EXTRUTEX EX-HM Series Mini HDPE/LDPE Blown Film Line

Compact Monolayer Blown Film Extrusion Machine for T-Shirt Bags

The EXTRUTEX EX-HM Series Mini HDPE/LDPE Blown Film Line is designed for small-scale polyethylene film production, pilot manufacturing, and businesses seeking a compact, practical, and reliable blown film extrusion solution. Available in three models—EX-HM35, EX-HM45, and EX-HM50—the series offers different production capacities and film widths to meet a range of manufacturing requirements.

Suitable for LDPE, LLDPE, MDPE, and HDPE, the EX-HM Series produces monolayer polyethylene film for T-shirt bags and other suitable lightweight plastic packaging applications. Its compact configuration makes it an option for manufacturers establishing a new production line, expanding an existing facility, or producing narrower film rolls for specific bag-converting applications.

Designed around practical operation, production flexibility, and dependable extrusion performance, EXTRUTEX mini blown film equipment helps manufacturers select a machine that matches their required film width, material, and target output.

1. Product Overview

The EX-HM Series is a compact monolayer blown film extrusion line for processing common polyethylene materials. During production, plastic pellets are melted and homogenized in the extruder before being pushed through a circular die to form a tubular film. Air inflation expands the film bubble to the required dimensions, while cooling, haul-off, and winding systems help produce finished film rolls for downstream bag manufacturing.

Compared with larger industrial blown film lines, the EX-HM Series focuses on compact production requirements and narrower film widths. Its three screw diameter options allow customers to select a configuration according to their expected output and manufacturing needs.

Key Features

• Compact machine configuration: Designed for production facilities with limited floor space or relatively modest output requirements.
• Monolayer film production: Produces single-layer polyethylene film for T-shirt bags and other suitable packaging applications.
• Multiple material options: Supports LDPE, LLDPE, MDPE, and HDPE, subject to the selected resin grade and processing conditions.
• Three model configurations: EX-HM35, EX-HM45, and EX-HM50 offer different screw diameters and film widths.
• Thin-film capability: The reference film thickness range is 0.008–0.08 mm, depending on material, die configuration, and operating conditions.
• Flexible production planning: Can be specified according to target film dimensions, material characteristics, and downstream converting requirements.
• Suitable for bag manufacturing: Designed with T-shirt bag film as a principal application.
• Practical operation and maintenance: The equipment configuration can be selected to suit the customer's production workflow and operator requirements.

2. Technical Specifications

The following table presents the reference specifications for the EXTRUTEX EX-HM Series Mini Blown Film Line.

Technical note: Output and film dimensions are reference values. Actual production capacity and achievable film thickness depend on resin grade, formulation, die dimensions, cooling conditions, film width, operating speed, and other process parameters. Confirm the final configuration with EXTRUTEX before ordering.

3. Three Models for Different Production Requirements

EX-HM35 Mini Blown Film Line

The EX-HM35 is the entry-level model in the series, featuring a 35 mm screw diameter, a reference layflat film width of 350 mm, and an extrusion capacity of approximately 30 kg/h.

It is suitable for smaller production operations that require narrow polyethylene film, including selected T-shirt bag applications. Its compact configuration can also be considered by businesses entering blown film production or evaluating new film formulations.

EX-HM45 Mini Blown Film Line

The EX-HM45 features a 45 mm screw diameter, a reference layflat film width of 500 mm, and a nominal extrusion capacity of 45 kg/h.

This model provides a middle option for manufacturers who need more output and a wider film format than the EX-HM35. It can be configured for appropriate LDPE, LLDPE, MDPE, or HDPE grades according to the required film properties and production targets.

EX-HM50 Mini Blown Film Line

The EX-HM50 is the largest model in the mini series, with a 50 mm screw diameter, a reference layflat film width of 600 mm, and a nominal extrusion capacity of 60 kg/h.

It is intended for compact production facilities that require the widest film format and highest stated output within the EX-HM range. Final production performance should be evaluated against the customer's resin grade, film thickness, and required line speed.

