1. SUGAR TECHNOLOGY & INNOVATION

2. INCREASE IN MECHANICAL EFFICIENCY
RR TASKS
Cane juice extraction is the most power demanding step in the sugar process.
Reggiana Ridutto has developped an innovative mill rollers drive system, succeeding in following tasks:
INCREASE IN MECHANICAL EFFICIENCY
INVESTMENTS REDUCTION (CONSTRUCTION and MAINTENANCE)
EXTRACTION CONTROL
CONVENTIONAL MILLS UPGRADING
Let’s see HOW

3. INCREASE IN MECHANICAL EFFICIENCY
CONVENTIONAL MILL DRIVE
foot-mounted reduction gearings with tail bar, crown pinions and rope couplings
does it easier with its
INNOVATIVE PINIONLESS MILL DRIVE
consisting of
SHAFT MOUNTED GEARBOXES DIRECTLY ON THE ROLLER SHAFT

4. INCREASE IN MECHANICAL EFFICIENCY
CONVENTIONAL DRIVE
Crown pinion
92%
Tail bar
97%
High speed reducer
90%
VFD Electric motor
96%
EQUIPMENTS
PINIONLESS DRIVE
CONVENTIONAL MILL
AC Motor
96%
REDUCTION GEARS
95%
92%
Low speed OPEN GEAR
60%
Tail Bar
97%
CROWN PINION
TOTAL EFFICIENCY
47%
WIN 200% MORE EFFICIENCY WITH
PINIONLESS DRIVE
91%

5. INCREASE IN MECHANICAL EFFICIENCY
ROPE COUPLING DRIVE
15% MORE EFFICIENT THAN COMMONLY USED PLANETARY DRIVE
EQUIPMENTS
PINIONLESS DRIVE
ROPE COUPLING MILL
AC Motor
96%
REDUCTION GEARS
95%
92%
Rope coupling
97%
CROWN PINION
TOTAL EFFICIENCY
91%
79%

6. INCREASE IN MECHANICAL EFFICIENCY
RR EXPERIENCE:
4 MILLS 40” x 80”, 6000 TCD.
MILLING SPEED: 4,5 rpm
INSTALLED POWER: 840 kW/mill.
2 X 250 kW TOP ROLLER (RR55000)
1 X 250 kW BOTTOM ROLLER (RR55000)
1 X 90 kW TRF (RR25000)
POWER SAVING WITH PINIONLESS DRIVE: 100 kW/mill
100 kW/mill
400 kW/day
72 MW/Season (6 months)

7. INVESTMENTS REDUCTION
SHAFT MOUNTED GEARBOXES
NO NEED OF FOUNDATIONS
COMPACT FACTORY DESIGN

8. INVESTMENTS REDUCTION
SPLITTED POWER
SMALLER GEARBOXES and MOTORS SIZE
BETTER AVAILABILITY and LOWER SPARE PART PRICES
SHORTER POWER TRASMISSION CHAIN
LESS MAINTENANCE
REDUCED SPARE PARTS STOCK

9. INDIPENDENTLY DRIVEN ROLLERS
EXTRACTION CONTROL
FLEXIBLE ROLLERS RELATIVE SPEED SET UP
BETTER CANE FIBERS SHREAD and COMPRESSION CONTROL
ROLLER SPEED RATIOS can be RELATED TO CANE QUANTITY, QUALITY and DENSITY
INDIPENDENTLY DRIVEN ROLLERS
SMARTER MILL SET UP
BETTER EXTRACTION CONTROL

10. EXTRACTION CONTROL
TORQUE TRASMISSION BETWEEN CROWN PINIONS CAUSES a LOCAL REACTION and HIGH STRESS LEVELS at MILL ROLLERS END
HIGH STRESS LEVEL at MILL ROLLER SHAFT END
FREQUENT FAILURE and WEAR OUT of:
CROWN PINIONS
BRASSES
BEARINGS
UNSYMMETRICAL ROLL LIFT
NOT UNIFORM CANE BLANCKET COMPRESSION
LOWER EXTRACTION EFFICIENCY
WITH PINIONLESS DRIVE
UNIFORM CANE BLANCKET COMPRESSION
LONGER COMPONENTS LIFETIME
LESS MAINTENANCE

