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  Digital Catalogue for Technology and Products Development

   Technology and Product Development

    Basic Information

Technology developed: Variable Speed Solar Based Bageshwari Wool Charkha (TP19766324036)
Category: Product (Hardware/Material/Software)
Details of Inventor(s):
Inventor Institution/Organization/Company Department Designation
Dr. R. P. Saini Indian Institute of Technology Roorkee Department of Hydro and Renewable Energy Professor
Technical Application Area: Engineering
If 'Other', please specify:
Please give more details of new technical application area:
The modified Bageshwari wool charkha has facilities to be operated by electricity, solar PV system with speed control mechanism and by foot paddle mechanism. For spinning coarse and fine quality yarn control mechanism has been provided and also a USB socket for battery backup. The charkha is light in weight and its components can be dismantled for easy transport in remote areas and assembled again at site. The modified advanced Bageshwari Wool Charkha version 2 comprises of solar panel, electric motor, battery with 4 volt rechargeable battery operated by the foot pedal. Further a knob control is provided to adjust for coarse and fine spinning of wool. This system has advantages of a USB socket, battery backup, lightweight structure and its components that can be easily be assembled and disassemble. Technical details of the Bageshwari Charkha are given as Battery-12 Volt 35 amps LED Charger-4 volt Operated through peddle fitted D.C. voltmeter-6 to 100 Volt Motor-220 V 50 Hz 110 watt RPM 7500 Switch and Socket-220 volt Inverter output Knob control-Coarse and Fine control Worm Gear box gear ratio-1 by 48 Solar Panel-75 watt Fly wheel Diameter-17 inch Thickness 18 mm Tool box-14.5 inch x 11.5 inch x 6 inch
Department of Hydro and Renewable Energy Indian Institute of Technology Roorkee Under RuTAG IIT Roor
Affiliated Ministry: Office of the Principal Scientific Adviser
Type of technology development: Indigenous
Does the technology help in replacing any import items currently
procured from outside India?
Does the technology have export potential? Yes
Category of Technology developed: Export Potential
Stage of Development: Commercialized
Please describe in detail including the TRL Level:
Traditional Bageshwari charkha was modified during the phase 1 in four stages to remove the problems raised by operators. After field trial and feedback received from the spinners, Bageshwari charkha was modified in phase 2. A variable speed solar based modified Bageshwari wool charkha is introduced with speed controller, solar PV, battery, inverter, compact gearbox, mobile charger, control mechanism. To test the performance of the modified Bageshwari charkha, a testing was organized for the artisans of Rajasthan under the direction of RuTAG coordinator. Based on the feedback from artisans and further request for field trial, one set of modified Bageshwari charkha has been sent for field trail for spinning yarn. Five sets of Charkha were fabricated for demonstration in the Uttarakhand and other states.


Applications: Wool spinning provides the main source of earning particularly for underprivileged public in a given area. Spinning of wool for weaving can boost local livelihoods as raw wool is easily available and local people are well versed with spinning and weaving. More than 60000 families are involved in hand spinning and weaving in Uttarakhand state and these are directly benefited.
Advantages: Introduced with 75 Watt of solar panel and motor with 110 Watt and speed can be raised upto 3000 rpm. Operated by solar PV system with speed control mechanism while foot operated mechanism is retained. Provided with USB charging port and emergency paddle light. Battery backup has been provided. Control panel for coarse and fine adjustment through which motor RPM can be set in range between 150 to 3000 RPM. Spinner can spin nearly 1.5 kg of wool yarn in a day more than 3 times of traditional charkha. With controlled rotation better quality of YARN production. Reduced labour and motivation to spinners for more production and earnings. The modified charkha operated electrically using single phase motor of 75 watt consumes only 0.6 unit of electricity in a day by working for 8 hours, which costs about Rs. 2 per day. The modified wool charkha would be beneficial to the spinner and for the cottage industry for the production of yarn with local fiber of Uttarakhand and Rajasthan. The charkha is ecofriendly as it does not require any fossil fuel and sort combustion.

    Technology Inputs:

Imported Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
Indigenous Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
Imported Raw Materials:
Raw Materials Year ITC-HS Code
Indigenous Raw Materials:
Raw Materials Year ITC-HS Code
Tibet Wool and Merino Wool 2015-16
Existing R&D Facilities used:
Facilities Year ITC-HS Code
Renewable Energy Laboratory 2017-18

    R&D Investment:

R&D investment (Rs. in Lakhs):                    
Indian Source (Rs.) Foreign Source (Rs.) Year
3 0 2017-18

   Patents & Publications:

Filed Patents (No.) Granted Patents (No.) Year
0 0 NA
Submitted (No.) Published (No.) Year
2 2 2018-19

    Commercialization Potential:

Who are the Potential Licensees? Iron Spin Wheel Niranjanpur Dehradun 248171 Uttarakhand India
What commercially available products address
the same problem?
Company Product Problem Addressed
Phoenix Products Medleri Charkha for Wool Spining The Charkha is manually operated and the production rate is low as compared to the Modified charkha
Would you like to develop this invention further with
corporate research support?
Would you be interested in participating in cluster based
programs for commercialization research or business
planning for your invention?
      Submitted by: RP Saini Date of Submission: 5-8-2020

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