Browsing by Author "Jayan, P R"

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Computer aided analysis of 'sit and stand' type coconut climbers for mechanical stability
(Department of Farm Machinery and Power Engineering Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2018) Pooja, V; Jayan, P R
Coconuts are harvested by climbing the palm and cutting the nuts down by hand. Manually climbing up and down the palm is hazardous and tedious. Now a days a few models of mechanical coconut palm climbers are available to overcome these drawbacks. Testing the mechanical strength and stability of the coconut palm climbers is necessary to ensure its safe performance under working condition. Among these types, KAU and Farmer’s models were selected and its three dimensional models were generated in Solidworks 13.0 software. The static and fatigue analysis of these selected models were carried out in the ANSYS 15.0 software. The assembly of each component of the top and bottom frames of the models were created and saved in step file format. The file was then imported to the ANSYS 15.0 software for the static and fatigue analysis. Preprocessing steps such as meshing, selection of material and application of boundary conditions were then carried out sequentially to establish static and fatigue problems. In the KAU model top and bottom frames were steel and aluminium materials, wherein the Farmer’s model top and bottom frame were made of structural steel. The boundary conditions imposed are the application of loads and fixing of supports. Various loads of 400, 500, 600, 700, 800, 900 and 1000 N were applied and under each load the analysis was carried out. In the KAU model, the inner face of the bent tube and V tube and in the Farmer’s model, the rope and curve plate were considered as fixed supports. The static analysis interpreted were the equivalent (Von-Mises) stress, equivalent elastic strain and total deformation while fatigue analysis interpreted the fatigue life and factor of safety. The results showed that as the load increased the Von Mises stress was found increased. Also, there were decreasing trends for the factor of safety and fatigue life. The top frame of KAU models have factor of safety more than three, two and one up to 400, 500 and 1000 N load respectively. The infinite fatigue life cycles were observed up to 800 N. The bottom frame of KAU model have factor of safety more than one up to a load of 1000 N and have infinite fatigue life cycles up to 1000 N load. Hence KAU model is safe to operate up to a load of 1000 N. The top and bottom frames of the Farmer’s model also found out the factor of safety more than one and have infinite fatigue life cycles up to load of 1000 N. Hence Farmer’s model is safe to use up to a load of 1000 N. further changes in material, design or dimensions are suggested to get more factor of safety for loads from 700 to 1000 N for both the selected models. As there is no specified test codes available for manually operated mechanical tree climbers, a draft test code with Minimum Performance Standard (MPS) was also prepared under this study.
Design analysis of kau pokkali paddy harvester towards the development of its scale down prototype
(Department of Farm Machinery and Power Engineering Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2018) Venkata Reddy, H K; Jayan, P R
The term ‘Pokkali’ used in the common parlor refers to a salt tolerant traditional rice cultivar grown in the coastal saline soils of Kerala, India. The Pokkali field is a unique eco-system prevailing in the coastal tract of Kerala with rich bio diversity and amazing capacity to produce organic rice and shrimp alternatively. Rice is grown during non-saline period and the farmers carry out shrimp culture during the saline phase with both having unique symbiotic benefits. Pokkali areas lie in Trissur, Ernakulum and Alappuzha districts covering a total area of 8500 ha. It spreads over 34 Krishibhavans of these three districts. In the saline, water-logged Pokkali farm lands, rice and shrimps are farmed alternatively. The conventional method of harvesting of Pokkali paddy crop by using sickles. The various farming operations in Pokkali paddy cultivation, the harvesting is done by women labourers by walking on the swampy and marshy inundated paddy fields at waist-deep water, which is laborious, tedious and cumbersome. Though a number of paddy combine harvesters are commercially available, none cannot be used in such marshy water logged areas for harvesting paddy. Hence, a power operated floating harvester with provisions for harvesting and conveying the ear heads (panicles) of submerged paddy was developed at KCAET, Tavanur. The overall size of the harvester is 9.6 x 2.2x 2.2 m with a total weight of about 3 tonnes. Due to the over size and weight, the manoeuvrability become a great problem for transportation and