4. Compatible Polyethylene Materials

The EX-HM Series is designed for processing four common polyethylene material categories. The most suitable grade depends on the required film strength, stiffness, flexibility, clarity, sealing performance, and bag design.

LDPE — Low-Density Polyethylene

LDPE is commonly used for flexible film products requiring softness, flexibility, and good processability. Depending on the selected grade and formulation, it may be suitable for bag films and other flexible packaging applications.

LLDPE — Linear Low-Density Polyethylene

LLDPE is frequently selected when film strength, toughness, and puncture resistance are important. It may be used alone or blended with other suitable polyethylene grades, provided the formulation and extrusion conditions are appropriate for the equipment.

MDPE — Medium-Density Polyethylene

MDPE can provide a balance of stiffness, toughness, and other mechanical properties. Its suitability for a particular bag application depends on the grade, film design, and required performance.

HDPE — High-Density Polyethylene

HDPE is widely used for relatively thin, lightweight film products, including many T-shirt shopping bags. Compared with LDPE, HDPE film is generally stiffer and can provide useful strength at low thicknesses when the grade and processing conditions are properly selected.

Material selection recommendation: Not every polyethylene grade behaves identically during extrusion. Before production, confirm the melt flow characteristics, processing temperature range, formulation, and intended film properties with the resin supplier and EXTRUTEX.

5. Blown Film Extrusion Process

The EX-HM Series uses the conventional blown film extrusion process. The line configuration and individual components can vary according to the final machine specification.

1. Material feeding: Polyethylene pellets are supplied to the extruder hopper.
2. Melting and plasticizing: The rotating screw conveys, melts, and mixes the polymer inside the heated barrel.
3. Melt delivery: The homogeneous melt is conveyed toward the circular film die.
4. Film bubble formation: The melt exits the die and forms a tubular film bubble, which is inflated with air to achieve the required dimensions.
5. Cooling and stabilization: Cooling air helps solidify the film and stabilize the bubble during production.
6. Haul-off: The film is drawn upward and guided through the haul-off assembly.
7. Flattening and winding: The tubular film is collapsed and wound into rolls for storage or subsequent bag converting.

Stable production requires coordinated control of extrusion output, melt temperature, bubble inflation, cooling, haul-off speed, and winding tension. Operators should optimize these parameters for each resin grade and target film thickness.

6. Main Application: T-Shirt Bag Film

The primary application of the EXTRUTEX EX-HM Series is polyethylene film for T-shirt bags, also known as vest-style shopping bags. The film is produced in rolls and then processed by a suitable bag-making machine to form the bag body, handles, and bottom seal.

Depending on material selection and film specifications, the line may also be considered for other narrow-format polyethylene film products.

Typical Applications

• T-shirt shopping bags
• Vest-style retail bags
• Lightweight carry bags
• General-purpose polyethylene bag film
• Selected small-format packaging film applications

The final suitability of the film depends on the required bag dimensions, load-bearing performance, film thickness, sealing method, and applicable local regulations.

7. Benefits for Small-Scale Film Manufacturers

A Compact Production Option

A mini blown film line can be useful when production requirements do not justify a larger extrusion system. The EX-HM Series provides three model sizes, allowing manufacturers to choose a configuration that better matches their planned production scale.

A Choice of Film Widths

With reference layflat widths of 350 mm, 500 mm, and 600 mm, the series offers options for different narrow-film requirements. Customers should confirm that the specified layflat width matches the downstream bag-making process.

Support for Common PE Grades

The ability to process suitable LDPE, LLDPE, MDPE, and HDPE grades gives manufacturers flexibility in selecting materials for different film properties. Actual material compatibility should be confirmed for the selected resin grade and machine configuration.

Production Capacity Options

The stated capacities range from approximately 30 kg/h to 60 kg/h. These figures are useful for preliminary equipment selection, but they should not be treated as guaranteed output under every combination of material, film width, and thickness.

Integration with Downstream Converting

Blown film production is normally one stage in a larger manufacturing process. The finished film rolls can be supplied to a compatible bag-making machine, subject to roll dimensions, film properties, and the converting machine's requirements.

