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360° Rotating Planetary Ball Mill OPBM-20 4kW

360° Rotating Planetary Ball Mill OPBM-20 4kW

$8,890.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

360° rotating planetary ball mill OPBM-20 4kW 385mm 0-430 rpm anti-sedimentation & anti-adhesion for lab & industrial nano grinding. Order now.

SKU: AFOPBM20
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Description

OPBM-20 360° ROTATING PLANETARY BALL MILL 4KW Φ385MM

LABORATORY GRADE EQUIPMENT

Working Principle
Based on a vertical planetary ball mill, this equipment adds a planetary disk overturning function. While performing planetary motion, the planetary disk and grinding jars can carry out 360° tipping overturning in three-dimensional space, realizing multidimensional and multidirectional movement of the jars. This enhances the disordered motion of grinding balls and materials, enabling 360° grinding inside the jar for finer and more uniform powder, and solves the problems of material sedimentation and wall adhesion. The listed price is for the main machine only; grinding jars and grinding balls must be ordered separately.

Applications
Widely used in geology, mining, metallurgy, electronics, building materials, ceramics, chemical industry, light industry, medicine, environmental protection and other fields. Suitable for the production of electronic ceramics, structural ceramics, magnetic materials, lithium cobalt oxide, lithium manganate, catalysts, phosphors, long afterglow luminescent powders, rare earth polishing powders, electronic glass powders, fuel cells, zinc oxide varistors, piezoelectric ceramics, nanomaterials, ceramic disc capacitors, MLCC, thermistors (PTC, NTC), ZnO varistors, dielectric ceramics, alumina ceramics, zirconia ceramics, zinc oxide powder, cobalt oxide powder, NiZn ferrites, MnZn ferrites and other products.

Product Features
  • Professional industrial exterior design with lean manufacturing and exquisite workmanship.
  • Machined parts adopt CNC technology; transmission gears are precision-made from special materials, ensuring stable, safe and low-noise high-speed operation.
  • The overturning motor features brake locking, allowing stopping at any angle safely and reliably.
  • Equipped with a microcomputer touch screen for convenient operation and a simple, intuitive interface.
  • Supports forward and reverse alternating control with timer and power-off memory functions.
  • Optional integrated microcomputer touch-screen PLC control panel.

Technical Parameters
Model Jar Rotation Speed (rpm) Jar Holder ID (mm) Motor Power Jar Orbit Diameter (mm) Overall Dimensions (mm) Net Weight (kg)
OPBM-0.4 0~870 80 250W Φ140 900×570×666.5 136
OPBM-(2-6) 0~670 134 0.75KW Φ234 1330×810×860 305
OPBM-(8-12) 0~580 162 1.5KW Φ275 1360×850×930 430
OPBM-16 0~510 182 3KW Φ320 1530×1018×1100 580
OPBM-20 0~430 222 4KW Φ385 1700×1210×1300 1180
OPBM-40 0~390 250 5.5KW Φ430 1900×1450×1480 1430
OPBM-100 0~240 326 11KW Φ578 2939×1680×2450 3900

General Technical Parameters
Item Specification
Transmission Mode Gear drive
Working Mode Two or four grinding jars working simultaneously
Max. Loading (Material + Grinding Balls) Two-thirds of jar volume
Jar Volume 0.05L–25L per jar, total 0.2L–100L
Feed Size Soil ≤10mm; others ≤3mm
Discharge Size Down to 0.1μm (varies by material and process)
Speed Ratio (Revolution : Rotation) Refer to main parameters
Rotation Speed Refer to main parameters
Speed Control Stepless speed regulation by brand inverter

Standard Configuration
Item Description
Main grinding unit 1 pc
Grinding jars 4 pcs of 5 L grinding jars (Order Separately)

Available Materials: Al₂O₃  PU  PTFE  Ceramic  SS  Nylon
Grinding balls 1 set of grinding balls (Order Separately)

Available Materials: WC-Co  Al₂O₃  PU-Fe  Agate  YSZ  304SS

Supplementary Products
Grinding Balls: We also supply various grinding balls: stainless steel balls, zirconia balls, alumina balls, PU balls, carbon steel balls, tungsten balls, agate balls, cemented carbide balls, silicon nitride balls, high wear-resistant steel balls, manganese steel balls, nylon balls, cemented carbide, glass and other special metal materials.

Grinding Jars: We also provide grinding jars of various materials: agate, alumina corundum ceramic, zirconia ceramic, silicon nitride ceramic, silicon carbide ceramic, stainless steel, wear-resistant steel, manganese steel, nylon, polyurethane, cemented carbide, crystal glass, etc.

