Nov
grain destoner technical analysis and manufacturing specifications
With a capacity of 6–15 tons per hour and power of 13.2 kW, this gravity separator removes blighted, budding, damaged, injured, rotten, deteriorated, and moldy seeds from sesame and beans, including groundnuts, with high performance. It is supplied with SGS, CE, and SONCAP certification, offers a supply ability of 50 sets per month, and has a delivery period of 10–15 working days.
Gravity Separator Introduction
The gravity separator is a device that sorts granular materials based on differences in specific gravity between the material and its impurities. It efficiently removes blighted seeds, sprouted seeds, damaged seeds, injured seeds, rotten seeds, deteriorated seeds, moldy seeds, and non-viable seeds from legumes, grains, and seeds. It is widely used in the processing of grains, legumes, and seeds.
Machine Grain Flow Chart

During operation, the material is mainly subjected to two forces: airflow and vibratory friction. Under the influence of airflow, the material enters a suspended state. At the same time, vibratory friction causes stratification of the suspended material: lighter particles rise to the top, while heavier particles settle at the bottom. Finally, vibration of the specific gravity table drives the lighter impurities in the upper layer downward, while the heavier finished product in the lower layer moves upward, completing the separation of material from impurities.
What Can a Gravity Separator Do?
The gravity separator creates a proportional segregation effect under the combined action of aerodynamic airflow and vibratory friction of grainy material. It separates materials of the same size but different specific gravity, and removes immature and insect-damaged particles. Suitable for cleaning and processing plants handling sesame, soybeans, mung beans, kidney beans, chickpeas, coffee beans, and peanuts.
TECHNICAL SPECIFICATION

PRODUCT FEATURES
● The gravity separator consists of a gravity table, a wooden frame, seven wind boxes, a vibration motor, and a fan motor.
● The gravity separator uses high-quality bearings, beech components, and a stainless-steel table surface.
● It is equipped with an advanced frequency converter. It can adjust the vibration frequency to suit different types of materials.
Cleaning Result

PRODUCT ADVANTAGES
● More Precise Sorting: Multi-stage Specific Gravity Classification
● Anti-clogging screen design ensures smooth flow for small beans and stable sorting, resulting in low breakage and high purity.
● Flexible Adjustment: A Single Machine for Multiple Bean Varieties
Gravity Separator Structures
● It includes a low-speed, no-broken-slope elevator, a stainless-steel gravity table, a grain vibrating box, a frequency converter, brand motors, and Japan bearings.
● Low-speed, no-broken-slope elevator: Transfers grains, seeds, and beans to the gravity separator without breakage.
● Stainless-steel sieves: Used for food processing.
● Wooden frame of the gravity table: Supports long-term use and enables efficient vibration.
● Frequency converter: Adjusts the vibration frequency for suitable processing of different materials.
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