Vertical powder stick pack machine

Vertical powder strip packaging machines are automated machines that continuously feed roll film and heat-seal longitudinally and laterally to fill long, thin, flexible packaging bags with powdered materials. This equipment uses screw metering or volumetric metering cups to dispense materials and can automatically adjust the feeding amount based on the material's specific gravity. Its production speed varies depending on the number of channels; single-channel machines typically operate at 30 to 60 bags per minute, while multi-channel models, with multiple lines operating simultaneously, can achieve 200 to 400 bags per minute. The machine integrates multiple processes such as unwinding, forming, coding, filling, sealing, and cutting to replace manual filling.

What are the benefits of using a vertical powder strip packaging machine?

Multi-channel strip packaging machines solve many practical problems in small-sized powder packaging. Traditional manual or semi-automatic packaging easily generates dust, resulting in high dust concentrations in the working environment and material leakage at the sealing point. This model reduces dust adhesion in the sealing area by adding dust collection devices and static eliminators. Meanwhile, powder packaging often encounters issues like material bridging and uneven feeding. The unit's mixing mechanism and hopper vibrator ensure the powder remains fluid. The machine uses SS304/SS316 material, meeting GMP standards and facilitating material changes and cleaning. Compared to three-side-seal and four-side-seal square bag structures, the narrower strip packaging requires less film, reducing the film area needed for the same weight (e.g., 3g or 5g) of material, directly lowering long-term consumable costs.

How does a vertical powder rod packaging machine work?

During operation, the machine first pulls the film roll, folding it into a tube shape via a forming device. A heating block seals the back and bottom, creating an open-top bag. Simultaneously, a servo screw in the top hopper rotates quantitatively, pushing the powder into the bag. Finally, a horizontal sealing mold closes the top of the bag, and an internal cutter cuts the bag, sending the finished strip onto the conveyor belt for delivery.

Model Specifications Table

The technical specifications table below shows standard single-channel and multi-channel vertical powder stub packaging machine models to help select the appropriate capacity for your production line.

How Much Does a Vertical Powder Stub Packaging Machine Cost?

The price of a vertical powder stub packaging machine varies depending on the number of channels and customization requirements, ranging from approximately $1,999 to $14,500. For example, a single-channel powder packaging machine with a production capacity of 40 bags/minute typically costs around $4,000. If the production line needs to increase capacity, multi-channel models with 4, 6, or 8 channels are used. These models have a more complex overall structure and generally range in price from $5,600 to $13,500. If additional coding machines, nitrogen filling devices, or automatic feeders are required, the cost will be added to these additional costs based on the market price of the accessories.

Application Industries

This equipment is suitable for various products requiring quantitative small-package packaging. In the food and beverage industry, it is used for packaging white sugar, instant coffee powder, black tea powder, solid fruit juice beverages, and milk powder. In the health and wellness sector, this machine can be used to package probiotic powder, collagen powder, green juice powder, and meal replacement fiber powder. For everyday consumer goods, it's also used to package small packets of baking soda, starch, seasoning powder, and even some powdered cleaning agents.

The visual appearance of the packaging bags can be diversified by changing the cutter and sealing mold. Common styles include:

Flat-opening back-sealed bag: A single weld seam on the back, with straight edges at both ends, a simple structure.

Zergled easy-tear bag: The seal has V-shaped or serrated micro-cuts, making it easy for consumers to tear open by hand.

Rounded corner bag: The four corners are rounded by a stamping cutter to avoid sharp edges scratching the skin or the bag.

Frequently Asked Questions

Q: Which parts need to be adjusted when changing the width of the packaging bag?

A: The width of the bag is determined by the physical dimensions of the forming machine. If the width needs to be changed from 25mm to 35mm, the entire set of metal forming machines and slitting blades of the corresponding size must be replaced after stopping the machine; adjustments cannot be made solely on the touchscreen.

Q: How to solve the filling error of highly viscous or hygroscopic powders?

A: For powders that easily absorb moisture and clump, a heating jacket can be added to the hopper to keep it dry, or dry air can be continuously circulated into the sealed hopper. Simultaneously, the surface polishing process of the stainless steel screw can be used to reduce powder adhesion.

The vertical powder strip packaging machine integrates screw metering and continuous forming technology to achieve batch packaging of small-gram weight powder materials. It can stabilize the packaging weight and reduce sealing clamping problems, helping to control packaging material loss during the production process. Understanding its operating principle, the price fluctuations caused by configuration differences, and the processing methods for different bag types can provide a reference for equipment selection in packaging lines.