
Food Grade PP Wire-Wound Filter Cartridge for Clarifying Fruit Juice, Beverage, and Syrup
Product Introduction
This food grade PP wire-wound filter cartridge is a professional liquid clarification and filtration component engineered exclusively for the food and beverage industry, targeting the clarification needs of fruit juice, beverage, and syrup products. Crafted from food-grade food contact-compliant polypropylene (PP) raw materials that meet international food safety standards (such as FDA, EU 10/2011), the cartridge is manufactured via advanced food-grade precision spiral winding technology, with a porous food-grade PP inner core and a uniformly wound PP wire filter layer. It is dedicated to the efficient removal of insoluble impurities such as fruit pulp particles, suspended solids, colloidal substances, and fiber debris from fruit juice (freshly squeezed, concentrated), carbonated/non-carbonated beverages, and various syrups (sugar syrup, fruit syrup, beverage base syrup) during the production and processing process. The product achieves high-efficiency liquid clarification without introducing any harmful substances, secondary pollution, or affecting the original taste, color, and nutritional components of food and beverage products. With excellent chemical stability, safe material properties, and stable filtration performance, it is a core food-safe filtration component for food and beverage processing enterprises, adapting to the continuous production needs of industrial-scale clarification lines, and complying with the strict food safety and quality control requirements of the food and beverage industry.
Filtration Precision
Calibrated specifically for the clarification characteristics of fruit juice, beverage, and syrup and the different impurity particle sizes in such products, the filtration precision of this food grade PP wire-wound filter cartridge covers a customizable food industry standard range of 1 μm to 50 μm, with the most commonly used and practical specifications for food and beverage clarification being 1 μm, 5 μm, 10 μm, 20 μm and 30 μm. The high-precision specifications (1 μm, 5 μm) are suitable for the fine clarification of clear fruit juice (apple juice, orange juice), transparent beverages (mineral water, fruit-flavored drinks), and high-purity syrup, effectively intercepting micro colloidal impurities and fine pulp particles that affect the transparency and sensory quality of products; the medium-precision specifications (10 μm, 20 μm, 30 μm) are applicable to the rough and fine clarification of cloudy fruit juice, fruit puree beverage, and ordinary syrup, removing large pulp particles, fiber debris and visible suspended solids to improve the product’s clarity and prevent sedimentation during storage. All precision grades adopt food-grade gap-setting winding technology, with uniform filtration gaps, stable interception efficiency, and no precision attenuation during continuous industrial production, meeting the differentiated clarification needs of various fruit juice, beverage, and syrup products, as well as different process links (pre-clarification, fine clarification, finished product filtration) in food and beverage processing.
Flux
The flux performance of this food grade PP wire-wound filter cartridge is fully optimized for the physical properties of fruit juice, beverage, and syrup (such as viscosity, solid content) and the industrial-scale continuous clarification production needs of the food and beverage industry. Under the standard food processing operating condition of 25℃ and 0.2MPa inlet pressure, the initial pure water flux is 10-30 L/min per 10 inches of cartridge length; for actual food and beverage liquids with different viscosities, the stable operating flux is adaptively adjusted: for low-viscosity liquids (clear fruit juice, mineral water, carbonated beverages, viscosity 1.0-1.5 mPa·s), the stable flux is 8-25 L/min per 10 inches; for medium-viscosity liquids (cloudy fruit juice, fruit syrup, viscosity 2.0-5.0 mPa·s), the stable flux is 5-15 L/min per 10 inches. The flux attenuation rate of the cartridge is strictly controlled during continuous filtration, and the flux remains stable in the middle and early stages of use. Even with the gradual accumulation of impurities, there is no sudden drop in flux, avoiding the reduction of the overall production efficiency of the food and beverage clarification line caused by excessive flux attenuation, and ensuring the continuous and stable operation of industrial-scale fruit juice, beverage, and syrup processing production lines. In addition, the flux design fully considers the parallel use characteristics of filter cartridges in large-flow clarification systems, and multiple cartridges can be used in parallel without mutual interference, ensuring the total flow of the production line meets the industrial production demand.
