9.0
THRESHING EQUIPMENT
9.1
MULTI -CROP THRESHER
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Features:
The
thresher consists of rasp bar threshing cylinder, oscillating
sieves, concave and winnowing and cleaning attachment. The
rasp-bar cylinder is made of cast iron rings, sheet metal and
toothed racks and is fitted on the main shaft running on two heavy
pedal bearings. Various pulleys of different sizes are fitted on
this shaft to transmit power to winnowing and fan attachment.
Adjustments for cylinder and blower speeds and concave clearance
are provided to make the machines suitable for threshing various
crops. It has a safe feeding chute attached to it as per BIS
standard. I hilly tracts small power threshers need to be
introduced.
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Specification:
Diameter of beater shaft (mm)
Length of beater shaft (mm)
Diameter of cylinder with rasp-bar (mm)
Length of the cylinder(mm)
Height of hopper from ground level (mm)
Capacity (kg/h)
Power requirement (hp/kW)
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: 42
: 1400
: 416
: 560
: 1500
: 600-1000
: 7.5/5.6
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Uses:
It is suitable
for threshing paddy, ragi, jowar, maize, sunflower,
wheat, mustard etc.
Cost of Machine : Rs.60,000 – 80,000/-
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9.2
AXIAL- FLOW PADDY THRESHER
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Features:
It consists of a threshing cylinder, concave, cylinder
casing, cleaning system and feeding chute. In axial flow
concept, the crop is fed from one end, it moves axially and
the straw is thrown out from the other end after complete
threshing of the crop. During threshing, the crop rotates
three and half times around the cylinder and all the grains
get detached. The threshing cylinder is of peg type. The
casing of the thresher has 7 louvers for moving |
Specifications:
Length (mm)
Width (mm)
Height(mm) :
Feeding device :
Length of feeding chute (mm) :
Width of feeding chute (mm)
Type of cylinder
Cylinder size, tip diameter x length(m m)
Length of concave (mm)
Width of concave (mm)
Concave clearance (mm)
Type, size and number of blowers
Weight (kg)
Power requirement(hp/kW) : |
: 2030
: 3050
: 1960
: Feeding chute, manually
: 905
: 110
: Spike tooth
: 770 x 1500
: 840
: 570
: 18-21
: Aspirator type, two blowers of
400 mm diameter and 160 mm
width
: 730
: 35/26.25, tractor PTO |
Uses:
It is used for threshing of paddy crop.
Cost
of Machine : Rs.80,000/-
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9.3
PEDAL OPERATED PADDY
THRESHER |
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Features:
It consists of wire-loop type threshing cylinder, power
transmission system, mild steel sheet body and foot pedal. The
threshing cylinder consists of wire-loops of ‘U’ shape embedded in
wooden or metallic strips joined to two discs. A shaft carries the
threshing cylinder and is connected to the transmission system.
The transmission system consists of meshed gears or sprocket-chain
mechanism. The larger gear or sprocket is connected to foot
pedal/bar with links. The foot pedal/bar is always in raised
position. On pressing the pedal the threshing cylinder starts
rotating. For continuous rotation of the cylinder, the pedal is
lowered and raised repeatedly. For operation, paddy bundle is held
in hands and earhead portion of the crop is placed on the rotating
cylinder. The wire-loops hit the earheads and grain get detached
from the rest of the crop.
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Specifications:
Dimensions (LxWxH) (mm)
Cylinder size (mm)
Loop wire diameter (mm)
Number of wire loops
Number of wire loop strips
Transmission system
Weight (kg)
Power source |
: 1250 x 650 x 630
: 400 diameter x 600 length
: 4
: 44
: 12
: Pedal Crank mechanism with 1:4 gear ratio
: 36
: One persons
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Uses:
It
is used for threshing of paddy crop. It easy to operate and does
not require much effort in its operation as it is operated by
foot.
Cost of Machine : Rs.10000/-
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9.4
MAIZE DE-HUSKER/SHELLER |
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Features:
Maize de-husker cum sheller are of two types namely, spike tooth
type and axial flow type. In the spike tooth type sheller, pegs
are staggered at varying heights for better shelling efficiency.
The spikes are placed in 6 rows with 6 spikes in each row. The
sieves have 1.25 cm diameter opening to separate the shelled maize
from husk. In axial flow type threshers, pegs are provided on the
cylinder and louvers were provided on the upper periphery of the
drum to convey the crop to the outlet.
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Specification:
Length (mm)
Width (mm)
Height (mm)
Dia. of threshing cylinder (mm)
Length of threshing cylinder (mm)
Cylinder speed (m/s)
Type of threshing drum
Type of blower
No of sieves
Opening size of upper sieve (mm)
Opening size of middle sieve (mm)
Opening size of lower sieve (mm)
Concave clearance (mm)
Opening size of concave (mm)
Moisture content of cobs (%)
Threshing Capacity(kg/hr)
Power source (hp/kW)
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Spike tooth type
1765
1065
1570
480
325
16.4
Spike tooth
Centrifugal
2
12
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2
50
5x5
12-28
450-650
35/26, Tractor
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Axial type
3400
1140
2190
495
1460
13.7
Peg type
Centrifugal
3
12.5
7
3
50
5.1 x 5.1
12-28
1200-2800
35/26, Tractor
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Uses:
It is used for threshing of maize cobs.
Cost of Machine : Rs.60,000/- |
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