In an era when the new energy, new materials and intelligent manufacturing industries are iterating rapidly, nanoscale particle grinding has become a core step that determines product performance. From raising the energy density of new-energy battery materials, to optimizing the color uniformity of inks and coatings, to breakthroughs in the conductivity of photovoltaic electronic pastes — all of these create a rigid demand for nano-grinding equipment offering "high flow, high precision and low energy consumption."
Looking at market trends, three core demands are reshaping industry standards:
(1) Capacity upgrade: as industries such as new-energy batteries and PV modules move into large-scale production, the hourly throughput of a single machine has jumped from the traditional tens of liters to several hundred liters, making "high-flow continuous production" a baseline requirement.
(2) Precision breakthrough: the particle size D50 of battery cathode materials (such as lithium iron phosphate and ternary materials) must be held stably at 1–5 μm, and the particle dispersion of PV silver paste must reach 99%; the particle-size distribution deviation of conventional grinding equipment can no longer satisfy these requirements.
(3) Intelligent adaptability: demand for flexible, many-variety/small-batch production is growing, so equipment must switch recipe parameters quickly and link seamlessly with intelligent production lines, realizing a full closed loop of "online monitoring – real-time adjustment – data traceability."
Against this background, the pin-type high-flow nano bead mill — with its unique combination of "high-energy-density grinding + continuous production" — has become the key bridge between "laboratory formulation" and "industrial-scale manufacturing." Its level of technical innovation directly determines the competitiveness of downstream industries.
Working Principle and Equipment Structure:
An All-New Design Breaks the Traditional Grinding Bottleneck
The Longxin Intelligent pin-type high-flow nano bead mill is built around the core design concept of "modular grinding assembly + new-type flow-through screen separation." It completely breaks through the structural limitation of the conventional bead mill's integrated "grinding–separation" design, allowing "efficient grinding" and "precise separation" to be optimized independently.
(1) Core working principle
After the material enters the grinding chamber through the feed system, the "turbine–pin composite structure" generates a three-dimensional motion path of "circumferential vortex + radial impact": the turbine assembly drives the grinding media (0.3–0.5 mm zirconia beads) into a high-speed circumferential circulation, while the radial protrusions of the pins produce high-frequency impacts — so material particles are progressively refined under the triple action of shear, collision and extrusion.
The separation stage uses a screen with a larger surface area: it delivers higher flow capacity without compromising quality, resolving the "screen clogging" pain point of conventional equipment.
(2) Key structural components
Silicon carbide grinding chamber: made of silicon carbide (hardness HV1800+), which offers outstanding wear resistance and thermal conductivity. It guarantees long-term wear resistance of the chamber (service life more than 5 times that of conventional stainless steel) and rapidly conducts away the heat generated by grinding, controlling the temperature rise of the chamber.
Turbine–pin assembly: the pins are made of tungsten carbide (hardness HRC90) with a specially coated surface. At high rotational speeds (300–1800 r/min) they produce a uniform energy density distribution, preventing particle agglomeration caused by localized over-grinding.
Large screen surface area: a larger screen surface area keeps the pressure inside the chamber lower, which reduces temperature problems and lets you achieve higher production efficiency.
Intelligent control system: integrates a PLC module with temperature and pressure sensors, collects multiple process parameters in real time, and automatically adjusts speed, flow rate and other parameters through an algorithmic model.
WSP-500 High-Flow Nano Bead Mill — Outline Drawing
Performance Features and Technical Improvements: From "It Can Grind" to "Grinds Well, Grinds Economically, Grinds Steadily"
Through ten years of technical iteration, Longxin Intelligent has achieved five core breakthroughs over the conventional pin-type bead mill, with performance indicators comprehensively exceeding industry levels:
(1) Grinding efficiency: a 2–3× leap in capacity over conventional equipment
Relying on "modular grinding assembly + new-type flow-through screen separation," the effective grinding time of the material inside the chamber rises to 1.8 times that of conventional equipment, while the screen's flow-through area is 40% larger than a conventional structure — ultimately delivering effective capacity 2–3 times that of an ordinary bead mill.
