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Andy’s Mobile Mechanical & Welding Service is a Brisbane based engineering firm specialising in steel fabrication, earthmoving equipment and quarry equipment.

We are an engineering service operating out of the Logan City area, but servicing South-East Queensland. The service includes repairs, design, and modifications of earthmoving and mining machinery from crawler tractors to screening plants and trucks.

Our experience and qualification has been built over the last 35 years. This experience not only offers you a very professional service but piece of mind that your equipment is in good hands.

Availability – You Ring we Fix We can repair your equipment on site – or come to you getting your equipment back making money for you fast.  0418 156 632



Our Prices Are Very Competitive


1. NASCAR — Long before the rubber hits the road, roughly 950 man-hours are spent on welding and fabrication for each race car. Hundreds of parts are hand-cut, welded and machined, from the chassis and suspension to the drivetrain.

2. In 1961, General Motors installed the first industrial robot in history, the Unimate. Featuring a motorized arm that weighed more than two tons, the Unimate performed spot welds by following step-by-step commands stored on a magnetic drum.

3. Which famous comedian has a large antique car and motorcycle collection and employs welders regularly?
Jay Leno! His large collection includes models from the early 1900s to modern vehicles.

4. Explosion welding is a powerful welding process that can accomplish what many other welding methods can’t—it can join nearly every kind of metal together, even the most highly dissimilar ones.

5. Welding in space was first attempted in 1969 by Russian cosmonauts. Today, advances in welding technology have made it essential for projects like the construction of the International Space Station.

6. President Roosevelt, in a letter to Prime Minister Winston Churchill, boasted about the discovery of new welding techniques that enabled America to build ships with a speed unequaled in the history of shipbuilding.

7. The first car made with an entirely plastic body was assembled using ultrasonic welding. Even though plastic cars did not catch on, ultrasonic welding did. Ultrasonic plastic welding is an example of a friction welding process, which creates energy through high-intensity acoustic sounds that cause plastic pieces to vibrate together and form a bond.

8. Did you know that if two pieces of metal touch in space, they become permanently stuck together? This may sound unbelievable, but it is true. Two pieces of metal without any coating on them will form into one piece in the vacuum of space. This doesn’t happen on Earth because the atmosphere puts a layer of oxidized material between the surfaces.

9. More than 50% of U.S. products require welding. Do you know which of the following products rely on welding?

  • Race cars
  • Bridges
  • Ships
  • Computers
  • Medical devices
  • Oil rigs
  • Farm equipment
  • Cell phones
  • Scooters
  • MP3 players

Answer: All of them 

10. What is a “fume plume”?
It is the visible column of fume that rises directly from the spot of welding or cutting.

11. The current record for the world’s deepest underwater dry weld, which is carried out in a chamber sealed around the structure to be welded, was set by Global Industries in 1990, at 1,075 ft. deep. But that is only half as deep as the world’s record wet weld, set by the U.S. Navy in 2005, at 2,000 ft. deep. Wet welding is performed underwater, directly exposed to the watery environment.

12. The earliest recorded welds occured in 3,500 B.C., the Bronze-Age. Pictures of welders and their ancient tools have been discovered in long-sealed Egyptian tombs!