operation in small paddy lands. It necessitated designing a scale down proto type of the harvester to operate in all Pokkali areas for easy transportation and good manoeuvrability. The major functions of a Pokkali paddy harvester are floating in water/moving in puddled soil, cutting and conveying of the panicles. The design analysis of the harvester is sequentially carried out for the floating barge, harvesting unit and hydraulic system. Hydraulic drive system consisted of a hydraulic pump, pressure gauge, valves, filters, etc. to guide and control the system. The capacity of the hydraulic tank was 150 litres and double acting hydraulic pump has 61.0 l min-1. Harvesting unit of the Pokkali paddy harvester consists of a reel, cutter bar and conveyor. Reel delivers the stalks to the cutting mechanism, the cutter bar cuts crop and conveys through front conveyor and transferred to in the central conveyor. Width of the cutter bar was 2.1 m with serrated blade to avoid spilling of the stalks. The vertical centre of gravity of the harvester was designed as 0.854m and longitudinal centre of gravity as 4.58 m. It was found out that the design of the existing KAU Pokkali paddy harvester was perfect considering the buoyancy and stability aspects. The overall size of the newly designed scale down prototype is 6.2 x 1.7 x 1.7 m with a total weight of about 1700 kg. A scale down prototype of the harvester is designed in such a way that to suit for fragmented Pokkali areas. The vertical centre of gravity of the scale down prototype is 0.58 m, longitudinal centre of gravity is 2.67 m and transverse centre of gravity is zero. As the transverse centre of gravity is zero, scale down Pokkali paddy harvester is stable to float and longitudinal centre of gravity lies near to the centre and adjacent to the front and rear side of the harvester, it become a well-balanced machine.
Development and performance evaluation of a low cost water-wheel for lifting water at low heads
(Department of Farm Power Machinery and Energy, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 1992) Jayan, P R; Sankaranarayanan, M R
Development and performance evaluation of a tractor operated tapioca
(Department of farm machinery and power engineering, kelappaji college of agricultural engineering and technology,Tavanur, 2023-09-19) Kalyan Chakravarthi, N L.; Jayan, P R
Development and performance evaluation of a tractor powered manure pulverizer cum application
(Department of Farm Machinery and Power Enginnering, Kelappaji College of Agriculture Engineering Tavanur, 2020) Sai Mohan, S; Jayan, P R
Development and performance evaluation of a windrower unit for KAU root crop harvester
(Department of Farm Machinery and Power engineering, Kelappaji College of Agricultural Engineering and Technology , Tavanur, 2022-03-25) Suraja, A R.; Jayan, P R
A tractor-operated root crop harvester was developed by KAU especially for harvesting coleus, turmeric and ginger. The developed machine increased the yield and reduced the losses and damages caused to the tuber/ rhizome when compared to the conventional method of harvesting. However, there was a need for separating the soil adhered to the tuber/ rhizome and windrow the tuber/ rhizome at the rear end of the machine for easy collection. Therefore, in the present study, a windrower unit attachment to the KAU root crop harvester was developed and evaluated the performance of the developed machine for optimizing the operational parameters. The soil and crop properties relevant to the design of the windrower unit were determined. The major components of the developed windrower unit are the mainframe, power transmission system which includes the chain sprocket system and the crank rocker mechanism and the windrower unit with a soil separator. The developed prototype was provided with to and fro as well as vertical oscillatory motion. The overall dimension of the developed unit was 1000 × 900 mm, with a windrowing width of 180 mm. The operational parameters for optimizing the machine were at three levels of amplitude of oscillation (60, 100 and 140 mm), inclination of windrower unit (5, 10 and 15 deg.) and crank rotational speed (220, 270 and 300 rpm). The performance of the machine was determined by considering the parameters including soil separation index, conveying efficiency, damage percentage, power requirement, fuel consumption, field capacity and field efficiency. The soil separation index for coleus was maximum with 83.27 per cent, followed by turmeric and ginger with 78.29 and 77.96 per cent respectively at 100 mm amplitude, 10 deg. inclination and 270 rpm rotational speed. The maximum conveying efficiency for coleus, turmeric and ginger were 92.06, 93.16 and 92.92 per cent respectively obtained at 140 mm amplitude, 10 deg. inclination and 270 rpm rotational speed. The minimum damage percentage of 1.99, 1.51 and 1.30 was