Hazelnut Opening Line for Efficient Hazelnut Processing
Hazelnut Processing Production Line | Hazelnut Slitting Production Equipment
Processing capacity: 350-600 kg/hour
Total power:13.1-18 kW
Steam evaporation: 70-110 kg/hour
Natural gas consumption: 5/7 cubic meters/hour
LPG consumption: 3.5/5 kg/hour
The hazelnut opening line is used to make a small opening in the surface of a whole hazelnut without damaging the kernel. Shelled hazelnuts are easier to roast, season, and package, which makes this processing method widely used in the food industry.
The capacity of hazelnut shelling production lines can be adjusted according to different configurations, ranging from 250 kg/hour to 600 kg/hour, to meet the needs of small and medium-sized hazelnut processing plants.
Advantages of using a hazelnut shelling production line
- This hazelnut processing line combines steam heating and mechanical extrusion technology, ensuring a higher shelling success rate while protecting the hazelnut kernels.
- The whole line uses an integrated conveyor system, enabling continuous feeding and discharging, effectively reducing labour costs.
- It is a fully automated production line that can be easily connected to hazelnut dryers, roasting machines, etc., to form a complete hazelnut processing production line.
- The entire hazelnut opening line is made of 201 stainless steel, and the extrusion disc and side plates are made of 2Cr13 stainless steel. Customisation is also available to meet other requirements.
Basic equipment of a hazelnut opening line
A standard hazelnut shelling production line mainly consists of three core pieces of equipment.
Feed elevator
It is responsible for conveying soaked hazelnuts into the machine’s hopper, ensuring a stable flow of hazelnuts into the sheller while controlling the feeding speed to prevent machine blockage caused by uneven feeding.
Hazelnut opening machine
This is the core equipment of the entire production line, containing multiple processing channels and utilising steam-assisted shelling technology to open the hazelnuts.
Discharge conveyor
After shelling, the hazelnuts automatically fall onto the discharge conveyor belt. The conveyor belt transports the processed hazelnuts to the next processing stage.
Other optional equipment for hazelnut shelling production lines
To improve processing efficiency and shelling quality, Taizy also offers additional equipment that can be integrated into the hazelnut opening line:
Hazelnut soaking tank
Hazelnut shells have a porous, wood-like structure. Soaking allows water to penetrate the shell, making it easier to open without damaging the kernel.
We offer customised soaking tank systems for this process, which can be integrated into industrial-grade automated production lines for large-batch hazelnut processing.
Nut roasting machine
After shelling, hazelnuts need to be roasted after air-drying to maintain their crisp texture, an essential step in snack processing.
Taizy’s continuous roasting machine can be integrated into the entire hazelnut opening line and is suitable for roasting nuts, drying grains, and other food products.
Working principles of the hazelnut processing production line
Hazelnut shells are primarily composed of lignocellulose. Due to this porous structure, hazelnut shells can absorb moisture and react to temperature changes.
Therefore, before entering the shelling machine, hazelnuts should be soaked in warm water at approximately 50 °C for about 30 minutes for optimal results. Soaking makes the hazelnut shells more elastic and reduces their brittleness, allowing them to be opened without cracking.
During processing, the steam generator of the hazelnut shelling machine effectively transfers heat to the surface of the hazelnut shells, softening the lignin and hemicellulose components inside. Therefore, the hazelnut shells are easier to deform, preparing them for subsequent opening.
The hazelnut opener applies mechanical pressure to the hazelnuts as they pass through the extrusion plate. Because the hazelnut shells have been softened by steam, the pressure creates localised stress concentrations, resulting in controlled crack lines on the shells and a more aesthetically pleasing product.
Simultaneously, the steam intensity must be strictly controlled when using this production line to maintain a balance between shell softening and kernel protection.
- Excessive steam: The shell may become too soft, and heat may transfer to the kernel, potentially damaging it.
- Insufficient steam: The shell remains brittle, cracks will become irregular, and the damage rate will increase.
However, during the installation of this hazelnut opening line, our technicians will provide ongoing technical support and a comprehensive user manual to help customers use the machine more effectively.
Hazelnut shelling production line technical parameters
We offer three basic solutions for different production capacity requirements, with the following parameters:
Two sets with 10 channels
| Processing capacity | 250–300 kg/hour |
| กำลังไฟรวม | 13.1 kW |
| Steam evaporation | 70–90 kg/hour |
| Natural gas consumption | 5 cubic meters/hour |
| LPG consumption | 3.5 kg/hour |
Three sets
| Processing capacity | 350–450 kg/hour |
| กำลังไฟรวม | 16 kW |
| Steam evaporation | 80–110 kg/hour |
| Natural gas consumption | 7 cubic meters/hour |
| LPG consumption | 5 kg/hour |
Four sets with 20 channels
| Processing capacity | 500–600 kg/hour |
| กำลังไฟรวม | 18 kW |
| Steam evaporation | 80–110 kg/hour |
| Natural gas consumption | 7 cubic meters/hour |
| LPG consumption | 5 kg/hour |
Furthermore, our main frame of this hazelnut opening line is made of 201 stainless steel, and the machined parts and side plates are made of carbon steel. Bearings and fasteners are industry-standard components.
Equipment dimensions are as follows:
- Length: 11 meters
- Width: 1.2 meters
- Height: 2 meters
Processing capacity per channel is approximately 0.5 kg/min, and the output per unit is approximately 150 kg/h(based on two groups of 10 channels). If you feel these options do not meet your needs, you can contact us and provide your accurate information, and we will design the most suitable solution for you.
Successful cases of the hazelnut shelling production line customer
Customers from Uzbekistan visit the factory and order a hazelnut opening production line
A hazelnut processing company from Uzbekistan visited our factory to inspect our hazelnut shelling production line. After testing the machine, the customer expressed satisfaction with the shelling rate and low kernel breakage rate, and ordered one production line.
After using it for a period of time, they provided us with feedback and photos of their processed hazelnut products, expressing their positive feedback on the product’s performance.
One Indonesian customer sends samples to test customized hazelnut opening line
An Indonesian customer sent hazelnut samples to our factory for testing. During the test, the hazelnuts were soaked and then processed through the shelling production line.
The whole line operated stably, producing hazelnuts with uniform openings. The customer was impressed with the steam-assisted shelling technology and confirmed their order after trial use.
If you want to produce nuts but are struggling to find suitable production solutions and machinery, please contact us for more customisation information.
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