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Duty-Cycle RatingPower-supply rating depends on the type and thickness of the workpiece and the length of time it takes to deposit the longest weld on the thickest material. Duty cycle is the key factor to consider when selecting a power source. Once the engineer has determined the current and voltage needed to accomplish the weld, he then reviews duty cycle requirements.Duty cycle rating is the percentage of time during a 10-minute period a power supply can operate at rated output amperage without overheating. A 300 A machine at 60-percent-duty cycle can weld for six minutes at 300. A during a 10-minute period. Alter six minutes, the welder must rest the machine for the next four minutes to avoid overheating the unit.

From an emissions standpoint, Dieseltech insulation blankets are used to wrap catalysts and soot filters. This holds heat into these components reducing the time it takes for them to reach effective operating temperature from ambient following cold engine start. "This capability will become more important in the future as the new generation of emissions compliant engines with exhaust after treatment devices come into the market," Herman said.Other applications for Dieseltech products are in the fire pump industry. In such applications, all fire pumps are required to be blanketed/shielded by NFPA regulations. They are also used for fire protection in the forestry, agricultural and mining industries, where blankets reduce temperature of contact surface to below the ignition point of fluids, oils, 150cc sawdust and wood chips, etc.

The smaller motor Vermeer chippers, especially the gasoline--fueled models, are heavily reliant on the rental industry, according to Vermeer Tree Product Champion Mark Rieckhoff. "One of our bigger markets is rental yards as well as golf courses and nurseries," said Rieckhoff. "The gas options make the smaller chippers more available to the residential homeowner who would be renting one.