Tube Sealers

What Tube Sealing Machines Do

Tube sealing machines combine filling and sealing operations into a controlled process:

1. Tubes are positioned and oriented
2. Product is filled into the tube
3. The open end is sealed using heat, ultrasonic energy, or mechanical pressure
4. The tube is trimmed and, optionally, coded

Heat sealing is commonly used to join thermoplastic materials by applying time, temperature, and pressure to create a secure bond. This method is commonly used for:

• Creams, lotions, and gels
• Toothpaste and oral care products
• Pharmaceutical ointments
• Adhesives and industrial pastes

Because sealing occurs after filling, these machines ensure airtight closures and consistent product quality.

Tube sealing systems vary based on production scale, material type, and sealing technology. Let’s take a look at a few different types.

Automatic Tube Filling & Sealing Systems

Fully automated systems combine filling and sealing into one integrated process. These kinds of machines automatically feed and position the tubes and can perform precision dosing for viscous products. They are capable of integrated sealing, trimming, and coding, as well as high-speed production (typically handling 30–120 tubes per minute). They are best suited for:

• High-volume production
• Pharmaceutical and cosmetic manufacturing
• Continuous packaging lines

Semi-Automatic Tube Sealers

Semi-automatic systems require operator input but automate sealing. While tubes need to be loaded manually, they are sealed automatically. These machines feature a compact and flexible design, which allows for a lower cost of investment. These are optimal for:

• Small to mid-scale production
• Lab environments
• Product testing and short runs

Ultrasonic Tube Sealing Machines

Ultrasonic systems use vibration energy instead of heat. They seal plastic and laminate tubes without direct heat, allowing for clean and precise sealing. This method reduces the risk of product contamination and can achieve speeds of up to ~25 tubes per minute. Ultraonisc tube sealers are best for:

• Heat-sensitive products
• Cosmetic and pharmaceutical applications
• High-precision sealing requirements

Aluminum Tube Crimping & Folding Systems

For metal tubes, sealing is done mechanically. These systems fold and crimp the tube end, ensuring an airtight closure. These machines are often used for pharmaceutical or industrial products. They’re good for:

• Aluminum tubes
• Products requiring maximum barrier protection

Core Engineering Capabilities

Remember: Tube sealing machines are engineered for precision, hygiene, and reliability. Their key capabilities include:

• Accurate filling of viscous and semi-viscous products
• Consistent sealing using heat or ultrasonic technology
• Stainless steel construction for sanitary environments
• Integrated trimming and coding systems
• Adjustable settings for different tube sizes

These systems are designed to:

• Prevent leaks and contamination
• Maintain product shelf life
• Ensure uniform packaging quality
• Reduce waste and rework

Because sealing quality directly impacts product integrity, these machines focus on controlled pressure, temperature, and timing.

Best Application Fit

Tube sealing machines are essential for industries packaging viscous, semi-solid, or paste-like products. They are typically used for:

• Cosmetics (lotions, creams, gels)
• Pharmaceutical products (ointments, medicated creams)
• Food products (sauces, condiments)
• Industrial materials (adhesives, sealants)

Tubes are widely used because they provide controlled dispensing and protection from contamination, making them ideal for sensitive formulations.

Tube Sealing System Overview

Integration Within a Packaging Line

Tube sealing machines are typically integrated into specialized tube packaging lines. A typical workflow includes:

1. Tube feeding and orientation
2. Product filling
3. Tube sealing (heat or ultrasonic)
4. Trimming and coding
5. Inspection and discharge

Accutek systems are designed to integrate with filling systems, conveyors, and inspection equipment, ensuring smooth and efficient production flow. When properly integrated, manufacturers gain:

• Consistent product filling and sealing
• Reduced contamination risk
• Improved production efficiency
• Scalable manufacturing capability

Frequently Asked Questions

What is a tube sealing machine?

A tube sealing machine fills and seals collapsible tubes containing products like creams, gels, or ointments using heat, ultrasonic energy, or mechanical sealing.

What types of tubes can be sealed?

They can handle plastic, laminate, and aluminum tubes used across multiple industries.

How does tube sealing work?

Sealing is achieved through heat, ultrasonic vibration, or mechanical crimping, depending on the tube material.

Why is sealing important?

Proper sealing prevents leaks, contamination, and product degradation.

Can tube sealing machines be automated?

Yes. Accutek’s tube sealers are available in semi-automatic and fully automatic configurations for different production scales.

Consult with Packaging System Engineers

Selecting the right tube sealing machine requires evaluating product viscosity, tube material, production speed, and sealing method. Accutek Packaging Equipment Company, Inc. offers tube filling and sealing systems designed for precision dosing, reliable sealing, and seamless integration into modern packaging lines.

For manufacturers packaging creams, gels, and other viscous products, tube sealing machines provide a complete solution for hygienic, efficient, and high-quality tube packaging. Contact Accutek today to learn more about tube sealers and what they can do for your production line. We’re also happy to field any and all questions about our various filling, capping, labeling, and other packaging machines.