Net weight filling systems use a load cell to directly measure the weight of the container being filled, ensuring that a target weight is reached, regardless of density fluctuations within the product.  This type of system offers the highest accuracy for precise weight control, making it ideal for applications where the weight of the final product is critical.  In general, net weigh filling systems are also useful for products with larger particulate content.

Rotary Filling Technologies

We offer 3 specific filling technologies: Mass Flow, Net Weigh, and Volumetric.  When deciding on the best filling technology for your application, consider the unique requirements of the product you are trying to fill.

Viscosity is not a reference characteristic because it does not completely tell us how a product will flow.  For example: Corn syrup has a viscosity of approx. 4,000 cps and ketchup a viscosity of approx. 50,000 cps.  From experience, ketchup will require less pressure to fill versus the corn syrup.  The reason being is that ketchup is a non-Newtonian fluid meaning its viscosity is dependent on the amount of shear stress that is applied to it. 

Ketchup is also shear-thinning, meaning its viscosity lowers when a shear stress is applied to it.  Corn syrup is a Newtonian fluid, meaning its viscosity is constant no matter what shear stresses are applied. 

There are many other factors that can affect a product’s ability to flow (i.e,. Rheology).  Customer’s actual products are required to determine best results versus referencing a known viscosity to determine the ideal filling technology vs. filling head combination.

Net Weigh Filling Technology: Rotary Valve for Large Particulates

• Enables the filling of products with up to 1” x 1” x 1” particulates with positive cut-off
• Can be retracted from the cylinder to be fully CIP’able during CIP process
• Conical valve made from Peek material
• No dynamic seal to wear during production cycles
  

Hygienic and Cleanable

Our mass flow and net weigh filling systems are designed to meet the highest level of hygienic design standards:

• Certified for 3-A SSI standard 17-13
• Active member of EHEDG (European Hygienic Engineering & Design Group).
• Designed to be cleaned or sterilized in place (without human intervention)
• Designed to clean product delivery through the filling turret and absorb turbulent flow through the product delivery line at a minimum of 5 ft/s (1.5 m/s)
• Closed-loop available for CIP/Sterilization or open tray to central collecting drain
• CIP recipes are variable per product & cleaning requirements
• Product supply pump and CIP supply are customer-supplied, with pump flow rates to match product delivery/rate requirement and CIP supply requirements

Net Weigh Filling Technology

• Available with on- or off-board pressurized supply tank
  • 32 RMS internal surface finish of tank
  • 316L, electropolished and passivated after welding
• Open design filling turret, washdown rated
• Tank level adjustable for accurate filling of varying products
• Recipe change from touch screen enables quick product changeover
• Minimal wear parts, with user-friendly accessibility
• Equipped with a single- or dual-position valve:  Two filling speeds are available (low and high), allowing for increased filling accuracy variable filling speed, based on the shape of the bottle and available headspace
• Load cell with IP69K certification, providing reinforced protection against dust, water, high pressure, steam; protected against CIP, COP, SIP up to 130°C

Hygienic Rotary Seal & Top of On-board filler Bowl

• Sanitary rotary seals
• Easy access ports for inside of the bowl