Liquid Filling Machines
Reduce product giveaway, eliminate bottlenecks, and automate your entire liquid packaging line.
RMH Systems designs complete liquid filling systems that help manufacturers improve filling accuracy, increase throughput, reduce product waste, and automate downstream packaging operations.
Talk with a Packaging Expert
Specializing in Complete Liquid Filling Systems
A liquid filling machine is only one part of an efficient packaging line. RMH Systems designs complete automated liquid filling systems that create one seamless operation.
Hear from Our Liquid Filling Experts
RMH Systems President Ryan Howard and Automation VP Pat O’Brien discuss how integrated liquid filling systems improve throughput, reduce waste, and support long-term production growth.
In this video:
✓ Factors to consider when automating a liquid filling line
✓ Benefits of complete packaging line integration
✓ How end-to-end automation supports long-term production goals
Choosing the Right Liquid Filling Technology
Net Weight Filling Machines
Net weight filling machines dispense a precise amount of liquid into containers based on weight.
Benefits of Net Weight Filling
Types of Net Weight Fillers
There are different types of net weight fillers—rotary, in-line, and mass-flow.
Rotary Filling Machines
Rotary filling machines use a rotating turntable or carousel to move containers through the filling process and fill multiple containers simultaneously with continuous movement, weighing the containers as they are filled.
In-Line Fillers
In-line fillers stage containers on scales, stop the containers, fill them to weight, then advance them out to the stage of the process.
Mass Flow Meter Filling
Mass flow meter filling involves metering liquid to each nozzle as it fills a container with high-viscosity or foamy liquids, stopping when it reaches the desired mass.
Net Volumetric Filling Machines
Volumetric filling machines dispense a precise volume of liquid into containers. They may use pumps, a combination of pistons and pumps, or fluid dynamics to dispense products.
Benefits of Volumetric Filling
Overflow Filling Machines
Overflow filling machines use a unique method to achieve accurate volume measurements by filling the containers to a specific level, and then any excess product is displaced back into the supply tank through an overflow outlet.
The level of the liquid in the container is determined by the container’s size and the speed at which the product is dispensed. This makes it ideal for non-viscous, foamy, or frothy liquids.
Comparing Automatic Liquid Filling Technologies
| Filling Technology | Best For | Product Characteristics | Typical Products | Key Advantages |
|---|---|---|---|---|
| Net Weight | High-value products, variable-density liquids, and applications where giveaway must be tightly controlled | Products sold by weight or variable density | Lubricants, food oils, chemicals | Fills each container to a target weight for strong accuracy |
| Mass Flow | Free-flowing or moderately viscous liquids requiring precise, repeatable measurement | Free-flowing liquids with consistent flow characteristics | Water, beverages, cleaning products | Measures product directly as it moves through the filling system |
| Piston | Thick, viscous, or particulate-filled products | High-viscosity liquids, creams, pastes, and products with particulates | Sauces, creams, salsa | Handles difficult products while delivering consistent fill volumes |
| Overflow | Thin or foamy liquids in clear containers where fill-level appearance matters | Low-viscosity liquids in clear containers where appearance matters | Bottled water, shampoo, cleaners | Produces a consistent visual fill level across containers |
| Pump | Products with varying viscosities or applications requiring flexible fill volumes | Thin to high-viscosity products, including foaming liquids | Personal care products, chemicals | Can be configured for a broad range of products and containers |
Inline & Rotary Liquid Filling Machines
Production speed, container type, available floor space, changeover requirements, and downstream equipment influence what’s best.
Inline Filling Machines
Containers move through the filler in a straight-line configuration, making inline systems a flexible option for a wide range of products, containers, and production requirements. They’re also well-suited for integration into existing packaging lines.
Common applications include:
✓ Food & beverage
✓ Chemicals & ag chemicals
✓ Cosmetics & personal care
✓ Pharmaceutical products
✓ Operations with frequent changeovers
✓ Existing line upgrades
Rotary Filling Machines
Containers move continuously through a rotating filling carousel, allowing multiple containers to be filled simultaneously. Rotary fillers are commonly used for higher-speed, higher-volume production lines where continuous operation is important.
Common applications include:
✓ Beverage & bottling lines
✓ Food products
✓ High-volume production
✓ High-speed filling lines
✓ Continuous production environments
Liquid Filling Solutions by Industry
Pharmaceutical, nutraceutical, veterinary, and other applications requiring hygienic or sterile filling environments.
Flexible Filling Solutions for Virtually Any Container
RMH doesn’t just sell machines—we configure an entire system around your packaging type.
Complete Packaging Line Integration
A liquid filling machine is only one part of an efficient packaging operation. RMH integrates filling equipment with upstream and downstream automation to create a complete packaging line tailored to your production goals.
Bottle Unscramblers
Orient and feed bottles consistently for efficient, uninterrupted filling operations.
Capping & Sealing
Automatically apply secure closures and tamper-evident seals to protect product quality and integrity.
Apply lot codes, expiration dates, and traceability information using CIJ, laser, or thermal inkjet printing systems.
Inspection Systems
Verify caps, labels, and package quality before products leave the line.
Checkweighers
Verify package weight to improve quality, reduce product giveaway, and support compliance.
System Controls
Integrate every stage of your liquid filling line into one automated system.
Liquid Filling Success Stories
Smitty Bee Honey
Repeat customer Smitty Bee Honey bottles, packages, and processes honey from all over the world for grocery stores, bakeries, and meat processors.
Solutions
- Bottle descrambler – Eliminates the labor-intensive process of placing empty bottles on a line
- Liquid filling machine
- Bottle capper machine – Accurately and securely places lids, snaps or caps on containers or bottles
- Induction sealing machine – Creates a tamper-evident seal on containers or bottles
- Automatic labeling machine – Improves the labeling process by ensuring uniformity, precision, and speed
- Case packer machine – Boosts productivity by packing products more quickly and efficiently
Results
✓ Boosted production speed to 100 units per minute
✓ Improved customer service by reducing fulfillment times while creating capacity to acquire new customers
✓ Stabilized production with continuous, consistent fill line operation and fewer stops and starts
✓ Enhanced product quality through consistent filling, labeling, and case packing
✓ Increased daily output to support higher production demands
Helena Agri-Enterprises
Repeat customer Helena Agri-Enterprises is one of the nation’s leading agronomic solutions providers, supplying farmers and agricultural businesses with crop protection products, fertilizers, seed, precision agriculture technology, custom application services, and data-driven solutions.
Solutions
- Robotic bottle depalletizer – Automates bottle handling to reduce manual labor and improve line efficiency
- Net weight liquid filler with monoblock capper – Delivers accurate fills and consistent capping to minimize product giveaway and improve quality
- Zero downtime labeling machine – Maintains continuous production with uninterrupted label changes, maximizing uptime
- Continuous inkjet printer– Applies reliable lot, date, and traceability codes for compliance and product tracking
- Case forming & sealing– Creates consistently formed, securely sealed cases while reducing manual packaging labor
- Case packer – Automates product loading into cases to increase throughput and ensure consistent pack quality
- Case vision inspection – Verifies case quality and labeling to reduce errors and improve quality assurance
- Industrial coding & marking– Produces clear, accurate case identification for efficient warehouse operations and supply chain traceability
- Robotic palletizer– Builds consistent, stable pallets while reducing labor requirements and ergonomic risks
- Stretch wrapper– Secures pallet loads for safer transport and reduced product damage
- Conveyor systems throughout the line – Provides smooth product flow between stations to eliminate bottlenecks and maximize overall line efficiency
Results
✓ Only one operator is needed to staff the entire fill line process, which is now fully automated