Core Parameters & Characteristics of Grinding Jars
Category Product Name Core Material / Technology Model Examples (Volume) Density Hardness Wear Resistance Key Features & Advantages Applicable Materials Cautions & Contraindications
Metal 304 Stainless Steel Grinding Jar High-quality SUS304 stainless steel 50ml, 100ml, 250ml, 500ml, 1L, 2L, 4L, 5L, 10L, 20L, 25L ~7.9 g/cm³ HRC 20–30 Medium Sturdy, durable, cost-effective; customizable vacuum jar; standard laboratory choice. Materials insensitive to metal ions: chemicals, alloy powders, soil, ores. Not for high-purity materials sensitive to Fe/Cr/Ni (battery materials, high-end ceramics); strong acids/alkalis.
Cemented Carbide Grinding Jar WC-Co sintered, ultra-wear-resistant 50ml, 100ml, 250ml, 500ml, 1L, 1.5L, 2L 14.5–15.0 g/cm³ HRA 88–93 Top “King of Grinding”: extremely high hardness, minimal wear, long service life, high ROI. Ultra-hard materials: SiC, diamond, carbide powder; ultra-fine grinding of high-value materials. Avoid severe impact; high procurement cost.
Ceramic Zirconia Grinding Jar Yttria-stabilized zirconia, high-density sintered 50ml, 100ml, 250ml, 500ml, 1L, 1.5L, 2L, 2.5L, 3L, 4L, 5L 6.0 g/cm³ HV ~1250 Excellent High-purity all-round performance; zero metal contamination, high hardness, toughness, corrosion resistance. Lithium battery materials, electronic ceramics, pharmaceutical nanopowders, high-end pigments, catalysts. Avoid extreme thermal shock.
Alumina / Corundum Grinding Jar High-purity α-Al₂O₃ sintered 25ml, 50ml, 100ml, 250ml, 500ml, 1L, 1.5L, 2L, 2.5L, 3L 3.6–3.9 g/cm³ Mohs 9 Excellent High hardness, heat resistance, economical; wear resistance second only to zirconia. Ceramic glazes, refractories, quartz, feldspar and other medium-high hardness minerals. Not for Al-sensitive materials; fragile, avoid impact.
Polymer Nylon Grinding Jar Pure white PA66 nylon, precision machined 25ml, 50ml, 100ml, 250ml, 500ml, 1L, 1.5L, 2L (large volume with stainless steel outer shell) ~1.15 g/cm³ Low Good Lightweight, metal-free, rust-proof, corrosion-resistant; ideal for iron-sensitive wet grinding. Precious metal powders, high-grade pigments, coatings, pharmaceuticals and iron-free materials. Avoid temperatures <120°C, acids/alkalis, solvents, high-hardness materials.
PTFE Grinding Jar Pure PTFE integrally machined 25ml, 50ml, 100ml, 250ml, 500ml, 1L, 1.5L, 2L (large volume with stainless steel outer shell) ~2.2 g/cm³ Low Good “King of Corrosion Resistance”: chemically inert, acid/alkali-proof, non-stick, easy to clean. Strong acid/alkali systems, reactive chemicals, ultra-pure material synthesis and grinding. Avoid impact grinding of hard materials; long-term use <250°C.
Polyurethane (PU) Grinding Jar High-wear PU, integrally cast 100ml, 250ml, 500ml, 1L ~1.2 g/cm³ Low Excellent (elastic wear-resistant) High elasticity, shock absorption, noise reduction; tight seal prevents leakage and wall adhesion. Electronic pastes, battery slurries, inks, soft material mixing, dispersion and homogenization. Avoid hard material grinding; high-temperature environments.
Natural Agate Grinding Jar Natural agate 50ml, 100ml, 150ml, 250ml, 300ml, 400ml, 500ml, 1000ml, 2000ml ~2.65 g/cm³ Mohs 7 Good “Gold Standard” for laboratory analysis; 100% metal-free for accurate testing. Geology, environmental, agricultural sample preparation; food and drug testing; high-purity research. Avoid grinding materials harder than Mohs 7; severe impact.
Functional / Composite Planetary Vacuum Grinding Jar Stainless steel body with high-vacuum sealing system Customizable (50ml–2L typical) Same as main material Same as main material Same as main material Inert atmosphere protection; vacuum or Ar/N₂ filling; anti-oxidation, anti-volatilization. Active metals (Mg, Ti, Li alloys), oxidizable materials, low-melting materials, dangerous goods. Avoid seal aging; proper operation to maintain vacuum.
Stainless Steel Lined Zirconia Jar Stainless steel shell + thick-wall zirconia liner 2.5L, 3L, 4L, 5L, 10L, 15L, 20L, 25L Composite structure High-hardness liner Excellent (liner) Strong and tough combination for large-capacity high-purity grinding; strength + purity. Mass production of high-purity materials: battery materials, electronic ceramic powders. Avoid liner stress damage under extreme conditions (low probability).
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

Store the ball mill in a dry, climate-controlled environment to prevent corrosion of electrical components and mechanical wear. Ensure the installation surface can support the 1180 kg dead weight and anchor the machine to avoid tipping during operation.

