8.5 SELF-PROPELLED COMBINE HARVESTER

Features;

The combine harvester consists of cutting unit, threshing unit and cleaning and grain handling units. The cutting section includes reel, cutter bar, an auger and a feeder conveyer. Threshing section has threshing cylinder, concave and cylinder beater. The cleaning section mainly consists of walker, chaffer sieve, grain collection pan. The grain handling section consists of a grain elevator and a discharge auger. The crop after being cut is delivered to the cylinder and concave assembly through feeder conveyor where it is threshed and the grains and straw is separated in different sections. The grain can be directly loaded into the trolley.

Specifications:

Cutter bar length (mm)

Cutting height (mm)

Threshing drum diameter (mm)

Threshing drum length (mm)

Threshing drum speed (rpm)

Length of upper sieve (mm)

Width of upper sieve (mm)

Length of lower sieve (mm)

Width of lower sieve (mm)

Grain tank capacity (cubic meter)

Road speeds (km/h)

Weight (kg)

Power Source (hp/kW)

:      4300

:      550-1250

:      605

:      1240

:      540-1050

:      1240

:      1215

:      1240

:      1215

:      3.28

:      2 -11.4

:      8200

:      90-110, engine 

Uses:

Combines are used for cutting, threshing and cleaning of cereal and other crops in one operation.

Cost of Machine : Rs.14-16 lakh

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8.6 SELF-PROPELLED COMBINE HARVESTER FOR MAIZE

Features:

The combine harvester consists of a cutting unit, threshing unit and cleaning and grain handling units. The cutting section is specially designed to harvest maize crop and the header can be fitted to conventional grain combines. Threshing section has threshing cylinder, concave and cylinder beater. The cleaning section mainly consists of walker, chaffer sieve, grain collection pan. The grain handling section consists of a grain elevator and a discharge auger. The crop after being cut is delivered to the cylinder and concave assembly through feeder conveyor where it is threshed and the grains and straw is separated in different sections.

Specification:

Cutter Bar Width (mm)

Cutting Height (mm)

No. of Rows

Row Spacing (mm)

Size of threshing drum, Dia x Length (mm)

Type of Threshing drum

Speed of threshing drum (rpm)

Concave Clearance (mm)

Number of Straw Walkers

Area of straw walkers (m²)

Cleaning area (m²)

Overall Dimension (l x b)  (mm)

Min. Ground Clearance (mm)

Weight (kg).

Working capacity (ha/h)

 Power requirement(hp/kW)

:      3650

:      100- 1000

:      5/7

:      460- 685

:      600 x 1260

:      Rasp Bar

:     535 to 1210rpm

:      3-16

:      5

:      0.89

:      25

:      1500 x 4500

:      460

:      9000

:      1.00

:      75-110 56-82, Engine 

Uses:

Maize Combine is used for cutting, threshing and cleaning of Maize and can be used for harvesting other cereal crops in one operation by changing the header.

Cost of Machine : Rs.12-14 lakh

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8.7 SUGARCANE HARVESTER

Features:

It is a chopper harvester with a cleaning system. This harvester is used to cut green cane (with leaves). It can cut one/two rows of cane at a time.  The cane is fed between the crop dividers and is cut at the root zone by base cutter blades. The cane is then fed through the roller train and is cut by the chopper drums into small cane pieces of 24.5 to 30 cm. It is then cleaned in the primary extractor before being conveyed on the elevator. It is then cleaned again with the secondary extractor and loaded onto a vehicle for transportation. In ideal conditions, the harvester can cut nearly 400 tonnes of sugarcane per day.

Specification:

Transmission                                    :

 
 Tyres                                             :

Tracks                                            :

Primary Extractor                              :

Hood rotation                                   :

Elevator

Overall dimension (l x w x h) (m)          : 

Engine Power (hp/kW)                        :

Two hydrostatic pumps providing variable speed (Wheel machine: 0 to 24.6 km/h) (Track machine: 0 to 9.0 km/h)

Front 14x17.5 - 14 Ply, Rear 23.5x25 - 20 Ply

Sealed track chains

Polyethylene plastic 152 cm

Hydraulically controlled

Loading to either side

15.14 x 2.50 x 6.23

337/252.75

Uses:

It is used for harvesting sugarcane. It de-tops the cane from the top, cuts it from the base, strips the cane and cuts it into billets and also removes the trash and simultaneously loads the cut billet into the trolley

Approx. Cost of Machine : Rs.105 lakh/-

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8.8 COTTON PICKER

Features:

Cotton picker machines, often called spindle-type harvesters, remove the cotton from open bolls and leave the bur on the plant. The spindles, which rotate on their axes at high speeds, are attached to a drum that also turns, causing the spindles to penetrate the plants. The cotton fibers are wrapped around the moistened spindles and then removed by a special device called a doffer; the cotton is then delivered to a large basket carried above the machine

 Specifications:

Forward Speed(km/h)                         :     2.92- 5.0

Effective Field Capacity (ha/day)      :     2.24- 4.4         

Machine picking efficiency (%)        :      75 – 95

Fuel consumption( lit/h)                    :       22

Uses:

Picking of Cotton from the cotton

Cost: 120,00,000- 125,00, 000.

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8.9 STRAW BALER

Features:

The tractor PTO operated machine consists of reel type straw pick up assembly, and straw compaction and tying units. It automatically picks up the residue straw from field with the help of reel which is transferred into bale chamber with the help of feeder and then straw is compressed with the reciprocating ram into a compact variable length size. It also automatically ties the knots using metal wire or nylon rope.

Specifications:

Length (mm)

Width (mm)

Height (mm)

Width of pick up reel

Number of knotters

Cross section of the bale chamber (mm)

Twine box capacity

No. of plunger strokes per minute

Plunger stroke length (mm)

Wheel tread (mm)

Flywheel diameter (mm)

 Power Source (hp/kW)

:      5550

:      2600

:      1950

:      1540

:      2

:      400 x 460

:      Four spools

:      75 at 2000 engine rpm

:      764

:      2100

:      560

:      35/26.5 or above tractor

Uses:

 Straw balers are used for baling of straw into bales of rectangular cross section.

 Cost of Machine : Rs.5,00,000/-

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8.10 STRAW REAPER /STRAW COMBINE

Features:

Straw combine operated by tractor PTO has cutter bar reel, feeding auger and bruising cylinder like a traditional thresher. Straw thrown and stubble left by the grain combine is collected by straw combine and delivered to the cylinder concave section, where it is cut into pieces and passed through the concave. A reciprocating cutter bar is used for reaping the standing stubbles and the portion of the straw left uncut by the combine harvester. Straw, which passes through the concave, is aspirated by a blower and fed into a trolley on rear side covered by a wire net. For recovering the left grains from the straw, a sieve system is provided below the concave.

Specifications:

Length (mm)

Width (mm)

Height (mm)

Length of cutter bar

Height of cut

Diameter of reel (mm)

Width of reel (mm)

Width/Dia. of threshing drum (mm)

Threshing drum speed (rpm)

Blower diameter (mm)

Blower width (mm)

Number of blowers

Machine capacity (ha/h)

Power requirement (hp/kW)

:      3370-5350

:      2145-2400

:      2210

:      1830

:      60

:      435-485

:      1920-1935

:      1025-1250/525-625

:      650

:      660

:      230

:      1-2

:      0.40

:      35/26.25 tractor or above

Uses:

Straw combines are used to recover wheat straw left standing after combine operation. It also helps in recovering about 50 kg grain per hectare.

 Cost of Machine : Rs.1,25,000/-

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