(2) Particle size control: precise D50 deviation control
The composite turbine–pin structure subjects material particles to uniform shear force. Combined with 0.3–0.5 mm small-diameter zirconia beads (roundness ≥95%), it holds particle size D50 stably within 100 nm–2 μm, with a particle-size distribution width better than the industry average. In electronic ceramic ink production, the standard deviation of the particle-size distribution can be controlled to ___ , ensuring the ink prints smoothly and with consistent color.
(3) Separation technology: a screenless design that solves two major industry pain points
The centrifugal, screen-free separation design overcomes the two biggest problems of conventional screen separation:
Clogging: it avoids screen clogging caused by high material viscosity or fibrous impurities, extending continuous operating time from the conventional 8 hours to 72 hours.
Contamination risk: by eliminating contact between a metal screen and the material, the metal impurity content of the ground material is ___ , meeting the purity requirements of industries such as new-energy materials and semiconductors.
(4) Energy consumption and cost: the economics of lower specific energy consumption
Cost optimization is achieved through three energy-saving design features:
Silicon carbide's thermal conductivity is 3 times that of stainless steel; together with the chamber-wall cooling system, the machine's operating temperature can be controlled at ___ , eliminating the need for an additional heat exchanger and cutting energy consumption by ___ .
Small-diameter zirconia beads grind more efficiently, reducing media consumption at the same capacity.
The extremely long service life of the wear-resistant materials reduces equipment maintenance costs by ___ .
(5) Intelligence and adaptability: from standalone production to line-level coordination
Intelligent linkage: the mill can connect to an MES system. Flow rate, speed and other parameters are set via the PLC, and online particle-size monitoring data is fed back to the central control room in real time, enabling closed-loop control of "particle size deviation – automatic parameter adjustment."
Custom parameter packages: pre-stored process recipes cover different material systems — cathode materials such as layered oxides and Prussian blue, anode materials such as hard carbon and silicon carbon, plus PV silver paste and UV inks — so parameter switching at changeover takes very little time.
Multi-solvent compatibility: supports water-based, oil-based and solvent-based systems; the grinding chamber material can be changed to polyurethane, silicon nitride and others on request, meeting the hygiene requirements of the food and pharmaceutical industries (for example, the 316L stainless steel option).
Industry Fit: Customized Grinding Solutions for Multiple Sectors
The Longxin Intelligent pin-type high-flow nano bead mill has reached mature application across five major industries and has become core production equipment for leading enterprises:
(1) New-energy battery materials: "low-temperature grinding" solutions for lithium iron phosphate and ternary materials (discharge temperature ≤55 °C) prevent high-temperature oxidation of the material; for the high hardness of silicon-carbon anodes, a combination of tungsten carbide pins and 0.3 mm zirconia beads achieves stable D50 control at 100 nm.
(2) Inks and coatings: in UV ink production, pigment particles can be ground to 100–300 nm, raising the gloss of the cured coating by 20%; in water-based wood lacquer grinding, the particle-size distribution is narrowed, solving the "flooding and floating" problems of conventional equipment.
(3) Photovoltaic electronic pastes: in silver paste grinding, the "low speed + high energy density" design ensures the silver particles disperse uniformly without oxidizing, improving paste conductivity by 15%.
(4) Fine chemicals: in nanocatalyst grinding, a particle size of D50 ≤500 nm is achieved, improving catalytic reaction efficiency by ___ ; in pigment dispersion, the tinting strength of the color paste reaches 1.3 times that of conventional processes.
(5) Food and pharmaceuticals: a food-grade zirconia grinding chamber achieves a high cell-wall breaking rate in nanoscale TCM powder grinding, with improved dissolution of active ingredients and low residual metal impurities.
Defining a New Standard for Nano-Grinding Through Technological Innovation
Through three core technologies — modular grinding assemblies, new-type flow-through screen separation, and intelligent linkage — the Longxin Intelligent pin-type high-flow nano bead mill redefines the efficiency, precision and economics of nanoscale grinding. From laboratory trials to industrial-scale production, from a single material to multiple material systems, we are consistently guided by "equipment performance matched to industry needs," delivering "stable, efficient and intelligent" grinding solutions for strategic emerging industries such as new energy and new materials.
Looking ahead, Longxin Intelligent will continue to deepen its work in nano-grinding technology. Through deep integration of material innovation, algorithm optimization and production-line integration, we will help more industries break through the "particle size bottleneck" and achieve leapfrog gains in product performance.
