Coolers and harnesses on machines like stone crushers and screeners, concrete pumps, air compressors and other off-road equipment are daily put to the test due to vibrations and external forces, and not least the fine stone dust in quarries and mines. With two new products for these industries, Volvo Penta aims at further improving engine uptime – and, eventually, minimising the total cost of ownership.
Improved cooling
Volvo Penta now presents newly developed, heavy-duty cooling packages for the Volvo Penta VE engines, specifically adapted for harsh and dusty workplaces. The heavy-duty coolers will in 2013 be available on Volvo Penta D5, D7, D13 and D16 Stage IIIB/Tier 4i engines as well as D13 and D16 Stage II, which covers a range from 129 kW up to 565 kW. They will also be offered for the new Tier 4 Final range; D5, D8, D11, D13 and D16 in 2014.
“Our number one priority within this project was to develop a range of radiators suitable for stone crushers and screeners, but the same cooling package can also be used for concrete pumps, air compressors and other off-road construction equipment,” says Johanna Borgudd, Product Manager Industrial Engines.
The new side-by-side, heavy-duty cooling packages withstand cleaning with high-pressure water, and will be offered as suction- and pusher-type cooling system available for all heavy-duty radiator units.
The D5–D7 packages will be available as a kit including hoses, brackets for engine mounting, pipes, expansion tank, and mounting instructions. The D13–D16 packages will be available as a kit including hoses, pipes, expansion tank, and mounting instructions. The customer can also choose to get it transport-mounted from factory.
New, heavy-duty cable harnesses
Cabling harness is another engine component that is particularly exposed in e.g. stone crushers and mining equipment. The problem here is often the traditional manufacturing technique, where the tubing is being thread on the cables with the cable terminals mounted. This means that the tubing cannot be completely filled and that the cables, at high vibrations, move inside the tubing and are torn against the ribs of the tube walls. Stone dust penetrating the tubing increases the wear considerably, which potentially can result in worn-out cable insulation and malfunction.
Volvo Penta’s new, heavy-duty cable harnesses are based on a different manufacturing concept that is better adapted to these applications. Here, a split, synthetic polyester tubing (Roundit) is used as cable protection. The tubing, which has a smooth and soft inside, is simply wrapped around the cables. This means that the tubing is completely filled and that the cables inside the tubing are practically immobile, even at high vibrations.
Comparing standard cabling with this new, heavy-duty cabling shows that general qualities like e.g. wear and temperature resistance, are – on the whole – equal. The big difference is obviously the wear from the inside.
April 17, 2013
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For further information, please contact Åke Edman, AB Volvo Penta,
phone: +46 (0) 31 322 51 90, e-mail: ake.edman@volvo.com
