PMDW series planetary ball mill is an essential device for mixing, finely grinding, developing new products and small batch production of high-tech materials. It has small appearnce, complete functions, high efficiency and low noise, and is widely used in pharmaceutical, chemical industry, environmental protection, light industry, building materials, metallurgy, ceramics, mineral and other sectors.

Working principle:

The cold air produced by the liquid nitrogen is continuously injected into the ball mill, and absorb the heat generated by the high-speed running of the jars. So the jars filled with materials and grinding balls are always in a low temperature environment.

Technical parameters:

Application: grinding, mixing, homogenization, nano-grinding, mechanical alloy

Application fields: Electronic materials, soil, aviation materials, batteries, ceramics, biology, geology and mineral resources, metallurgy

Sample: Soft, hard, brittle, fibrous, dry or wet

Refrigerating mode: Liquid nitrogen refrigeration

Ambient temperature: -40℃~20℃

Gas consumption（0~-10℃）：2-5 L/h

Capacity of liquid nitrogen container: 2L&4L match 50L liquid nitrogen container, 12L&20L match 100L liquid nitrogen container

Working principle: Impact, friction

Transfer method: wheel

Vacuum grinding: Match vacuum jars

Safety protection device： Automatically stop when the cover is open in running state

Sample capacity limit: 2/3 of the jar

Feed size: soil≤10mm other≤3mm

Discharge size: Minimum of up to 0.1μm

Jar No.: 2/4

Speed ratio: 1:2

Timing : 1-999 minutes from time

Alternating operation time: 1-999 minutes

Drive: Three-phase AC motor

Maximum continuous working hours (full load): 72 hours

Control mode: variable frequency stepless speed regulation, programmable controls, LED display, automatic timing positive inversion, time off

Operating mode:

1. One-way running

2. One-way running, timed stop

3. Positive and negativealternate-running, timed stop

4.Interval one-way running, timed stop

5. Interval positive and negativealternate-running, timed stop

Speed:  PMDW2L：0～580r/min, PMDW4L：0～530r/min, PMDW12L：0～440r/min, PMDW20L：0～280r/min,

Jar volume:50ml, 100ml, 250ml, 500ml, 1000ml, 2000ml, 3000ml, 4000ml, 5000ml

Jar types: Stainless steel, agate,ceramics, PTFE, nylon, polyurethane, zirconium oxide, carbide