Contractors World |
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| Contractors World 2010 Volume 1 Issue 9 |
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 PAGE 33 
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World of Plant & Equipment New Ditch Witch MT12 MicroTrencher for fiber cable installation The new Ditch Witch MT12 MicroTrencher is specifically designed for fast and efficient installing of fibre-optic cable in urban Throughout the world, demand is increasing for faster broadband and telecommunications systems, necessitating an increase in the installation of highspeed fibre-optic cable for commercial and residential use. The trend today is for utility companies to put new cables underground to reduce the risk of cable damage due to the elements (e.g. storms and high winds) as well as to prevent theft - a growing problem in some areas that has effected copper cables particularly due to high scrap metal values. Overhead cabling is also unsightly but has been the preferred option in the past because of cost. Ditch Witch are trying to change this attitude by developing cost efficient solutions to enable in-ground installation. The MT12 is one example of this. Using specially designed and manufactured saw blades, the Ditch Witch MT12 cuts through asphalt to create the ideal trench for fibre-optic cable installation—from 19 mm (0.75 inches) to 32 mm (1.25 inches ) wide, and up to 305 mm (12 inches) deep—in one quick, efficient pass. The narrow, shallow trench created by the MT12 enables contractors to install fibre above existing utilities, so there is minimal disruption of surrounding infrastructure and roadways, which saves time and money. The MT12 offers a choice of four saw blades with widths. Each blade can be easily changed in the field with standard hand tools, reducing downtime.
The trenching depth is mechanically adjustable—from 152 mm (6 inches) to 305 mm (12 inches) in 25 mm (1 inch) increments. This helps the operator quickly set the depth to match job specifications and maintain a consistent depth for the entire length of the trench. The microtrencher can also be manually tilted 6º to the right or left, which helps the operator maintain a true vertical trench on uneven surfaces. Where it is necessary to cut a trench right next to and parallel to curbs and gutters, the MT12 saw is designed to hydraulically traverse 610 mm (24 inches) from the centre of the machine to the right. The customer can choose whether to run the vacuum excavator hoses in front of or to the rear of the trencher, depending on jobsite conditions. It can also be equipped with onboard chutes that deposit spoils along the side of the trench, for easy cleanup when not using the FX60 microtrenching vacuum system.
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| PAGE 33
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Contractors World Magazines are published by VVV Limited Publisher: Roger Lindley Page updated: 22-Oct-2010 |
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The blades feature conical bits that can be replaced in the field; a design that extends the life of the blade and reduces maintenance expense. 
The MT12 MicroTrencher is not only for installing cabling. It can also be used for other roadway applications such as cutting expansion joints, utility repair (e.g., sawing square sections of roadway prior to excavation), and maintenance (e.g., trimming the rugged edges of new layers of asphalt to make a clean shoulder).
