Zirconia & Ceramic Classification Wheel

High-precision powder classification determines the performance, safety andlong-term  long-term lifespan of lithium battery cathode and anode materials. As the core functional functional component of industrial industrial airflow classification equipmentcation equipment, the ceramic classification wheel precisely precisely controlcontrols powder precision, narrow particle size distribution and overall while loweringnarrow particle size distribution, and overall batch consistency while effectively lowering impurity levelss, directly influencinfluencing finished finished battery energy density, cycle stability and industrial, cycle stability, and industrial production yield. Compared withCompared with traditional metal and plastic parts that suffer from rapid wear, corrosion and deformation that suffer from rapid wear, corrosion and deformation,  wear-resistant ceramic classification wheels have become the ideal and most reliable and most reliable choice for high-standard lithium battery material mass and precision mass  and precision manufacturingmanufacturing.Sanxin New Materials, a professional fine ceramic manufacturer with over 10 years of independent R&D and standardized production experience, focuses on high-performance classification wheels tailored for new energy lithium battery powder processing scenarios. We independently develop and supply three mature core series:alumina classification wheel, zirconia classification wheel, and silicon carbide classification wheel. Featuring outstanding anti-pollution capability, ultra-stable dimensional accuracy, and superior long-term wear resistance, all Sanxin ceramic wheels effectively solve common industrial classification pain points, including powder metal contamination, uneven particle size distribution, unstable batch quality, and short accessory service life, bringing stable and cost-effective production upgrades for lithium battery manufacturers.

1. Full In-House Production & Strict Quality Control

most Unlike peers that rely on outsourced blanks and external blanks and external processing, Sanxin operates a full in-house in-house production chain covering high-purity high-purity powder independent independent batching, uniform uniform isostatic pressing molding molding, high-temperature dense sintering and micron-level ultra-ultra-precision machining. Instead of adopting fixed universal formulas, wInstead of adopting fixed universal formulas, we customize exclusive exclusive ceramic formulas and structural solutions and structural solutions based on on-site on-site working conditions, including, including powder hardness, chemical chemical corrosiveness, continuous operating continuous operating temperature and equipment equipment rotating speed, completelying, completely eliminating performance mismatch and quality instability and quality instability caused bycaused by generic standardized products.technology effectively , density differences and structural defects inside ceramic blanksgradient  uniform and structurallyfinished partprofessional CNC machining centersthe overall  for every wheel to eliminate high-speed vibrationstandardized quality  accuracy, densityrealiz-process and stable batch consistencyIsostatic pressing removes internal pores and density inconsistencies, while segmented high-temperature sintering forms dense, structurally stable ceramic blanks. Equipped with advanced CNC and precision grinding equipment, we achieve a ultra-high machining accuracy of ±0.005mm and strict dynamic balance calibration for every wheel to eliminate high-speed vibration. All products undergo ISO9001-certified full-range tests on dimension, density, hardness, wear resistance and impurities, ensuring complete quality traceability and stable batch consistency.

2. Key Performance Advantages for Lithium Battery Classification

2.1 Zero Contamination & High Chemical Stability

Traditional metal and polymer classification wheels are extremely prone to electrochemical corrosion, physical wear and high-temperature aging under long-term weak acid, weak alkali and high-temperature powder processing conditions. The falling metal debris and aging organic impurities will directly mix into lithium battery raw materials, causing battery self-discharge, capacity attenuation and potential safety risks. In contrast, Sanxin ceramic classification wheels feature excellent chemical inertness and structural stability, with zero material dissolution, peeling and impurity precipitation during long-term continuous operation.Zirconia ceramic classification wheel: Boasts excellent fracture toughness and comprehensive acid-base corrosion resistance, with 3-5 times higher wear resistance than ordinary metal wheels. It perfectly adapts to high-impact, high-load and high-speed continuous working conditions, making it the ideal choice for high-precision classification of high-nickel ternary cathode materials and other magnetically sensitive battery materials.Alumina ceramic classification wheel: Features ultra-high hardness, stable chemical performance and cost advantages, with zero ion dissolution. It maintains stable working performance in conventional new energy production environments and is widely applicable for high-stability processing of lithium iron phosphate, natural graphite and artificial graphite powder, achieving a perfect balance between performance and cost.Silicon carbide ceramic classification wheel: Possesses extreme chemical inertness, high-temperature resistance and oxidation resistance. It can operate stably in harsh environments with strong corrosion and super-hard powder scouring, perfectly meeting the ultra-precision classification demands of ultra-hard powder materials and 24-hour uninterrupted high-temperature continuous production.

