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.

MODERN TECHNOLOGY

• ROTAVATOR CUM ROTARY TILLER

• PRESENTRD BY SHAILENDRA GAUTAM

Rotavator / Rotary TillerPreparing 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

• 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.

Advantages

• Rapid seed bed preparation

• Reduce draft compared to the convectional tillage implement

• Less power loss

• Soil compaction reduce

• Tractor weight reduce

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

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

• 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

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

Component of rotary tiller

1122

44

66

1010

99

55

33

88

1212

1111

77

Cut section of RotavatorCut section of Rotavator

Blade • L – shaped blade

• C- shaped blade

• Long shanked blade

• Speed blade

• Straight knife blade

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

Type of drive

Three-point hitch specifications

Category upper linkHitch 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)

Thank U

Er.Shailendra

Gautam