C28DX automatic pyramid tea inner and outer bag filling machine with stainless steel frame and control panel

Double-layer pyramid tea bags with visible whole leaf produced on the C28DX machine

3-side ultrasonic sealing head and film roll on the C28DX tea bag packing machine

Pyramid Tea Bag Packing Machines · Model C28DX

C28DX Automatic Pyramid Tea Inner and Outer Bag Filling Machine ()

The C28DX forms, fills and ultrasonically seals pyramid tea bags with an inner and outer layer from a single roll of nylon or non-woven film, running 30 to 50 bags per minute at 1 to 10 g per bag. It is built for tea blenders and producers who need to package whole leaf, herbal and specialty teas in a double-layered pyramid bag with a visible blend and secure seal. Two ultrasonic sealing devices create a tight, narrow seam without heat or adhesive, reducing material waste and preserving delicate aromatics.

Double-layered inner and outer pyramid bag structure protects the tea blend during storage and transport
Ultrasonic sealing avoids heat and adhesive so delicate aromatics are not altered at the seam
Electronic scale filling holds 0.1 g accuracy per bag across the 1 to 10 g range
Narrow seal edge reduces film waste compared to wide heat-sealed borders

Key Benefits

Double-layered inner and outer pyramid bag structure protects the tea blend during storage and transport
Ultrasonic sealing avoids heat and adhesive so delicate aromatics are not altered at the seam
Electronic scale filling holds 0.1 g accuracy per bag across the 1 to 10 g range
Narrow seal edge reduces film waste compared to wide heat-sealed borders
One operator can run the line after training instead of a hand-filling team
Supports both pyramid and flat inner bag formats without machine changeover

Application Scenarios

Tea blenders packaging single-origin whole leaf tea in a double-layered pyramid bag for premium retail
Herbal and health tea producers running short batches of multiple blends with consistent weight
Contract packers serving several brands from one line with quick format changeover between pyramid and flat inner bags
Producers of specialty teas like Darjeeling, Assam and Ceylon needing a secure, visible bag for export

Who It Is For

Tea blenders moving from outsourced packing to in-house double-layered pyramid bagging
Herbal tea producers whose blends are too coarse for flat filter paper bags
Brands that need the tea visible through a transparent inner bag with a protective outer layer
Buyers replacing an ageing heat-seal machine that damages nylon film or causes seal failure

Problems It Solves

Coarse whole leaf and flower blends jam in machines designed for fine cut or fannings
Heat sealing melts a wide edge into nylon film and wastes material on every bag
Hand filling gives inconsistent bag weight and cannot hold a 0.1 g target across a batch
Single-layer pyramid bags do not provide sufficient protection for fragile or aromatic blends
Non-food-grade film risks failing customer and retailer safety audits

Technical Features

Ultrasonic sealing and cutting with two sealing devices for a tight narrow seam
Electronic scale filling with 0.1 g per bag accuracy across the 1 to 10 g range
Supports inner and outer pyramid bag formats with a single machine setup
Accepts nylon and non-woven filter film imported from Japan plus PET and PLA biodegradable material
Packing roll width selectable at 140, 160 or 180 mm
Outer bag size adjustable at 80-100 mm width and 90-120 mm length
Runs on single phase 220V 50Hz at 1.85 kW with air supply at 0.6 MPa

Specifications

Machine model	C28DX
Machine type	Tea Bag Packing Machine Series
Packing material	Nylon imported from Japan, non-woven fabric, 100% biodegradable transparent material, PET, PLA
Measuring method	Electronic scale filling
Filling range	1-10 g/bag, accuracy 0.1 g/bag
Packing speed	30-50 bags/min
Packing roll width	140, 160, 180 mm
Outer bag size	Width 80-100 mm, Length 90-120 mm
Sealing method	Sealing and cutting by ultrasonic
Qty of sealing device	2 sets
Air supply	0.6 MPa, air compressor can be equipped
Motor power	220V, 50Hz, 1.85 kW
Dimension	2000 x 1200 x 2850 mm (L x W x H)
Machine weight	950 kg

Packing Materials It Runs

Nylon mesh film imported from Japan, non-toxic, heat resistant and food grade
Non-woven fabric filter film for opaque pyramid bags
PET film for high clarity pyramid bags
PLA corn fibre film for 100% biodegradable transparent bags

How the Machine Works

1Film unwind and pyramid bag forming with inner and outer layer
2Electronic scale weighing and filling
3Ultrasonic sealing by two sealing devices
4Cutting and discharge of finished double-layered bag

Quality Control Before Shipment

Certifications

Customization Options

Choice of 140, 160 or 180 mm roll width to match your bag size
Outer bag width set at 80-100 mm and length at 90-120 mm
Nylon, non-woven, PET or PLA film supplied to suit your brand and compostability claim
Air compressor supplied with the machine where site air is not available
Voltage and plug arranged for the destination market on request

How It Compares

Single-layer pyramid tea bag machine	The C28DX provides a protective outer layer for the inner bag, reducing breakage and preserving aroma, but requires more film and setup time
Heat sealed pyramid machine	Ultrasonic sealing keeps the edge narrow and avoids scorching nylon, at the cost of an air supply requirement
Manual double-layer bagging	The C28DX replaces a hand-filling team and holds bag weight consistent, but needs a fixed footprint of 2000 x 1200 mm and an operator trained on changeover

Use Guide

1Connect a clean dry air supply at 0.6 MPa and a single phase 220V 50Hz outlet
2Load the film roll matched to your chosen 140, 160 or 180 mm width
3Set outer bag size to 80-100 mm width and 90-120 mm length for your product
4Enter target fill weight between 1 and 10 g and calibrate the electronic scale with your own tea
5Run ten sample bags and check weight and seal before starting the batch
6Clean the filling hopper between blends to avoid carry-over of aroma