obtained at 100 mm amplitude, 10 deg. inclination and 270 rpm rotational speed for 138 coleus, turmeric and ginger respectively. The minimum power requirement for coleus, turmeric and ginger was 2.58, 3.38 and 3.67 kW respectively at 100 mm amplitude of oscillation, 5 deg. inclination and 220 rpm rotational speed. The fuel consumption of 5.34, 5.56 and 5.13 L h-1 was observed for harvesting coleus, turmeric and ginger respectively. The effective field capacity for coleus and ginger was 0.15 ha h-1 with a field efficiency of 0.16 per cent. For turmeric, the field capacity and field efficiency determined were 0.16 ha h-1 and 94.12 per cent respectively. The standardized machine parameters are 100 mm of amplitude of oscillation, 10 deg. of inclination of windrower unit and 270 rpm of crank rotational speed. The fabrication cost of the developed prototype was computed as Rs 20000. The cost of operation per hour and hectare is Rs 996 and Rs 6640 respectively. The total cost of harvesting using harvester including collection and bagging was observed as Rs 28390 per ha. The cost savings for harvesting including collection was 67.37 per cent for coleus and 60.84 per cent for turmeric and ginger. The savings in labour for coleus harvesting was 75 per cent whereas for turmeric and ginger, it was about 70 per cent when compared to the conventional method. About 34 per cent of cost reduction and 30 per cent of labour reduction was observed when the KAU root crop harvester was operated with the developed windrower attachment. The break-even point and payback period of the machine were 67.78 hours per annum and 1.46 years respectively
Development and testing of a continuous power operated coconut husker
(Department of Farm power Machinery and Energy, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2012) Anu S Chandran; Jayan, P R
Development and testing of a tractor operated coconut basin lister cum fertilizer applicator
(Department of Farm Machinery and Power Engineering, Kelappaji College of Agricultural Engineering and Technology,Tavanur, 2023) Jinukala Srinivas; Jayan, P R
The basin listing and fertilizer application are important operations for the optimum growth of coconut palms. The conventional methods of basin listing and fertilizer application for coconut palms are labour intensive, drudgery prone, time consuming, accident prone, cost intensive and requires skilled labour. Therefore, a research work was undertaken to develop a tractor operated coconut basin lister cum fertilizer applicator considering soil, crop, fertilizer and machine parameters. The developed machine composed of gear box, power transmission system, main frame, main shaft and its cover, rotor shaft, cutting blades, frame, chain cover, hitch system, hopper, agitator, metering roller, metering housing, delivery pipe and other parts. The lab model of fertilizer applicator was developed and tested to finalize the metering roller type for prototype of fertilizer applicator. The recommended fertilizer application rate of 1.56 kg palm-1 was obtained for edge cell metering roller with lab model of fertilizer applicator. The recommended fertilizer application rate of 1.56 kg palm-1 , highest coefficient of uniformity of 99.2 per cent and desirability of 0.98 was obtained for edge cell metering roller flute volume of 1.43 × 10-5 m3 and ‘L’ shape agitator with lab evaluation of prototype of fertilizer applicator. The desirable depth of cut of 10.0 cm was obtained for forward speed of 2.0 km·h -1 , blade to plate angle of 110 deg. and skid height from ground level of 17.5 cm; minimum time per basin formation was attained for forward speed of 2.5 km h -1 , blade to plate angle of 100 deg. and skid height from ground level of 20.0 cm respectively; higher bund height, lower bund width and lower soil pulverization index was obtained for forward speed of 2.0 km h -1 , blade to plate angle of 110 deg. and skid height from ground level of 17.5 cm respectively with basin lister in the field. By numerical optimization, the optimum parameters of machine are 2.0 km h -1 forward speed, 110 deg. blade to plate angle and 17.5 cm skid height from ground level. The number of basins formed per hour, actual field capacity and fuel consumption of tractor operated basin lister cum fertilizer 186 applicator is 20, 0.15 ha·h -1 and 6.7 l h -1 respectively. The cost of prototype of tractor operated basin lister cum fertilizer applicator is Rs.85,000. The cost of operation of machine for basin listing and fertilizer application operations is found out as Rs.881 h -1 and Rs.5874 ha-1 . The breakeven point, payback period and benefit cost ratio of the machine is 75 hours per annum, 1.60 years and 3.08:1 respectively. The saving in cost of operation of machine is Rs.18,126 ha-1 and 75.50 per cent when compared to conventional method of basin listing and fertilizer application operations.
