What Film Should Be Used with an Indumak Bundling Machine?

Is your production line efficient because it uses modern packaging equipment? Then the bundling process should never become a bottleneck. To ensure perfectly bundled packages, choosing the right film for an Indumak bundling machine is just as important.

After all, when the plastic film and the equipment work in perfect harmony, efficiency gains are immediate—combining higher productivity with superior technical performance.

In this article, you’ll find the exact dimensions of the plastic film roll used in Indumak bundling machines.

What Should the Film for an Indumak Bundling Machine Be Like?

The film used in Indumak bundling machines is supplied in roll format. This format provides the physical and mechanical properties required for continuous feeding while enabling instant heat sealing.

In addition, the film must offer the ideal combination of flexibility and strength to:

• Be pulled smoothly by the machine’s drive belts and cut precisely at the sealing frame;
• Withstand the process without excessive stretching or tearing.

For this reason, the film must comply with standardized width and roll diameter dimensions that are compatible with the engineering specifications of Indumak equipment.

Technical Characteristics and Dimensions of the Film

To ensure the best performance of the MK-30 and MK-40 bundling machines, the plastic film must meet well-defined specifications, ensuring a continuous and stable production flow.

The film must have the following characteristics and dimensions:

Bundling Film Width

The minimum film width is the same for both models.

However, the maximum film width varies according to the capacity and design of each machine.

Film Roll Core Diameter

The film roll core (the cardboard or plastic core inside the roll) must have an inside diameter between 70 mm and 90 mm.

This specification ensures a secure, centered fit on the machine’s shafts, providing smooth and reliable operation.

Film Roll Outside Diameter

The full film roll must have a maximum outside diameter of 500 mm.

Adhering to these dimensional specifications is essential to:

• Ensure the film feeds smoothly through the machine.
• Maintain proper alignment from the beginning to the end of each production run.

Indumak Technology: Features That Simplify Bundling Film Handling

Designed with operator convenience and day-to-day efficiency in mind, Indumak bundling machines incorporate innovative features that simplify film handling and make film roll replacement quick and safe:

Quick-Change Expanding Shaft

Available as an optional feature, the expanding shaft streamlines machine setup and speeds up material replacement.

The system responds instantly when compressed air is injected into the shaft. Through a valve located at the shaft end, the mechanism expands and securely locks the film roll in place.

As a result, film roll replacement can be completed in just a few minutes, making the process simple while minimizing operator effort.

Automatic Bundle Positioning Adjustment

Equipped with sensors, this feature automatically repositions the bundle, raising it to ensure optimal alignment.

This reduces losses caused by misalignment and optimizes material utilization.

Motorized Film Unwinder

Depending on the machine configuration and production speed requirements, the equipment can also be fitted with a motorized film unwinder, which feeds the bundling film at the precise tension required for high-performance operation.

Ribbon Unwinder

Offering a low initial investment, this feature delivers significant cost savings and helps reduce production line expenses.

It provides faster printing while allowing more space for printing characters and information on the packaging.

In addition, Indumak technology supports bundling with PCR (Post-Consumer Recycled) plastic, helping reduce the carbon footprint and minimize the waste of natural resources.

This makes it easier to adopt sustainable bundling, attracting environmentally conscious consumers and strengthening your brand’s reputation in the market.

Read also: 5 Reasons to Invest in an Automatic Bundling Machine

Direct Technical Collaboration with Packaging Suppliers

Indumak manufactures machines built to the highest technical quality standards. That’s why our greatest advantage lies in the continuous support and close collaboration we maintain with packaging suppliers and converters.

As a leader in the vertical packaging industry, we develop strong partnerships and conduct joint testing with plastic film manufacturers.

This mutual technical collaboration helps ensure the success of your end-of-line packaging operation.

Together, we test and validate:

• The physical behavior of the films;
• The coefficient of friction of the materials;
• The thermal properties of the materials under actual machine operating conditions.

This allows us to ensure that film feeding and heat sealing deliver the performance required to produce tight, uniform bundles with the minimum possible headspace.

As a result, you protect your products, optimize storage, and achieve more stable bundles.

Take Your End-of-Line Packaging to the Next Level with Indumak Bundling Machines

Combining the right film roll with the robustness and precision of Indumak technology is the ideal way to minimize waste and speed up your production.

Our automated bundling solutions are designed to grow with your business, delivering reliability and operational efficiency.

Want to explore all the configurations, optional features, and capabilities of our machines?

Discover the complete specifications by accessing the exclusive Indumak Bundling Machine Catalog.