A castor seed sheller machine automatically removes the outer husk from dried castor pods, using a combination of mechanical force (rollers/drums with rubber coatings) and air separation (blower/fan) to efficiently separate the valuable kernel from the lighter shell, featuring a hopper for feeding, a shelling chamber, and screens for sorting, resulting in high efficiency, low kernel breakage, and labor savings compared to manual methods.
Key Components & How They Work:
Feeding Hopper: Where dried castor pods are manually loaded.
Shelling Unit: Often a conical double-drum with a rubber layer; pods roll and rub between the rotating drum and concave plate, separating shells from kernels through friction and impact.
Blower/Winnowing Chamber: A fan blows air to separate lighter shells from heavier seeds, discharging shells and sending seeds for further processing.
Shaking Mechanism/Sieve: Vibrating screens help sort the shelled seeds from remaining chaff and unshelled pods.
Motor & Power Transmission: An electric motor powers the shelling and blowing units via belts and pulleys.
Advantages:
High Efficiency: Significantly faster than manual shelling.
Low Breakage Rate: Rubberized parts protect the kernel, ensuring high recovery.
Labor Saving: Reduces manual effort by up to 88%.
Simple Operation: Easy to load and manage.
Process Flow:
Feed dried pods into the hopper.
Pods enter the shelling chamber, where rollers separate the husk.
Seeds and shells fall to the blower/sieve unit.
Air separates shells (blown out) from kernels (collected).
Unshelled seeds can be recycled for another pass.
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