RETSCH CROSS BEATER MILL SK 300

RETSCH CROSS BEATER MILL SK 300
Saringan Mesh

Deskripsi produk
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.
For increased sample discharge and for processing heat-sensitive samples, an optionally available cyclone unit unit can be used instead of the gravity outlet.
PRODUCT ADVANTAGES
wide range of accessories including various collection and feeding systems, rotors and sieves
defined final fineness due to bottom sieves with aperture sizes from 0.12 - 10 mm
adjustable speed for different applications
gravity outlet with 5l or 30 L collecting vessel for batchwise collection of larger sample quantities
optionally available cyclone unit with 0.25 - 0.5 - 1 - 2 - 5 or 30 liters collecting vessel
easy cleaning thanks to exchangeable push-fit grinding insert, rotor and sieve
electric engine brake
central locking device
APPLICATION EXAMPLES
cement clinker, chamotte, coal, coke, glass, granite, gravel, gypsum, minerals, ores, oxide ceramics, slag, soils, ...
To find the best solution for your sample preparation task, visit our application database.
Application Database
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
~ 60 kg (with base frame)
Remark weight (without hopper etc.)
~ 50 kg (without base frame)
Standards
CE
*depending on feed material and instrument configuration/settings
FUNCTIONAL 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 through the gravity outlet. 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. The optionally available cyclone separator enhances a cooling of the sample material and the cutting tools and improves the discharge of the sample from the grinding chamber.