Retsch BB 300 - Manual (Page 6)

07/02/2012 Retsch GmbH 6
Technical data
Target group: Owners, operators
Machine type designation: BB 300
Use for the intended purpose
This machine is not designed as a production machine or for
continuous operation, but as a laboratory machine intended for 8 hour
single shift operation.
The BB 300 is suitable for crushing of medium to extremely hard
substances and brittle and hard/tough materials. The achievable final
fineness can be up to 5 mm and less, depending on the input material.
The maximum input grain size is <130 mm.
The materials which can be crushed in the BB 300 include the
following:
concrete // ores // rock // glass // ceramics // coal // minerals //
slags // cement clinker etc.
Should you require any further details, the Retsch applications
laboratory will be pleased to assist.
Do not modify the machine in any way, and use only spare parts and
accessories approved by Retsch.
The conformity with European Directives declared by Retsch will
otherwise be invalidated.
Furthermore, this will lead to all warranty claims being rendered
null and void.
Gap adjustment
From 1 mm to approx. 40 mm by means of a spindle.
Throughput, final fineness
The performance data, throughput and achievable final fineness are
dependent on the breakage behaviour and hardness of the process
material and on the gap width set. They can only be determined
empirically.
Degree of protection
IP55
Rated power
3000 watts
Noise data
Noise measurement to DIN 45635-31-01-KL3
The noise levels are also decisively influenced by the properties of the
material to be ground.
Example 1 :
Sound power level L
WA
= 95.7 dB(A)
Workplace related emission level L
p eq
= 81.5 dB(A)
Service conditions :
Input material: Marble pebbles, grain size <90 mm
Gap width set: < 1 mm
Final grain size: < 14 mm
Filling of milling chamber: approx. 65%