Growth by innovation — since 1989
Aarathi Engineers designs and builds custom industrial equipment out of Chennai — and pioneered Zero Residue Green Torrefaction, converting municipal solid waste into charcoal with zero landfill and zero mass incineration, operating in India since 2016.
About us
Vision
To be a leading advanced-equipment manufacturer, competing globally on the latest technology.
Mission
To meet customer requirements with innovative designs, keeping clients ahead on technology and economics.
First to design and install an MSW-to-fuel line in India, Chennai, 2016.
7 lines installed, operating for 4+ years. 9 lines currently under construction.
Consistently the fastest to install and bring a line into operation.
3rd-generation engineering designer, 2nd-generation entrepreneur. Leading Aarathi's expansion into biocoal and green coal manufacturing, with a vision to take the technology global.
Our products
Beyond torrefaction, Aarathi designs and manufactures custom equipment across nine categories — from solid waste lines to pre-engineered buildings.
What we do
The status quo is broken
The process
Torrefaction is a thermochemical treatment of feedstock at 250–300°C, carried out in a controlled oxygen environment. Moisture and volatiles are released; what remains is a solid with high carbon content — hydrophobic, and with a high gross calorific value.
For technical diligence
Vented moisture and volatile gas are process off-takes, not landfilled residue — the process is designed for zero solid residue to landfill.
Byproducts & markets
Environmental impact
Environmental and carbon-credit figures are illustrative, programme-level estimates based on operating data, not guaranteed contractual returns.
Head to head
| WTE | Charcoal | |
|---|---|---|
| Capacity | 700 tpd | 700 tpd |
| Land area | 20 acres | 4 acres |
| Environmental clearance | Required | Not required |
| Power purchase agreement | Required | Not required |
| Construction period | 48 months | 6 months |
| Residue after process | Sanitary landfill required | Zero residue process |
| Preprocessing of MSW | Required | Not required |
| Plant availability factor | < 80% | 90% |
Proof of execution
Under construction
Dedicated by the Hon'ble Prime Minister of India in February 2024. Municipal solid waste to charcoal facility under agreement with Varanasi Municipal Corporation, at Ramna, Uttar Pradesh.
In the media
Get in touch
Whether it's a torrefaction line, a custom processing plant, or a special purpose machine — talk to our engineering team directly.
2, Third Cross Street, I Main Road,
G.K. Industrial Estate, Porur,
Chennai – 600116, India