Why Are Indian Heat Exchanger and Automotive Industries Investing in LG30 Cold Rolling Lines?

India’s manufacturing sectors are undergoing a shift toward precision, durability, and international quality compliance. In particular, the heat exchanger and automotive industries are turning to one solution for precision tube production: the LG30 Cold Rolling Tube Mill.

From fuel and brake lines to condenser coils and EGR systems, these industries demand tubes that are:

• Highly accurate in dimension

• Smooth in surface finish

• Strong in structure

• Efficient to produce in large volumes

The LG30 cold rolling line has proven to be the ideal match.

✅ 1. Perfect Fit for Mid-Size Precision Tubes

The LG30 cold rolling machine is specifically designed for tubes with:

• Outer Diameter: 15–45mm

• Wall Thickness: 1.2–5mm
  This range perfectly covers the requirements for:

• Automotive fuel and hydraulic lines

• Air conditioning heat exchanger tubes

• Engine cooling systems and EV battery cooling pipes

✅ 2. Smooth Finish with No Polishing Needed

For heat exchanger manufacturers, internal and external smoothness is essential to ensure:

• High thermal efficiency

• Low fluid resistance

• Seamless bending and brazing compatibility

LG30 offers Ra ≤ 0.8μm surface finish, helping eliminate the need for secondary polishing or chemical cleaning.

✅ 3. Dimensional Consistency = Assembly Compatibility

In the automotive industry, even 0.1mm deviation can cause failure in assembly or leaks in pressurized systems.
LG30 ensures:

• ±0.05mm OD tolerance

• Stable wall thickness throughout the tube

• Better concentricity and straightness

This results in fewer rejections and faster assembly line integration.

✅ 4. Smart Investment for Scalable Production

Compared to traditional drawbenches or hot rolling, LG30:

• Requires less energy

• Offers higher output speed

• Supports fully automated control via PLC + servo system

• Reduces manpower per shift

Indian manufacturers using LG30 report:

• 20–30% increase in production capacity

• Reduced cost per unit

• Faster return on investment (<18 months)

✅ 5. Proven Performance in India

From Pune to Chennai, our LG30 lines are already operating in tier-1 automotive suppliers and HVAC equipment plants, producing stainless steel, copper, and alloy tubing that meets:

• ASTM, DIN, and JIS standards

• OEM specifications for global vehicle platforms

• Export compliance to Europe, Southeast Asia, and the Middle East