Water, Waste Water and Organic Waste
Management Company

Organic Waste Composter (OWC)

Organic Waste Composter (OWC)

CAPACITY: 25 KG – 10000 KG per day


Semi Automatic


  • Available in Fully automatic as well as Semi-automatic function modules
  • PLC (Programmable Logic Controller) with sound & HMI (Human Machine Interface)
  • Sensor based control technology for pH, moisture and temperature,
  • Optional inbuilt shredder available to cut down the wastes into pieces
  • Processes almost every kind of food Waste like vegetables, egg, fish, crab, small bones, fruit & vegetable peels, meal leftovers into high quality of compost
  • Applicable for horticulture waste as well
  • 80%-90% Effective volume reduction of food waste & generation of Compost of High quality for gardening and farming
  • No foul smell, no pathogens, no rodents/insects/flies
  • Noise free
  • Low power consumption
  • Stainless steel body and tank, hence ensures longer life
  • Does not require any catalyst
  • Composts all types of organic matters
  • No pathogens, safe for human handling
  • Mechanical agitators for homogenization
  • An eco-friendly product
  • Compost is ready within 24 hours
  • Outer body of machine will be in SS-204
  • All inner parts & inner body of machine will be in SS-304
  • Machine will be fully automatic (PLC CONTROLLED WITH TOUCHSCREEN). SEMI-AUTOMATIC variants are also available depending on requirement.
  • SS-TROLLEY is also provided.
  • FOR SAFETY REASONS- machine will stop while the doors are open
  • AUTOCUT IN OVERLOAD-If any hard material get stuck in machine parts, it will stop without any harm.
  • Thermostat are also provided to maintain constant temperature inside machine. It reduces overall electricity consumption*.

Main difference between Fully & Semi-Automatic is of PLC

Our OWC Specification:

Input per day
Space Area 
(L X B X H) (in mm)
Price (INR)
1 Kelvin OWC 25 25 Kg 1 hp 2100 X 1600 X 1500 ENQUIRY
2 Kelvin OWC 50 50 Kg 2 hp 2600 X 1600 X 1500 ENQUIRY
3 Kelvin OWC 500 100 Kg 3 hp 3100 X 1900 X 1800 ENQUIRY
4 Kelvin OWC 200 200 Kg 4 h 3100 X 2200 X 2200 ENQUIRY
5 Kelvin OWC 300 300 Kg 4 hp 3300 X 2600 X 2600 ENQUIRY
6 Kelvin OWC 500 500 Kg 6 hp 3700 X 2700 X 2700 ENQUIRY
7 Kelvin OWC 750 750 Kg 6.5 13.2*5.3*6.8 ENQUIRY
8 Kelvin OWC 1000 1000 Kg 7.5 hp 6100 X 2700 X 2700 ENQUIRY
9 Kelvin OWC 1500 1500 Kg 13 hp 16.5*6.5*7.5 ENQUIRY
10 Kelvin OWC 2000 2000 Kg 20 hp 7500 X 3300 X 3300 ENQUIRY
11 For machine above 2000 kg contact us ENQUIRY

Types of composting and treatment of Organics

Open aerobic composting occurs under moist, oxygen rich (aerobic) conditions where complex organic molecules are broken down by microorganisms that release nutrients and energy contained in the waste. As the name itself suggests, open composting is carried out in open windows or open static piles where the controlled biological decomposition and pasteurisation of organic materials under aerobic conditions takes place. .

Enclosed composting uses the same process of aerobic decomposition of organic matter by bacteria and other microorganisms as done in open composting. It is also known as 'In-Vessel Composting' and while it is mostly undertaken on a small scale in local communities, but it can also operate on a large scale for municipal level where the waste produces many tonnes of cured compost per day depending on the system in use.

Vermicomposting is the process of breaking down the organic material that involves the joint action of earthworms and microorganisms and does not involve a high heating stage. As the agents of turning, fragmentation and aeration, the worms consume organic wastes such as food waste, animal wastes and sewage sludge to produce a soil conditioner. Vermicomposting is widely used at a small scale level like in backyard composting and in schools and offices. These technologies are however now being developed at a commercial scale for processing sewage sludge/biosolids and animal wastes.

Anaerobic digestion is the breaking down of organic materials either occurring naturally or under controlled conditions in the absence of oxygen. The carbon content of the material is released as methane or biogas rather than carbon dioxide. Anaerobic digestion converts organics into methane, carbon dioxide, hydrogen sulphide, other gases and water. A solid soil conditioner, a liquid soil conditioner which can be used as agricultural fertiliser and biogas, which may be used for energy generation are some by-products of anaerobic digestion process.

Pyrolysis is the process that involves thermal decomposition of organic material in a low or no oxygen environment. Pyrolysis generates three main products; char, oil and gas in varying ratios depending upon the types and quantity of the waste materials fed into the pyrolysis reactor and process conditions. Gasification is the process where steam is brought into use to react with most of the char, tar and volatile gas resulting from pyrolysis which are then converted into a more useful combustible gas, with or without air. The two terms are often used in tandem, since there are many Pyrolysis/Gasification technologies which apply the two processes in series.

Kelvin's Organic Waste Composter (Encourage Green Living)

Living a green life is a great way to improve upon a living style in order to make it healthy and conducive towards properly contributing to the environment. Living a green life is an active sign showing that a person is contributing to the environment and thus spreading awareness about an all-encompassing and important issue that affects everyone on earth. Using Kelvin’s Organic Waste Composters (OWC) machine is a step that encourages towards living a green life.
The organic wastes are composed of wastes of a biological origin such as paper and cardboard, food, garden waste, animal waste, biosolids and sludges.  Organic waste is usually generated as a component of most waste streams.  There are wo common misconceptions that needs to be understood in organic waste. Firstly, the term generally does not include plastics or rubber even though to an organic chemist, these polymers are certainly organic.  Secondly, putrescible wastes, such as food scraps, tend to biodegrade very rapidly whereas some other organic wastes, for instance paper, tend to require lengthy times or special conditions to biodegrade.


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