presentation on Rotavator

rotavator general machining subscription

2. ROTAVATOR PURPOSE
•It is used as a primary cum secondary
tillage impliment.It helps to conserve
previous soil moisture and pulverises soil
up-to 6 inches of depth.

3. MODERN TECHNOLOGY
•ROTAVATOR CUM
ROTARY TILLER
•PRESENTRD BY
SHAILENDRA GAUTAM

4. Rotavator / Rotary Tiller
Preparing the land
suitable for sowing
(without overturning
of the soil )
For eradicating weeds

Mixing manure or
fertilizer into soil
To breakup and renovate
pasture for crushing clods

5. •Rotary Tiller is ideal for smooth & speedy preparation
for root crops, fodder crops, orchards & cash crops.
•
•Enhances the soil fertility by mixing the residue of
crops like cotton, sugarcane, wheat and paddy.
•Efficient & economical for puddling. Suitable for dry
and wet soil condition because of sealed rotor
bearings.
•Results in time & fuel saving. Lesser wear & tear of
the tractor as the soil preparation is accomplished in
one or two passes.
•Conserves soil moisture & helps water management
as tilling can be done immediately after harvesting
the previous crop.
•Tillage depth varies according to moisture level of
soil.

6. Advantages
•Rapid seed bed preparation
•Reduce draft compared to the
convectional tillage implement
•Less power loss
•Soil compaction reduce
•Tractor weight reduce

7. Types of rotary tiller
•One act as an integral part of power
tiller
•Where as a separate entity mounted
on tractor hydraulic system and
powered by tractor PTO shaft
•Note The power required by power
tiller is 3 times greater than the MB
plough

8. Principle of operation
•Applies direct tractor engine power to the
soil through the PTO with out the
slippage of excessive tractor weight with

•Good tillage management and proper
operation, They can provide a valuable
tillage alterative to plough and harrowing

9. •Two or three pairs of blades are used on each
flange which in turn are clamped to the rotor
shaft and may be shifted or removed for
varying tillage pattern
•As rotor shaft revolved each blade cut a slice
from untilled soil
•The cross sectional area of slice depend upon
the depth of tillage and the amount of the
forward tillage per cut

10. Various factor effect the tilth
•Effect of soil
•Effect of rotor speed
•Effect of travel speed
•Effect of rear shield
•Effect of soil moisture
•Effect of number of blade

11. Component of rotary tiller 
1
2
4
6
10
9
5
3"
8
12
11
7

12. !# Cut section of Rotavator

14. Blade
•L – shaped blade
•C- shaped blade
•Long shanked blade
•Speed blade
•Straight knife blade

15. Size of cut or bite
•The size of the cut or bite of the rotary
blade is determined by the tractor
forward speed, number of blade and
rotor speed

16. Type of drive

20. Three-point hitch specifications
Category
upper link
Hitch pin size
lower
links Hitch
pin size
Lower
hitch
spacing
Tractor
drawbar
power
0  17 mm (5⁄8") 17 mm (5⁄8") 500 mm (20") <15 kW (<20
hp)
 1  19 mm (3⁄4") 22.4 mm
(7⁄8")
718 mm (26") 15-35 kW (20-
45 hp)
 2  25.5 mm (1") 28.7 mm (1
1⁄8")
870 mm (32") 30-75 kW (40-
100 hp)
 3   31.75 mm (1 1⁄4")37.4 mm (1
7⁄16")
1010 mm
(38")
60-168 kW
(80-225 hp)
 4  45mm (1 3⁄4") 51 mm (2") 1220 mm
(46")
135-300 kW
(180-400 hp)

21. Thank U
Er.Shailendra
Gautam