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  • Retsch Cross Beater Mill SK 300, with cross beater, baffle plates, 240 mm filter hose and collecting receptacle (please order bottom sieve and optional base frame separately)
Retsch Cross Beater Mill SK 300, with cross beater, baffle plates, 240 mm filter hose and collecting receptacle (please order bottom sieve and optional base frame separately)
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  • Retsch Cross Beater Mill SK 300, with cross beater, baffle plates, 240 mm filter hose and collecting receptacle (please order bottom sieve and optional base frame separately)
  • Retsch Cross Beater Mill SK 300, with cross beater, baffle plates, 240 mm filter hose and collecting receptacle (please order bottom sieve and optional base frame separately)
  • Retsch Cross Beater Mill SK 300, with cross beater, baffle plates, 240 mm filter hose and collecting receptacle (please order bottom sieve and optional base frame separately)

Retsch Cross Beater Mill SK 300, with cross beater, baffle plates, 240 mm filter hose and collecting receptacle (please order bottom sieve and optional base frame separately)

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hardened steel / cast iron / hardened steel - (rinding assembly / cross beater / baffle plates)

 

Features

Applications
size reduction
Field of application
agriculture, chemistry / plastics, construction materials, environment / recycling, geology / metallurgy, glass / ceramics
Feed material
medium-hard, brittle
Size reduction principle
impact
Material feed size*
< 25 mm
Final fineness*
< 100 µm
Speed at 50 Hz (60 Hz)
2000 - 4000 min-1 (in steps of 200 min-1)
Speed setting
yes
Rotor peripheral speed
15.5 m/s .. 31 m/s
Types of rotors
stainless steel / cast iron
Material of grinding tools
hardened steel, stainless steel, cast iron, steel 1.1740 (for heavy-metal free grinding)
Sieve sizes
trapezoid holes 0.12 / 0.20 / 0.25 / 0.35 / 0.50 / 0.75 / 1.00 / 1.50 / 2.00 mm
round holes 3.00 / 4.00 / 5.00 / 6.00 / 8.00 / 10.00 mm
Dust extraction unit
optional cyclone
Collector capacity
5 l / optional: 30 l
Drive
3-phase motor with frequency converter
Drive power
1.1 kW
Electrical supply data
200 .. 240 V 50 / 60 Hz
Power connection
1-phase
Protection code
IP 41
Power consumption
1.5 kW
W x H x D closed
600 x 1200 x 700 mm (with base frame)
Net weight
~ 57 kg (with base frame)
Remark weight (without hopper etc.)
~ 45 kg (without base frame)
Standards
CE

 

 

Function Principle

 

Size reduction in the SK 300 takes place by impact effects. The feed material passes from the hopper directly into the center of the grinding chamber, where it is caught by the cross beater and ground between the baffle plates of the cross beater and the toothed grinding insert.
As soon as the material is smaller than the aperture size of the bottom sieve used, it passes through the sieve and enters the collecting receptacle. The air drawn in through the hopper by the cross beater accelerates the discharge of the ground material. The airborne fine fraction is separated off by a downstream filter system.

Subject to technical modifications and errors

Retsch GmbH
Call 01463 830401 For Any Assistance

The Cross Beater Mill SK 300 is suitable for coarse and fine size reduction, either in batches or continuously. It can process medium-hard and brittle materials and is easy to operate.

With its adjustable speed of 2,000 to 4,000 rpm the SK 300 is intended foruniversal use: from sample preparation in laboratories up to preparing sample batches in pilot plants or production facilities.

