‘NST’ Bench-top 2L Horizontal Planetary Ball Mill for Laboratory Glass Powder Grinding

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Description

Description
        AT A GLANCE

  • Fast comminution with rotational speeds up to 800 rpm
  • Loss-free grinding even below 1 μm
  • Uniform fine comminution of large sample amounts
  • Simple, ergonomic handling and easy cleaning
  • Grinding jars and balls in 10 different materials to suit all needs and avoidance of contamination through abrasion
      IDEAL FOR

  • Geology and Mineralogy
  • Ceramics
  • Chemistry
  • Biology
  • Pharmaceuticals
  • Metallurgy
  • Material Technology
  • Sample Preparation For Analysis

Overview

      Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of planetary ball mills result in very high pulverization energy and therefore short grinding times.

 

Working Principle
Comminution according to the Planetary Principle

The comminution of the material to be ground takes place primarily through the high-energy impact of grinding balls. To achieve this, the grinding jar, containing the material to be ground and grinding balls, rotates around its own axis on a main disk whilst rotating rapidly in the opposite direction. At a certain speed, the centrifugal force causes the ground sample material and grinding balls to separate from the inner wall of the grinding jar. The grinding balls then cross the jar at high speed and further grind the sample material by impact against the opposite jar wall. In addition, impact between the balls themselves on the sample material adds to the size reduction process.

The instrument can smash and blend various products of different materials and granularity with dry or wet methods. Minimum granularity of grinded products can be as small as 0.1 micron.

 

 

Features of Planetary Ball Mills
  • Elegant design, easy to operate
  • Ideal for wet or dry grinding application
  • 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
  • Digital display of the actual rotational speed of the grinding jar
  • Four samples with different sizes and materials in one experiment
  • Programmable interval and pause times and grinding sequences
  • Stepless speed regulation, reversing function
  • Smaller grinding jars also possible with an adapter
  • Gear-drive offers an effective solution to problems caused by belt driving
  • Grinding chamber with forced air ventilation
Technical Data
Working principle: impact, friction force
Applications: pulverizing, mixing, homogenizing, colloidal milling, mechanical alloying
Feed material: soft, hard, brittle, fibrous – dry or wet
Item No.: NST-P2000H
Max. feed size (depends on material): 10mm
Final fineness (depends on material): <1 µm
Max. sample quantity: 900ml
Rotational speed (main disk): 400r/min
Rotational speed (jars): 800r/min
Transmission ratio (disk / jars): 1:-2
Transmission standard: CE
Grinding modes: 16 modes programmable
Number of milling samples: 4 simultaneously
Materials of the grinding jars: SS304, SS316, nylon, PTFE, agate, zirconia, alumina, PU, WC
Number of grinding stations: 4 or 2
Ball mill type: horizontal
Compatible grinding jars: 250ml / 500ml
Materials of milling balls: SS, agate, zirconia, alumina, nylon, PTFE
Grinding ball diameter: 3/5/10/15/20mm
Compatibal ball weight 200-1000g
Grinding process: dry /wet grinding
Vacuum grinding: yes
Electrical details: 110/220V AC, 50/60Hz, 750W
Plug types: GB/EU/US/UK standard
Net weight: 106kg
Dimensions (W x D x H): 720*560*510mm
Noise level: 50dB
IP rank: IP30
Product standard: CE
Photo Gallery of Planetary Ball Mills

 

Material Data of Grinding Tools
Material Main component Density (g/cm3) Abrasion resistance Use for material to be ground
Agate SiO2 2.65 Good Soft to medium-hard samples
Sintered corundum Al2O3 3.8 Fairly good Medium-hard, fibrous samples
Silicon nitride Si3N4 3.25 Excellent Abrasive samples, iron-free milling
Zirconium oxide ZrO2 5.7 Very good Fibrous, abrasive samples
Stainless steel Fe –Cr –Ni 7.8 Fairly good Medium-hard, brittle samples
Tempered steel Fe –Cr 7.65 Good Hard, brittle samples
Tungsten carbide WC 14.95 Very good Hard, abrasive samples
Polypropylene disposable jar MC/PA/PTFE/PU/HDPE/PP ** Good For homogenisation

Please note: For the Planetary Mill, you require 2 or 4 grinding jar of your choice and the corresponding number of grinding balls. The grinding jar material must also be harder than the material to be ground. In normal cases, grinding jars and balls of the same material are used. To shorten the grinding time, larger or heavier grinding jars and grinding balls with a higher density and correspondingly higher impact energy can be used. Please take note of the useful capacity, this is not identical with the jar volume!

 

Application Examples
 

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