2.2 Ultra-Low Magnetic Foreign Matter

Magnetic foreign matter is one of the core prohibited impurities in high-purity lithium battery materials, which easily triggers internal micro-short circuits, causes capacity attenuation and greatly reduces battery safety and service life. To solve this problem, we implement full-process magnetic contamination control: adopting high-purity non-magnetic ceramic raw materials, professional non-magnetic processing tooling, and standardized dust-free clean-area packaging. The finished classification wheels meet ultra-high cleanliness standards for high-end lithium battery materials, requiring no secondary degaussing treatment and effectively simplifying customer production processes.

2.3 Stable Dimensional Accuracy at High Temperature

Long-term high-speed rotation of classification wheels will generate continuous friction heat, leading to thermal deformation and changes in blade gaps. Uncontrolled thermal expansion will cause particle size distribution offset and unqualified large particle content, seriously affecting batch product quality. Our three series of ceramic classification wheels are optimized with ultra-low thermal expansion formulas to maintain ultra-stable classification precision under long-term high-temperature operation:Zirconia classification wheel: 9.6×10⁻⁶/K, minimal high-temperature deformation;Alumina classification wheel: 7.2×10⁻⁶/K, stable blade spacing;Silicon carbide classification wheel: 4.0×10⁻⁶/K, best thermal stability.Cooperated with our professional micron-level precision processing technology and strict dynamic balance calibration, our ceramic classification wheels always maintain standard blade gaps and stable operating status, effectively ensuring consistent powder particle size distribution and excellent batch stability during long-cycle and high-intensity continuous production.

2.4 Super Wear Resistance & Lower Comprehensive Cost

Lithium battery cathode and anode powder features high hardness and fast flowing speed, causing severe scouring and abrasive wear on classification wheels. Traditional metal and plastic wheels have poor wear resistance, only lasting several weeks to a few months. Frequent replacement leads to repeated production shutdowns, low operating efficiency and high comprehensive maintenance costs. Sanxin integrated high-temperature sintered ceramic wheels deliver 3+ times longer service life than traditional metal and plastic alternatives, greatly improving production continuity.Alumina: HRA85 high hardness, excellent cost performance and stable wear resistance, perfectly suitable for standardized mass production of conventional lithium battery powder;Zirconia ceramic classification wheel: HRA88 ultra-high hardness plus excellent fracture toughness, effectively resisting strong powder impact and scouring wear, ideal for high-load precision classification scenarios;Silicon carbide: HRA93–96 ultra-high hardness and 2600HV+ Vickers hardness, top-level wear and high-temperature resistance, exclusively applicable for ultra-hard silicon-carbon anode powder and long-term uninterrupted production.The significantly extended service life effectively reduces accessory replacement frequency, avoids economic losses caused by frequent equipment shutdowns, and greatly lowers the overall spare parts and maintenance comprehensive production costs for lithium battery material manufacturers.

3. Customized One-Stop Classification Solutions

Universal standard classification wheels cannot fully adapt to diversified classification equipment models and different powder material characteristics in the new energy industry. Sanxin provides professional scenario-based customized one-stop classification solutions. Our technical team accurately matches the optimal ceramic material and optimizes core parameters including blade quantity, thickness, radian and installation size according to customer’s actual equipment parameters, powder hardness, particle size characteristics and operating working conditions. We also support small-batch trial production and rapid performance verification, effectively shortening customer debugging cycles and reducing trial-and-error risks in new process mass production. In addition, our production cycle is controlled within 20-30 days, ensuring efficient delivery to meet customers' mass production schedules.

4. Conclusion

With the continuous upgrading and increasingly stringent precision standards of global lithium battery manufacturing, high-precision, zero-pollution, long-life and low-consumption wear-resistant ceramic classification wheels have become indispensable core accessories for high-end cathode and anode material production. Backed by mature full-process independent production capabilities, ultra-stable product performance and flexible customized service advantages, Sanxin New Materials provides cost-effective and reliable ceramic classification wheel solutions for global new energy enterprises, helping customers realize high-efficiency, low-cost and high-quality lithium battery powder standardized production.