Thermal Shrink Packaging Machines Archives

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High Speed Heat Shrink Tunnel Machines for Modern Packaging Operations

Streamline your production lines with engineer-grade thermal solutions. From shrink wrap for retail boxes to heavy duty bundling, we offer a wide range of machines compatible with all major shrink film types.

Certified: ISO 9001:2015 [View PDF]

Compliance: CE / UL [Verify]

Member: PMMI Association

Experience: 10 Years Manufacturing

Why Engineering Matters in Heat Shrink

A generic shrink wrap machine often fails to deliver consistent heat distribution. ALF PACK utilizes advanced thermodynamics to ensure your heat shrink finish is flawless, reducing film waste and energy costs.

Guide: Understanding Types of Shrink Tunnel

1. Hot Air Shrink vs. Radiant Heat

Choosing between a hot air shrink system (Convection) and radiant heat (Infrared) is vital.

Convection (Hot Air): Uses blower motors to circulate air. Ideal for standard shrink packaging as it heats the film evenly around complex shapes.
Radiant Heat: Uses line-of-sight energy. Often found in older or cheaper tunnels, but can cause “hot spots” if not carefully managed.

Integration Tip: Bar Sealers

Most of our tunnels are designed to pair seamlessly with an L-Bar or Side Bar Sealer. This combination creates a complete “Seal and Shrink” production line.

2. Application Specifics

Different products require different tunnel configurations:

Retail Boxes: Require high clarity POF film and gentle airflow.
Heat Tunnel for Shrink Sleeves: Essential for shrink labeling on containers. These tunnels often use steam or specific hot air zones to prevent label distortion.
Tamper Evident Bands: Used for safety seals on jars/pharmaceuticals. Requires a focused heat zone (Heat Gun style or narrow tunnel).
Heat Shrink Tunnel for Bottles: Usually requires a heavy duty conveyor and cooling fans to set the thick PE film rapidly.

Our Shrink Tunnel Machine Series

Browse our catalog of tunnel machine solutions tailored for speed and durability.

Automatic Heat Shrink Oven Wrapping Machine Heat Tunnel Shrink Tunnel Packing Machine

Shrink Tunnel

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BS-A450 Thermal Shrink Packing Machine

Bs-a450 Thermal Shrink Packing Machine

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BS-G450 Thermal Shrink Packaging Machine shrinking tunnel packager

Thermal Shrink Packing Machine

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BSE4535 Thermal Shrink Packaging Machine

Heat Shrink Machine

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BSE5038 Thermal Shrink Packaging Machine

Shrink Film Machine

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BSE5040A PE film Heat Shrink packaging machine / shrink tunnel

Pe Film Heat Shrink Packaging Machine

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BSE6040 Thermal Shrink Tunnel packaging machine

Thermal Shrink Tunnel

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BSE6040A PE film heat shrink tunnel wrapping packaging machine

Pe Film Heat Shrink Packaging Machine

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DSA4020 Thermal Shrink Packaging Machine

Thermal Shrink Packaging Machine

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DSA4525 Packaging Shrink tunnel machine

Packaging Shrink Tunnel Wrapping Machine

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DSA6035 Packaging Shrink tunnel machine

Packaging Shrink Tunnel Wrapping Machine

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DSD4520 Thermal Shrink Packaging Machine shrinking tunnel packager

Shrink Tunnel

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From Blueprint to Production: Our Workflow

We don’t just sell machines; we engineer the shrinking process.

Bottle Analysis

Send us your bottle & label samples. We analyze the geometry to determine the required steam zoning.

Lab Testing

We run your samples in our test lab. You receive a video report and the finished physical samples.

Manufacturing

Machine assembly in our Suzhou plant (ISO 9001 controlled). Lead time: 15-20 days.

FAT (Factory Acceptance)

You (or a 3rd party) verify the machine running at full speed via video call or on-site visit.

Global Install

We ship securely. Our engineers are available for overseas setup and staff training.

See Our Machines in Action

Watch how does Pe Film Heat Shrink Pack Machine work

A PE Film Heat Shrink Pack Machine works by wrapping products in polyethylene (PE) shrink film and then applying controlled heat so the film shrinks tightly around the items, forming a secure and protective package.

Technical Specifications & Compatibility

Choosing the right technology for your material (PVC/PETG/OPS).

Film Type	Application	Recommended Tunnel
POF Shrink Film	Retail packaging, food boxes, toys	DSA-4020 / DSD-Series
PET / OPS Sleeves	Heat tunnel for shrink sleeves (Labels)	Steam Tunnel or DSD-Series (with sleeve kit)
PE Film	Multipacks, Heat shrink tunnel for bottles	PE-6040 Heavy Duty
PVC Bands	Tamper evident neck bands	Narrow Heat Tunnels / Heat Guns

Success Stories (Case Studies)

Answers from our technical team.

★★★★★

Challenge: New curved juice bottle had 20% reject rate with old heat tunnel.
Solution: Installed ZBS-83A Steam Tunnel.
Result: “Zero distortion labels and increased speed by 40%. The ALF engineer stayed for 3 days to train our staff.”

zevia Drinks USA

★★★★★

Challenge: Needed high-speed tamper bands for pharma line.
Result: “The BSS-1538D was easy to integrate. John from ALF provided excellent video support during setup.”

DoughGirl UK

Engineering FAQ

Answers from our technical team.

🔧 Technical Questions

How do I prevent water spots on clear labels?

Water spots occur when wet steam hits the bottle. The ZBS series includes a Steam-Water Separator at the inlet to ensure “dry steam.” Additionally, we recommend maintaining stable boiler pressure (0.3MPa) to prevent condensation surges.

Can I use one machine for different bottle sizes?

Yes. The steam spray bars are adjustable in height, width, and angle. You can switch from a 300ml round bottle to a 1L square bottle in about 10-15 minutes without needing tools. We provide position rulers for quick repeatability.

What is the consumption of steam?

For the ZBS-83A standard model, steam consumption is approximately 25-35 kg/hour depending on the speed. We recommend a 24KW electric steam generator for dedicated use.

Does it work with empty bottles?

Yes, but shrinking on empty plastic bottles requires precise temperature control to avoid deforming the bottle itself. Our tunnels have a “Low-Temp Mode” specifically for empty PET bottles.

📦 Shipping & Service

Do you provide installation in the USA/Europe?

Yes. We have visa-ready engineers who can travel globally for installation and commissioning (7-10 days typically). For smaller machines, many clients opt for our detailed video installation guide to save costs.

What is the lead time for manufacturing?

Standard models (ZBS-83A) are often in stock or require 10-15 days. Customized high-speed lines (DZBS-1135) typically require 25-30 working days for production and FAT testing.

How do you handle spare parts?

Every machine ships with a “2-Year Spare Parts Kit” (including heaters, gaskets, valves). For urgent needs, we ship via DHL/FedEx International Priority, reaching most countries in 3-5 days.

Can I see the machine running before I buy?

Absolutely. We encourage you to send us 20-30 sample bottles. We will film a high-res video of the shrinking process specifically for your product and send the physical results back to you for inspection.

Technical Reviewer

Chen Wei (Senior Packaging Engineer)

“Integrating the right heat tunnel is critical for an efficient packaging process. We design our airflow systems to prevent ‘dog ears’ and ensure consistent results on every cycle.”

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