8. How to Select the Right EX-HM Model

When choosing between the EX-HM35, EX-HM45, and EX-HM50, consider the following factors:

• Required film width: Match the layflat width to the planned bag design and downstream equipment.
• Target film thickness: Confirm the desired thickness and whether the selected resin can maintain stable film quality at that setting.
• Material type: Identify the exact LDPE, LLDPE, MDPE, or HDPE grade to be processed.
• Expected production volume: Compare daily or hourly production requirements with the machine's reference output.
• Bag-making equipment: Ensure the film roll dimensions and material properties are suitable for the converting line.
• Available installation space: Consider the complete line layout, including feeding, cooling, haul-off, winding, access, and maintenance clearance.
• Electrical and utility requirements: Confirm local power supply, installation conditions, and any required cooling or compressed-air facilities.
• Future expansion: Consider whether a larger model or additional downstream equipment may be needed as demand grows.

EXTRUTEX recommends confirming the intended material, film width, thickness, and production target before selecting the final machine configuration.

9. Installation, Operation, and Maintenance

Correct installation and routine maintenance are important for stable film quality and reliable equipment operation.

Before commissioning, ensure that the machine is installed on a suitable foundation and that electrical connections, grounding, heating circuits, cooling systems, and safety devices are checked by qualified personnel.

During operation, monitor melt temperature, motor load, bubble stability, film thickness, haul-off speed, and winding tension. Any abnormal noise, vibration, temperature variation, or unstable film bubble should be investigated according to the machine operating instructions.

Regular maintenance should include inspection and cleaning of suitable material-contact components, checks of heating elements and temperature sensors, examination of drive components, and inspection of cooling and winding systems. Cleaning procedures should follow the manufacturer's recommendations to avoid damaging the screw, barrel, die, or other precision components.

Operators must follow applicable machine-safety procedures, particularly around hot surfaces, rotating equipment, nip points, and moving film. Installation, operation, cleaning, and maintenance should be carried out by trained personnel.

10. Frequently Asked Questions

What is the EXTRUTEX EX-HM Series?

The EX-HM Series is a compact monolayer blown film extrusion line designed for polyethylene film production, particularly film used to manufacture T-shirt bags.

Which materials can the EX-HM Series process?

The stated compatible material categories are LDPE, LLDPE, MDPE, and HDPE. Confirm the specific resin grade and processing requirements before production.

What is the output capacity?

The reference capacities are 30 kg/h for EX-HM35, 45 kg/h for EX-HM45, and 60 kg/h for EX-HM50. Actual output depends on the material, film dimensions, thickness, and operating conditions.

What film widths are available?

The reference layflat widths are 350 mm, 500 mm, and 600 mm for EX-HM35, EX-HM45, and EX-HM50, respectively.

What film thickness can the machine produce?

The supplied reference range is 0.008–0.08 mm. The practical range depends on the selected resin, die configuration, film width, cooling, and process stability. Confirm the required thickness with EXTRUTEX.

Can the line produce T-shirt bags directly?

The blown film line produces film rolls. A suitable downstream bag-making machine is normally required to convert those rolls into finished T-shirt bags.

How can I choose the correct model?

Start with the target film width, thickness, resin grade, and required output. Then confirm the downstream bag-making requirements and installation conditions before finalizing the model.

11. Request a Quotation

EXTRUTEX provides blown film extrusion solutions for different production scales and polyethylene film applications. The EX-HM Series is intended for customers seeking a compact machine for narrow-format monolayer film production.

To help us recommend the right configuration, please provide:

• Preferred model: EX-HM35, EX-HM45, or EX-HM50
• Material: LDPE, LLDPE, MDPE, HDPE, or a specified blend
• Required film layflat width
• Target film thickness
• Expected production capacity
• Intended bag type and downstream equipment
• Country and electrical power requirements

Contact EXTRUTEX to discuss your application, confirm the technical configuration, and request a quotation for the EX-HM Series Mini HDPE/LDPE Blown Film Line.

EXTRUTEX — Austrian design, with manufacturing in China and design, laboratory, and R&D capabilities in Austria.