Qingdao EPIC Powder Machinery Co., Ltd.

29/05/2026

Compared with traditional modification equipment, the Pin Mill has a high-speed, relatively rotating needle disk inside, where the powder undergoes high-frequency shearing, collision, and turbulence.

Value: Modifiers (such as stearic acid and coupling agents) are instantaneously atomized within the Pin Mill and undergo molecular-level uniform chemical coating with the surface of calcium carbonate particles at extremely high linear velocities.

Ultrafine calcium carbonate, at the micron and submicron scales, readily forms "pseudo-particles" (agglomerates) due to its extremely high surface energy.

Pin Mill's powerful dispersing (de-agglomeration) function can completely break down agglomerated calcium carbonate while simultaneously coating and modifying it, ensuring the finished product has extremely high activation rate and excellent oil absorption value control.

EPIC Powder is a Top 3 leading company in China's powder processing and modification equipment field. We are not only equipment manufacturers but also one of the standard setters for highly complex powder modification processes. For many years, EPIC has consistently been at the forefront of powder technology in China, representing the highest level of Pin Mill manufacturing technology currently available in China.

27/05/2026

Why we choose air classifier for caco3 powder?

1. Strict control of large particles, eliminating "blown film breakage" and "coating scratches": The vertical structure utilizes the opposing balance between the vertically upward airflow and the centrifugal force of the rotor impeller. Because the direction of gravity aligns with the main airflow direction, coarse particles exhibit excellent settling stability, eliminating the possibility of "short circuits" or coarse particle leakage.

Industry value: The produced D97 is extremely precise. For example, products supplied to the high-end plastic film industry with a D97 of 8 microns can completely block large particles, thoroughly preventing downstream customers from experiencing fiber breakage, breakage, or particle scratches on the coating surface during blown film production.

2. Narrow particle size distribution (PSD), enhancing the overall performance of fillers: The flow field distribution within the vertical classifier chamber is symmetrical and uniform, ensuring consistent residence time of powder within the classification zone.

Industry value: The classified calcium carbonate powder has a very narrow particle size distribution (i.e., the powder particles are very uniform in size). In the rubber and modified plastics industry, narrow-distribution fillers provide better bulk density and processing flowability, while avoiding excessive oil absorption (too much ultrafine powder will absorb a large amount of resin/additives), helping customers reduce production costs.

3. Low system energy consumption, increasing the overall capacity of the entire grinding line: The vertical classifier has a relatively low flow resistance design, and the material is fluidized in the classification zone, resulting in extremely high classification efficiency (typically exceeding 80%).

Industry value: When used in conjunction with vertical mills, ring roller mills, or ball mills in closed-loop circulation, it can quickly extract qualified fine powder that has reached the micron level, preventing the material from being "over-ground" within the mill. This not only increases the system's finished product output but also significantly reduces the overall power consumption per ton of powder.

25/05/2026

Three roller coating machines for calcium carbonate, Stearic Acid Coating Process

What is the applications of coated calcium carbonate?
Modified calcium carbonate treated by this machine forms a stable organic cladding structure, significantly improving its compatibility, dispersibility, and mechanical properties in:

Plastics & Polymers (PVC pipes, profiles, PP masterbatch, engineering plastics)
Rubber & Elastomers (Tires, cables, rubber sheets)
Coatings, Paints & Adhesives

The Three-Roller Powder Coating Machine is a highly efficient, continuous surface chemical modification system. By utilizing three triangularly arranged modification chambers and high-speed rotating rotors, it creates a powerful gas-solid vortex flow. This fluidization ensures that the powder and the modifier (such as stearic acid) are fully de-agglomerated and perfectly blended.

Key Features & Advantages：
High Coating Rate & Activation Index: Achieves a stearic acid coating rate of over 95%–99% and an activation rate of up to 98%+, drastically reducing the oil absorption of modified CaCO3.

Self-Friction Heat Generation: The high-speed collision and shear friction between the rotor and powder generate enough heat for the coating reaction. No independent external heating or cooling units are required, significantly lowering operational costs (saving up to 40% energy compared to traditional batch mixers).

Continuous 24/7 Production: Purpose-designed for large-scale industrial mineral processing, supporting a throughput from 500 kg/h up to 7,500 kg/h depending on the model (CRM-3, CRM-6, CRM-9).

Perfect Dispersion, No Agglomeration: Combining both surface coating and particle dispersing functions, it effectively eliminates "soft agglomerates," allowing for direct packaging without secondary screening.

