Tea packing machine Nylon bags pyramid type ultrasonic sealing packaging equipment

Specification of Tea packing machine

Packing speed: 30~50bags/min
Filling range: 1~10g Accuracy ±0.1g/bag
Feeding system: 2/4 /6/ 8 head electronic weigher
Material shape: 10mm-2mm,stick or slice, irregular shape
Packing material: Nylon, Non-woven mesh,PET, PLA
Width of the material: 140 / 160 / 180mm
Bag size Pyramid: 50-80mm (each edge)
Flat bag: 40-80 (L) x 60-80 (W) mm
Inner and outer diameter of material
Inner : Φ76mm Outer : ≤Φ300mm
Power supply Electricity: 220 V / 1.5 kW
Compressed air: ≥0.6Mpa Sealing method
Sealing and cutting by ultrasonic technology


The machine packing tea with ultrasonic sealing technology is suitable for the dual bag packing of small grain-like materials, such as tea leafs, medicinal tea and healthy teas. Pack broken tea, herb tea, coffee and other similar products.

Category of this article

►1.Drawing &parameters of packaging tea machine;
►2.Functions of packaging machine VFFS set;
►3.Details of tea bags packaging equipment;
►4.What is the difference between Heat sealing and ultrasonic sealing;
►5.Packaging samples tea bags done by the equipment;
►6.Wooden case packaging of tea bags ultrasonic packing machine;
►7.Video demo on how to insall tea bags packing equipment;
►8.After-sales service for Penglai-manufactured Machines;

The line consists of two machines mainly: Pyramid Nylon bags tea packing machine; Outer plastic bags packaging machine;There is the delivery system to connect both and transfer the pyramid nylon bags to the outer plastic bags packing machine for processing the outer bags packaging.

Automatic adjustment of pouch size and filling range.

PLC Control system

Technical parameters of the packing machine with inner nylon bags&outer plastic bags:

Product name:Pyramid tea bag packing machine/Inner & outer Tea bag Packaging Machine

VFFS Outer Bag Packing Part:

Range Of Measurement :Customize according to product
Bag Size (Length):90-120mm (Width):80-100mm
Sealing Form: Three-side sealing / center sealing
Supply Voltage: 220V, 50~60Hz
Packaging Materials:Plastic film, Paper, etc
Dimensions (L*W*H)

Functions of tea packing machine with outer bags VFFS set:

This machine can finish measuring, pulling, feeding, forming, date printing, cutting automatically
Adopts the stainless steel 201 for the machine's mainframe, and stainless steel 304 for the parts touching supplies
Fine packaging performance ,low noise ,clear sealing texture and strong sealing performance.
1.one-time packing for the inner and outer bag
2.The inner bag is made of filter cotton paper, which can be automatically packed with thread and tag.
3.The outer bag is composite paper.Photoelectric locating for the tag and outer bag, adjustment to the need of the content, length of inner bag and outer bag, and tag.

Detailed pictures for the packaging machine with inner outer bags:

Heat vs. Ultrasonics

Heating seals are simple: Package material or film surfaces are held together, and heated sealing bars are applied on one or both sides. Heat flows (conduction) from the bars through the material to the seal interface, where the mating surfaces melt to form a bond. Conduction sealing controls are straightforward, with temperature, pressure, and dwell time selected based on the melt characteristics of the thermoplastics being joined.

In a conduction heat seal, a heated bar (red) is applied to either side of the mating surfaces (blue) to melt the plastic, and then pressure is applied to weld them into a bond.
Ultrasonic welding also joins thermoplastic films and materials, but it generates and applies heat and pressure differently. It generates heat by applying a vibration with a precise frequency and amplitude between the surfaces of the thermoplastic layers. The frictional heat melts the interior of these surfaces and, under pressure, creates a permanent bond.

In an ultrasonic weld, mechanical vibrations applied between two sealing surfaces create frictional heat which melts the surfaces, which are then compressed into a welded seal.

Ultrasonics Technology Advantages

Packaging engineers considering ultrasonic welding as an alternative to heat sealing are often driven by a variety of factors. These include:

• Eliminating seal failures due to contamination. Some products leave residues on sealing surfaces that can become encapsulated within conventional, static conduction heat seals, resulting in contamination, leaks, or failures. These include many food and beverage products, leafy produce, and powders, as well as feeds, viscous liquids, and oils and greases.

The vibratory motion of ultrasonic welding not only heats the sealing surfaces, it also first vibrates potential contaminants out of the seal area. For example, with thermal seals, product particles can get caught on sealing surfaces, potentially compromising them. With ultrasonics, the vibratory action and pressure not only cuts through any large pieces of a product (e.g., produce leaves), but also disperses smaller fragments and moisture out of the seal areal. This improves seal repeatability and reliability.

• Reducing material consumption and cost. A snack food packager making snack bags (6-in. size) consumes about 1 in. of total package length to produce two conventional heat seals per bag (0.5 in. each on top and bottom). Two comparable ultrasonic welds require just 0.25 in. of total package length (0.125 in. each on top and bottom), resulting in a savings of 0.75 in. (0.375 in. × 2) in material per bag with the same net product volume.

• Increasing sealing process speed/cycle rates. Ultrasonic seals can be completed in as little as 150/msec, so cycle times for ultrasonic sealing typically do not present a bottleneck to increasing overall package cycle rates. No cooling time is required either, so sealing rates of up to 110 packages/min. are possible. By contrast, heat-seal cycles must not only complete the heat seal, but also give the melted plastic a brief cooling/set-up period to solidify, making them significantly longer.

• Need to handle temperature-sensitive products. For heat-sensitive or potentially flammable products, including spirits and lubricants, the high external temperatures and longer cycle times involved with heat-seal bars can pose a risk of exceeding the product’s flashpoint. This problem is eliminated with ultrasonics. Similarly for heat-sensitive electronics, ultrasonic welds create strong, repeatable seals in a fraction of a second, with the heat energy constrained to the interior surfaces of the packaging material and away from the electronics.

• Reducing changeover times and improving process flexibility. If packaging demands can shift rapidly, ultrasonic welding equipment lends itself to rapid changes in production because tooling is always “cold.” When needed, operators need only swap out the converter, horn, and anvil/fixture to suit the new production requirements; input the proper process parameters to weld controls; and resume production. In contrast, conduction heat sealing equipment needs a cool-down period before the heat bars can be safely handled. Following changeover, they need a warm-up period to bring the new heat bars to proper sealing temperatures.

• Reducing energy costs. Conduction heat-sealing systems must be continually powered and maintained at a precise operating temperature, so they consume relatively high amounts of energy. For example, consider a packaging line producing 100 welds/minute over two eight-hour shifts per day. A typical conduction sealing process would require four 500-W cartridge heaters (2,000 W/hr or 32,000 W/day) to continuously maintain seal-bar temperatures.

An ultrasonic welder of the same capacity would be equipped with a power supply rated at 1,500 W. But this rating represents the unit’s peak power rating—typically not its continuous power consumption. This is because ultrasonic welds consume power only in short bursts, about 200 msec/weld, or about 20 seconds per minute of power consumption on a line running at 100 packages/min. So, an estimated power savings of 25% is extremely conservative, assuming continuous operation of the ultrasonic welder. Typical power consumption is likely to much lower, given the nature of ultrasonic welding.

Packaging samples pyramid bags with/out outer plastic bags:

Wooden case packaging for tea packaging machine