Heat Exchanger Steel Pipe Making Machine , Roll Forming Equipment

16mm heat exchanger steel tube, copper coated steel tube mill machine

Product Overview

The Heat Exchanger Steel Pipe Making Machine is a high-frequency welded tube mill designed for small diameter precision steel tube production. It is especially suitable for heat exchanger tubes, copper coated steel tubes, precision tubes, furniture tubes, appliance tubes and other small round tube applications.

This machine is based on the ZY-16 steel pipe making machine model, covering round tube outer diameter from 7.6 mm to 16 mm, wall thickness from 0.3 mm to 1.0 mm, and tube welding speed up to 120 m/min.

The main raw materials include cold rolled steel and galvanized steel. According to the final application, the line can also be matched with suitable finishing or surface treatment equipment for copper coated steel tube production.

For heat exchanger tube production, the key requirement is not only high speed. The tube must have stable outer diameter, good roundness, smooth weld seam, consistent wall thickness and clean surface quality.

Problem

Many buyers looking for heat exchanger tube production equipment face one practical problem: small tubes are difficult to produce with stable precision.

When the tube diameter is only 7.6 mm to 16 mm, even a small forming error can affect the final tube shape. If the strip feeding is unstable, the weld seam position may shift. If the welding and sizing sections are not accurate enough, the finished tube may have poor roundness, rough weld seam or unstable dimension.

For heat exchanger tube, copper coated steel tube and precision small tube production, these problems can directly affect downstream assembly, heat transfer performance, bending quality and customer acceptance.

So the buyer does not only need a steel pipe making machine. The buyer needs a complete small tube production solution with stable forming, precise high frequency welding, accurate sizing and reliable cutting.

Cause

The main cause is that heat exchanger tube production requires tighter control than general structural tube production.

Small diameter tubes have less tolerance space during forming and welding. The strip edge must be guided accurately before welding. The HF welding power, squeeze roll pressure and cooling control must be matched with tube size and wall thickness.

If the rollers are not designed correctly, the tube may become oval. If the sizing section is unstable, the final outer diameter may not meet the required specification. If the flying saw is not accurate, the fixed-length tube may have poor cutting quality.

Another common cause is insufficient production experience. Steel tube production needs both qualified equipment and practical process know-how. Machine design, roller tooling, welding setting, strip material and operator adjustment all influence final tube quality.

Solution

The ZY-16 Heat Exchanger Steel Pipe Making Machine provides a complete high-frequency welded tube production line for small round tubes.

The standard production process includes:

Uncoiler → Coil End Butt Welding → Accumulator → Forming Machine → High Frequency Welding → Weld Seam Removing → Cooling → Sizing → Turkey Head Straightening → Flying Saw Cutting → Run-Out Table → Inspection

At the beginning of production, the coil is loaded onto the uncoiler. The coil ends are butt-welded to support continuous production. The strip is stored in the accumulator and then pulled forward at a stable speed.

In the forming section, the strip is gradually formed into an open pipe shape. After that, the high frequency welder heats the strip edges and the squeeze rolls press them together to form a welded tube.

After welding, the tube is de-burred, cooled, shaped and sized. The turkey head device helps improve tube straightness before the flying saw cuts the tube to fixed length.

This solution helps customers produce small diameter heat exchanger tubes with better dimensional stability, smoother weld seam and more reliable production speed.

Specifications

Main Technical Data of Heat Exchanger Steel Pipe Making Machine

Steel Pipe Making Machine Model Range

The above model data is for reference. The final production range and technical configuration can be adjusted according to tube size, wall thickness, raw material, production speed, factory layout and final product standard.

Application

Heat Exchanger Tube Production

This machine is suitable for small diameter heat exchanger steel tube production. Heat exchanger tubes usually require stable size, smooth surface and good roundness.

The ZY-16 model is suitable for tube sizes from 7.6 mm to 16 mm, which matches many small tube heat exchange applications.

Copper Coated Steel Tube Production

The line can be used as the base tube production equipment for copper coated steel tube applications.

For this application, the tube mill produces the welded steel tube first. The copper coating or surface treatment process should be configured according to the final product requirement.

Precision Steel Tube Production

Precision tube production needs stable forming and accurate sizing.

The machine can be used for small precision tubes applied in appliances, industrial parts, furniture, light structures and other products requiring stable dimensions.

Automotive and Appliance Tube

Small welded tubes are also used in automotive parts, household appliances and metal assemblies.

