This grinding disc employs a novel monolithic casting + precision CNC machining process, featuring a large circular disc shape with a central feed zone, inner rotating disc teeth, and outer stationary disc mounting holes (dozens of precision bolt holes). Constructed entirely from high-strength alloy steel, it undergoes carburizing and quenching + special heat treatment, resulting in a deep gray/silver-black mirror finish. Its rounded edges prevent cuts, showcasing premium industrial aesthetics and durable quality. As an original factory-developed component by Maoyue, it eliminates reliance on imports, achieving 100% domestic control over core components.
It is the premier choice for upgrading PE grinding mills, boosting production capacity, and enhancing powder quality. The core competitiveness of Mao Yue's monolithic grinding disc lies in its use of the company's proprietary DC53 high-wear-resistant tool steel as the base material. With a stable hardness of HRC 60-61, it undergoes carburizing and quenching followed by multiple tempering heat treatments. The cutting teeth exhibit exceptional wear resistance, impact resistance, and fatigue resistance. Compared to standard grinding discs on the market, its service life is extended by more than 2 times (maintaining high-efficiency grinding after hundreds to thousands of continuous operating hours), significantly reducing replacement frequency and downtime losses.
Additionally, the monolithic design ensures superior structural rigidity without risks of deformation from joints. It exhibits excellent balance, minimal vibration, and low noise during high-speed rotation (thousands of RPM). Grinding gap adjustment is exceptionally straightforward—micron-level precision fine-tuning is achieved using only a feeler gauge and adjustment bolts, enabling quick operation without specialized tools. The unique high-precision tooth profile machining (radial fine-tooth pattern + optimized angles), combined with the MaoYue mill's dual air-water cooling system, effectively controls grinding chamber temperature. This prevents PE material from softening, carbonizing, or sticking to the grinding disc due to friction-induced overheating, ensuring powder remains free of clumping and discoloration during prolonged continuous production. The finished powder fineness is stably controlled at 10-120 mesh (PE commonly requires 20-80 mesh ultrafine powder), featuring a narrow particle distribution, high sphericity, excellent flowability, and no noticeable coarse particles or impurities. Production capacity is significantly enhanced compared to traditional split discs, with lower energy consumption and higher efficiency. As an original Mao Yue accessory, it perfectly complements the full range of Mao Yue PE/PP/EVA pulverizers and is compatible with select mainstream brands. Customization services are available for different disc diameters, tooth density configurations, and surface coatings, offering superior cost-performance compared to imported equivalents.
Mao Yue's integrated PE grinding discs are widely adopted across plastic processing and recycling industries, demanding exceptional powder fineness, uniformity, purity, and throughput. First, in plastic recycling and regeneration, they efficiently pulverize waste PE materials (such as PE film, agricultural mulch, PE pipes, bottle caps, cable materials, strapping bands, garbage bags, etc.) into fine powder. This powder is then supplied for high-value applications like regranulation, film blowing, pipe/profile extrusion, and injection molding, achieving a green closed-loop “waste-to-treasure” transformation. Second, for rotational molding applications, the produced PE powder exhibits uniform particle size, agglomeration-free properties, and exceptional flowability. This makes it particularly suitable for rotational molding of large hollow products (e.g., water tanks, pallets, playground equipment, chemical storage tanks), ensuring consistent wall thickness, smooth surfaces, and freedom from bubble defects. Additionally, in powder coating and chemical modification applications, it produces high-quality PE powder coatings (high fineness, scorch-free, impurity-free) widely used in electrostatic spraying and fluidized bed impregnation processes. Simultaneously, it serves as an ultrafine carrier for PE-based filler masterbatches, color masterbatches, and functional masterbatches, enabling precise dispersion and performance enhancement in downstream modified plastics. Other high-demand applications include fine grinding of flexible polyolefins like EVA/LLDPE, small-batch R&D testing in laboratories, and eco-friendly shredding of PE plastic components from electronic waste. Leveraging dozens of core patented technologies, European quality standards, and stringent quality control, this integrated grinding disc helps customers overcome PE grinding capacity bottlenecks, reduce energy consumption, and enhance recycled material quality—perfectly aligning with national “dual carbon” goals and circular economy policies.
This model features a disc diameter of approximately 470-500mm, a main motor power of 37-45kW, a typical production capacity of 100-300kg/h, and a spindle speed of 3600-3800rpm. Equipped with 24-28 replaceable moving blades + high-density fixed tooth plates, it delivers high shearing efficiency and wear control for PVC with medium to low filler content, with a service life of approximately 500-800 hours. Intelligent temperature control + water-cooled circulation maintains grinding chamber temperature at 45-55°C, preventing PVC decomposition/yellowing.
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