Development and testing of potting mixture filling machine for filling grow bags
(Department of Farm Machinery and Power Engineering, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2019) Amal Dev, J; Jayan, P R
Grow bag cultivation is getting popular in our state due to urbanisation. It necessitated easy method of filling grow bags as per the favourable agronomic conditions for crop growth. A grow bag filling machine was hence developed and tested for filling grow bags of different size. The machine was developed by modifying the KAU manure pulverizer by suitably fixing a collecting hopper beneath the sieve, grow bag holders attached to one leg of the stand for holding different bags and pedal for controlling the filling. The machine consists of an electric motor, a feeding chute, pulverizing drum, transmission unit, rotating blades, sieve and a supporting stand. Materials were pulverized and mixed due to rotations of the blade which caused the cutting and shearing actions and got pulverized in the clearance between the blade and the sieve. The grow bag mixture was discharged through the sieve and got collected in the bottom hopper. A pedal operated valve was inserted into the small hopper to facilitate metered discharge of the potting media. As and when it is allowed to open a metered quantity of the mixture was discharged into the grow bags placed below it. The machine was tested to determine its performance and to optimize the machine parameters and material parameters at different moisture contents of 10,15,20,25 and 30 percent, clearances of 15, 20 and 25 mm, two ratios of soil: coir pith: FYM as 1:1:1 and 1:0.5:1 mixture and for three bag sizes of small medium and large. Dried soil, coir pith and FYM get pulverized, mixed and filled in the grow bags. The properties of grow bag mixtures obtained were found out and were on par with the ideal recommendations. The properties such as water holding capacity (165.02 percent), bulk density (0.493 g.cm-3), porosity (65.43 percent), fineness modulus (5.31), angle of repose (46.66º), pH (6.76), electrical conductivity (2.19 dS.m-1) and uniformity of mixture were observed at the ratio 1:1:1 (S:C:FYM) at the moisture content of 15 percent. Performance parameters such as weight of bags filled (6.18 kg) time of operation (230 s), capacity of the machine (385 kg.h-1), number of bags filled (63) and energy consumption (0.31 kWh for four bags) were obtained with an overall efficiency of 97.70 percent. The cost of grow bag filling machine is Rs.49500. The hourly cost of operation for the machine is calculated as Rs.357. The analysis of the results indicated that the performance of the machine was optimum for filling large grow bags at 15 percent moisture content at the ratio S: C: FYM as 1:1:1 for all clearances.
Development and testing of tractor operated bed former for seed bed preparation in Kaipad region
(Department of Farm Power Machinery and Energy, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2012) Rajesh, A N; Jayan, P R
Paddy cultivation in Kerala is mainly done in dry and wet lands. Kuttanadu, pokkali, Kole and Kaipad lands are mainly lying below sea level and needs much attention especially during bund preparation and nursery raising periods. Kaipad is a land lay in Kannur district of the state extending to an area of 600 ha. It is under the tidal effects of sea water carrying severe salinity and high pH. Paddy cultivation in this region is made on seed beds of about 45 cm height to bring down the salinity and acidity of the soil through leaching. However, manual method of mound making is very laborious intensive and has become a deterrent for the farmers to continue rice farming. Keeping this in view, a tractor operated Kaipad bed former was developed to prepare the seed beds and field tested. Also the cost of operation was compared with the conventional and tractor operated ridger. The height of the seed beds was dependent upon the angle of the plough bottom, speed and depth of operation. To optimize these three factors, tests were conducted under dynamic condition in a test plot. The height of the seed bed was observed to be the maximum at 40 degrees of the plough bottom. The maximum height of bed was formed at a speed of 2.0 km hˉ¹ and depth of 20 cm. To reduce the draft of the implement the speed was set at 1.5 km hˉ¹ and depth of operation at 15 cm. The field performance of the bed former based on the optimized machine parameters, the Kaipad bed former was evaluated and compared with the tractor operated ridger and conventional method. The average height and top width of the seed bed obtained with the Kaipad bed former and ridger were 34.7 cm, 18.4 cm and 29.4 cm and 23.2 cm respectively. The minimum draft required for the Kaipad bed former and tractor operated ridger was 402.6 kgf and 398.6 kgf and draw bar power was 8.03 hp and 7.8 hp respectively. The fuel consumption with the tractor operated Kaipad bed former was found as 6.8 l hˉ¹; while it was 6.6 l hˉ¹ with the tractor operated ridger. Field efficiency of the Kaipad bed former was 73.9 percent compared to 70.5 percent for the tractor operated ridger. Wheel slippage was found out as 19.79 percent for Kaipad bed former and 17.7 percentages for tractor operated ridger. With the tractor operated Kaipad bed former, the soil acidity and salinity could be reduced from a pH value of 5.7 to 6.5 and 15.7 mmhos cmˉ¹ to 2.1 mmhos cmˉ¹. Yield obtained from the plots operated with conventional method, tractor operated ridger and Kaipad bed former was respectively 2625 kg haˉ¹, 2766 kg haˉ¹ and 2800 kg haˉ¹. Total cost of operation for mound making by conventional method and tractor operated bed former are respectively Rs.12000 and Rs. 2480. The cost of the tractor operated Kaipad bed former is Rs. 18875.
