Entry-Level 4-Head Automatic Tuna Filling Machine SUS304 Stainless Steel PLC Control 20 Bottles/Min

The LW-FWS50-4H is an entry-level 4-head automatic shredded tuna filling machine purpose-built for small seafood canning facilities and startup aquatic product processors entering the canned tuna market. Constructed entirely from SUS304 food-grade stainless steel with sanitary finish, this compact filling system automates the critical process of precisely metering shredded tuna and solid-liquid seafood mixtures into tinplate cans and glass jars. Rated at 20 bottles per minute across a filling range of 50-5000ml, the machine combines PLC intelligent control with an intuitive touchscreen interface to deliver consistent ±1% volumetric accuracy, eliminating the costly product give-away and weight inconsistencies inherent in manual filling operations. The integrated photoelectric counting system provides real-time production data tracking, while the comprehensive fault display with diagnostic codes enables operators to identify and resolve issues without specialized technical support. Designed for wet processing environments common in seafood canneries, the machine carries an IP55+ ingress protection rating, ensuring reliable long-term operation despite exposure to washdown procedures and high-humidity production conditions.

The LW-FWS50-4H employs dynamic metering technology that continuously adjusts fill parameters based on product consistency, a critical capability for shredded tuna where solid-to-liquid ratios vary naturally between batches. Each of the four filling heads is independently servo-driven, allowing operators to fine-tune individual head performance through the touchscreen interface without mechanical adjustments. The directional feeding system uses an optimized auger and manifold design that prevents bridging and clogging with fibrous tuna meat, ensuring consistent product flow from the stainless steel hopper through the metering chambers to the filling nozzles. This is especially important for mixed seafood products containing tuna chunks, flakes, oil, and brine where separation during filling can cause inconsistent piece distribution within individual containers. The pneumatic system operates at 0.4-0.6MPa with 0.3m³ per minute air consumption, driven by world-renowned brand pneumatic components including solenoid valves, cylinders, and FRL units that minimize maintenance costs and unplanned downtime. The 1.5KW power-efficient drive system operates on standard 220V/50Hz single-phase supply, eliminating the need for three-phase electrical infrastructure common in larger filling equipment and simplifying installation in smaller production facilities or converted processing spaces.

• 4-Head Independent Servo Filling: Four independently controlled servo-driven filling heads with per-head calibration through the touchscreen interface. Operators can adjust individual head parameters without mechanical changeovers, enabling rapid fine-tuning for different container sizes and product consistencies across tuna, salmon, and mixed seafood formulations.
• PLC Intelligent Control with Touchscreen: Centralized PLC controller with high-resolution color touchscreen providing real-time production monitoring, filling parameter adjustment, product recipe storage for multiple formulations, and comprehensive fault diagnostics with coded alarm messages for rapid troubleshooting by production operators.
• Full SUS304 Stainless Steel Construction: Every product-contact surface, structural frame, and enclosure panel manufactured from SUS304 food-grade stainless steel with sanitary welding and polished finish. This construction meets international food safety standards including GMP and HACCP for seafood processing, with superior corrosion resistance in saline washdown environments.
• Dynamic Metering with ±1% Accuracy: Advanced dynamic metering system continuously compensates for variations in product density and solid-liquid ratio, delivering consistent ±1% volumetric accuracy from 50g to 2000g. This precision eliminates costly overfill give-away while ensuring every container meets labeled net weight specifications.
• Integrated Photoelectric Counting: Built-in photoelectric sensor array automatically counts filled containers in real time, providing production rate tracking, shift output totals, and cumulative batch counts without manual tally sheets or separate counting equipment.
• IP55+ Wet Environment Protection: Sealed electrical enclosures, stainless steel cable glands, and IP55+ rated control panel ensure reliable long-term operation in the wet, high-humidity processing environments typical of seafood canneries, even during daily washdown procedures.

The LW-FWS50-4H is designed for small to medium seafood processing enterprises producing canned tuna, shredded fish, and mixed aquatic products in tinplate cans, glass jars, and aluminum containers ranging from 50g snack portions to 2000g bulk formats. Primary applications include shredded tuna in oil and brine for domestic and regional export markets, chunk-style tuna with vegetable additions for ready-to-eat meal products, salmon flakes in various sauce formulations for premium retail segments, mackerel and mixed fish products for value-oriented canned seafood brands, and pet food-grade tuna and fish by-product filling for the growing premium pet food manufacturing sector. The machine handles diverse product consistencies from dry shredded meat to semi-liquid sauce mixtures, making it suitable for single-product dedicated lines as well as multi-product contract canning operations requiring frequent product changeovers. The compact 1300*800mm footprint enables installation in facilities with limited floor space, while the standard 220V single-phase power requirement eliminates the need for specialized electrical infrastructure in smaller production environments.

Each LW-FWS50-4H filling machine is fully assembled, calibrated, and tested with actual shredded tuna product at the LWT factory before disassembly for export packaging. The machine is wrapped in VCI anti-corrosion film and vacuum-sealed in heavy-duty polyethylene, then crated in a fumigation-free plywood case with steel-reinforced corners and fork-lift channels meeting ISPM-15 international shipping standards. Sensitive components including the PLC controller, touchscreen HMI, servo drives, and pneumatic valves are separately packed in shock-absorbing foam within double-wall corrugated cartons with desiccant packs. Every shipment includes a complete documentation package with mechanical assembly drawings, electrical schematics, PLC program backup on USB drive, English operation manual, spare parts catalog with recommended first-year inventory list, and preventive maintenance schedule. LWT provides remote video-guided installation support with systematic operator training covering machine setup, filling parameter optimization, daily cleaning and sanitation procedures, preventive maintenance routines, and basic troubleshooting. The machine carries a 1-year full warranty with 3-year coverage on core components including the PLC system, servo motors, and filling heads, supported by timely supply of genuine wearing parts and consumables from LWT's global spare parts network.