In the fish and meat processing industry, plastic conveyor belts (also known as modular plastic conveyor belts) are gradually replacing traditional PVC/PU belts and metal conveyor belts. This is mainly due to their significant advantages in hygiene and safety, durability, and low maintenance costs:
Food-Grade Materials (FDA/EU Certified): Commonly made of polyethylene (PE), polypropylene (PP), or polypropylene (POM), they are non-toxic and odorless, and unlike traditional belts, they do not breed bacteria due to surface damage.
Low Risk of Foreign Objects: Compared to metal conveyor belts which are prone to broken wires or shedding metal shavings, and belts which are prone to crumbling, plastic conveyor belts are usually dark blue (the standard identification color in the food industry), and even if damaged, they are easily identifiable by visual inspection or photoelectric detection.
Low Temperature and Quick-Freezing Capability: The mesh chain, made of low-viscosity PE material, can withstand extremely low temperatures from -40°C to -70°C, making it ideal for quick-freezing fish fillets and meat freezing tunnels without becoming brittle or cracking.
Corrosion and Oil Resistance: Oils, blood, and acidic or alkaline cleaning agents used during processing and disinfection will not chemically corrode the mesh chain, overcoming the drawbacks of metal rusting and rubber swelling and deformation.
Modular Assembly for Localized Repair: When a section of the mesh chain is damaged, there is no need to replace the entire chain. Only the damaged module needs to be replaced with pins, reducing repair time from hours to minutes and significantly minimizing downtime losses.
Forward Gear Drive (No Deviation): Driven by interlocking plastic sprockets, it completely solves the problems of slippage, deviation, and edge wear associated with traditional belts. Furthermore, it eliminates the need for high-tension tension, extending the lifespan of the frame and bearings.
We can select suitable materials (PE/PP/POM) or mesh structures for specific processing stages (such as quick-freezing tunnels, washing and dividing lines, draining lines, etc.). You can tell me your specific application scenario, and I will match the technical parameters for you.
Four Key Reasons the Seafood Industry Chooses Plastic Mesh Chains
Enhancing Product Appearance (Anti-sticking and Damage Prevention) Squid, shrimp, fish fillets, and other seafood easily stick to metal or conveyor belts during freezing or transportation. Forced removal can damage the meat. Plastic mesh chains can be customized with a dome-top surface or raised anti-stick texture, significantly reducing the contact area and protecting the integrity of the seafood.
Coping with Intensive Cleaning and CIP Disinfection Seafood is prone to bacterial growth, such as Vibrio parahaemolyticus, requiring frequent rinsing with high-pressure water guns, sodium hypochlorite, or acid/alkaline cleaning agents. The mesh chain features a seamless hinge design, combined with a suspended cleaning system, enabling 360° rapid cleaning.
Safety and Prevention of Foreign Object Contamination Seafood processing often uses food-grade blue (EU/FDA certified) mesh chains. If the mesh chain is accidentally damaged, blue fragments can be quickly identified in the product by visual or optical screening equipment, preventing food safety incidents.
Solutions to Pain Points in the Seafood Industry
High-Salt Corrosion from Seawater: Traditional stainless steel conveyor belts are prone to rust and detachment at weld points when in prolonged contact with seawater and brine, contaminating food and damaging sprockets. Plastic conveyor belts (PP/PE/POM) possess natural chemical inertness, completely eliminating the risk of rust.
Clogging from Ice Water and Grease: Seafood viscera and surface grease easily solidify in the gaps of the conveyor belt when exposed to ice water. Modular conveyor belts can be paired with hinged cleaning structures (such as open hinge designs), allowing high-pressure water guns to penetrate directly into the conveyor belt, thoroughly removing grease and blood.
Injury from Crushing Soft Seafood: Soft seafood such as squid, shellfish, and shrimp are easily crushed and damaged at bends in traditional conveyor belts. Plastic conveyor belts operate smoothly without gaps and feature a dedicated smooth, raised top surface, effectively reducing friction and the rate of crushing.
Material Matching Guidelines:
PE (Polyethylene): Recommended for use in low-temperature environments such as quick-freezing tunnels and cold storage facilities, ranging from -40°C to 60°C, with excellent impact resistance.
PP (Polypropylene): Recommended for use in ambient temperature processing, cooking lines, and regular cleaning lines. It is acid and alkali resistant, has good rigidity, and a temperature range of 1°C to 98°C.
POM (Polyoxymethylene/acetal): Recommended for use in heavy-duty conveyors, long-distance conveyors, and turning machines. It has high tensile strength and abrasion resistance.