HMK-1901 Planetary Ball Mill

Overview
HMK-1901 Planetary Ball Mill is a lab ball mill designed and manufactured for requirement of fine milling industry.It integrates all traditional mixing and size reduction process and at the same time HMK-1901 planetary ball mill uses high centrifugal forces to generate high pulverization energy. It works efficiently and takes very short grinding times.

Specifications
Working Principle: impact and friction force
Compatible Grinding Jars: (50ml /100ml) * 4
Max Feeding Capacity: 2/3 capacity of the grinding jar
Operation Mode: 2 or 4 grinding jars working simultaneously
Feeding size: Soil materials < 10mm, others materials < 3mm
Discharging size: down to 0.1μm
Sample Type: hard, medium-hard, soft, fibrous, brittle, moist, tough
Rotational Speed of Grinding Jar: 800rpm
Rotational Speed Ratio (planetary disk/jar): 1 : 2
Drive Mode: gear drive and belt drive
Speed Control: stepless speed regulation
Electrical Details: 110V/220VAC, 50/60Hz, 0.25 kW
Max Continuous Grinding Time (full-load): 72hours
Weight (Net /Gross): 30KG /35KG
Dimension (L*W*H): 502*300*296mm
Package Size: 570*360*420mm

Features
• Elegant design, easy to operate
• Ideal for wet or dry grinding operation
• Energy and speed control enables reproducible results
• Automatic and programmable control with LED display
• Multiple grinding modes to choose
• High uniformity and excellent repeatability
• Fast rotational speed, high efficiency and fine granularity
• Programmable interval and pause times
• Four samples with different sizes and materials in one experiment
• Stepless speed regulation; reversing function
• Large range of materials available for grinding media
• Gear-drive offers an effective solutions to problems caused by belt driving, such as belt creep and belt abrasion
• Low center of gravity, good rigidity, compact structure, low noise, safe and reliable operation, no pollution and small wear
• Cooling of the grinding chamber with a built-in fan for long grinding times

Applications
Planetary ball mills are widely applied to production fields of geology, mining, metallurgy, electronics, building materials, ceramics, chemicals, light industry, medicine, environmental protection, such as electronic ceramics, structural ceramics, magnetic material, lithium cobalt oxides, lithium manganate, catalyst, fluorescent powder, long afterglow luminescent powder, rare earth polishing powder, electronic glass powder, fuel cell, ceramic capacitor, oxygen zinc varistor, piezoelectric ceramics, nanometer materials, wafer ceramic capacitor, MLCC, thermistor(PTC,NTC), ZnO varistor, valve disc of arrester, strontium titanate ring varistor, ceramic filter, dielectric ceramics, piezoelectric transducer, piezoelectric transformer, chip resistor, thick film circuit, potentiometer, alumina ceramics, zirconia ceramics, ZnO powder, cobaltous oxide powder, Ni-Zn ferrite, Mn-Zn ferrite, and etc.

Principle
Planetary ball mill has four ball grinding tanks installed on one turntable. When the turntable rotates, the tank axis makes planetary movements, the balls and samples inside the tanks are impacted strongly in high speed movement, and samples are eventually ground into powder. Various kinds of different materials can be ground by the mill with dry or wet method. The size of ground powder can be reduced to as small as 0.1 micrometer.
The main disc is driven by a motor, the motor rotates and drives the disc rotates. There are four milling pots fixed on the main disc, they are under rotation and revolution at the same time. There are milling balls inside the milling pots and mill the sample to powder.

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