8.0 HARVESTING EQUIPMENT

 

 

8.1 CHOPPER

 

Features:

 

Chopper is a simple harvesting hand tool, which consists of a blade, tang and a handle. The cutting edge is slightly curved (convex) along the cutting edge to facilitate the cutting. The blade is joined to the handle by inserting its tang. The blade is forged to knife section and cutting edge sharpened. The blade is important part of the tool and is made from medium carbon steel, high carbon steel, manganese steel or alloy steel including tool steel. The cutting edge is hardened and tempered to suitable hardness to resist wear and abrasion. The tool made from tool steel and alloy steel has more service life as compared to the plain carbon steel blade. The blade should have property of toughness to resist the impact stresses. The handle is made of wood and shaped to suitable handgrip. For operation, the blade is struck hard against the stem with one hand and the cutting is accomplished by the impact action and sliding of the blade along the stem. The shape and size of the chopper varies from place to place and its use.

 

Specifications:

 

Overall length (mm)

Length of cutting edge (mm)

Width of cutting blade (mm)

Thickness of blade (mm)

Length of handle (mm)

Weight (g)

Hardness of blade

 

 

 

:         285 -475

:         160 -260

:         55 -80

:         4, tapered to cutting edge

:         115-225

:         450 -500

:         37 -46 HRC

 

Uses:

 

For harvesting of pineapple, coconut, banana stem. It is also used for splitting of the coconut and cutting the twigs and small branches.

Cost of Machine : Rs 200/-

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 8.2 CARDAMOM KNIFE

Local Name: Elaichi kala

 

Features:

 

The tool is mostly used in cardamom cultivation. It consists of curved tip blade and handle. The blade is made of square section rod, flattened at the tip and the tip is made to hook shape. Both convex and concave sides of the tip are sharpened. The convex side is sometimes serrated for easy cutting of the cardamom plants and pods. The blade is made from old leaf spring steel, mild steel flat or angle section and forged to shape. The tang is inserted in the wooden handle. The tool is used by pulling or pushing section.

 

Specifications:

 

Raw materials used

Blade Handle

Dimensions of blade

Length x Width x Thickness (rnrn)

Dimensions of handle

Diameter (mm)

Length (mm)

Angle between blade and handle (degrees)

Weight (kg)

 

 

 

:      Leaf spring steel, mild steel flat

:      Wood

 

:      150-180 x 10-15 x 4-5

 

:      20-30

:     150-200

:     180

:     0.10-0.20

 

Uses: 

 

The tool is used for harvesting cardamom fruits and cutting old cardamom plants.

 

Cost of Machine : Rs 200/-

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8.3 BHENDI PLUCKER

 

 

Features:

 

The tool is ergonomically designed. The plucker consists of two arms hinged together, cutting blades joined to open ends of arms and two rings joined to the arms. The blades are made of medium carbon steel or low alloy steel, hardened and tempered to suitable hardness. Panicles are cut individually using this tool. The operator is spared of drudgery, discomfort and itching to skin of his hands, which are associated with conventional method of manual plucking without any aid. It fits in to the hand properly with the help of two rings, one over thumb and another over index finger. Force to cut the penicle is exerted by pressing these two fingers against each other. Penicle is sheared between two straight blades, one of which is notched for better grip.

 

Specifications:

 

Length (mm) :

Width (mm) :

Weight (kg) :

Capacity (kg/day)

 

 

 

:       140

:       95

:       0.15

:       50

 

Uses:

 

It is used for plucking of bhindi (ladies finger) from plant.

 

Cost of Machine : Rs 100/-

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8.4 RUBBER TAPPING AND DRAINING KNIFE

 

 

 

Features:

 The tool consists of a V-shaped, front edged blade, fixed to a wooden handle with the help of tang and ferrule. The blade is made from high carbon steel, tool steel or alloy steel. The cutting edge is heat treated and hardened to a suitable hardness. The ferrule is made of mild steel and chrome plated to avoid oxidation. For tapping of the rubber fluid from the rubber trees, the V -shaped front edge, which is a cutting edge, is used to inflict a cut a groove on the tree trunk through which the rubber fluid slowly flows out. The groove acts like a channel and opens the latex cells and thus allows tapping and draining of the latex. A tin is placed at the end of groove or channel for the collection of the tapped fluid latex. Formation of the groove is due to the scratching and shearing action of the tool head. The blade is made from carbon steel and is heat-treated to obtain a hardness of 30-45 HRC.