Eco-Friendly Negative Pressure Operation: The entire production line runs under negative pressure with a pulse bag dust collector, ensuring zero dust leakage and a clean working environment.

Wide Applications：
Modified calcium carbonate treated by this machine forms a stable organic cladding structure, significantly improving its compatibility, dispersibility, and mechanical properties in:

Plastics & Polymers (PVC pipes, profiles, PP masterbatch, engineering plastics)
Rubber & Elastomers (Tires, cables, rubber sheets)
Coatings, Paints & Adhesives

The Three-Roller Powder Coating Machine is a highly efficient, cont...

22/05/2026

Fluidized Bed Opposed Air Jet Mill incorporates dense phase micronization using turbulent, free jets in combination with high efficiency centrifugal air classification within a common housing. This combination allows for enhanced comminution by high probability particle-on-particle impact for breakage and a high degree of particle dispersion for improved separation.

Low-temperature pulverization without medium, especially suitable for heat-sensitive, low-melting materials.
Control particle sizes precisely, available particle size D50:1~25μm.
Grinding in a complete closed system, no dust, low noise, clean and environmentally friendly.
Jet Milling is an effficient way to mill or micronize various chemicals, polymers, ceramics and other friable materials. Abrasive and temperature-sensitive products can be finely ground with minimum contamination. The simple, easy-to-clean, cost-effective design offers precise top size control with narrow size distributions in the 95% below 5 um to 95% below 70 um size range. Load cells are used to precisely control mill load for optimum grinding efficiency and/or product size distribution control.

Contact me and learn more: [email protected]

20/05/2026

📌 Looking for an efficient way to pulverize waste cardboard or paperboard into fine fiber powder? In this video, we put our industrial Turbo Mill to the test with waste corrugated cardboard!

We are a professional manufacturer of ultra-fine powder processing equipment. We provide tailored grinding and classifying solutions for battery materials, pharmaceuticals, chemicals, and eco-recycling industries worldwide.

📧 Contact us for a free material grinding test or quotation:
Sales Email: [[email protected]]
WhatsApp/WeChat: [008615762272120]
Website: [ https://www.epic-powder.com/]



https://youtu.be/BxMXxSN-MXw

📌 Looking for an efficient way to pulverize waste cardboard or paperboard into fine fiber powder? In this video, we put our industrial Turbo Mill to the tes...

18/05/2026

Here is our Air Classifier Mill for biochar pulverizing

🔍 Experimental Equipment and Principles: This experiment used a classifier mill with high-efficiency airflow classification. It integrates pulverization and classification, and by adjusting the speed of the classifier wheel, the particle size distribution (D50/D90) of the biochar powder can be precisely controlled, perfectly solving the problems of uneven particle size and easy material blockage in traditional mills.

🌱 Application Prospects of Ultrafine Biochar: The specific surface area of ​​ultrafine biochar increases dramatically, making it extremely valuable in soil improvement, heavy metal adsorption, supercapacitor battery materials, and environmentally friendly carbon catalysts!

💬 Do you have any questions about biochar pulverization? Or would you like to see us pulverize other materials? Feel free to leave a comment below!

13/05/2026

Here is our Air Jet Mill for Talc Powder

Let's Learn More About Applications of D50 2.5-micron Ultrafine Talc Powder

At this fineness, talc powder is not only a filler but also a functional modifier:

1. High-end Coatings and Paints:

Function: Provides excellent hiding power, leveling, and weather resistance. The 2.5-micron fineness significantly improves film smoothness and gloss, and prevents sedimentation.

Applications: Automotive primers, anti-corrosion coatings, industrial wood coatings.

2. Modified Plastics and Polymers:

Function: Ultrafine powder acts as a nucleating agent, enhancing the tensile strength, impact resistance, and heat distortion temperature of plastics.

Applications: Automotive interior parts (PP modified), appliance housings, precision electronic components.

3. Paper Industry (Specialty Paper):

Function: As a high-grade filler and coating pigment, it improves paper smoothness, opacity, and printability.

Applications: Coated paper, high-grade cultural paper, thermal paper.

4. Rubber Industry:

Function: Improves the density, acid and alkali resistance, and electrical insulation of rubber products.

Applications: Special cable sheaths, precision sealing rings.

5. Daily Chemical and Pharmaceutical Carriers:

Function: Extremely high fineness provides a silky smooth feel.

Applications: Cosmetic fillers, pharmaceutical tablet lubricants (must meet pharmacopoeia standards).