Salt Rejection Rate
As a food-grade physical clarification filtration component based on the pore size interception principle, this PP wire-wound filter cartridge is designed to remove insoluble solid impurities in fruit juice, beverage, and syrup, and does not have the functional design of desalination, ion removal, or separation of dissolved substances (such as sugar, mineral ions, organic acids). Therefore, its salt rejection rate is 0% under all normal food processing operating conditions. It only intercepts pulp particles, suspended solids, colloids, fiber debris and other insoluble contaminants in the liquid during the clarification process, and will not retain the soluble nutritional components (vitamins, mineral ions), flavor substances (fruit essences, organic acids), and functional components (sugar, sweeteners) required for fruit juice, beverage, and syrup products. This characteristic is crucial for the food and beverage industry: it ensures that the original taste, nutritional composition, soluble solid content, and physical and chemical indicators of the product remain unchanged after filtration, complying with the strict product quality standards of food and beverage processing, and avoiding the loss of effective soluble components that affect the product’s flavor and nutritional value. At the same time, the 0% salt rejection rate makes the cartridge not affected by the soluble solid content and ion type of the liquid, and can be universally applied to the clarification of various fruit juice, beverage, and syrup products with different sugar contents and mineral compositions.
Pressure Drop
The pressure drop design of this food grade PP wire-wound filter cartridge is fully optimized for the rated working pressure of food and beverage industrial clarification systems and the low-energy production requirements of the food industry, to ensure safe, stable and low-consumption operation without bringing additional pressure load to the liquid delivery pump and pipeline equipment of the clarification line. Under the standard operating condition of 25℃ and initial operation state (no impurity accumulation), the initial pressure drop is strictly controlled within 0.01-0.04 MPa, which is far lower than the rated pressure loss of mainstream food and beverage clarification systems. This ultra-low initial pressure drop ensures that the delivery pump of the food and beverage processing line can operate at the rated pressure without increasing the working load, effectively reducing the energy consumption of the production line and avoiding the damage of pump components caused by excessive pressure, which is in line with the energy-saving and emission-reduction requirements of modern food processing enterprises. With the progress of continuous clarification filtration and the gradual accumulation of intercepted insoluble impurities in the filter layer, the pressure drop of the cartridge will increase steadily. The recommended maximum allowable pressure drop for food and beverage processing is 0.20 MPa, which is the critical pressure value for the food and beverage clarification system to maintain safe and stable operation and avoid liquid leakage or equipment damage. When the pressure drop reaches this value, the cartridge needs to be replaced in a timely manner, which not only ensures the clarification effect of fruit juice, beverage and syrup, but also prevents the production line from being shut down due to excessive system pressure and affecting the normal progress of food and beverage processing.
Molecular Weight Cutoff (MWCO)
Combined with the filtration precision range, food-grade safety design and actual clarification demand of fruit juice, beverage and syrup, the molecular weight cutoff (MWCO) of this filter cartridge is set at 50,000 – 500,000 Da, and the MWCO grade is precisely matched with the filtration precision one by one to realize targeted interception of macromolecular insoluble impurities in food and beverage liquids without intercepting small molecular weight soluble nutrients and flavor substances. The high-precision cartridge (1 μm, 5 μm) with MWCO of 50,000 – 200,000 Da can effectively intercept small molecular weight colloidal impurities, fine macromolecular pulp particles and protein aggregates in clear fruit juice, transparent beverages and high-purity syrup, ensuring the high transparency and stable quality of the finished product; the medium-precision cartridge (10 μm, 20 μm, 30 μm) with MWCO of 200,000 – 500,000 Da is suitable for the interception of large molecular weight insoluble impurities such as coarse pulp particles, fiber debris and fruit residue in cloudy fruit juice, fruit puree beverage and ordinary syrup. This graded MWCO design not only ensures the efficient removal of harmful insoluble impurities in fruit juice, beverage and syrup during industrial clarification, but also allows small molecular weight soluble components (sugar, vitamins, organic acids, fruit essences) to pass through the filter layer smoothly, maximizing the retention of the original nutritional value and flavor of the product. At the same time, the food-grade PP raw material and precision winding process ensure that the MWCO parameters remain stable without attenuation during the service cycle, ensuring the consistent and stable clarification effect of the food and beverage production line.
