Alvan Blanch Crop Thresher
The Alvan Blanch Thresher is a portable thresher designed to process various grains.
The Alvan Blanch Midget Thresher is a portable thresher designed to process various grains and is adaptable for rice processing. The threshers contain grain collection boxes, plasticized canvass tarpaulin, and a tool kit for operation. The product was designed and is manufactured and distributed by Alvan Blanch.
This product is distributed in Africa, Europe, and the United Kingdom, with global distributions in the APAC Region, Asia, Middle East & North Africa, North America, Russia, South America & the Caribbean.
This product has been implemented through a network of approved dealers in over 100 countries.
~2,152.32 USD (1815 EUR)Converted on August 2020
This product is mass-produced in the United Kingdom.
Users can obtain the product/service from Alvan Blanch’s global list of approved dealers.
The exact number is unknown, but as of 2021, there have been Alvan Blanch projects completed in over 100 countries worldwide.
List of crops that this technology threshes
Quantity of produce the product threshes, measured in kilograms per hour
Is the harvester manually operated or is it motorized?
Energy required to power the product, measured in watts
Is the product moveable?
The Alvan Blanch Midget Crop Thresher is a portable thresher designed with heavy gauge welded steel with lifetime sealed bearings and anti-corrosion paint, and a bolted tubular square support frame with feet. The product has dimensions: 1420 x 580 x 1900 mm with a total weight is 190 kg. The machine has a 317 mm Peg drum with an adjustable concave, a feed table, and a side discharge spout. The drive is a PTO shaft from Power Tiller, including an attachment for speed conversion to 540 rpm.
Cleaning is done through manual rotation and raking. The crop is fed directly into the drum from the table, and the separated grain falls through concave via the collection chute. The remaining grain, recovered as straw, is discharged from the drum onto fixed sloping sieve for secondary cleaning by manual raking.
Technical support is provided by the Alvan Blanch or its network of approved dealers.
Designer specified performance targets include maximum reliability, functionality, and operator safety.
Testing performed by scientists from the Indian Agricultural Research Institute (IARI) and Kansas State University found that the machine worked satisfactorily for paddy and sorghum threshing but was not suitable for millets, groundnut, and maize.
Potential hazards related to the operation of this product include sharp and fast cutting tools.
The manufacturer also sells a mobile thresher model, the Alvan Blanch Aspra.
Singhal, O.P., Thierstein, G.E., 1987, “Development of an axial-flow thresher with multi-crop potential,” Agricultural Mechanization in Asia, Africa, and Latin America, 18(3), pp. 57-65.
The product is evaluated for multicrop potential and efficiency, and is certified by third-party laboratories.
This video developed by Alvan Blanch illustrates the operation and features of a similar mobile thresher model, Aspra.
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