaxi, this precision machine spans not only geographical distance but also embodies China’s manufacturing vitality and shared value creation. Where craftsmanship leads, mountains and seas can be crossed; where dedication resides, the future is forged together. This journey, beginning in Nantong, will illuminate the industrial landscape of Sanming with brilliance.