How a Liquid Packing Machine Works
When looking for a liquid packing machine, it’s essential to find one that’s customized to your specific production requirements. This helps to ensure higher accuracy, more consistency and a better ROI for your business.
Inline liquid fillers use conveyor systems and can be configured with four to twenty-five filling heads/nozzles depending on your business’ production needs. These are a popular option for packagers with high production demands.
Gravity Filling
The gravity filling of liquid packing machine works with a container’s weight to get the job done. It’s used for products like water, juices, vegetable oil, milk, soup, beverage and vinegar that have low density. The nozzles are lowered into the neck of each container and then opened for a pre-set time, and as air exits the bottle the product flows in.
As the containers move down the line they pause for a few seconds food packaging machine beneath each fill stem. A ball check links to a long rod within each stem, and when the container passes the sensor (like an electronic eye) the magnetic block rises and activates the filling process. This triggers the rod and ball check to link together, causing liquid to flow out of the nozzle onto your product.
Gravity fillers are customized to fit a variety of applications and sizes of bottles and containers. They can also be fitted with explosion-proof controls to handle flammable and corrosive liquid products.
The pumps in a liquid packing machine help with higher viscosity materials that are difficult to convey by the force of gravity alone. This type of machine can be used to package a wide variety of products including honey, shampoo and face cream. It can also work with a variety of closures and labels. All this and more can be accomplished by these machines with efficiency, accuracy and flexibility.
Piston Filling
Piston fillers can be used in a wide variety of industries and applications. They are one of the most straightforward, yet useful machines that a company can have in its factory. These simple machines use a piston to draw a specific amount of liquid from a tank into containers of various shapes and sizes. They are also useful for products that are flammable, corrosive, or hazardous.
The piston cylinder of this machine draws product from the hopper once an operator activates it by stepping on a foot switch. As the piston withdraws, a nozzle is rotated to dispense the liquid into a container. A wide range of nozzles can be used to accommodate the different needs of the project at hand, including narrow ones that can be placed into small-mouthed bottles and large ones for larger-mouthed containers.
Piston fillers are very accurate and can handle a wide variety of liquids and products with different viscosities. The length of the piston’s stroke can be adjusted to dispense different amounts of liquid with each cycle. The cylinder size can also be changed to accommodate different container sizes. This helps to minimize the amount of product automatic packaging machine that is wasted during production. For companies looking to maximize their profits and minimize production costs, the piston filling method is a great choice.
Pump Filling
For thicker products that do not flow easily or for those with suspended particulates, pump filling machines add a little push in the right direction to get the product moving. They can be customized to match the type of pump to your liquid product for more efficient and consistent results than other machine types.
Whether you’re in the food industry where a package of milk or juice gets packed, in the pharmaceutical industry with vaccines or other sterile medical treatments or in the cosmetics and beauty business with skin care creams or makeup, there’s likely to be a liquid packaging machine to fit your needs. A packaging specialist can help you find the best machine for your specific business.
Inline liquid filling machines use a conveyor system to move containers through the production process. They are popular with packagers who need a high level of accuracy in their liquid product packaging, such as pharmaceutical manufacturers. They can be customized to meet the exact requirements of your operation, including vessel size and shape, liquid properties, liquid volume, equipment footprint, etc.
These systems include a piston, peristaltic or time based metering displacement pumps to deliver accurate volumetric fills. They are easy to set up and validate for clean rooms, making them ideal for most thick to thin liquid products.
Bag Making
Once a bag is in the pipeline, there are many small steps before it arrives at its final destination. A team will work out how big it should be, how it will be constructed and what the finishing touches should look like. These may include woven labels, enamel badges or personalised zip pulls. The fabric that the bag is constructed from will also be sourced and dyed, and a paper mould of the finished product will be made for use as a blueprint. Panels are measured, seam allowances are catered for and details such as the length of zips are worked out and ordered.
Depending on the size of the bag, heavier tapes of woven polypropylene can be spun into strips that make up the handles of the bulk bags. These are inserted into the body of each bag at this stage, before the seams are stitched together. A second heat sealing station reinforces the seam and ensures a watertight package.
Once a bag is finished, it can be labelled with date or lot codes using printing or embossing equipment. It can then be put into a carton or case. It can be scanned at this point to ensure it is labelled correctly and ready for delivery. The quality control team will check it for a number of things including stitching, seams, pockets the right way around, hardware in place, Pantone-matched zips and any other finishing touches.