Membrane Thickness
Aiming at the food safety requirements of the food and beverage industry and the continuous industrial production characteristics of fruit juice, beverage and syrup clarification, the filter layer (wound food-grade PP wire layer) thickness of this food grade PP wire-wound filter cartridge is specially designed as 3-10 mm with graded specifications, and the total wall thickness of the cartridge (including food-grade porous PP inner core, filter layer and food-grade smooth outer protective layer) is 9-18 mm, all in line with the dimensional standard of food and beverage industry filter cartridges to ensure perfect installation compatibility with food-grade filter housings. The thin filter layer (3-5 mm) is matched with high-precision cartridges (1 μm, 5 μm) for the fine clarification of clear fruit juice, transparent beverages and high-purity syrup, which ensures high filtration precision and excellent liquid permeability under normal operating conditions, avoiding excessive flow resistance caused by overly thick filter layer and affecting the production efficiency of the fine clarification line; the thickened filter layer (6-10 mm) is applied to medium-precision cartridges (10 μm, 20 μm, 30 μm) for the clarification of cloudy fruit juice, fruit puree beverage and ordinary syrup, which provides a larger three-dimensional dirt-holding space, improves the interception capacity of insoluble impurities during continuous industrial filtration, and extends the service cycle of the cartridge. The food-grade porous PP inner core with optimized thickness (3-5 mm) has high compressive strength and uniform water permeability, which provides a stable and non-deformable supporting structure for the outer filter layer under the working pressure of food and beverage clarification systems, avoiding the deformation or collapse of the inner core and ensuring the overall structural stability of the cartridge. The food-grade smooth outer protective layer (0.5-1 mm) is made of food-grade PP material with a smooth surface, which effectively prevents the filter layer from being damaged by liquid scouring during continuous circulation, and avoids the shedding of PP wire particles to ensure food safety, while also facilitating the pre-cleaning of the cartridge before use.
Replacement Cycle

The replacement cycle of this food grade PP wire-wound filter cartridge is determined according to the type of fruit juice/beverage/syrup, liquid viscosity, solid content, and the continuous production load of the food and beverage processing line, with strict compliance with food safety norms and strong operability. Under the **conventional food processing working condition (25℃, continuous industrial production for 8-16 hours a day, liquid solid content <5%, matching the rated flow and precision of the clarification system)**, the **recommended replacement cycle is 1-3 months**: the high-precision cartridges (1 μm, 5 μm) for fine clarification of clear fruit juice, transparent beverages and high-purity syrup have a replacement cycle of 1-2 months due to high filtration precision and relatively fast impurity accumulation; the medium-precision cartridges (10 μm, 20 μm, 30 μm) for the clarification of cloudy fruit juice, fruit puree beverage and ordinary syrup have a longer replacement cycle of 2-3 months with larger dirt-holding space. If the food and beverage production line is in **24-hour continuous ultra-high load operation**, or the liquid has a high solid content (>5%) and high viscosity (syrup with viscosity >5 mPa·s), the replacement cycle of all specifications of cartridges will be shortened to 2-6 weeks—high solid content and high viscosity will accelerate the accumulation of impurities on the filter layer, and timely replacement can avoid the reduction of clarification effect and the risk of microbial breeding caused by long-term use of the cartridge, which is in strict compliance with the food safety and hygiene control requirements of the food and beverage industry. In addition, the replacement cycle needs to be adjusted according to the actual operating parameters of the clarification system: if the system pressure drop reaches the recommended maximum value of 0.20 MPa in advance, or the clarification effect is significantly reduced (the product has obvious turbidity, sedimentation or poor transparency), the cartridge should be replaced immediately regardless of the operating time, to ensure the consistent quality and food safety of fruit juice, beverage and syrup products.
Features
- Food-grade raw material compliance: The whole cartridge is made of food-grade food contact-compliant PP raw materials that meet FDA, EU 10/2011 and other international food safety standards, non-toxic, tasteless, no harmful substance dissolution or precipitation, no secondary pollution to fruit juice, beverage and syrup, and fully complies with the food safety and hygiene requirements of the food and beverage industry.
