A peanut shelling machine is equipment that is mainly used to remove peanut shells and get red peanut kernels. In addition, this machine can also remove the shells of sunflower seeds and other similar seeds, which can effectively separate the shells from the seeds. It is widely used in the peanut processing industry.
Taizy offers three models of peanut shelling machines: TZ-200, TZ-400, and TZ-800, with a capacity range of 200 kg/h to 800 kg/h. As long as your production demand is within this range, we can provide the most suitable machine for you.
Our peanut shelling machines have a shelling efficiency of over 98% and do not damage the peanuts, making them ideal for food factories and peanut seed processing plants.
The usage of groundnut sheller is increasing year by year
Peanut is one of the main oil crops in my country and one of the main foreign exchange-earning agricultural products. Peanuts can be eaten after simple processing and can be made into nutritious food and health care products after deep processing.
Peanut shells can be used for biomass power generation as fuel instead of coal, and can also be comprehensively used for deep processing to add value.
In recent years, with the adjustment of agricultural structure, the peanut planting area in my country has been expanding, and the peanut output has increased year by year.
When peanuts are used for oil extraction, deep processing, and export commodities, peanut pods need to be shelled, and the application of peanut shellers is increasing year by year.
The characteristics of the peanut shelling machine
- The fully automatic peanut shelling machine offers a shelling efficiency of over 98%, with a shell-breaking rate of less than 5%.
- It effectively separates seeds from shells with an extremely low damage rate.
- With a simple structure that relies only on pressure shelling, it is easy to operate and maintain.
- Available in 3 different models, it meets production needs ranging from 200–800 kg/h.
- Customization is also available according to customer requirements, including power voltage and plug type, caster wheels, and sieve mesh size.
- The peanut shelling machine is not only designed for efficient peanut shelling but can also be used for shelling sunflower seeds and similar crops.
- It can be equipped with either a gasoline engine or a diesel engine, making it suitable for different working environments.
The composition of the peanut shelling machine
Peanut sheller is mainly composed of a peanut inlet, a peanut shells outlet, a complete peanut kernels outlet, a bad or broken kernels outlet, a small peanut outlet, etc.
The operation steps of the peanut sheller
- First, pour the peanuts that need to be shelled into the hopper manually.
- Due to the force between the rotating file and the fixed grille, the nut and the shell are removed. And at the same time, the nut falls through a sieve into the air duct.
- The wind will blow out most of the peanut shells. Leaving some peanuts and peanut kernels that have not been completely peeled off to fall into the gravity separator.
- After the screening, transport the peanut kernels to the outlet through a separate sieve facing upward.
- Peanuts, which are still not peeled, are transported through the screen to the hoist, where they are transported to the first step of the peeling process.
- And so on until all the peanuts have been shelled. Correct use of peanut shellers can improve work efficiency.
Working principle of peanut shelling machine
The peanut shelling machine is composed of a frame, a fan, a rotor, a single-phase motor, a screen, a feeding hopper, a vibrating screen, a V-belt pulley, and its transmission tripod. The peanut shelling machine removes the shell of the peanut through high-speed rotation and then separates the peanut kernels through the structure of the screen.
Feeding hopper
Used to evenly feed peanuts into the machine, preventing blockages.
Rotor
Drives the shelling rollers to rotate, achieving shell removal through squeezing and friction.
Shelling rollers
Complete the dehulling process through relative friction; their material and spacing determine the breakage rate and efficiency.
Sieve
Separates materials based on mesh size, allowing peanut kernels to be separated from shells.
Fan
Generates airflow to blow away the lighter peanut shells, achieving kernel-shell separation.
Vibrating screen
Further screens and grades the peanut kernels to improve purity.
The applicable scope of peanut sheller
The peanut shelling machine is applicable to a wide range of small and medium-sized machines, suitable for processing manufacturers of different sizes.
At the same time, this machine can be a stand-alone operation. But can also be used in the peanut processing line, such as the peanut butter production line.
It can also be used in peanut planting farms for preliminary processing of peanuts, raw material processing by seed processors, raw material processing in oil extraction factories, and factory processing of peanut snacks and snacks.
Applicable materials
- Peanuts with shells (raw peanuts, dried peanuts)
- Seed peanuts
- Oil peanuts
- Some beans or nuts (requires customized sieve/ shelling rollers), such as fava beans, soybeans, peas, etc.
Peanut shelling cracking machine parameters
| Model | Production | Power | Size | Weight | Peeling rate |
| TZ-200 | 200kg/h | gasoline engine 170, motor/diesel engine 6 horsepower | 650*560*1000mm | 65KG | ≥98% |
| TZ-400 | 300-400kg/h | gasoline engine 170F, diesel engine 6-8 horsepower | 1200*700*1400mm | 130kg | ≥98% |
| TZ-800 | 600-800kg/h | gasoline engine 170F, diesel engine 8-10 horsepower | 1400*900*1600mm | 160KG | ≥98% |
The above are our standard models. If you want a customized machine, we can also tailor one to meet your specific requirements. You are welcome to contact us for consultation.
Factors affecting peanut shelling efficiency
1. Raw materials affect the efficiency of the peanut sheller. The hardness of the peanut shell can affect the working efficiency of the peanut sheller. The harder the peanut shell is, the slower the peanut sheller works. It can be adjusted by spraying water.
2. Preliminary screening of peanuts that need to be shelled. If a large peanut shelling machine is used, the peanuts that need to be shelled contain stones, weeds, etc., which will seriously affect the work efficiency of the equipment, so it is also important to initially screen and clean the materials.
3. The fineness requirement of peanut shelling is also the main factor affecting the working efficiency of the peanut shelling machine. In general, the finer the requirements for the peeled peanuts, the lower the working efficiency of the large peanut sheller.
The harm of stones to the peanut cracking machine
When the peanuts are harvested or when they peanuts are dried, a lot of stones may be mixed into the peanuts. If the stones are poured into the machine when the peanuts are shelled by the machine, the damage to the machine will be accelerated, and the peanut shelling efficiency will be reduced.
It is best to simply pick out the larger stones before processing the peanut sheller. If there are too many stones, use a screening machine to remove the stones.
- Damaged blades or rollers: Stones are much harder than peanuts and can scratch, deform, or even break the shelling machine’s blades or rollers, reducing equipment lifespan.
- Affect peanut quality: Stones may crush peanuts into fragments or powder, lowering the intact rate and product quality.
- Increase mechanical load: Hard objects hitting the rotor and bearings can suddenly increase load, causing motor overload or belt slippage.
- Safety hazards: Stones may be ejected at high speed, posing a risk of injury.
- Higher maintenance costs: Damaged parts need replacement, leading to long maintenance cycles and production losses during downtime.