11. INDIVIDUAL PINIONLESS ROLL
EXTRACTION CONTROL
INDIVIDUAL PINIONLESS ROLL
DRIVE
POWER ABSORPTION AND ROLL SPEED CONTROL
DRIVE FOLLOWS THE ROLL MOVEMENT
UNIFORM ROLL LIFT and LOWER STRESS LEVEL (no pinion reaction)
BETTER EXTRACTION
REDUCED WEAR
LESS MAINTENANCE

12. CONVENTIONAL MILLS UPGRADING
PINIONLESS DESIGN CAN CONVERT CONVENTIONAL
MILLS INTO MODERN PINIONLESS MILLS AND TAKE ADVANTAGE OF MOST TECHNICAL ADVANTAGES
FLANGE TO FLANGE ASSEMBLY CAN UPGRADE THE TRADITIONAL ROLL DRIVES INTO SHAFT MOUNTED GEARBOXES.
YOU CAN IMPROVE EXISTING SUGAR PLANTS ENERGY LEVEL TO THE MOST MODERN STANDARDS end GAIN BETTER EXTRACTION

13. RANGE AND SOLUTIONS Cane carrier Cane elevator Cane leveller
SIZES FOR
Cane carrier
Cane elevator
Cane leveller
Cane feeder
Bagasse elevator
Bagasse Stacker
Juice clarifiers
Scraper
Crystallisers
Agitator
Conveyor
SIZE
T2max [Nm]
RR2500
37000
RR3200
58000
RR4000
75000
RR5200
92000
RR6500
125000
RR8000
160000
RR10000
190000
SIZE
T2max [Nm]
RR65
1200
RR105
1800
RR110
2000
RR210
2500
RR310
5500
RR510
7000
RR710
8500
RR810
14500
RR1010
17500
RR1700
26500
WE CAN DO THEM ALL !

14. RANGE AND SOLUTIONS SIZES FOR TRF up to 100 KW each
T2max [Nm]
RR15000
275000
RR20000
395000
RR25000
580000
RR30000
680000
RR40000
790000
RR55000
950000
RR70000
RR85000
RR110000
TRF over t 100 KW each TOP and BOTTOM rollers up to 300 kW each
MILL CAPACITY up to 6000 TCD
OUTPUT SPEED UP TO 12 rpm
TOP and BOTTOM rollers over 300 kW each
MILL CAPACITY over 6000 TCD

15. RANGE AND SOLUTIONS SHAFT OPTIONS CONFIGURATIONS
SPLINED OUTPUT SHAFT WITH
CLAMPING RING
DOUBLE CENTERING
EASY ASSEMBLY and DISASSEMBLY
SAFER (better stress distribution)
NO RUST
CONVENTIONAL HOLLOW SHAFT WITH SHRINK DISC
CONFIGURATIONS
WITH HELICAL OR BEVEL HELICAL INPUT
LINEAR OR ANGULAR
HIGHER THERMAL RATINGS
HIGHER INPUT SPEEDS

16. AND . . . WE DO IT CONVENTIONAL TOO!
RANGE AND SOLUTIONS
AND WE DO IT CONVENTIONAL TOO!
FOOT MOUNTED PLANETARY GEARBOXES with :
SQUARE OUTPUT SHAFT FOR ROPE COUPLING/CROWN PINION
COOLING SYSTEM
all over RANGE

17. RR thinks global and acts local
RR GROUP WORLD
READY TO ASSIST YOU WORLDWIDE!

18. Sugar cane projects
JAY MAHESH SUGAR IND.LTD. (NSL Sugars Ltd.) (INDIA).
MUKTESHWAR SUGAR MILLS LTD (INDIA).
-GANGAKHED SUGAR & ENERGY LIMITED (INDIA).
-QUANG NGAI SUGAR (VIETNAM).
-UTTAM (INDIA).
-SADA (BRASIL).
-MT SUGAR (THAOLAND).
… and many other worldwide.