- Stable clarification filtration performance: Adopts advanced food-grade precision spiral winding technology with uniform filtration gaps and consistent pore size distribution, stable interception efficiency for insoluble impurities, no precision attenuation or channeling during continuous industrial production, ensuring the consistent clarity and sensory quality of food and beverage products.
- Nutrition and flavor retention: Based on physical pore size interception principle, it only removes insoluble impurities without intercepting soluble nutritional components (vitamins, mineral ions) and flavor substances (organic acids, fruit essences) in the liquid, maximizing the retention of the original taste, nutrition and color of fruit juice, beverage and syrup.
- Excellent chemical stability: The food-grade PP raw material has excellent acid and alkali resistance, corrosion resistance and oxidation resistance, and can adapt to the clarification filtration of various fruit juice, beverage and syrup with different pH values (3.0-8.0) and different components, without chemical reaction with the liquid and affecting the product quality.
- Graded design for diversification: Filtration precision, flux, filter layer thickness and MWCO are all designed in graded specifications, matching the differentiated clarification needs of various fruit juice, beverage and syrup products, as well as different process links (pre-clarification, fine clarification, finished product filtration) in food and beverage processing, with strong practicality.
- Easy installation and food-safe structure: Adopts the dimensional and interface standard of food and beverage industry filter cartridges (222, 226, flat mouth), perfectly compatible with all mainstream food-grade filter housings (PP, 304/316L stainless steel) on the market, no need for professional tools for installation and replacement, and the smooth outer surface design avoids microbial breeding and is easy to clean, in line with food hygiene norms.
- Large dirt-holding capacity: The three-dimensional porous filter layer structure formed by food-grade precision winding has a large specific surface area and abundant dirt-holding space, which can intercept a large amount of insoluble impurities during continuous industrial clarification, reduce the frequency of cartridge replacement, and improve the production efficiency of the food and beverage line.
- Environmentally friendly and recyclable: The whole cartridge is made of homogeneous food-grade PP material, which is easy to recycle and dispose of after use, in line with the green production and environmental protection requirements of modern food processing enterprises, and no harmful substances are generated during production and use.
- Cost-effective food filtration: Mature food-grade production process, stable product quality, long service cycle under conventional working conditions, reasonable price, and the comprehensive use cost is far lower than that of other food-grade filtration components with the same performance, significantly reducing the production cost of food and beverage processing enterprises.

Application Fields
This food grade PP wire-wound filter cartridge is a specialized food-safe clarification filtration component developed for the fruit juice, beverage and syrup processing industry, and its core application field covers the whole process of industrial production of various fruit juice, beverage and syrup products with strict food safety and clarification requirements, including but not limited to: the pre-clarification and fine clarification of fruit juice products (freshly squeezed fruit juice, concentrated fruit juice, clear fruit juice, cloudy fruit juice, fruit puree) such as apple juice, orange juice, grape juice, mango juice; the clarification filtration of beverage products (mineral water, purified water, fruit-flavored drinks, tea drinks, vegetable protein drinks, carbonated beverages) in the production and finished product links; the clarification and purification of syrup products (sucrose syrup, fructose syrup, fruit syrup, beverage base syrup, honey syrup) for food and beverage processing; the filtration of other food liquid raw materials (fruit puree, vegetable juice, edible oil raw liquid) in the food processing industry that need to remove insoluble impurities. In addition, it can also be widely used in the clarification filtration of other food-grade liquids in the food industry such as dairy product pre-filtration (milk, yogurt base liquid), condiment liquid (soy sauce, vinegar pre-filtration), and edible alcohol clarification, as well as the filtration of pharmaceutical liquid raw materials that meet food-grade safety requirements, with a wide range of food and pharmaceutical application scenarios complying with food safety norms.
