Retsch PM 400 - Manual (Page 8)

08.02.2012 Retsch GmbH
8
Doc. Nr. GB 98.535.9999
Technical data
Machine type designation: PM400
Use according to the intended purpose
Retsch ball mills are used for milling and mixing soft, medium-hard
up to extremely hard, brittle and fibrous matierals. Both dry and
wet milling operations can be carried out. Minerals, ores, alloys,
chemicals, glass, ceramics, plant parts, soils, sewage sludge,
domestic and industrial waste and many other substances
can be milled, easily, quickly and without losses. These ball mills are
used successfully in practically all areas of industry and
research, particularly where stringent requirements are set on
purity, quickness, fineness and reproducibility.
Only milling cups of type “C” from the firm Retsch GmbH may be
used.
The mills are not designed as production machines, but as
laboratory equipment, intended for 8-hour single shift operation.
Do not make any alterations to the machine and use only spare
parts and accessories approved by Retsch.
Otherwise the Declaration of Conformity with the European
Directives by Retsch loses its validity.
Furthermore this will result in the loss of any kind of
guarantee claims.
Number of milling positions
2 or 4, depending on the type of machine. The milling positions
must be operated with identical milling cups and at the same weight
for every millling operation.
Maximum charged quantity
PM400 = up to 4 times 300 ml, depending on the machne volume.
Maximum charged grain size
PM400 up to < 10 mm, but depends on material.
Driving power:
1500 W
Emissions
Noise characteristic values PM400 :
Noise measurement according to DIN 45635-31-01-KL3
The noise characteristic values are influenced mainly by the
machine speed, milling cup size and diameter of the milling
balls used.
Emission value related to workplace L
pAeq
= up to 85 dB(A)
Conditions for measurement:
Milling set: 4x 500ml special steel each with 5 balls of dia.
30 mm, tungsten carbide
Milling material: quartz sand, 135 g each
Rotary speed: 380 min-1
Materials and analyses of milling tools
See : www.retsch.com/english/docs/grinding_tools.pdf
Systems of protection
IP40