Rotary Volumetric Filler – High‑Speed Fillers Accommodate a Wide Range of Containers and Products, from Water‑Thin to Heavy Syrups, Oils and Shampoos

July 24, 2025

At Laub\Hunt, we understand that modern production lines demand high-speed volumetric filling coupled with industry-leading accuracy, versatility, and robust engineering. Our Rotary Volumetric Filler, also known as the Posifiller, delivers just that—precise, high-output filling for countless container and product types.

High Speed, High Throughput

Built for demanding operations, the Rotary Volumetric Filler runs at up to 600 containers per minute (cpm) while offering fill accuracy of ±¼ %, minimizing product waste and inconsistencies.
Its rotary design supports speeds up to 600 cpm and accommodates up to 120 nozzles on large-frame machines.


Wide Range Compatibility: From Thin to Thick

This filler is engineered to handle a broad viscosity range—from water-thin liquids like water or light juices, to heavier syrups, oils, detergents and shampoos. Its enclosed filling system ensures product integrity and precision across the spectrum. Containers from 1 oz to 5 gallon volumes are accommodated with minimal changeover time and tool-free adjustments.

Precision Mechanics at Work

At the heart of the Posifiller is a unique enclosed piston‑cylinder assembly. A free-floating piston delivers exact volumes by displacement between positive stops, controlled by an adjustable volume rod. The four‑way spool valve maintains balanced pressure and enables accurate two-phase pistoning for each fill.
These design features deliver consistent fill volumes and ensure extremely low deviation—critical in regulated or costly product environments.

Watertight Design for Hygiene and Efficiency

Sanitary operation is built into the design. No ambient air enters the system—from surge tank to nozzle—thanks to the closed construction of the Posifiller. This reduces contamination risk and maintains product quality.
The system is also
washdown-capable, with all drive motors placed atop the unit; and CIP (clean-in-place) product flush systems are standard or optionally automated.

Engineered for Flexibility and Ease

Designed for minimal downtime, the machine enables on‑the‑fly volume adjustment across stations via a motorized volume plate—ideal for format changes or multiple SKUs. Starwheels and nozzle assemblies allow tool‑free starwheel changes, making size changeovers fast and operator‑friendly.

Industry‑Grade Features

  • Stainless steel construction (T304 standard, optional T316 or specialty materials for caustic applications)
  • Individually adjustable cylinders and nozzles
  • Safety-interlocked guarding and AC drive with clutch
  • Premium options including explosion-proof (NEMA‑4X or NEMA‑7) electrics and automatic CIP
  • Conveyor lengths up to 10 ft with precision Delrin chain guides

Why Choose Laub\Hunt’s Rotary Volumetric Filler?

With unmatched precision, high-speed throughput, and broad product/container adaptability, Laub\Hunt’s Posifiller is trusted in food & beverage, personal care, chemicals, household products, and more. Whether filling shampoos, oils, syrups or beverages, this filler delivers speed, efficiency and flexibility you can rely on.