Investigations on soil crop and machine parameters towards the development of a root crop harvester
(Department of Farm Machinery and Power Engineering, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2020) Basavaraj; Jayan, P R
Modification and testing of a coleus harvester
(Department of Farm Power Machinery and Energy, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2015) Younus, A; Jayan, P R
Modification and testing of tractor operated KAU banana sucker uprooting machine
(Department of Farm Power Machinery and Energy, Kelappaji College of Agriucltural Engineering and Technology, Tavanur, 2017) Naveen, B V; Jayan, P R
Mount strewing machine for Kaipad
(Department of Farm Machinery and Power Engineering, Kelappaji College of Agricultural Engineering and Technology, Tavanur, 2024-03-16) Varun Raveendranathan; Jayan, P R
In the traditional Kaipad paddy cultivation method, the process includes creating mounds for planting germinated seeds. These mounds are left in the field for around 45 days, allowing leaching to decrease soil salinity and creating optimal conditions for seed germination. To uphold the biodiversity of the Kaipad ecosystem, the current cultivation technique involves manually spreading seedlings around the mounds using a spade. Challenges in Kaipad cultivation encompass labour shortages, strenuous work for farmers, high production costs, and a dearth of mechanization. In response to the challenges of labour scarcity and high production costs in Kaipad cultivation, a power-operated mound strewing machine has been developed. This machine minimizes the risk involved in the process of seedling dispersal, addressing the labour-intensive nature of the task, and potentially improving efficiency in the cultivation process. The developed strewing machine comprises a prime mover, connecting shaft, gearbox, output connection, main frame, triangular frame, shaft, and blade. This entire unit was fabricated in the research workshop of KCAET, using standard design procedures. To achieve optimal machine efficiency, it is essential to optimize the parameters involved in the strewing operation. The various levels for the three parameters during strewing are rotational speed (25 and 30 rpm), type of blades (Rectangular, Trapezoidal, and Curved) and depths (15 , 20 and 25 cm) respectively. The dependent variables under consideration include field capacity, damage percentage, weight of soil-seedling composite and fuel consumption. The optimal parameters for the strewing process were identified as follows: rotational speed of 25 with a rectangular blade type at a depth of 15 cm. The machine developed was operated by two men labours. It has a weight of 47.2 kg. Performance parameters, including field capacity, fuel consumption, damage percentage, and weight of soil-seedling composite, were determined as 0.019 acre h-1, 42.67 L h-1, 4.3% and 7.37 kg, respectively. The total cost of the machine was Rs. 31,000, and the cost of operation was calculated at Rs. 415.47 per hour. Comparing the operational costs, the conventional method incurs Rs 61,625 per hectare, whereas the developed mound strewing machine operates at Rs 55,396 per hectare.
