C18 automatic filter paper tea bag outer envelope machine with control panel and film rolls

Finished tea bags with thread, tag, and outer envelope produced on the C18 machine

Close-up of photoelectric sensor aligning tag and outer envelope on the C18 machine

Side view of the C18 machine showing inner and outer bag formation process

C18 inner and outer tea bag packing machine with adjustable bag size settings

Filter Paper Tea Bag Packing Machines · Model C18

C18 Automatic Filter Paper Tea Bag Outer Envelope Machine

The C18 automatically forms, fills and seals inner and outer tea bags from a single roll of filter paper and composite material, running 40 to 60 bags per minute at 3 to 15 ml per bag. It is built for tea blenders and health-tea producers who need to package small granular blends with a thread and tag attached, while maintaining a clean, professional appearance. The machine uses a volumetric cup filler and photoelectric positioning to align tags and outer envelopes, reducing manual handling and improving consistency.

Forms inner and outer tea bags simultaneously to reduce handling and contamination risk
Photoelectric positioning ensures accurate tag placement on every bag
Volumetric cup filling delivers consistent fill volume across 3 to 15 ml per bag
Adjustable inner and outer bag sizes to match different product formats and branding needs

Key Benefits

Forms inner and outer tea bags simultaneously to reduce handling and contamination risk
Photoelectric positioning ensures accurate tag placement on every bag
Volumetric cup filling delivers consistent fill volume across 3 to 15 ml per bag
Adjustable inner and outer bag sizes to match different product formats and branding needs
Thread and tag attachment is optional, allowing flexibility for different packaging styles
Single operator can manage the line after training, replacing manual assembly teams

Application Scenarios

Tea blenders packaging small granular blends like oolong, green tea, and herbal infusions with a visible thread and tag
Health-tea producers running multiple short batches of medicinal or functional tea blends
Contract packers serving multiple brands with different tag sizes and outer envelope designs
Retail tea brands requiring a premium look with a sealed outer envelope and attached tag

Who It Is For

Tea blenders moving from hand assembly to automated inner and outer bagging
Health-tea producers packaging fine granular or powdered blends in a sealed, branded envelope
Contract packers needing a flexible machine to run multiple tea bag formats with quick changeover
Brands that require a clean, consistent tag placement and outer envelope for retail shelf appeal

Problems It Solves

Manual assembly of inner and outer bags leads to inconsistent fill volume and tag misalignment
Lack of photoelectric positioning causes misaligned tags and poor product appearance
Inconsistent fill volume from hand scooping or gravity feed leads to customer complaints
Exposure to packaging materials during manual assembly increases contamination risk
Outsourced packing delays batch turnaround and limits control over packaging quality

Technical Features

Automatic simultaneous formation of inner filter paper bag and outer composite envelope
Volumetric cup filling with 3 to 15 ml capacity per bag
Photoelectric positioning for accurate tag and outer envelope alignment
Adjustable inner bag size from 50 to 70 mm length and 40 to 80 mm width
Adjustable outer bag size from 70 to 120 mm length and 60 to 90 mm width
Optional thread and tag attachment with 155 mm thread length and 20 to 24 mm tag length

Specifications

Machine model	C18
Machine type	Tea Bag Packing Machine Series
Packing material	Paper/Plastic, Plastic/Plastic, Plastic/Aluminum/Plastic, Paper/Aluminum/Plastic, Tea filter paper, Thread, Tag paper
Measuring method	Measuring cup filler
Filling range	3-15 ml per bag
Packing speed	40-60 bags/min
Tag size	L: 20-24 mm, W: 40-55 mm
Thread length	155 mm
Inner bag size	L: 50-70 mm, W: 40-80 mm
Outer bag size	L: 70-120 mm, W: 60-90 mm
Power supply	220V, 50Hz, 3.7 kW
Dimension	1250 x 700 x 1800 mm (L x W x H)
Machine weight	500 kg

Packing Materials It Runs

Tea filter paper for inner bags with thread and tag
Composite paper for outer envelopes
Plastic/Plastic, Plastic/Aluminum/Plastic, Paper/Aluminum/Plastic laminates for moisture and light barrier
Thread for tying the bag
Tag paper for labeling

How the Machine Works

1Film roll feeding and inner bag formation with thread and tag attachment
2Volumetric cup filling with 3 to 15 ml capacity
3Outer envelope formation and alignment using photoelectric positioning
4Sealing of inner and outer bags with heat sealing
5Discharge of finished tea bag

Quality Control Before Shipment

Certifications

Customization Options

Adjustable inner bag size from 50 to 70 mm length and 40 to 80 mm width
Adjustable outer bag size from 70 to 120 mm length and 60 to 90 mm width
Option to include or exclude thread and tag attachment
Tag size customized within 20 to 24 mm length and 40 to 55 mm width
Power supply configured for destination market on request

How It Compares

Manual inner and outer bag assembly	The C18 replaces a hand assembly team and ensures consistent fill volume and tag alignment, but requires a fixed footprint of 1250 x 700 mm and an operator trained on changeover
Single inner bag machine	The C18 adds an outer envelope and tag, improving product appearance and shelf readiness, but requires more setup time for dual bag formation
Flat bag machine with no outer envelope	The C18 provides a sealed outer envelope for better protection and branding, but operates at a lower speed than some flat bag machines

Use Guide

1Connect a clean dry power supply at 220V 50Hz and 3.7 kW
2Load the filter paper roll for the inner bag and composite material for the outer envelope
3Set inner bag size to 50-70 mm length and 40-80 mm width based on your product
4Set outer bag size to 70-120 mm length and 60-90 mm width for your desired envelope
5Adjust the volumetric cup to 3-15 ml and calibrate with your product before batch run
6Enable photoelectric positioning for tag alignment and test with sample bags before full production

C18 Automatic Filter Paper Tea Bag Outer Envelope Machine FAQ

What fill volume range can the C18 handle?

3 to 15 ml per bag, set via the volumetric cup filler.

How fast does it run?

40 to 60 bags per minute, depending on bag size and material flow.

Can it attach a thread and tag?

Yes. Thread and tag attachment is optional and can be enabled or disabled based on your packaging needs.

What power supply does it need?

220V 50Hz single phase, 3.7 kW. We can adjust the voltage and plug type for your destination market.

Can I change the inner and outer bag sizes?

Yes. Inner bag size is adjustable from 50 to 70 mm length and 40 to 80 mm width. Outer bag size is adjustable from 70 to 120 mm length and 60 to 90 mm width.

Is photoelectric positioning available?

Yes. The machine uses photoelectric positioning to align the tag and outer envelope accurately on every bag.

What floor space and lifting capacity do I need?

The machine measures 1250 x 700 x 1800 mm and weighs 500 kg. Plan for doorway access and forklift handling accordingly.