Specialised combustion for cashew-shell fuel.
Cashew shells are an awkward waste stream — produced in volume, hard to dispose of, and difficult to burn cleanly in general-purpose equipment. They are also excellent fuel. Our burner is engineered specifically around that combination.
200–900kkcalBurn the oil, don’t chase the smoke.
Cashew nut shell liquid (CNSL) makes the shell energy-dense but also causes it to burn hot, fast and smokily in an uncontrolled fire, with heavy tar deposition on cooler surfaces.
The pyrolysis approach addresses this directly: gasifying the shell in an oxygen-limited chamber and burning the resulting gas gives complete combustion of the oil fraction rather than driving it off as smoke and tar. This is why a general-purpose solid-fuel burner will disappoint on cashew shell and a purpose-designed one will not.
Technical specifications
| Capacity | 200,000 to 900,000 kcal, specified to load |
| Main motor | 3 HP, Crompton Greaves, VFD-controlled |
| Main blower | 0.5 HP |
| Sub-blower & throw fan | Supplementary combustion-air distribution |
| Feed screw | 1 HP premium drive, VFD-controlled |
| Furnace construction | Fire cement rated to 2000 °C |
| Grill | Special steel; stainless option available as a spare |
| Control | Delta PLC & HMI on a common panel |
| Warranty | 12 months from date of shipment |
Key components
- Vibro feeder & hopper — Apex Industries VIB-72DA vibrator, delivering shells at a consistent metered rate.
- Wide screw conveyor — transports shells into the burning chamber without bridging or jamming.
- Air-cooled combustion chamber — manages the high flame temperatures characteristic of oil-bearing shell.
- Ash collection — bottom chamber with removal access.
- Air heat exchanger — indirect transfer to process air, so combustion products never contact your product.
Regional & commercial impact
- Disposal problem eliminated — the shell pile stops being a cost centre.
- Processing energy self-sufficiency — cashew processors can generate the majority of their own process heat from their own residue.
- Local fuel-market creation — where a drying operation sits near cashew processing, a shell supply chain becomes commercially viable for both parties.
- Operating-cost reduction — substantial displacement of purchased fuel.
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We size against calculated heat demand — not headline capacity. Tell us your load and we’ll specify the right unit.
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