KSNM Cono Weeder
KSNM Cono Weeder is a manually operated weeder used to remove weeds in paddy crops.
The Cono Weeder is designed for weeding paddy fields. The product is manually operated and the weeds are uprooted by the teeth of the weeder and buried in the mud by the push and pull operations.
25.20 USD (Rs 1800) converted on June 2019
Small holder farmers
Users can purchase product directly from the manufacturer
List of crops that this technology weeds
The rate of work, measured in hectares per hour
List of materials used to build the product
Overal weight of the product, measured in kilograms
Type of energy used to power the weeder
The cones are comprised of plastic material and the steel blades are embedded in it. It has a single row and is operated by a single person in a push and pull operation. It has two conical rotors mounted in tandem with opposite orientation. Smooth and serrated blades are mounted alternately on the rotor to uproot and bury weeds when the rotors create a back and forth movement. Each cone has 6 serrated blades and 6 plain ones, each of 2 mm in thickness.
|Number of Operators||One person|
|Type of operation||Push pull mechanism|
|Number of rows||Single row|
|Width of operation||140-160mm|
|Number of cones/rotors||2|
|Cone material||Plastic moulded with MS blades|
|Blades||6 each of 2mm thickness|
|Float assembly||1mm thickness|
|Depth of operation||upper 30mm of soil|
|Field coverage||0.10-0.12 hectare /day of 8 hours of operation|
20 mm dia 18 SWG
Length: 1200 mm
25 mm dia 18 SWG
Length: 430 mm
See image of typical cono weeder. It is recommended that the weeder is used at least 3 times during the season, starting 20 days after sowing.
There is no technical support provided and users are expected to maintain the product on their own
Replaceable components include the cones
Through field evaluations in lowland paddy fields the effective field capacity, weeding index, pushing force and other factors were measured for KSNM cono weeder with moulded cones and compared to commercial ones with mild steel cones. Results are shown in the table.
|Type of weeder||Difference over commercial weeder, percent|
|Commercial weeder||Cono weeder with plastic moulded cones|
|Effective field capacity, m2/h||190.0||265.0||28.30|
|Weeding index, per cent||75.2||81.1||7.04|
|Pushing Force, N||43.3||37.50||-(13.39)|
|Plant damage, percentage||6.1||5.90||-(3.27)|
Central Institute of Agricultural Engineering CIAE– Reg. Centre in Coimbatore, India; PSG College of Tech. Coimbatore, India; A.R. Soman Govt. Engg. College, Thrissur, India
Safety hazards related to this product include blades on the cones.
Waghmode, R.S. ,Shinde, S.R., Dixit, A.K., Chanchure, A.A., Jadhav, K.H. and Gudur, S.E., 2015, Solar power tiller, IJESAT, India, 5(3), pp. 149-156.
Mohan, M., Sundararaj, G., Ravindra, N. and Soman A.R., Role of Polymer in Weeding and Seeding Machinery in Agriculture Rice Mechanization, International Journal of Science and Engineering Applications Special Issue NCRTAM ISSN-2319-7560 (online)
The cones are made of mild steel based on International Rice Research Institute, Philippines design. The plastic part of the cones complies with Indian Standard IS: 10910 on “Specifications for Polypropylene and its copolymers for its safe use in contact with foodstuffs, pharmaceuticals and drinking water.”
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