High-Quality Filling Machines for Precise & Efficient Packaging Solutions

A volumetric filling machine is an automated dosing system that dispenses a precise volume of liquid, paste, or semi-solid material into containers by measuring volume (rather than weight), making it ideal for high-viscosity or shear-sensitive products in food, pharmaceutical, and cosmetic industries. Its core principle relies on pre-calibrated chambers (pistons, gears, or rotors) that displace a fixed volume of material, ensuring accuracy of ±0.5% to ±2%—critical for products where volume consistency is key (e.g., sauce bottles, shampoo tubes, pharmaceutical syrups). For food applications, three common designs dominate: piston volumetric fillers (for thick pastes like peanut butter, chocolate spread, or fillings) use a reciprocating piston to draw material into a cylinder and expel it into containers; the cylinder size is adjustable (5-5000 ml) to accommodate different container volumes. Gear pump volumetric fillers (for medium-viscosity liquids like oil, honey, or molasses) use two interlocking gears to create a vacuum, pulling material through the pump and delivering a fixed volume—they handle materials with particles (e.g., fruit puree with chunks) without clogging. Rotor volumetric fillers (for low-to-medium viscosity liquids like juice, milk, or salad dressing) use rotating chambers that fill with material as they turn, then discharge into containers—they operate at high speeds (up to 300 CPM) for large-scale production. A key advantage is compatibility with challenging materials: they handle high viscosity (up to 1,000,000 cP) and shear-sensitive products (e.g., yogurt with probiotics, where excessive mixing kills cultures) without altering texture or quality. Food-grade models use 316L stainless steel for contact parts and FDA-approved seals (silicone, EPDM) to prevent contamination. They integrate CIP systems (spray nozzles in chambers) for automated cleaning, reducing downtime between batches (e.g., switching from tomato sauce to mustard). Control systems (PLC + HMI) allow operators to adjust volume settings, store recipes (up to 50), and monitor fill levels—some models include auto-calibration to compensate for material viscosity changes (e.g., honey thickens at low temperatures). Compliance with standards like FDA 21 CFR Part 177 (food contact) and ISO 13485 (if used for pharmaceuticals) ensures global acceptance. For food manufacturers, this machine boosts efficiency: it replaces manual filling (reducing labor costs by 50%-70%), ensures label compliance (volume claims), and supports flexible production (quick changeovers for different container sizes). It is particularly valuable for small-to-medium batches (e.g., artisanal jams, specialty sauces) where weight-based filling would be too slow or costly.