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.

Ideal For

Pearl, ginseng, dendrobium candidum, tablet, medicament, liquorice, coke, coal, glass fibrous, paper, chip, polymer, pigment, metallic oxide, iron ore, iron powder, bone,alumina ceramic, gypsum, quartz, mineral, graphite, concrete, soil, alloy, cement clinker,wood, slag, tobacco, catalyst, sewage sludge.

Planetary mill is universally applicable for quick dry or wet grinding of inorganic and organic samples for analysis, quality control, materials testing and mechanical alloying. In synthesis, planetary mills can be used for mixing and homogenisation of dry samples, of emulsions and of pastes.

Features of Planetary Ball Mills

Grinding chamber with automatic LED lighting

Fast comminution of laboratory samples with up to 800 rpm

Simultaneous processing of up to 8 samples

4 working stations

Useful capacity up to 4*500ml

Programmable grinding and pause times and grinding sequences – for short-time operation adjustable down to the second

High uniformity and excellent repeatability

Smaller grinding bowls also possible with an adapter

Reversing function

Extensive accessories for simplifying your daily work

Cooling of the grinding chamber with a built-in fan for long grinding times

Low noise with high polymer gears and grease lubrication

Technical Data of Planetary Ball Mills

Optimal for material type:

medium-hard, soft, brittle, tough, moist

Item No.:

CHL-IP4

Max. feed size:

5mm

Final fineness:

<100nm

Min. sample quantity:

10ml

Max. sample quantity:

180ml

Rotational speed (disk):

50-450r/min

Rotational speed (jars):

100-900r/min

Transmission ratio:

1:-2

Transmission standard:

CE

Grinding modes:

16 modes programmable

Grinding tools:

grinding jars and grinding balls

Bi-direction grinding:

yes

Continuously grinding

00:01:00 - 99:59:59

Paused interval:

00:01:00 - 99:59:59

Emergency stop:

yes

Power off memory:

yes

Overload protection

Yes

Milling chamber lighting:

automatic LED lighting, 220V, 18W

Number of milling samples:

4 simultaneously

Materials of the grinding jars:

SS304, SS316, nylon, PTFE, agate, zirconia, alumina, PU, WC

Number of working stations:

4

Ball mill type:

vertical

Compatible grinding jars:

50ml / 100ml

Materials of milling balls:

SS, agate, zirconia, alumina, nylon, PTFE

Grinding ball diameter:

3/5/10/15/20mm

Compatibal ball weight

40-200g

Grinding process:

dry /wet grinding

Vacuum grinding:

yes

Low temperature grinding:

yes

Grinding in inert gas:

yes

Temperature detection:

yes ( special accessories)

Pressure detection:

yes ( special accessories)

Electrical details:

100-120V/200-240V AC ,50-60Hz, 250W

Plug types:

GB/EU/US/UK standard

Net weight:

35kg

Dimensions (W x D x H):

500*300*350mm

Noise level:

60dB

IP rank:

IP60

Product standard:

CE

Patent:

design patent/ noise improve patent

Accessories:

user manual, warranty card

Material Data for Grinding Jars/Balls

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