  • Electrical Safety: Ground the equipment per local electrical code and avoid exposure to conductive dust or moisture to prevent short circuits.
  • Mechanical Hazard: Lock the overturning brake before loading or unloading grinding jars to prevent unintended rotation.
  • Material Compatibility: Do not process pyrophoric or explosive materials unless the grinding jar is rated for inert atmosphere and sealed under inert gas.
  • Ventilation: Operate in a well-ventilated area or under a fume hood when grinding materials that produce hazardous dust or vapors.

Initialize the mill by verifying jar integrity and setting parameters via the touchscreen. Execute the grinding cycle with the overturning function enabled to achieve 360° particle reduction.

Required Equipment: Microcomputer touch screen controller, Grinding jars with sealing gaskets, Grinding media (balls or rods)

  1. Inspect and seal
    Inspect the grinding jars for cracks or wear, then load material and grinding balls up to two-thirds of jar volume and seal the lids tightly.
  2. Set rotation parameters
    Set the jar rotation speed (0–430 rpm) and grinding time using the microcomputer touch screen, and select forward or reverse alternating mode if required.
  3. Engage overturning brake
    Confirm the overturning motor brake is engaged before mounting jars onto the holders to prevent accidental tipping.
  4. Load jars into holders
    Secure the grinding jars into the jar holders and tighten the clamps evenly to ensure balanced rotation.
  5. Activate overturning
    Enable the 360° overturning function from the touch screen to allow the planetary disk to tip during operation.
  6. Start grinding cycle
    Initiate the grinding cycle and monitor the display for abnormal vibration, noise, or temperature rise.
  7. Unload after stop
    Allow the mill to come to a complete stop before disengaging the brake and removing the jars to avoid spillage or injury.

How does the 360° rotating design of the QXQM-20 affect its maximum grinding speed compared to conventional planetary ball mills with the same jar capacity?

The 360° rotating design limits the maximum jar rotation speed to 430 rpm for the QXQM-20, lower than smaller models like the QXQM0.4 at 870 rpm. This reduction accommodates the larger jar orbit diameter of 385 mm and the mechanical demands of the overturning mechanism, ensuring stable anti-sedimentation and anti-adhesion operation without compromising the ability to reach discharge fineness down to 0.1 μm.

What are the critical considerations when selecting grinding jar material for battery cathode materials like lithium cobalt oxide or lithium manganate in the QXQM-20 mill?

For battery cathode materials sensitive to Fe/Cr/Ni contamination, 304 stainless steel jars are explicitly contraindicated. The QXQM-20 should be equipped with high-purity ceramic jars such as zirconia or alumina, which provide the necessary hardness and wear resistance to avoid ion leaching while achieving the specified discharge fineness down to 0.1 μm, as stated in the jar compatibility table.

What are the infrastructure requirements for installing the QXQM-20 planetary ball mill, particularly regarding floor loading and electrical supply?

The QXQM-20 has a net weight of 1180 kg and overall dimensions of 1700×1210×1300 mm, necessitating a reinforced floor rated for that static load plus operational vibration. A dedicated electrical circuit is required for the 4 kW motor with inverter-driven stepless speed control, and adequate clearance must be maintained around the unit to safely accommodate the 360° overturning motion and gear drive system.

The Atomfair QXQM-20 360° Rotating Planetary Ball Mill delivers a 4KW motor and 385mm revolution diameter, enabling fine powder down to 0.1μm while its omnidirectional jar overturning effectively prevents sedimentation and adhesion during high-energy milling of ceramics and nanomaterials.

Positive

  • Anti-sedimentation and anti-adhesion via 360° overturning: The planetary disk overturns 360° in three-dimensional space, enhancing disordered motion of grinding balls and materials to eliminate material sedimentation and wall adhesion inside the jar.
  • High power and large orbit for industrial batch processing: A 4KW motor with 385mm revolution diameter supports jar volumes up to 25L per jar (total 100L), making it suitable for large-scale grinding of electronic ceramics, battery materials, and nanomaterials.

Trade-offs

  • Substantial weight and floor space requirement: With a net weight of 1180 kg and dimensions 1700×1210×1300 mm, this unit demands reinforced flooring and dedicated installation space, typical for industrial-scale milling equipment.
  • Limited feed size necessitates pre-processing: Feed size is restricted to ≤3mm for most materials (soil ≤10mm), requiring pre-crushing or milling of larger feedstocks before charging the mill.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

Additional information

Weight 1150 kg
Dimensions 170 × 1210 × 130 cm

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