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C28DX automatic pyramid tea inner and outer bag filling machine with stainless steel frame and control panel
C28DX automatic pyramid tea inner and outer bag filling machine with stainless steel frame and control panel
Double-layered pyramid tea bags with visible whole leaf produced on the C28DX machine
Double-layered pyramid tea bags with visible whole leaf produced on the C28DX machine
Ultrasonic sealing head and film roll on the C28DX pyramid tea bag machine
Ultrasonic sealing head and film roll on the C28DX pyramid tea bag machine

Pyramid Tea Bag Packing Machines · Model C28DX

C28DX Automatic Pyramid Tea Inner and Outer Bag Filling Machine

The C28DX automatically forms, fills and ultrasonically seals pyramid tea bags with inner and outer layers 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 designed for tea producers and blenders who need to pack whole leaf, herbal and flower blends in a double-layered pyramid bag with a visible, intact fill. Two ultrasonic sealing devices create a tight narrow seam without heat or adhesive, and electronic scale filling ensures 0.1 g accuracy per bag.

  • Double-layered inner and outer pyramid bag structure protects delicate whole leaf and prevents spillage during handling
  • Ultrasonic sealing avoids heat and adhesive so aromatics are not altered at the seam
  • Electronic scale filling holds 0.1 g accuracy so bag weight stays consistent across batches
  • Narrow seal edge reduces film waste compared to wide heat-sealed borders

Key Benefits

  • Double-layered inner and outer pyramid bag structure protects delicate whole leaf and prevents spillage during handling
  • Ultrasonic sealing avoids heat and adhesive so aromatics are not altered at the seam
  • Electronic scale filling holds 0.1 g accuracy so bag weight stays consistent across batches
  • Narrow seal edge reduces film waste compared to wide heat-sealed borders
  • One operator can manage the line after training, replacing a manual packing team
  • Handles 140, 160 or 180 mm roll widths and outer bag sizes from 80 to 100 mm wide and 90 to 120 mm long

Application Scenarios

  • Tea estates packaging single-origin whole leaf in double-layered pyramid bags for premium retail distribution
  • Herbal and health tea producers running short batches of multiple blends with consistent fill weight
  • Contract packers serving several tea brands from one line with quick format changeover between inner and outer bag sizes
  • Chinese tea producers exporting Darjeeling, Assam or Ceylon blends with branded double-layered pyramid packaging

Who It Is For

  • Tea blenders moving from outsourced packing to in-house double-layered pyramid bagging
  • Producers of whole leaf and flower blends that cannot be packed in flat filter bags
  • Brands requiring a visible, intact fill inside a transparent pyramid bag with a protective outer layer
  • Buyers replacing an older machine that uses heat sealing and causes film scorching or wide waste edges

Problems It Solves

  • Whole leaf and coarse blends jam in machines designed for fine cut or fannings in flat bags
  • Heat sealing melts nylon film and creates a wide waste edge, increasing material cost per bag
  • Hand filling leads to inconsistent bag weight and cannot meet a 0.1 g per bag accuracy target
  • Single-layer pyramid bags allow leaf to shift or spill during transport and handling
  • Non-food-grade film risks failing safety audits from retailers or importers

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
  • 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 from 80 to 100 mm wide and 90 to 120 mm long
  • Runs on single phase 220V 50Hz at 1.85 kW with air supply at 0.6 MPa

Specifications

Machine modelC28DX
Machine typeTea Bag Packing Machine Series
Packing materialNylon imported from Japan, non-woven fabric, 100% biodegradable transparent material, PET, PLA
Measuring methodElectronic scale filling
Filling range1-10 g/bag, accuracy 0.1 g/bag
Packing speed30-50 bags/min
Packing roll width140, 160, 180 mm
Outer bag sizeWidth 80-100 mm, Length 90-120 mm
Sealing methodCutting and sealing by ultrasonic
Qty of sealing device2 sets
Air supply0.6 MPa, air compressor can be equipped
Motor power220V, 50Hz, 1.85 kW
Dimension2000 x 1200 x 2850 mm (L x W x H)
Machine weight950 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 double-layer pyramid bags
  • PET film for high clarity double-layer pyramid bags
  • PLA corn fibre film for 100% biodegradable transparent bags

How the Machine Works

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

Quality Control Before Shipment

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Certifications

  • ISO
  • CE

Customization Options

  • Choice of 140, 160 or 180 mm roll width to match your bag size
  • Outer bag width set at 80 to 100 mm and length at 90 to 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 machineThe C28DX provides a protective outer layer that prevents leaf spillage and maintains bag integrity, but requires more film and a longer setup time
Heat sealed pyramid machineUltrasonic sealing avoids film scorching and reduces waste edge, but requires a compressed air supply not needed in heat-sealed models
Manual inner and outer bag packingThe C28DX replaces a hand-filling team and holds consistent fill weight, but requires a fixed footprint of 2000 x 1200 mm and an operator trained on changeover

Use Guide

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

C28DX Automatic Pyramid Tea Inner and Outer Bag Filling Machine FAQ

What bag weight range can the C28DX run?

1 to 10 g per bag with an accuracy of 0.1 g per bag, set on the electronic scale filler.

How fast does it run?

30 to 50 bags per minute depending on bag size, fill weight and how free-flowing your blend is.

Can it run biodegradable film?

Yes. It runs PLA corn fibre and 100% biodegradable transparent material as well as nylon, non-woven fabric and PET.

Do I need an air compressor?

The machine needs an air supply at 0.6 MPa. If your site has no compressed air we can equip the machine with an air compressor.

What power supply does it need?

220V 50Hz single phase, 1.85 kW motor power. Tell us your destination voltage and we will arrange it before shipment.

How much floor space and lifting capacity do I need?

The machine measures 2000 x 1200 x 2850 mm and weighs 950 kg, so plan the doorway height and forklift access accordingly.

Is the machine certified?

Sengong is certified to ISO and CE. Certificates are sent by email or WhatsApp on request.

Get A Quote For the C28DX

Tell us your product, bag weight and hourly output. We confirm the film, the bag size and the total delivered price.