Case

The core demands of the food industry are “safety, efficiency, and cleanliness”. From raw material processing to finished product packaging, every link imposes strict requirements on the hygiene standards and operational stability of production equipment. As a mature equipment with years of experience in the fan field, Longtie Roots Blower perfectly meets the production needs of the food industry with its core advantages of oil-free cleanliness, stable efficiency, and strong adaptability. It has become an “invisible guardian” in the entire food processing process, providing reliable pneumatic solutions for various food production enterprises and helping them achieve standardized and efficient production.

As a professional fan manufacturer, Longtie Blower (Shanghai) Co., Ltd. has strong technical strength, sophisticated processing equipment, and a complete quality control system. Its Roots blowers (also known as lobe blowers) absorb advanced German design experience and are improved in combination with the characteristics of China’s food industry. With the advantages of reasonable structure, high efficiency, low noise, and long service life, they are widely used in many key links of food processing. Tested by the market, they have won the recognition and trust of numerous food enterprises. It has successively provided one-stop services such as fans, selection, and installation for many large enterprises, with products covering the whole country.

Precise Adaptation to the Food Industry, Covering All Scenarios of Processing Applications

Longtie Roots Blower adopts a positive displacement working principle. It drives the rotors to rotate in opposite directions at a constant speed through a pair of precision synchronous gears to realize forced gas delivery. The output gas is clean and oil-free with stable flow, which can accurately match the needs of the entire food processing process from raw material pretreatment to finished product packaging. The core application scenarios cover the following four fields:

1. Raw Material Processing: Building a Solid Line of Defense for Food Safety at the Source

The cleaning and drying of raw materials is the first pass of food safety. Longtie Roots Blower provides an efficient solution for raw material processing with its strong and clean air flow. In the fruit and vegetable processing link, through generating stable air turbulence and cooperating with cleaning water, it can quickly remove dust, soil, and pesticide residues on the surface of fruits and vegetables. Compared with traditional manual cleaning, it not only greatly improves cleaning efficiency but also ensures uniform and thorough cleaning, safeguarding raw material hygiene from the source. In the processing of powder raw materials such as flour and starch, the negative pressure environment generated by the fan can accelerate the dehydration and drying of raw materials, effectively reduce the moisture content of raw materials, prevent mold and caking, extend the storage period of raw materials, and avoid impurity pollution to ensure the purity of raw material quality.

2. Food Processing: Ensuring Efficient and Stable Production

In the core link of food processing, the stable performance of Longtie Roots Blower has become an important support for production continuity. In the production of fermented foods (such as yogurt, soy sauce, and beer), the fan continuously provides clean air for the fermentation tank, ensuring the activity of microorganisms, promoting the uniform and efficient fermentation process, avoiding fermentation failure caused by insufficient oxygen supply, and ensuring the stable and consistent flavor of products. In links such as puffed food and bread baking, the stable air flow output by the fan can accurately control the temperature and humidity of the processing environment, helping products form a uniform taste and appearance and improving product qualification rate. In addition, in powder material transportation, the anti-stick designed impeller of Longtie Roots Blower can effectively avoid blockage caused by electrostatic adsorption and caking of materials such as flour and powdered sugar. Its stable air volume output can ensure continuous and uninterrupted material transportation, greatly improving production efficiency and reducing manual cleaning costs.

3. Vacuum Packaging: Extending Food Shelf Life and Locking in Fresh Flavor

Vacuum packaging is a key link to extend food shelf life and lock in product freshness, which has extremely high requirements on the negative pressure stability and cleanliness of the fan. Longtie Roots Blower can quickly generate a stable negative pressure environment, efficiently extract oxygen from the packaging bag, inhibit the growth and reproduction of microorganisms, prevent food oxidation and deterioration, and avoid contact between pollutants such as oil stains and food, ensuring the safety of packaged food. Whether it is meat, cooked food, nuts, or vacuum-dehydrated food, Longtie Roots Blower can adapt to packaging production lines of different specifications to achieve rapid vacuum sealing. It not only improves packaging efficiency but also maximizes the retention of the original flavor and nutritional value of food, helping enterprises enhance their product competitiveness.

4. Wastewater Treatment: Practicing the Concept of Green Production

A large amount of wastewater is generated in the food processing process. Improper treatment will cause environmental pollution and fail to meet industry environmental protection standards. Longtie Roots Blower can be applied to the aeration system of food wastewater treatment. By continuously delivering clean air, it promotes the growth and activity of microorganisms in the wastewater, accelerates the decomposition of organic pollutants, and realizes the up-to-standard discharge of wastewater. It helps food enterprises practice the concept of green production, balancing economic benefits and environmental protection responsibilities. At the same time, its energy-saving design can effectively reduce the energy consumption cost of the wastewater treatment link.

