Equipment rebuilds – giving machines a second life

Sandvik Mining sees a machine whose vital components are failing and reaching the end of their life as an opportunity, a chance to rebuild the equipment and bring it back to a state in which it is once again operating in a productive, reliable and economical way. These vital components may include an engine, axles or hydraulic system for example, which could potentially become a financial burden in terms of machine downtime, repair work and lost productivity.

Sandvik has rebuild capabilities in workshops worldwide, offering rebuild services to customers on all continents. A simplified explanation of the process involved in rebuilds is described below:

  • Customer requests a machine rebuild
  • The machine is assessed by Sandvik to determine whether a rebuild is the best option
  • If so, the machine is decommissioned, cleaned and disassembled in a Sandvik workshop
  • During the cleaning process the handling of oil and its separation is managed in a responsible way.
  • Vital components are rebuilt in line with OEM standards and all parts that meet quality requirements are reused.
    Examples of these are:
    • Old frames, which can be crack tested, straightened, machined and reused in favour of replacing them with new frames
    • Engine blocks, housings for torque convertors, transmission and axles as well as cylinder barrels are all components that can also be reused
  • The machine is re-assembled, re-commissioned and tested before being returned to the customer for operation

There are many benefits and advantages of rebuilding a piece of equipment, both financially and ecologically. Rebuilds can decrease the cost of operating a machine as they can help it to regain its productivity and reliability levels.

The environmental benefits are many; some of which are listed in the table:

Environmental benefit Benefit explained
Reuse of vital components and parts As opposed to investing in new components and parts, a machine’s life can be extended through the reuse of those already available
Responsible disposal of scrapped parts Any parts that do not meet quality requirements are disposed of in an environmentally responsible way. For example many metals and plastics are recycled
Rebuilt machines can lower fuel consumption A rebuilt machine with a well-functioning and calibrated powertrain is more likely to consume less fuel than an old, fatigued and malfunctioning powertrain
Reduction in the use of consumables and prevention of leakages Rebuilt and upgraded components that function well can reduce the use of consumables such as hydraulic fluids and grease. An old component may have cracks or openings in its seals increasing the risk of fluid (e.g. oil) leakages
Reduced transportation needs A machine rebuild is usually carried out in a location that is close to a mine site, meaning that there is a reduction in the need for lengthy transportation of the equipment

An investment in a Sandvik rebuild can mean an investment in:

Your used piece of equipment can be transformed into a ‘nearly new’ operational machine that includes the latest technology upgrades
By rebuilding your machine, the reliability of its vital components are improved and there is a decrease in the risk of their failure and consequently machine downtime
A rebuild will ensure that all your equipment’s safety features are brought back to a high standard
Environmental impact is reduced through the reuse of components that meet the necessary quality standards

Case Study

Read about how a Sandvik DD420 drill rig operating in a Western Australian nickel mine underwent a major rebuild.

Here you can see the transformation of a machine from week one to week eleven of its rebuild

If you would like to find out more about Sandvik’s rebuild offering or any other Sandvik products, please contact us.