Generator is a machine that converts the mechanical energy into the electrical energy. It is composed of a circuit that generates a specified wave form. Generators are manufactured in a wide range of sizes ranging from a few watts to huge central station generators which provide 1000 MW or may be more. The small scale generator sets are usually known as gensets and perhaps the best options both technologically and commercially for energy generation. The gensets are widely used around the globe. They are seldom used to primary power. But at times they are also used to provide back-up power in areas that are off the grid or do not have sufficient electricity. The generators normally can be bought at low prices, but there overhead maintenance and running costs are very high. This is due to the fact that you have to purchase fuel and regular upkeep is also essential. As a matter of fact if the maintenance is not proper, your generator set may break down early. Apart from gasoline and diesel, other fuels that can be used for generators are propane, kerosene and biofuels.

There are numerous types of welding machines and equipment. For example Ultrasonic welding machine (used for multiple functions in different industries), plastic welding machines (used for joining the thermoplastics), welding holders that are fully insulated, welding rotators that are used for the pipeline and fabrication industry, welding rectifiers which are used for arc cutting by any kind of electrode, etc.