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paddy thresher
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- 2. PADDY THRESHER • Thethresher is consisting of feeding chute, threshing cylinder, blower, straw outlet and grain outlet. • The body is made of high quality steel and sheets to withstand maximum wear and tear. • The feeding system is chute type and the power is transmitted from the prime mover to threshing cylinder though belt and pulleys.
- 3. Technical specifications: • Overalldimensions (in m) : L – 1.6 , W -1.58 , Height -1.65 • Weight - 250 kg • Engine power requirement - 5 hp Diesel Engine or Electric Motor • Thresher cylinder Speed (rpm) - 510 • Cleaning system – Blower • Feeder capacity - 900 kg /hr (789 kg / lit)
- 4. • Grain output- 444 kg /hr (370 kg / lit) • Thresher efficiency (%): 96.5 - 96.8 • Cleaning efficiency (89.06%) • Broken grain proportion (0.632%) • Spilled grain proportion (0.283%) • Blown grain proportion (0.395) • Unthreshed grain proportion (1.627%).
- 5. Salient features: • Itcan thresh paddy without chopping the straw of the moist crop • Low cost and high power threshing machine • The straw, chaff, grains are separated and thrown separately thus reducing drudgery. • The device is easy to install and maintain. • It does not chop the straw and hence we get it in full length.
- 7. SUNFLOWER THRESHER • Itconsists of a threshing cylinder, concave, casing fitted with louvers, cleaning system, feeding hopper and frame. • The cylinder concave clearance is 40 mm and is uniform throughout its length. • The diameter of cylinder is 65 cm and length 150 cm.
- 8. • The openingof top sieve is 16 mm and of lower sieve 6 mm. • Recommended cylinder and blower speeds are 300-350 rpm and 1200-1400 rpm respectively. • A tractor or 7.5 hp motor can operate machine. • The machine has a capacity of 600-900 kg/h of clean grain. • Breakage rate: less than 0.1% • Threshing rate: More than 99.9%
- 9. PAU axial flowsunflower thresher
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- 14. MAIZE DEHUSKER-CUM SHELLER •In this 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.
- 16. Specifications: • Length(m) :-1.76 •Width (m) :-1.06 • Height (m):- 1.57 • Dia. of threshing cylinder (m):- 0.48 • Length of threshing cylinder (m):- 0.33 • Cylinder speed (m/s):- 16.4 • Type of threshing drum:- Spike tooth • Type of blower:- Centrifugal
- 17. • No ofsieves:- 2 • Opening size of upper sieve (mm):-12 • Opening size of lower sieve (mm):- 2 • Concave clearance (mm):- 50 • Opening size of concave (mm):-5 x 5 • Moisture content of cobs (%):- 12-28 • Threshing Capacity(kg/h):- 450-650 • Power requirement(hp/kW) :- 35/26.25
- 20. The thresher isdivided into three main sections: a) The feed in unit. b) The cutting & threshing unit. c) The grain separation chamber. Overall Dimensions: L – 3.9m, W – 1.09 m, H -2-3.2m Gear Box: - Five Cylinders Threshing Drums :– 3
- 21. Threshing capacity: • Wheat– 18 to 25 quintals • Gram – 14 to 18 quintals • Barley – 25 to 30 quintals • maize -18 to 22 quintals • Soyabeen -15 to 20 quintals • Groundnut – 20 to 22 quintals • Corn – 8 to 10 quintals.
- 22. • Average threshingefficiency:-99.60%, • cleaning efficiency:-99.07 % • Grain damage:-0.25%, • Grain blown:-0.36%, • spilled grain:-0.30 % • Total loss :- 0.91%
- 28. Effect of grainmoisture and cylinder speed on threshing efficiency, cleaning efficiency and grain loss (a: Grain moisture 13.5 %, b: Grain moisture 16 %.)
- 29. Effect of grainmoisture and feed rate on threshing efficiency, cleaning efficiency and grain loss (a: Grain moisture 13.5%, b: Grain moisture 16 %.)