In the food industry, what should be paid attention to when choosing metal mesh belts? Material, specifications, surface
In the food industry, what should be paid attention to when choosing metal mesh belts? Material, specifications, surface treatment...
Details
When choosing metal mesh belt materials in the food processing industry, many factors need to be considered comprehensively. The following are some specific selection points:
1. Stainless steel material
SUS304: It has good corrosion resistance and high temperature resistance. It can withstand corrosive substances in most food processing environments, such as grease, acid, alkali, etc. It is also suitable for high-temperature baking, steaming and other processes. It is one of the most commonly used mesh belt materials in the food processing industry.
SUS316L: On the basis of SUS304, more nickel and molybdenum elements are added to make it more corrosion-resistant, especially in an environment containing chloride ions. It has better resistance to pitting and crevice corrosion, and is suitable for food processing scenarios with higher requirements for corrosion resistance, such as marine product processing, dairy product processing, etc.
Carbon steel material: high strength, strong bearing capacity, can withstand heavier food weight and greater impact force, but poor corrosion resistance and high temperature resistance, generally suitable for food processing links that do not require high corrosion resistance and high temperature resistance, and is more commonly used in biscuit baking.
Teflon material: has excellent high temperature resistance and non-stick properties, can be used for a long time at a high temperature of 260°C, food will not adhere to the mesh belt during transportation, easy to clean and maintain, can effectively improve production efficiency and food quality, and is often used for food baking, frying, etc.
2. When choosing a metal mesh belt in the food processing industry, in addition to the material, you also need to pay attention to the following aspects
Clear use requirements and scenarios
To understand the specific process of food processing, such as high temperature baking, low temperature freezing, frying, washing, etc., different processes have different requirements for the high temperature resistance, low temperature resistance, oil resistance, corrosion resistance and other properties of the mesh belt.
For example, bread cooling can use an SR spiral tower mesh belt without a mesh surface, while nuts frying requires a small mesh eyeglass mesh belt.
Mesh belt structure
Common food processing mesh belt structures include chain mesh belt, herringbone mesh belt, spiral tower mesh belt, sidewall mesh belt, etc. Chain mesh belt is suitable for conveying medium-loaded items, spiral mesh belt can be used in quick-freezing equipment and other occasions that require turning, and sidewall mesh belt can prevent materials from slipping.
Mesh belt specifications
The mesh size should be selected according to factors such as the size of the conveyed items and ventilation requirements to prevent food from falling or affecting the processing effect.
The mesh belt width should be determined according to the width and conveying volume of the conveyed items. It is necessary to ensure that the mesh belt can meet the material conveying requirements and match the size of the conveying equipment.
The thickness of the wire diameter affects the strength and load-bearing capacity of the mesh belt. Mesh belts with thicker wire diameters should be selected in places with high load-bearing requirements.
Surface treatment
Metal mesh belts are generally degreased before leaving the factory, and pickled if necessary to achieve the expected conveying effect and hygiene requirements.
Surface smoothness is also important. Choose a smooth and burr-free mesh belt to avoid scratching food or causing accumulation of food residues.
Cleaning and maintenance
Since food production has high hygiene requirements, the mesh belt needs to be easy to clean and can effectively prevent the accumulation of food residues and avoid cross contamination.
Consider the maintenance convenience of the mesh belt, which is convenient for regular inspection, replacement and maintenance to ensure its long-term stable operation.
Cost and benefit
Consider the price, service life, maintenance cost and other factors of the mesh belt, and choose a product with high cost performance. At the same time, pay attention to its impact on production efficiency and product quality. In the long run, high-performance mesh belts may be more economical.