For these applications, the buyer should focus on weld seam quality, cutting accuracy and continuous production stability.

Furniture and General Small Tube

The machine can produce small round tubes for furniture frames, decorative products, light supports and general fabrication.

For these products, high production speed and stable surface quality are important.

How It Works

1. Coil Loading

The steel coil is loaded onto the uncoiler. Cold rolled steel or galvanized steel strip is prepared for continuous feeding.

Stable coil loading helps reduce strip shaking and improves feeding accuracy.

2. Coil End Butt Welding

The end of one coil is butt-welded with the next coil.

This helps reduce downtime and supports continuous tube production.

3. Accumulation

The accumulator stores strip material before the forming section.

When the operator changes coils, the accumulator keeps feeding the forming machine continuously.

4. Roll Forming

The strip is gradually formed into an open pipe shape through forming rollers.

For small diameter tube production, roller precision is very important because even small deviation may affect final tube roundness.

5. High Frequency Welding

The HF welder heats the strip edges. The squeeze rolls press the edges together to form a welded tube.

Correct welding power and squeeze pressure help improve weld seam stability.

6. De-Burring and Cooling

After welding, the outer weld bead is removed. The tube is then cooled before sizing.

This helps prepare the tube for accurate sizing and surface control.

7. Sizing and Straightening

The sizing section adjusts the tube to the required outer diameter. The turkey head device helps improve tube straightness.

This step is especially important for heat exchanger tube and precision tube production.

8. Flying Saw Cutting and Inspection

The flying saw cuts the tube to fixed length without stopping the line.

After cutting, the finished tubes are delivered to the run-out table for inspection and collection.

How To Choose

Choose by Tube Diameter

If your required round tube outer diameter is between 7.6 mm and 16 mm, the ZY-16 model is the suitable choice.

If your maximum tube diameter is larger than 16 mm, models such as ZY-20, ZY-32 or ZY-45 should be considered.

Choose by Wall Thickness

The ZY-16 model supports wall thickness from 0.3 mm to 1.0 mm.

For thicker tubes, a stronger model with larger forming capacity should be selected.

Choose by Final Application

For heat exchanger tube, dimensional accuracy and surface quality are important.

For furniture tube or general small tube, production speed and low maintenance cost may be more important. For copper coated tube, the surface treatment process should also be considered.

Choose by Raw Material

Cold rolled steel is suitable for products requiring better surface quality and dimensional stability.

Galvanized steel can be used when corrosion resistance is required. The material strength and coating condition should be confirmed before roller and welding design.

Choose by Production Speed

The ZY-16 machine can reach up to 120 m/min under suitable production conditions.

However, the actual speed depends on tube size, wall thickness, material quality, welding stability and cutting requirement.

Choose by Supplier Experience

Steel tube production needs both equipment and production know-how.

Zhongyue Metallurgy Equipment Technology has exported steel pipe making machines to more than 70 countries since 2006, covering Asia, North America, South America, Europe, the Middle East, Southeast Asia and Africa.

Customers can receive not only machine supply, but also technical support for process design, roller tooling, installation, commissioning and operator training.

FAQ

1. What tube size can this heat exchanger steel pipe making machine produce?

The ZY-16 model can produce round tubes with an outer diameter from 7.6 mm to 16 mm and wall thickness from 0.3 mm to 1.0 mm.

It is suitable for small diameter heat exchanger tubes, precision tubes and copper coated steel tube base pipe production.

2. What is the maximum welding speed?

The tube welding speed can reach up to 120 m/min.

The actual production speed depends on tube size, wall thickness, raw material, welding condition and cutting requirement.

3. Can this machine produce copper coated steel tubes?

The machine can produce the welded steel tube used as the base tube for copper coated steel tube production.

If the final product requires copper coating, suitable surface treatment or coating equipment should be added according to the customer’s process requirement.

4. What raw materials can be used?

The standard raw materials are cold rolled steel and galvanized steel.

Before final machine design, the buyer should confirm strip thickness, width, steel grade, coil weight and surface requirement.

5. Why is roller design important for small tube production?

Small diameter tubes require more accurate forming control.

If the rollers are not designed correctly, the tube may have poor roundness, unstable weld seam position or sizing deviation. Good roller design helps improve tube quality and reduce production adjustment time.

6. What information is needed before quotation?

The buyer should provide tube diameter range, wall thickness range, raw material, coil size, required tube length, production speed, final application and factory layout.

If the tube is used for heat exchanger or copper coated applications, the buyer should also provide surface quality and inspection requirements.