 

Specifications: 

Overall length (mm)

Weight (g)

Cutting blade                        

 
Handle                                

 

  

:    300

:    250

:    V-shaped, made from carbon steel, tool      steel or alloy steel

:    Wooden

 

Uses:

 This tool is used for tapping fluid from rubber trees.

 Cost of Machine : Rs 300 - 400/-

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8.5 COCONUT TREE CLIMBER

 

Coconut / Palm Tree Climbing Device

Features:

 

It is a manual climbing device for trees belonging to ‘arecacea’ family such as coconut, areca-nut, palm and for fruit harvesting. It is a simple, safe, easy to use climbing device for any tree and by any person, cutting down the climbing time to 1-2 minutes for a 40 m tall tree as against 4-5 minutes as conventionally required.

 

 

Specification: 

Material of construction

 
Weight (kg)

Input

Output

Man power required

  

:   Mild steel, steel rope(steel wires of 19 strings – as a rope)  and rubber pad.

:     5

:     Muscular power

:    40m in 1-2 min

:    1 person

 

Uses: 

The device is used to climb coconut trees to pluck the coconuts.

 Cost of Machine : Rs 800 - 1000

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8.6  TAPIOCA HARVESTER

 

Features:

 

The tapioca harvester consists of a mainframe with three-point hitch system, shank with depth adjustment and digging blade with pegs. It has provision for adding dead weight on the main frame for penetration of blade in hard soils. The shank is made up of mild steel and the digger blade is attached to it. Provision has been made for changing the depth of digging, according to the tube geometry and moisture condition of the soil. The digging blade is trapezoidal in shape and is made of 13mm thick mild steel plate. Five pegs are provided at the front end of trapezoidal digging blade for easy penetration into the soil and reduce the draft requirement of the unit. Before digging operation, the base cutting and removal of the plant is carried out.

 

Specifications:

 

Length (mm)

Breath (mm)

Height (mm)

Type

Width. of the digger (cm)

Number of rows

Capacity (ha/day)

Power requirement (hp/kW)

 

 

:          1520

:          650

:          1260

:          Mounted type

:          68

:          one

:          1.6

:          35 -45

 

Uses: 

 For harvesting of tapioca tubers.

 Cost of Machine : Rs 20,000 – 25,000/-

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8.7 TEA LEAF PLUCKING MACHINE

 

 

Features:

It consists of a cutter bar, engine, two handles, bag, blower clutch and brakes. It is used for cutting tea leafs. It has high harvesting capacity due to longer cutter bar and cost of plucking is also low. It is suitable for stiffing operation by changing the cutter bar. It has self sharpening cutter bar for longer life.

 

Specifications:

Cutter bar length(mm) 

Cutter bar speed (rpm)

Harvesting capacity (ha/h)

Weight of the machine(kg)

Tea leaves collection

Prime Mover

 

 

  

:      1200. 

:      1800

:      0.12

:     17

:     By air blast into an attached bag

:  Fuel efficient, air cooled 2-stroke 40.6    c.c. capacity  petrol engine capable of developing 20 hp/ 15.0 kW at 7200rpm.

Uses: 

 It is used to plucking the tea leaves. 

Cost of Machine : Rs 2,00,000

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8.8 TRACTOR MOUNTED VERTICAL CONVEYOR REAPER

Features:

 

The machine consists of reciprocating cutter bar assembly, seven crop row dividers, two vertical conveyor belts fitted with lugs, pressures springs, pulleys and gearbox for the power transmission system. The crop row dividers are fitted in front of the cutter bar assembly and the star wheels are mounted over the crop row dividers. The machine is mounted in front of the tractor and the power to the machine is given from tractor PTO with the help of intermediate shaft running beneath the chassis of the tractor and a coupling shaft. Height of the machine above ground is controlled by tractor hydraulic with the help of pulleys and steel ropes.  The crop cut by the cutter bar is held in a vertical position and delivered to one side of the machine by lugged belt conveyors and is made to fall on the ground in the form of a windrow perpendicular to the direction of movement of machine.