October 6, 2025
Laub/Hunt Looks Ahead: Innovation and Growth After a Successful 2025 PACK Event in Las Vegas After a standout showing at the Pack Event trade show in Las Vegas in September 2025, Laub/Hunt Packaging Systems is poised to enter an exciting new chapter of growth, innovation, and industry leadership. The buzz generated at our booth—where we showcased multiple types of bottle filling setups—has opened new doors, galvanized partnerships, and sharpened our vision for the future. At the Las Vegas event, attendees got a firsthand look at how Laub/Hunt tackles different filling challenges: from rotary volumetric and rotary liquid fillers , to pressure metering systems , and mag-flow electromagnetic fillers . Our flexible displays allowed visitors to see side-by-side comparisons of fill accuracy, speed, and hygiene features. That level of transparency and capability put the power in the hands of prospects to envision our equipment integrated into their production lines. Looking ahead, the future for Laub/Hunt hinges on several pillars: 1. Expanding Modular & Custom Solutions We know that no two production lines are identical. Some clients need high-speed rotary fillers, others need gentle bottom-up filling for foamy or delicate products, still others require viscosity-handling systems. Laub/Hunt is doubling down on modular designs, which allow upgrades or swapping of modules (e.g. nozzles, pumps, control systems) without needing to replace the entire machine. Customization—whether for unique bottle shapes, unusual liquids, or strict hygiene standards—will remain central to how we serve new customers. 2. Smarter Machines, Predictive Maintenance & AI We are actively investing in sensor integration, IoT connectivity, and machine-learning models to predict wear, flag performance degradation, and schedule maintenance before issues arise. Future Laub/Hunt machines will better communicate with upstream/downstream equipment, reducing downtime and boosting throughput. 3. Global Reach, Local Support From our base in Norwalk, CA, Laub/Hunt has manufactured liquid fillers for over 75 years. As we expand, the next phase is to strengthen regional service centers, spare parts networks, and local technical teams. That way, whether a beverage company in Europe or a cosmetics firm in Asia is deploying our rotary or pressure metering fillers, they’ll experience responsive support and faster turnarounds. 4. Vertical Market Focus & Industry Compliance As clients in food & beverage, personal care, household chemicals, and pharmaceutical industries grow more stringent in hygiene, regulatory, and sustainability demands, Laub/Hunt will double efforts in sanitary design (CIP, washdown compatibility), environmental efficiency, and compliance certifications. Our bottle filling machines will continue evolving to meet these vertical market needs. 5. Education, Training & Partnership We plan to host more webinars, interactive demos, and on-site training for customers, ensuring their operators can get optimal performance out of their equipment. Our Field Service and Technical Support teams will play a bigger role in post-sale success. Inspired by what you saw at the tradeshow? Let’s bring that momentum into your line. Explore our full line of rotary fillers , mag-flow filling systems , pressure metering machines , and Rotary Liquid bottle filling solutions . Contact our team today to request a live demo, quote, or consultation—let’s engineer the future of your bottling line together.
September 19, 2025
Every year, PACK EXPO brings together the best and brightest in the packaging industry. This fall, the event returns to Las Vegas from September 29 through October 1, 2025 , and Laub/Hunt is proud to be part of it. As a leader in bottle filling equipment and turnkey packaging technology, we’re excited to showcase the innovations that are shaping the future of liquid filling and packaging automation. Why Attend PACK EXPO? PACK EXPO Las Vegas is more than just a trade show—it’s the premier gathering point for manufacturers, engineers, and decision-makers across food, beverage, pharmaceutical, cosmetic, and chemical industries. With thousands of exhibitors and attendees, it’s the perfect place to compare solutions, see machinery in action, and gain insights into trends that will influence production for years to come. For those searching for ways to increase line speed, improve fill accuracy, and reduce downtime , there’s no better opportunity to see technology up close and in action. What You’ll See at the Laub/Hunt Booth At Laub/Hunt, we know that every production line is unique. That’s why we’ll be demonstrating multiple solutions designed to meet different needs. Visitors will see: High-Speed Rotary Fillers capable of handling up to 1,000 containers per minute with unmatched precision. In-Line Fillers designed for flexibility, quick changeovers, and smaller production runs. Nozzle Innovations for foamy, viscous, and sensitive liquids—ensuring smooth fills with less waste. Turnkey Packaging Lines that integrate unscramblers, cappers, labelers, and case packers into one seamless system. You’ll also have the chance to talk with our engineers about the latest developments in sanitary construction, smart recipe management, and clean-in-place (CIP) technology . Whether your priority is speed, compliance, or versatility, we’ll have real-world examples to show you how our equipment performs under demanding conditions. The Benefits of Seeing Equipment Live Reading spec sheets can only go so far. At PACK EXPO, you can see Laub/Hunt machines operating in real time—watching the consistency of fill levels, the smoothness of transitions, and the simplicity of operator controls. You’ll see how quick changeovers reduce downtime and how integrated systems can cut labor costs while improving efficiency. It’s also a rare opportunity to compare multiple solutions side-by-side and ask questions directly to the people who designed and built the equipment. Let’s Connect in Las Vegas Our team is excited to meet with industry professionals, discuss challenges, and explore opportunities for innovation. Whether you’re expanding capacity, looking for more accurate filling solutions, or building a completely new line, PACK EXPO is the perfect time to connect. Don’t Miss It! Dates: September 29 – October 1, 2025 Location: Las Vegas Convention Center Planning to attend PACK EXPO Las Vegas? Schedule a private demo with Laub/Hunt to see how our filling equipment can transform your production line. Contact us today to reserve your spot and make the most of your trade show visit.
Bottle Fillers
September 8, 2025
At Laub/Hunt, we specialize in Pressure Metering Fillers designed for high-viscosity foods and semi-liquid products. These systems are built to handle challenging applications while delivering precise, consistent fills every time. The heart of the Pressure Metering system lies in its innovative filling head. This head is made of three plates carefully engineered to work together: The top two plates remain stationary to stabilize the flow. The bottom plate rotates , controlling the product’s movement and ensuring accurate portioning. This unique design allows for efficient filling of products that are too thick or uneven in texture for standard filling systems. From sauces and creams to chunky spreads and semi-liquid foods, our Pressure Metering Fillers are built to keep production lines running smoothly without sacrificing quality. Manufacturers trust Laub/Hunt for equipment that is durable, easy to maintain, and adaptable to a variety of product types. By combining precision engineering with robust construction, our fillers offer long-term reliability in even the most demanding environments. Looking to upgrade your filling line? Contact Laub/Hunt today to learn how our Pressure Metering Fillers can improve your efficiency and deliver unmatched accuracy in your production process.