08/05/2026

The future of specialty graphite will be towards being 'fineer, purer, and stronger.' If you are looking for efficient grinding solutions for specialty graphite applications, please contact us to explore the infinite possibilities of carbon materials together.

We provide our customers with high-standard, high-tech air jet mills, helping them achieve industry technology upgrades and material breakthroughs.

In the field of efficient grinding, air jet mills are a major contributor to dry grinding and pulverization. Contact us to learn more about air jet mills.

Specialty Graphite's Demand for Needle CokeParticle Size: Specialty graphite typically requires a D50 of 5 to 25 micrometers and an extremely narrow particle...

05/05/2026

Why pin mill for calcium carbonate powder is better?
The core purpose of choosing pin mills for calcium carbonate modification is not only for "mixing," but also to utilize their high-energy impact force to break up agglomerates, thereby achieving a high-end modification effect of low additives, high coating, and strong dispersion. This is crucial for companies producing high-performance plastic masterbatches, cable materials, and rubber fillers to enhance their core competitiveness.

03/05/2026

Here is our ball mill and classifier production line for basalt

1. Precise and Uniform Particle Size Control

Equipped with a Classifier: The closed-loop circulation system, through a high-precision impeller classifier, can strictly control the particle size distribution (D50, D97) of the finished product.

2. High Processing Capacity, Suitable for Large-Scale Production

Compared to other ultrafine grinding equipment, the ball mill has an extremely high single-unit processing capacity, capable of meeting the needs of industrial-scale production of tens or even hundreds of tons per day. Its simple and robust structure allows for long-term continuous operation with relatively low maintenance frequency.

3. Round Particle Shape (High Sphericity)

Grinding Principle: The ball mill utilizes the peeling and impact action of the grinding media to cause continuous friction between basalt particles during the grinding process, resulting in powder particles with a more rounded shape.

4. High Wear Resistance, Controllable Maintenance Costs

Inner Lining Protection: To address the high abrasiveness of basalt, the ball mill can be lined with alumina ceramic, silica, or high-manganese steel liners. Ceramic balls or steel balls can be selected according to the purity requirements of the finished product, effectively reducing the wear rate of the equipment itself. 5. Mature Technology and High Degree of Automation

Simple Integration: The entire system (feeding-ball milling-classification-dust collection) is easily automated with PLC control, requiring minimal manual intervention.

Versatile: By simply adjusting the classifier speed, different specifications of finished products can be flexibly switched without changing the ball mill configuration.

01/05/2026

Here is our air classifier mill for calcium carbonate powder from Greece.

After communicating with Greek clients, we found that they typically make their final choice based on the following five dimensions:

A. Product Added Value. Raymond Mill: Suitable for producing low-end building putty powder and power plant desulfurization powder. These products face intense price competition, have low profit margins, and rely on economies of scale.

Classifying Mill: Suitable for producing high-end paper fillers, plastic masterbatches, and powders for coatings and latex paints. These industries require D97 or even D50 specifications, and the powder produced by the classifying mill commands a higher premium.

B. Fineness and Consistency. If downstream customers (such as automotive paint or high-end film manufacturers) have extremely strict requirements for "coarse particle removal," Raymond mills often cannot meet the standards. Classifying mills ensure that 100% of the material passes the set fineness threshold, avoiding scratches or product defects.

C. Footprint and Automation. Classifying Mill: Compact structure, integrating grinding, classification, and conveying. Modern classifying mills mostly use PLC automatic control, allowing fineness to be changed via frequency conversion speed regulation without disassembly for adjustment. Raymond Mill: Typically occupies a larger area, and adjusting fineness (such as replacing fan blades or adjusting baffles) is relatively cumbersome.

D. Energy Efficiency. Low Fineness: When producing coarse powder below 325 mesh, Raymond mills have a more advantageous energy efficiency ratio. High Fineness: Once the fineness requirement exceeds 600 mesh, the circulation efficiency of Raymond mills is extremely low; in this case, the energy efficiency ratio (kWh/t) of classifying mills is actually lower.

E. Maintenance and Wear. Calcium carbonate (especially marble and calcite) causes significant wear on equipment. The internal wear-resistant linings (such as ceramic or high-hardness alloys) of a classifying mill are relatively easy to replace. The grinding rollers and grinding rings of a Raymond mill are heavy consumables; replacement frequency and labor intensity are key considerations for customers.

If you have any questions about choosing between a Raymond mill and a classifying mill, contact me, and I will help you make the final decision.