2. What Is an Automatic Tube Shrinking Machine 

An Automatic Tube Shrinking Machine reduces the outer diameter of a tube end by controlled mechanical forming. The process preserves tube wall integrity while delivering accurate dimensional results.

Unlike cutting or welding, tube shrinking does not sever the material. As a result, joint strength and sealing performance improve.

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3. How the Machine Works

The machine follows a clear and efficient workflow:

• Feed the tube automatically
• Position the tube end precisely
• Clamp the tube firmly
• Activate the shrinking dies
• Gradually reduce the tube diameter
• Release and discharge the finished tube

Because the system uses servo and PLC control, each shrinking cycle remains stable and repeatable.

4. Main Characteristics

1. Fully Automatic Operation

Continuous operation with almost no manual operation.

2. High-Precision Shrinking Control

Uniform diameter reduction through servo-driven forming.

3. Smooth and Crack-Free Forming

The shrinking process preserves the tube surface.

4. Adjustable Shrinking Range

Easy adjustment of the required final diameter.

5. Strong Clamping System

Eliminates tube movement during forming with rigid clamping.

6. Multi-Die Configuration

Allows for both one-step and multi-step shrinking.

7. Compact and Rigid Structure

Machine supports long-term industrial operation.

5. Technical Specifications

6. Features

• Automated operation increases production
• Accurate diameter control makes the assembly uniform
• Smooth forming reduces secondary processing work
• No welding and cutting keeps the tube’s original strength
• Low labor cost for operation
• Stable performance to ensure large-scale production
• Easy to adapt to forming or welding line
• Touchscreen operation for convenient use
• Long service life, low maintenance cost
• Fit for the continuous production lines

Automatic Tube Shrinking Machine can help to increase the quality and efficiency of tube production in different industries.

7. Industries

This shrinking machine can be applied to different industries:

• HVAC or refrigeration pipes and tubes
• Automotive exhaust and fluid system pipes
• Heat exchanger tube welding
• Furniture and construction structure tube joint
• Home appliance piping joint
• Industrial fluid piping
• Medical or precision tube welding

Nanjing Bangwin Machine has the tube shrinking solution for all these.

8. Selecting the Nanjing Bangwin Machine

Nanjing Bangwin Machine is a professional manufacturer of automatic tube processing equipment. Automatic tube shrinking machines we provide:

• High forming precision
• Stable and repeatable operation
• Custom mold and die design
• Simple equipment integration to the production line
• Professional technical support and service

More solutions: https://bangwinmachine.com/

9. FAQ

Q1: What is an Automatic Tube Shrinking Machine?

1. It reduces the tube end diameter accurately for tight fitting and assembly.

Q2: Does the tube shrinking machine affect the material strength?

1. No. The forming process does not cut or abrade material and does not affect continuity or material strength.

Q3: Can it shrink tubes made of different materials?

1. Yes. The machine supports steel, stainless steel, copper and aluminum tubes.

Q4: Does Nanjing Bangwin Machine provide customization?

1. Yes, we customize the shrinking range, tooling, and automation level.

Q5: Can this machine be integrated with other tube machines?

1. Yes, the tube shrinking machine can be easily integrated with tube cutting, tube welding, tube forming systems, etc.