High-Quality 3-Side Sealed Envelope Machine from China Suppliers and Factory for Efficient Production
Key Features
Wide Size Range
Makes envelopes from 100 mm to 900 mm in length and up to 800 mm in width.
High Production Speed
Produces 60 to 120 envelopes per minute to meet large order demands.
Large Unwinding Capacity
Supports unwinding rolls up to 1000 mm in diameter and 800 mm wide.
Powerful and Efficient
Uses 25 KW power for smooth and continuous operation.
Heavy-Duty Build
Weighs 2500 kg with sturdy dimensions (8500 × 1700 × 2000 mm) for stable performance.
Flexible Paper Use
Suitable for bamboo fibre, glassine, and kraft paper to produce different envelope types.
Quick Seal Tape
The envelopes are sealed on three sides, and one side has a peel-off tape with special paper for easy and quick closing.
Video Demonstration
Technical Specifications
| Unwinding Width | 800mm |
| Unwinding Diameter | 1000mm |
| Bag Length | 100-900mm |
| Bag Width | 800mm |
| Production Speed | 60-120 pcs/min |
| Total Power | 12.5KW |
| Machine Weight | 2500kg |
| Dimensions | 8500x1700x2000mm |
Why Choose the 3-Side Sealed Envelope Machine?
This machine is ideal for businesses that need fast and reliable envelope production. It allows the use of various eco-friendly papers, helping companies meet environmental goals while maintaining packaging quality. The large unwinding capacity and adjustable bag sizes make it flexible for many applications, from luxury invitations to heavy-duty garment packaging. With easy tape sealing, the envelopes are secure and convenient for end-users.
If you want to improve your envelope production with a machine that is fast, strong, and durable, this 3-side sealed envelope machine is the right choice. It combines quality, speed, and sustainability to help your business grow.
Frequently Asked Questions
What envelope sizes can the 3-side sealed envelope machine produce?
The machine is highly adjustable, producing envelopes ranging from 100 mm to 900 mm in length and up to 800 mm in width.
What is the production speed of this envelope machine?
It operates at a high production speed of 60 to 120 envelopes per minute, making it ideal for meeting large-scale order demands efficiently.
What types of paper can be used with this machine?
This machine offers flexible paper compatibility and is suitable for eco-friendly choices such as bamboo fibre, glassine, and kraft paper.
How are the envelopes sealed?
The envelopes are sealed on three sides, and one side features a quick-seal peel-off tape with special paper for easy and secure closing.
What are the power and space requirements for the machine?
The machine uses a total power of 12.5KW (with a peak operation capacity up to 25 KW) and has physical dimensions of 8500 x 1700 x 2000 mm, weighing 2500 kg.





