Oil Seeds Pretreatment: Groundnut Shelling Machine

Short Description:

Oil-bearing materials with shells such as groundnuts, sunflower seeds, cotton seed, and teaseeds, should be conveyed to the seed dehuller to be shelled and separated from their outer husk prior to the oil extraction process, the shells and kernels should be pressed separately. Hulls will reduce the total oil yield by absorbing or retaining oil in the pressed oil cakes. What’s more, wax and color compounds present in the hulls end up in the extracted oil, which are not desirable in edible oils and need to be removed during the refining process. Dehulling can also be called shelling or decorticating. The dehulling process is necessary and has got a series advantages, it increases oil production efficiency, capacity of the extraction equipment and reduces wear in the expeller, reduces fiber and increases protein content of the meal.

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The main oil seeds shelling equipment

1. Hammer shelling machine (peanut peel).
2. Roll-type shelling machine (castor bean peeling).
3. Disk shelling machine (cottonseed).
4. Knife board shelling machine (cottonseed shelling) (Cottonseed and soybean, peanut broken).
5. Centrifugal shelling machine (sunflower seeds, tung oil seed, camellia seed, walnut and other shelling).

Groundnut Shelling Machine

Peanut or groundnut is one of the important oil crops in the world, groundnut kernel is often used to make cooking oil. Peanut huller is used to shell peanuts, it can shell peanut completely, separate shells and kernels with high-efficiency and almost without damage to the kernel. The shelling rate can be ≥95%, the breaking rate is≤5%. While peanut kernels are used for food or the raw material for oil mill, the shell could be used to make wood pellets or charcoal briquettes for fuel.

FOTMA groundnut shelling machine is produced according to the national standards strictly. It consists of rasp bar, stake, intaglio, fan, gravity separator and second bucket, etc. The whole groundnut shelling machine frame is made of high-quality steel and the shelling chamber is made of stainless steel. Our groundnut shelling machine has compact structure, easy operation, high efficiency, low energy consumption and reliable performance. We export peanut shelling machine or groundnut huller on cheap price.

How does the groundnut shelling machine work?

After starting, the shells of peanuts are shelled by the rolling force between the rotating rasp bar and the fixed intaglio, and then shells and kernels fall through the grid mesh down to the air duct, and the fan blows shells out. The kernels and the unshelled small peanuts fall into the gravity separator. The separated kernels are sent upward to the outlet and the separated unshelled small peanuts are sent downwards to the elevator, and the elevator sends the unshelled peanut to the fine grid mesh to be shelled again until the whole batch of peanuts are all shelled.

Groundnut Shelling Machine Techinal Data

6BK Series Peanut Huller
Model	6BK-400B	6BK-800C	6BK-1500C	6BK-3000C
Capacity(kg/hr)	400	800	1500	3000
Power(kw)	2.2	4	5.5-7.5	11
Shelling rate	≥95%	≥95%	≥95%	≥95%
Breaking rate	≤5%	≤5%	≤5%	≤5%
Losing rate	≤0.5%	≤0.5%	≤0.5%	≤0.5%
Cleaning rate	≥95.5%	≥95.5%	≥95.5%	≥95.5%
Weigh t(kg)	137	385	775	960
Overal dimensions (L×W×H) (mm)	1200×660×1240mm	1520×1060×1660mm	1960×1250×2170mm	2150×1560×2250mm

6BH Peanut Shelling Machine
Model	6BH-1600	6BH-3500	6BH-4000	6BH-4500A	6BH-4500B
Capacity(kg/h)	1600	3500	4000	4500	4500
Shelling rate	≥98％	≥98％	≥98％	≥98％	≥98％
Broken rate	≤3.5％	≤3.8％	≤3％	≤3.8％	≤3％
Loss rate	≤0.5％	≤0.5％	≤0.5％	≤0.5％	≤0.5％
Damage rate	≤2.8％	≤3％	≤2.8％	≤3％	≤2.8％
Impurity rate	≤2％	≤2％	≤2％	≤2％	≤2％
Matched power(kw)	5.5kw+4kw	7.5kw+7.5kw	11kw+11kw+4kw	7.5kw+7.5kw+3kw	7.5kw+7.5kw+3kw
Operators	2~3	2~4	2~4	2~4	2~3
Weight(kg)	760	1100	1510	1160	1510
Overal dimensions (L×W×H) (mm)	2530×1100×2790	3010×1360×2820	2990×1600×3290	3010×1360×2820	3130×1550×3420

6BHZF Series Peanut Sheller
Model	6BHZF-3500	6BHZF-4500	6BHZF-4500B	6BHZF-4500D	6BHZF-6000
Capacity(kg/h)	≥3500	≥4500	≥4500	≥4500	≥6000
Shelling rate	≥98％	≥98％	≥98％	≥98％	≥98％
The peanut-containing rate in kernels	≤0.6％	0.60%	≤0.6％	≤0.6％	≤0.6％
The trash-containing rate in kernels	≤0.4％	≤0.4％	≤0.4％	≤0.4％	≤0.4％
Breakage rate	≤4.0％	≤4.0％	≤3.0％	≤3.0％	≤3.0％
Damage rate	≤3.0％	≤3.0％	≤2.8％	≤2.8％	≤2.8％
Loss rate	≤0.7％	≤0.7％	≤0.5％	≤0.5％	≤0.5％
Matched power(kw)	7.5kw+7.5kw; 3kw+4kw	4kw +5.5kw; 7.5kw+3kw	4kw +5.5kw; 11kw+4kw+7.5kw	4kw +5.5kw; 11kw+4kw+11kw	5.5kw +5.5kw; 15kw+5.5kw+15kw
Operators	3~4	2~4	2~4	2~4	2~4
Weight(kg)	1529	1640	1990	2090	2760
Overal dimensions (L×W×H) (mm)	2850×4200×2820	3010×4350×2940	3200×5000×3430	3100×5050×3400	3750×4500×3530

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