The economical vertical-shaft DAV brush-cutters are vegetation control units designed for use on an articulating arm mounted on carriers such as excavators and backhoes.
These industrial hydraulic attachments are ideal for brush cutting applications where chipping is not required (land clearing in uninhabited areas, forest road maintenance, recreational trail maintenance, and transmission line and pipeline right-of-way maintenance).
DAV brush-cutters use vertical-shaft brush cutting disc technology with two freely rotating knives , a design that provides considerable advantages.
Each DAV model is structurally reinforced for intensive use, and includes a patented disc protector, a device that helps prevent the brush cutting blades from hitting rocks or other hard objects on the ground.
Industrial Land Clearing
Forest Fire Prevention
Road Development and Maintenance
Development and Maintenance of Transmission Lines
Development and Maintenance of Pipelines
DAV Technical Advantages
For detailed informations please contact your representative DENIS CIMAF.
- 1 - Low acquisition and operating costs , since the DAV cutting technology is simpler than that used in DAH
Low operating cost
The vertical shaft brush-cutter disc technology used by DENIS CIMAF is not a complicated system. A motor, with its vertically positioned axis, drives a disc with its two attached free swinging blades. Seals are used to reduce oil leakage, joints to reduce mechanical shock, and bearings to ease shaft rotation. With its limited number of simple parts, this technology is generally less costly than horizontal axis DAH and DAF technologies, although the latter offer greater efficiency and productivity.
- 2 - Low weight units for installation on smaller carriers
With its limited number of components and minimal size, DAV models are lighter than the DAH models. Where the smallest DAH model normally requires at least a 7 to 8 tonne excavator, the smallest DAV model functions on an excavator half the size.
- 3 - Easy maintenance owing to smaller number of parts
Vertical-Shaft Brushcutting Disc Technology
- DAV brush-cutters and DTN brushcutter-mowers use vertical-shaft disc technology, which thanks to its relatively simple design and limited number of parts, delivers many technical benefits including:
- Lower acquisition and operating costs compared to products using the horizontal-shaft rotor technology;
- Lower weight units;
- Straightforward maintenance and repair procedures, owing to smaller number of parts.
Vertical-shaft discs are however more limited in terms of the types of operations in which they may be used. Attachments with this technology do not chip vegetation during brush-cutting operations. They simply cut it, leaving larger pieces of wood on the ground. Projects that require a nicer finish will thus take longer to complete. When used on excavators, debris is deflected sideways but cannot be entirely eliminated, and can in fact be deflected at great speed over long distances. It is not therefore recommended using these units near roads or inhabited areas.
When used under appropriate conditions, products using this technology are incredibly robust and easy to manoeuvre. They are worthwhile alternatives when acquisition and operating costs are major constraints.
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