Engineered for absolute accuracy, consistent cosmetic levels, and long-term mechanical reliability across food, daily chemical, and industrial fluid applications.
Zhangjiagang 330ml 500ml 1500ml Plastic Glass Bottle Automatic Sparkling Pure Water Liquid Alcohol Wine Beverage Filling Making Machine
Get Specifications & Quotes
Explosion Proof Drum Oil Paint Glue Liquid Weighing Filling Machine, Oil Barrel Automatic Filling Machine Liquid Filled~
Get Specifications & Quotes
Automatic Antibacterial Disposable 84 Disinfectant Fill Liquid Gel Alcohol Fluid Hand Wash Sanitizer Mixing and Bottle Filling Capping Labeling Packing Machine
Get Specifications & Quotes
Automatic 2000 Bph Unitary Aerosol Metal Ball Metal Bottle Bag Gas Liquid Explosion -Proof Propellant Filling Machine
Get Specifications & Quotes
Automatic Daily Chemical Shampoo Detergent Filling Packaging Machine Disinfectant Liquid Bottling Line
Get Specifications & Quotes
1000L Chemical Liquid Filling Machine Semi Automatic Piston Type Can Filling & Bulk Bag Filling Equipment
Get Specifications & Quotes
Gear Pump Liquid Filling Machine Pneumatic Hot Cosmetic Tube Liquid Lipstick Paste Filling Machine
Get Specifications & Quotes
Versatile Pneumatic Piston Filling Machine for High Viscosity Honey Sauce Liquid Water
Get Specifications & QuotesIn high-speed, automated packaging operations, maintaining a consistent cosmetic fill level is paramount, especially for products housed in clear glass or rigid plastic bottles. Traditional volumetric and piston-driven systems measure dosing accuracy by volume or weight. However, minor variations in container thickness, internal volume tolerances, or thermal expansion can result in uneven fill lines on store shelves. The overflow filling system mitigates this issue using a unique fluid dynamics loop.
During the filling sequence, a specialized dual-nozzle assembly seals against the bottle opening. The system pumps the liquid from a main supply manifold into the container until it reaches the calibrated overflow height. Any excess volume, along with foam or displaced air, is routed through an independent return circuit back to the main storage reservoir. This constant recirculation loop ensures that every container exhibits an identical visual fill height, regardless of physical variations in the bottles. Our engineering incorporates anti-aeration and clean-return technologies to minimize product shear and prevent degradation during recycling phases.
Global procurement teams face complex challenges when sourcing packaging systems from overseas exporters. High on the priority list are engineering integration, materials safety, and matching equipment configuration with the plant's existing conveyors and utility hookups. As a premier China exporter, we eliminate these friction points by providing comprehensive customization based on detailed pre-engineering analyses.
Our solutions start by analyzing the rheology of the customer's fluids—whether processing low-viscosity beverages, highly viscous sauces, or corrosive chemical solutions. We then configure the internal path alloys (such as SS304 or SS316L) to ensure compatibility. Additionally, custom neck guides, anti-drip seals, and explosion-proof components are integrated to meet diverse factory layouts and production speeds (ranging from semi-automatic lines to fully automated high-speed monoblocs).
Pneumatic piston systems paired with positive displacement gravity loops to process high-viscosity pastes and foaming detergents cleanly.
Fully rated ATEX/IECEx pneumatics, intrinsically safe enclosures, and purging systems for alcohols, solvents, and fuels.
Tool-less nozzle height adjustments and quick-release sanitary clamp fittings for varying container geometries.
Leading Enterprise in Research & Production of Liquid and Beverage Packing Machines.
Founded in 2009, Hebei Yongli Machine Co., Ltd covers an area of 15,000㎡. We are a leading enterprise in the research, design, and production of high-performance liquid and beverage packaging machinery. By integrating raw material sourcing, CNC precision machining, and specialized system programming under one roof, we provide unmatched supply chain efficiency and product consistency.
Our main products include water treatment plants, beverage and daily chemical filling machines, labeling machines, film shrink wrapping and carton packing machines, and complete beverage processing lines. Leveraging localized supply chains in Hebei, we source certified industrial alloys and electronic controls at scale, passing significant cost-efficiencies and speed-to-market advantages to our global client base.
We employ structured change management and rigorous quality control protocols from initial concept designs to cross-border delivery and site commissioning.
We design custom bottle geometries, label applications, and complete factory layouts in detailed 2D/3D CAD according to customers' specific processing and space requirements.
Upon down payment, our CNC manufacturing floor starts building the machine around your sample bottles and caps, verifying mechanical clearances and PLC configurations.