Conclusion
In summary, this food grade PP wire-wound filter cartridge is a highly targeted, food-safe and high-performance clarification filtration product developed for the core needs of fruit juice, beverage and syrup processing in the food and beverage industry, which perfectly combines food safety compliance, stable clarification performance, nutrition and flavor retention, and cost-effectiveness. It is made of food-grade raw materials that meet international food safety standards, completely eliminating the risk of secondary pollution to food and beverage products, and complying with the strict food safety and hygiene control requirements of the food and beverage industry—the most important core demand of the industry. Its stable physical interception filtration performance can efficiently remove various insoluble impurities in fruit juice, beverage and syrup, significantly improve the product’s clarity, sensory quality and storage stability, and reduce the product defective rate caused by turbidity and sedimentation. The graded design of filtration precision and other parameters makes it able to match the differentiated clarification needs of various food and beverage products and different process links, with strong adaptability and practicality in industrial production. Most importantly, the product only removes insoluble impurities without intercepting soluble nutritional and flavor substances, maximizing the retention of the original taste and nutrition of fruit juice, beverage and syrup, which is crucial for maintaining the product’s market competitiveness. With the advantages of easy installation, large dirt-holding capacity, low comprehensive use cost and green environmental protection, it effectively improves the production efficiency of food and beverage processing lines and reduces production costs, while complying with the green production and energy-saving and emission-reduction requirements of modern food enterprises. As an indispensable core food-safe filtration component for the fruit juice, beverage and syrup processing industry, this product adapts to the development trend of the food and beverage industry towards high safety, high quality and large-scale production, and its excellent clarification performance and strict food safety compliance make it have a wide and stable application prospect in the global food and beverage processing industry. With the continuous improvement of food safety standards and consumer demand for high-quality food and beverage products, the market demand for such high-quality food-grade clarification filter cartridges will continue to grow, and it will become the first choice for food and beverage processing enterprises in liquid clarification filtration.
Related products
- Food Grade PP Melt Blown Filter Cartridge: A cost-effective food-grade filtration product with high dirt-holding capacity, suitable for the pre-clarification of fruit juice, beverage and syrup with high solid content, and can be used in series with this wire-wound filter cartridge to extend its service cycle and improve clarification efficiency.
- Food Grade Activated Carbon Filter Cartridge: A food-grade adsorption filtration component made of food-grade activated carbon, which can adsorb organic pigments, peculiar smell, residual chlorine and harmful organic substances in fruit juice, beverage and syrup, and can be used in combination with this wire-wound filter cartridge to realize multi-level purification and clarification of food and beverage liquids.
- Food Grade 304/316L Stainless Steel Filter Housing: A special food-safe filter housing matched with this food grade PP wire-wound filter cartridge, with smooth inner wall, easy to clean, no microbial breeding, and fully complying with food hygiene norms, is the special installation equipment for this cartridge in food and beverage clarification lines.
- Food Grade Filter Cartridge Sealing Ring: A special food-safe sealing accessory made of food-grade silicone rubber/fluororubber, which is non-toxic, tasteless, and has excellent sealing performance, ensuring the sealing of the filter cartridge and filter housing, avoiding liquid short circuit and cross-contamination, in line with food safety requirements.
- Online Turbidity Tester for Food Beverage: A food-grade online detection equipment for real-time monitoring of the turbidity of fruit juice, beverage and syrup before and after clarification, which can work stably in food processing environments, helping operators judge the clarification effect of the cartridge and determine the optimal replacement time.
- Food Grade Liquid Delivery Pump: A special sanitary centrifugal pump for food and beverage processing lines, with food-grade smooth inner cavity, no dead angle, easy to clean, matched with the use of this filter cartridge to ensure the safe and stable delivery of fruit juice, beverage and syrup in the clarification system.
- Food Grade Filter Cartridge Cleaning Agent: A neutral food-grade cleaning agent specially developed for food-grade PP filter cartridges, which can effectively clean the residual impurities on the filter layer under food-safe conditions, and can be reused for low-impurity food liquid filtration, further reducing the production cost.
- Food Grade Bag Filter: A large-flow food-safe pre-filtration equipment for food and beverage processing lines, which can remove large particle insoluble impurities (>50 μm) in fruit juice, beverage and syrup in advance, further protecting this food grade PP wire-wound filter cartridge and extending its service life.