9.2
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.
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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, tractor
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Uses:
Suitable for threshing paddy, ragi, jowar, maize,
sunflower, wheat, mustard etc.
Cost of Machine : Rs.60,000 – 80,000/-
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9.3 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, 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 the crop axially. Two aspirator blowers and
two sieves are provided for cleaning.
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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
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Uses:
Used for threshing of paddy crop.
Cost of Machine : Rs.80,000/- |
9.4 MAIZE
DE-HUSKER CUM SHELLER |
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Features
Maize dehusker 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 lower sieve (mm)
Concave clearance (mm)
Opening size of concave (mm)
Moisture content of cobs(%)
Threshing Capacity(kg/h)
Power requirement(hp/kW)
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Spike tooth
type
1765
1065
1570
480
325
16.4
Spike tooth
centrifugal
2
12
2
50
5 x 5
12-28
450-650
35/26.25 |
Axial type
3400
1140
2190
495
1460
13.7
Peg type
centrifugal
3
12.5
3
50
5.1 x 5.1
15-28
1200-2800
35/26.25 |
Uses: Used for threshing of maize cobs.
Cost of Machine : Rs.60,000/- |
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