After machines arrive at your factory, we send our specialized field engineers to manage the physical installation, system debugging, and staff operation training.
Enjoy comprehensive, lifetime technical support. We provide free online troubleshooting, software updates, and complimentary replacement parts during the warranty period.
Operating a global packaging line requires strict adherence to international electrical, mechanical, and safety standards. In the EU, compliance with the Machinery Directive, EMC standards, and CE certifications is non-negotiable. In the United States, equipment must meet UL control panel standards and FDA material guidelines for food-contact surfaces. Our engineering department ensures that all overflow filling machines are designed with these requirements in mind, utilizing components certified by international bodies.
Additionally, localization goes beyond safety labels and compliance documents. It means adapting HMI touchscreen interfaces into localized languages (English, Spanish, French, German, Russian, Arabic, etc.), employing localized voltage wiring (e.g., 220V/380V/460V, 3-Phase, 50Hz/60Hz), and utilizing globally stocked pneumatic and electronic brands (such as Siemens, Schneider Electric, SMC, and Omron). This makes it easy for maintenance teams to source replacement wear parts locally and minimizes downtime.
As the manufacturing landscape shifts towards smart factories, liquid filling systems are adopting IoT integrations. Real-time predictive maintenance, remote telemetry diagnostics, and automatic sensor calibrations are standard features on modern production floors. By integrating smart flow meters and digital feedback loops, modern overflow filling machines can monitor pressure fluctuations and feed rate inconsistencies, alerting engineers before mechanical wear causes issues.
Sustainability is another major force driving industry innovation. Modern systems are designed to minimize waste by reducing the amount of residual liquid left in recovery reservoirs during clean-in-place (CIP) cycles. Our overflow return systems feature optimized internal geometric paths that prevent fluid pooling, enabling rapid changeovers and reducing water and cleaning chemical usage during product shifts.
Answers to complex engineering questions regarding the application, configuration, and operation of overflow filling machinery.
The system seals the container opening with a spring-loaded or pneumatically actuated sealing head. The nozzle projects down to a pre-defined depth inside the neck. Once the liquid level touches the nozzle port, the pressure pushes excess liquid and foam into the overflow return pipe. Therefore, regardless of whether a bottle has a slightly thicker bottom or thinner walls, the liquid height from the top edge remains identical.
While basic gravity overflow fillers are optimized for thin liquids like water, alcohol, juices, and light oils, we customize the system with pneumatic piston pumps and pressurized product manifolds. This enables the machine to handle higher viscosities, such as shampoo, shower gel, honey, and sauces. Quick-release nozzles can also be swapped out to prevent clogging when switching between different products.
All product-contact parts are fabricated from SS304 or SS316L stainless steel. For corrosive liquids (like acids, bleach, or chlorine), the fluid path, manifold, and nozzles are built using polymer materials like PTFE (Teflon), PP, or PVC. This prevents corrosion and prevents metal contamination in the product.
Upon delivery, we send our technical crew to install, level, and calibrate the system. We configure variables like conveyor speeds and pump pressure, and we train your staff on daily operations, clean-in-place (CIP) sequences, and basic maintenance tasks. Remote engineering assistance is also available via video links for real-time troubleshooting.
Select from our specialized line of semi-automatic and high-volume linear systems designed for demanding industrial operations.
Automatic Low Viscosity 100ml-1000ml Gravity Bottle Liquid Filling Machine
Get Specifications & Quotes
Jia He Semi-Automatic 2-Head Gravity Self-Flow Liquid Filling Machine Is Suitable for Filling Wine Juice Beverages Milk and Oil
Get Specifications & Quotes
Semi Automatic Food Packaging Vertical Cosmetic Cream/Paste/Honey Filler Packing Water Filling Machine Liquid
Get Specifications & Quotes
High Speed Self-Flow Gravity Ss Liquid Bottle Filling Machine
Get Specifications & Quotes
Explosion Proof Four Head Perfume Vacuum Liquid Vertical Filling Machine with Negative Pressure Filler
Get Specifications & Quotes
High-Precision Liquid Filling Machine for Daily Chemical Products
Get Specifications & Quotes
Semi Automatic Manual 20L Lipstick Heating and Mixing Filling Machine Lip Balm Cream Liquid Paste Making Equipment Small Scale Business Cosmetic Production
Get Specifications & Quotes
Auto Linear Self Flow Gravity Liquid Filling Machine for Liquor Whisky Rum Vinegar Soy Sauce
Get Specifications & Quotes
Yongli Machine