Core Technical Advantages, Meeting the Strict Standards of the Food Industry

The food industry has much higher requirements for the hygiene, safety, and stability of production equipment than the general industrial field. The reason why Longtie Roots Blower can become the first choice of food enterprises lies in its targeted technical optimization and quality control, which perfectly meets the strict industry standards:

1. Oil-Free and Clean Design, Eliminating Food Contamination

Longtie Roots Blower adopts an oil-free lubrication structure. No lubricating oil is needed in the fan cavity. A precise small gap is maintained between the impeller and the casing, front and rear end covers, ensuring that the output gas is free of oil and other pollutants. It meets the FDA 21 CFR 177.2600 standard of the food industry, fundamentally eliminating the risk of food contamination by oil stains, and is suitable for production links directly in contact with food to ensure food hygiene and safety. At the same time, the contact parts of the equipment can be made of 316L stainless steel, which is mirror-polished, with extremely low bacterial residue, easy to clean, and no hygiene dead corners. It can meet the CIP cleaning needs of the food industry and further improve production cleanliness.

2. Stable and Efficient Operation, Ensuring Production Continuity

Relying on the rotor manufactured by precision CNC processing technology and the precise transmission of synchronous gears, Longtie Roots Blower operates stably with an air volume fluctuation of ≤±2%. Under constant speed, the output air volume is basically not affected by the change of outlet pressure. It can operate continuously for a long time with a long trouble-free working time, effectively avoiding production interruption caused by equipment shutdown and improving production efficiency. Its energy-saving design can save 10% energy compared with traditional fans, and its service life is as long as 15 years, which greatly reduces the equipment operation and maintenance costs and energy consumption costs of enterprises, realizing cost reduction and efficiency improvement.

3. Low Noise and Low Vibration Design, Optimizing the Production Environment

Food processing workshops have strict restrictions on noise and vibration. Longtie Roots Blower adopts a three-lobe rotor design, which can effectively reduce pressure pulses. Compared with traditional two-lobe fans, the noise is reduced by 5dB, and the operating noise is controlled below 80dB (A), which meets the noise standard of food workshops and avoids noise affecting workers’ operation accuracy and hearing health. At the same time, the equipment is equipped with a double-layer shock absorption structure, with vibration ≤0.005g, which can avoid vibration affecting the accuracy of surrounding food processing equipment, further improve product qualification rate, and optimize the workshop production environment.

4. Customized Adaptation to Meet Diverse Needs

There are many sub-fields in the food industry, and different enterprises have great differences in production processes and production capacity requirements. Longtie Roots Blower has a complete range of specifications, with an air volume range of 0.5~360 m³/min and a pressure range of 0~8000mmAq. According to the specific production scenarios of food enterprises (such as powder transportation, fermentation oxygen supply, vacuum packaging, etc.), it can provide customized fan selection, installation, and commissioning services to adapt to the food production needs of different scales and processes. Whether it is a large food processing plant or a small and medium-sized food enterprise, a suitable solution can be found. At the same time, the equipment has a simple structure and convenient maintenance, which can reduce the difficulty of later operation and maintenance for enterprises.

Empowering the High-Quality Development of the Food Industry and Showing Brand Strength

The high-quality development of the food industry is inseparable from the support of high-quality production equipment. Longtie Roots Blower has always taken “safety, cleanliness, efficiency, and energy saving” as the core, deeply cultivated the application scenarios of the food industry, continuously optimized product technology, and improved the after-sales service system. It has established sales and after-sales service networks in more than 30 provinces, municipalities directly under the Central Government, and regions across the country, providing timely technical consultation, equipment maintenance, and other services for food enterprises, solving various problems in the production process of enterprises, and helping enterprises improve production efficiency, ensure product safety, and reduce production costs[1].

From raw material cleaning to finished product packaging, from wastewater treatment to green production, Longtie Roots Blower, with professional technology and reliable quality, runs through the entire food processing process and becomes an important support for food enterprises to achieve standardized and large-scale production. In the future, Longtie will continue to base itself on the needs of the food industry, continuously innovate technology, optimize product performance, provide more pneumatic solutions that are more in line with the development of the food industry, and work with food enterprises to safeguard food safety and build a new future for the high-quality development of the industry.