Cashew Processing Technology
Modern cashew processing technology means automated machines, optical colour sorting, sensor-based quality control and shell-fired energy — raising yield while cutting labour and fuel cost.
Cashew processing technology has moved from manual work to PLC-automated lines. The key technologies are automatic size grading, controlled steaming, multi-head automatic cutting, sensor-controlled borma drying, dry air-and-friction peeling, CCD optical colour sorting, and shell-fired or biomass energy that powers the plant from its own waste. Together they lift whole-kernel yield, cut labour per tonne and help meet export food-safety standards.
Core technologies
- PLC automation with automated material handling
- Optical colour sorting (CCD) for white-grade specs
- Sensor QC — moisture meters and metal detection
- Shell-fired energy — the plant powers itself from waste
These can be built into a new turnkey plant or retrofitted into an existing line via technology integration.
Automation and sorting protect the whole white kernels that carry the highest price, while shell energy removes most of the fuel bill.
The process, drawn
Where PLC control belongs
"PLC-controlled" is applied loosely across the industry. On a TTQ plant it means one specific thing.
- RCN cleaning Debris and stone removal
- Calibration Size grading
- Steaming Pressure and cycle
- Cooling & feeding Into the shelling line
- Shelling machine Blade depth set per size band
- Peeling machine Drum speed and air
- Borma dryer Digital temperature + moisture display
- Humidifier Regulated RH and dwell
Buying a PLC layer for an individual machine buys very little. The automation that changes headcount is the integrated line that prepares and feeds the nuts.
What actually uses compressed air
Over-specifying the air system is a common and expensive mistake, because the shelling stage is widely assumed to need air. It does not.
Match the compressor to peeling head count: 30 HP for one head, 50 for two, 75 for three, 100 HP for four. Colour sorters can be plugged into the plant system instead of running their own compressor, but they do not have to be.
Frequently asked questions
What technology is used in cashew processing?
Can I add modern technology to an old plant?
Related reading & machines
Talk to a cashew engineer
Tell us your target capacity, grades and location — we’ll come back with a costed proposal.