EGR Cooler Stainless Steel Tube Twisting Machine

Spiral Twisted Tubes in EGR Coolers

Bundles of stainless steel corrugated spiral twisting pipes are used inside EGR coolers. Spiral twisted tubes improve vortex flow and overall heat exchanger performance.

Performance Advantages

Spiral twisted pipes help to:

• Increase heat transfer efficiency

• Reduce pressure drops

• Expand heat transfer surface area

• Eliminate damaging vibrations

• Reduce dead spots from accumulated fouling

Wide Applications

These tubes are widely used in:

• Shell and tube condensers

• Coaxial tube-in-tube condensers

• Heat pumps and solar water heaters

• EGR coolers for heavy-duty trucks

• Flexible connectors for air conditioners

• Evaporative cooling towers and natural gas water heaters

• Floor heating, spas, hot tube heating, and more

Optimized Design Factors

Heat transfer efficiency depends on:

• Raw material, pipe diameter, wall thickness

• Spiral groove pitch, groove depth

• Number of grooves (leads or starts)
  Manufacturers optimize these factors for maximum performance.

Tube Twisting Machine Features

The tube twisting machine is ideal for producing spiral twisted pipes. Key features include:

• Groove leads: 3, 4, 6, or 8 (changeable by chuck heads)

• Groove depth: adjustable via forming roller height

• Groove pitch: adjustable via roller inclined angle

Servo-Driven Precision

Three servo motors and controllers drive the machine synchronously. This ensures stable linear, axial, and radial movements, producing consistent groove pitch and depth over unlimited pipe length.

CNC Flexibility

Equipped with CNC systems, the machine can produce continuous or disconnected spiral grooves on the same pipe.

Material Compatibility

The machine can process a variety of materials, including:

• Copper twisting tubes

• Aluminum twisting pipes

• Stainless steel twisting pipes

• Copper-nickel twisting pipes

• Titanium twisting pipes