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Doppstadt
DF 207 ROTARO
Fine shredder
Index
Contents Slide No.
Machine
Machine design 3
Usage and control cabinet 10
Drawing sheet 13
Optional extras 14
Main features 17
Grinding process 18
Technical data 19
31/05/2015 2
• Solid chassis is fabricated
using torsion resistant welded
construction
• Large service doors for easy
access to drive system and
hydraulic unit
• vibration dampers mounted at
machine feet
Machine Design
Chassis
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Machine design
Drive unit
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• Energy saving by direct drive
system
• 1x250kW AC-motors
• V-belt drive on left side
• Hydraulic unit on right side
• Space saving construction by
placing motors inside of
machine
Machine design
Drive unit / hydraulic unit
• Hydraulic unit with separated drive motor
(right side) - Automatic pressure control of the self-adjusting material
pusher
- Opening and closing of the service access hatches
- Locking mechanism, sieve- basket access hatch
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• Direct drive without transmission (left side) - V-belt drive
- Power: 1x 250kW IE4
- continuously adjustable Rotor speed from 100rpm up to
350rpm
Machine design
Cutting rotor
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• Full material rotor
• Diameter: 606mm
• Weight: 5370kg
• High rotation mass
Machine design
Cutting tools
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• Counter blade length 2204mm
with 10 blade segments
• 48 bolt-on knife blades on
rotor
• Easy tool change by way of
high-strength bolt-on
fastenings
• Turnable knife blades (4
edges) enables longer life
time until full knife exchange
Machine design
Cutting tools
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• Selectable sieve-baskets
mesh sizes 30 – 100mm
• Thickness of the sieve-
baskets: 20mm
• New basket system for easier
changing of the sieve basket
Machine design
• Load sensor controlled
system
• Regulates even product flow
towards the cutting rotor
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Machine design
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• Local control cabinet at the
machine
• Control of all functions
necessary for running,
maintaining and servicing the
machine
Switchboard cabinet
• Variable frequency drive,
rotation speed control
• Dimensions : WxDxH
3800x600x1900mm
• Full torque from start-up of the
machine
• Placement in a dry and dust-
free room is mandatory:
control room or acclimatized
container
• Inching mode for turning rotor
during servicing of blades
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Switchboard cabinet
• Picture 1 – Power supply
• Picture 2 – Variable frequency drive
• Picture 3 - Controls
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DF 207 ROTARO
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Optional Extras
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Optional Extras
• Machine mounting frame • Machine can be raised up to 1200mm
• Higher on request
• Discharge conveyor, • AA-3200mm BB-800mm
AA = length of conveyor between end roller axles
BB = width of conveyor belt
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Optional Extras
• Switch cabinet container
• serves to protect the electrical switch
cabinet components against mechanical
damage, climatic influences and the ingress
of dust and/or other emissions.
• LxWxH : 5000x2400x2600mm
• The Profibus system integrates the
Doppstadt machine with a master system
controller
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Characteristics
MAIN FEATURES
Robust steel body
Load sensing material in-feed by hydraulic pusher system
Large maintenance flaps ensure easy access to the shredding chamber
Easily changeable knives by means of simple connections on the rotor and
fixed counter-blade section
High efficiency due to large rotor mass
Shear pin coupling on rotor drive protects the machine against damage from
foreign objects
New basket system for easier changing of the sieve basket
Continuously adjustable Rotor speed from 100rpm up to 350rpm
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Cutting process
• Material feed-in by conveyor
belt
• Self-adjusting pusher presses
material into the rotor blades
• Cutting process with rotor
blades and counter blades
• Processed material outlet via
sieve-baskets and conveyor
belt
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Overview
31/05/2015 19
Machine DF 207 ROTARO
Basic
Drive using AC-motors 1 x 250kW
Rated current 472 A
Rated current on machine start up 472 A
Recommended main fuse 630 A
V-belt drive X
Hydraulic material pusher system with load sensing control X
Hydraulic unit 7.5kW
Rotor diameter 600mm
Rotor length 2200mm
Rotor weight 5400kg
Knife blade sections (blades are turnable) 48
Counter blades (blades are turnable) 10
1 sieve-basket set (3 pieces - selectable mesh size) X
Large service door for easy cleaning and tool change X
Local control cabinet at the machine X
Emergency shut-down switches X
Pre-assembled switch cabinet X
Variable frequency drive, rotation speed control, inching (service) mode for the rotor X
Overview
31/05/2015 20
Machine DF 307 Rotaro
Optional extras
Discharge conveyor, in combination with steel frame only Length 3200mm x Width 800mm
Machine steel frame up to 1200mm
Profibus – Interface X
Switch cabinet container LxWxH 5000x2400x2600mm
Customised RAL colour service X