 

Specifications:

 

Number and dia. of star wheel

Effective cutter bar width (mm)

Guard spacing (mm)

Cutter bar stroke length (mm)

Size of belt conveyer (cm)

Width of belt (mm)

Cutter bar length (mm)

Weight (kg)

Power source (hp/KW)

 

 

 

:        7(270-282)

:       2000-2210

:       70-80

:       75-80

:       2-3 ply

:       55-60

:       1600-2010

:       197-350

:       35/24.5, tractor

 

Uses:

 

VCR are used for harvesting and windrowing of wheat and paddy crops

 

Cost of Machine(Rs):  35,000

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8.9 SELF- PROPELLED RIDING TYPE VERTICAL CONVEYOR REAPER

 

Features:

 

It consists of crop row dividers, star wheels, cutter bar (76.2 mm), conveyor belt and wire spring etc The riding type vertical conveyor reaper is a self-propelled unit in which the operator rides on the machine. Drive is by means of two large pneumatic wheels and steering is by rear idlers. The prime mover is a 6 hp/4.5 kW diesel engine. Convenient clutch, break, steering, hydraulic system and simple power transmission are provided for ease of operation... This reaper has two forward and one reverse speed. It also cuts the crop and drops it in windrow on one side of the field.

 

Specifications:

 

Length (mm)

Width (mm)

Height (mm)

Weight (kg)

Operating speed (km/h)

Total grain losses (%)

Field capacity (ha/h)

Fuel consumption (lit/h)

Field efficiency (%)

Labour requirement (man-h/ha)

Power Requirement(hp/kW)

 

 

:      3185

:      1900

:      1450

:      1530

:      3.0-3.5

:      5.0-5.9

:      0.25-0.30

:      0.90-1.15

:      60-70

:      5-6

:      6/4.5, engine

 

Uses:

 

It is suitable for harvesting rice, wheat, soybean and other cereals and oilseeds.

 

Cost of Machine : Rs.1,20,000/-

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8.10 SELF-PROPELLED REAPER BINDER

 

Features:

 

Reaper-Binder is a unique harvesting machine that reaps the crop as well as binds it simultaneously with twine made of plastic or jute.  This Innovative mechanical machine ensures 100% recovery of straw with negligible grain losses at a surprisingly low cost of operation.  This machine is mainly used for harvesting Wheat, Paddy, Oats, Barley and other grain crops. 

 

 

Specifications:

 

Width of Cut(mm)

Height of Cut (mm)

Gear

Weight of Machine(kg)

Power Requirement (hp/kW)

 

 

 

 

:       1216

:       30 to 50.

:        4 Forward & 1 Reverse

:        400.

:       10.2 / 7.5, - Diesel Engine

 

Uses:

 

It can be used for harvesting and binding of grain crops of height up to 85 to 110 cm in a single operation. It can harvest and bind1 acre of field in 1 hour, with consumption of 1 liter diesel only. The cutter bar for harvesting Berseem, Mentha, Lucern, Paddy stubbles and Other fodder crops can also be attached to the same machine.

 

Cost of Machine : Rs.2,00,000/-

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8.11 TRACTOR MOUNTED 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.

 

Specifications:

Cutter bar length (mm)

Cutting height (mm)

Threshing drum diameter (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

:      540-1050

:      1240

:      1215

:      1240

:      1215

:      3.28

:      2 -11.4

:      8200

:      90-110/67.5-82.50, engine

 

Uses:

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

Cost of Machine : Rs.12,00,000 – 14,00,000

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8.12 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 .In Kerala track type self-propelled combines are also in use for harvesting  paddy crop.

 

Cost of Machine : Rs.14-16 lakh

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