Welding is the process that joins metals together.

It is the process from which the most basic things such as outdoor table to the most marvelous modern creations such as skyscraper are made. At Lertvilai, we provide the complete Welding Industry Solution from the most basic items to the state-of-the-art equipment. Just tell us your what your requirements are and we will put everything together so that you spend less time on the little details and more time on the big picture.

Read About How We Have Helped
Our Customers Solve Their Problems

Welding Consumables

Our high quality consumables are approved by international class societies

such as ABS, BV, DNV-GL, LR, NK & TIS. Our in-house laboratory is equipped with extensive testing equipment to allow us to perform comprehensive tests from chemical elemental analysis to mechanical properties to hydrogen content determination.

Check Out Our Online eCommerce Website

We supply OTC DAIHEN and MILLER welding machines

that are the standard for reliability, quality and responsiveness. With long track record, OTC DAIHEN and MILLER welding machines have proved that they can handle a wide variety of demanding applications.

Welding Equipment
& Accessories

Service for
Sugar Mill,
Cement Plant
& Steel Mill

Drawing from over 30 years of experience in manufacturing of hard facing & stainless welding electrodes and flux-cored wire,

Thai Hansa Welding Co.. Ltd. offers the scheduled welding maintenance, emergency welding repair, and welding overhaul for any industry where abrasion. corrosion and heat crack is a concern. Utilizing on our expertise and proprietary designed product, we ensure that our service will give the most satisfied results.

Our specialized services include :


  • Fabricate & Repair Shredder Hammer
  • Fabricate & Repair Shredder Knife
  • Fabricate & Repair Grid Wall & Bar
  • Refurbish Shaft
  • Refurbish Crusher Shell
  • Refurbish Pinion Gear Surface
  • Rebuild Open Gear Teeth


  • Fabricate Chute
  • Fabricate Seprator Cone
  • Fabricate Wall for Vertical Mill
  • Fabricate Wear Resistance for Roller Press
  • Refurbish Vertical Mill
  • Refurbish Roller Press


  • Refurbish Work Roll
  • Refurbish Transport Roll
  • Refurbish Supporting Roll

To continually improve our quality and ensure your complete satisfaction,

we have the facility for research and after-sales service. We make sure that your solution is truly the best one.

Robot Welding & Welding Technology Center

After Sales Service Center