Application Examples

cement clinker, chamotte, coal, coke, glass, granite, gravel, gypsum, minerals, ores, oxide ceramics, slag, soils, ... continue to application database

Product Advantages

  • suitable for batchwise operation of larger quantities
  • adjustable speed for different applications
  • defined final fineness due to bottom sieves with aperture sizes from 0.12 - 10 mm
  • easy cleaning thanks to exchangeable push-fit grinding insert, rotor and sieve
  • wide range of accessories including various collection and feeding systems, rotors and sieves
  • electric engine brake
  • central locking device
  • Optional cyclone available

 

    • SKU
      20.751.0002
  • Manufacturer
    Retsch GmbH
  • Country of Origin
    Germany

Bottom sieves SK 300 of stainless steel


02.407.0098
Trapezoid holes0.12 mm 


02.407.0099
Trapezoid holes0.20 mm 


02.407.0100
Trapezoid holes0.25 mm 


02.407.0121
Trapezoid holes0.35 mm 


02.407.0101
Trapezoid holes0.50 mm 


02.407.0102
Trapezoid holes0.75 mm 


02.407.0103
Trapezoid holes1.00 mm 


02.407.0104
Trapezoid holes1.50 mm 


02.407.0105
Trapezoid holes2.00 mm 


02.407.0106
Round holes3.00 mm 


02.407.0107
Round holes4.00 mm 


02.407.0108
Round holes5.00 mm 


02.407.0109
Round holes6.00 mm 


02.407.0110
Round holes8.00 mm 


02.407.0111
Round holes10.00 mm 


 

Bottom sieves of steel 1.0344 for grinding without heavy-metal contamination


02.407.0112
Trapezoid holes0.12 mm 


02.407.0113
Trapezoid holes0.20 mm 


02.407.0114
Trapezoid holes0.25 mm 


02.407.0122
Trapezoid holes0.35 mm 


02.407.0115
Trapezoid holes0.50 mm 


02.407.0116
Trapezoid holes0.75 mm 


02.407.0117
Trapezoid holes1.00 mm 


02.407.0118
Trapezoid holes1.50 mm 


02.407.0119
Trapezoid holes2.00 mm 


 

Vibratory Feeder DR 100 for SR 300


DR 100 complete unit, incl. feeding kit (push-fit feed chute 75 mm, holder for push-fit feed chute, hopper 3.5 litres, holder for hopper) and fixture
70.938.2003
DR 100220–240 V, 50 Hz 


70.938.2004
DR 100220–240 V, 60 Hz 


70.938.2005
DR 100200 V, 60 Hz 


70.938.2006
DR 100200 V, 50 Hz 


 

Cyclone-suction-combination for SK 300


22.935.0022
Cyclone unit incl. 5 litres collection receptacle (to be used with industrial vacuum cleaner)

22.935.0023
Cyclone unit incl. 30 litres collection receptacle (to be used with industrial vacuum cleaner)

22.748.0005
Industrial vacuum cleaner for mills, 230 V, 50/60 Hz
(other electrical versions and spare filter bags available upon request)

 

Additional items SK 300


22.187.0008Ring-type filter for collecting receptacle 5 litres

22.748.0001Dust filter clamping rings for ring-type filter, incl. 5 dust filters

22.524.0002Dust filters for ring-type filter, 25 pieces

02.011.0038Collecting receptacle, 5 litres, stainless steel

02.187.0020
Filter hose for collecting receptacle 5 litres, length 240 mm, incl. comfort flange

02.186.0037Spare filter hose for 02.187.0020

22.003.0015
Collecting receptacle, 30 litres, plastic, incl. filter hose and comfort flange

02.186.0042Spare filter hose for 22.003.0015

99.200.0023
IQ/OQ Documentation for SK 300

22.443.0004Grinding assembly, cast iron

22.443.0005Grinding assembly, hardened steel

22.443.0006Grinding assembly, stainless steel

22.716.0003
Cross beatercast iron 


22.716.0004
Cross beaterstainless steel 


22.526.0007
Baffle plateshardened steel, 3 pieces 


22.526.0008
Baffle platesstainless steel, 3 pieces 


22.526.0009
Baffle platessteel 1.1740, 3 pieces for grinding without heavy-metal contamination