Tractor operated pnematic no-till pulse planter with electronic control system
(Department of Farm Machinery and Power Engineering, Kelappaji College of Agricultural Engineering and Food Technology , Tavanur, 2024-09-06) Amit Kumar; Jayan, P R
Addressing the global population surge expected to reach 10.4 billion by the mid-2080s, especially in densely populated regions like India, poses significant agricultural challenges. Integrating pulses into sustainable agriculture is crucial for food security due to their benefits in enhancing soil fertility and resilient ecosystems. This study focuses on developing a tractor operated pneumatic no-till pulse planter with electronic control system for black gram and horse gram, essential pulses in Kerala. Traditional planting methods are labor-intensive, inefficient and costly. The proposed planter ensures accurate seed placement, uniform emergence, and minimal soil disturbance. An electronic control system enhances precision in seed spacing placement and improves overall efficiency. The objectives of the study include determining seed properties, developing planter with electronic control system, and evaluating the planter performance. A vacuum disc-type metering mechanism was chosen for its precision in seed singulation, minimal damage, and adaptability to various seed sizes and shapes. The investigation included laboratory experiments for seed metering mechanisms, calibration, testing, and field performance evaluation of the pneumatic planter for the black gram (VBN-6) and horse gram (KS-2) seeds. Optimal settings for vacuum pressure, plate hole size, forward speed, and the location of sensors were identified through extensive trials and statistical analysis. The study observed that black gram seeds have a length of 2.32-3.88 mm, width of 1.99-3.65 mm, and thickness of 1.56-2.07 mm, whereas horse gram seeds are larger, with a length of 6.02-6.27 mm, width of 4.10-4.35 mm, and thickness of 2.16-2.45 mm. The mean diameter of black gram seeds is 2.62 mm, and for horse gram, it is 4.22 mm. The optimum terminal velocity is 8.21 m s-1 for black gram and 8.68 m s-1 for horse gram. The pneumatic planter uses a vacuum disc-type precision seed metering mechanism with a vertically oriented rotating disc and an aspirator blower to ensure precise seed placement. The planter was modified using electronically controlled system using a stepper motor, which was regulated by a microcontroller for precise seed plate rotation. The electronic system includes a stepper motor, rotary encoder, proximity sensor, Arduino Nano microcontroller, vacuum pressure sensor, micro-step drive, battery, and protective enclosure. The proximity sensor detects wheel spokes, the rotary encoder provides speed and position feedback, and the vacuum sensor activates the system under optimal conditions. Laboratory experimental results on the pneumatic seed metering mechanism for black gram and horse gram showed optimal seed spacing and reduced miss and multiple indices with specific settings. The use of encoder sensor ensured the required spacing of 15.0 cm with a lower miss index of 1-3 percent compared to the proximity sensor. Smaller hole sizes and higher vacuum pressures improved seed placement accuracy. The optimal spacing for horse gram was achieved with a 2.1 mm hole size, 4.0 kPa vacuum pressure, and 1.0 km h-1 speed, resulted the required spacing of 9.2-12.9 cm and with the lower miss index of 0.5 percent with encoder sensor. Encoder sensor, forward speed of 2 km h-1 and vacuum pressure of 4 kPa were selected for field evaluation. Field evaluation of a pneumatic planter with electronic controls for black gram and horse gram assessed impact with different type of furrow opener and locations of the encoder. When the location of encoder on steel wheel with shoe type furrow opener was used a spacing of 14.8 cm was obtained a consistent miss index of 1.2 percent for black gram. The encoder on the steel wheel lowered the multiple index to 2.5-2.7 percent and improved quality of feed index from 96-96.2 percent for black gram. Similar type of result showed with horse gram. The location of the encoder on the steel wheel showed better results compared to its location on the pneumatic wheel due to reduced slippage. Inverted t-type furrow opener work well in no-till field. Germination rates were optimal at 95-96 percent in both black and horse gram. The study recommended the location of encoder on steel wheel with shoe-type furrow opener showed best performance. The field capacity and field efficiency of planter was 0.25 ha h-1 and 90 percent respectively. The total cost of the developed planter with electronic control system was ₹1,80,000. The pneumatic planter with electronic controls incurred an operating cost as ₹860.55 per hour and ₹3072 per hectare. As per the prevailing wage rates, the cost for manual sowing is ₹4054 per hectare, the planter saved ₹982 per hectare. Hence, the 24 percent saving in cost of operation is found out ensured by using this developed planter. Break-even point of 79.22 hours per year and a payback period of 1.13 years are expected. It is concluded that the pneumatic planter with electronic control significantly improves planting performance for black gram and horse gram by ensuring precise seed placement, reducing misses and multiples, and enhancing quality and precision indices. Economic analysis confirms its cost-effectiveness and potential to increase crop productivity and profitability for farmers.