Overview
The thick paste mixing filling machine is specialized equipment for handling high-viscosity fluids, combining mixing and filling processes into a single automated system. It addresses challenges like uneven texture and air entrapment in products such as tomato paste, silicone sealants, or toothpaste. Modern versions feature PLC controls for batch consistency and comply with FDA, CE, or GMP standards depending on the industry. These machines are categorized by filling technology (piston, auger, or peristaltic) and mixing mechanism (ribbon, paddle, or planetary). They significantly reduce labor costs and contamination risks compared to manual operations, making them essential for medium-to-large-scale production lines.
Structure and Working Principle
A standard unit comprises a mixing tank with helical blades for homogenization, a filling pump (often piston-type for precision), and a conveyor system for container handling. The process begins with loading raw materials into the mixing chamber, where counter-rotating blades ensure uniform particle distribution without heat generation. The mixed product is then transferred to the filling module, where servo motors control piston displacement for accurate dosing (tolerance ±1%). Advanced models include vacuum degassing to eliminate bubbles and touchscreen interfaces for recipe storage. Critical components like contact surfaces use 316L stainless steel for corrosion resistance in acidic or saline environments.
Key Features
1. **Viscosity Adaptability**: Handles thick formulations up to 150,000 cP with adjustable shear mixing. 2. **Hygienic Design**: Quick-release clamps and polished surfaces (Ra ≤0.8µm) meet sanitary requirements. 3. **Multi-head Configurations**: Allows parallel filling of 2–16 containers with individual nozzle adjustment. Optional features include nitrogen flushing for oxidation-sensitive products, load cells for weight verification, and ERP system integration for production tracking. Energy-efficient models utilize variable frequency drives (VFDs) to reduce power consumption by up to 30% during idle periods.
Application Areas
**Food Industry**: Packaging ketchup, mayonnaise, or fruit preserves with precise portion control. **Pharmaceuticals**: Dispensing ointments or gels in sterile environments. **Chemicals**: Filling construction adhesives or lubricants with explosion-proof options. Niche applications include cannabis concentrate packaging and battery electrode slurry dispensing. The machine’s versatility allows customization—for example, adding heating jackets for chocolate filling or anti-static measures for electronic-grade pastes.
Maintenance and Precautions
Daily maintenance includes lubricating guide rails, inspecting O-rings for wear, and verifying filling accuracy with test weights. Monthly tasks involve motor bearing greasing and replacing wiper seals on pistons. Operators should avoid running the machine dry to prevent scoring of cylinder walls. For CIP cleaning, use 2% NaOH solution followed by purified water rinses. Always disconnect power before servicing pneumatic components. Spare parts like gaskets and proximity sensors should be stocked based on annual usage forecasts.
B2B Procurement Guide
When evaluating suppliers, request: 1) Material certificates (e.g., 3.1 mill test reports for steel), 2) Factory acceptance test (FAT) procedures, and 3) After-sales service terms (e.g., 24-month warranty on mechanical parts). For cost optimization, consider semi-automatic models for small batches (<500 units/day) or modular designs allowing future upgrades. Lead times typically range 8–12 weeks for custom configurations. Key Chinese manufacturers include Shanghai Joygoal Food Machinery and Zhangjiagang Sunswell Machinery, while European brands like Serac and KHS offer premium automation solutions.
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