Mucking Road Header

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Description:
The mucking road header is also called boom-type roadheader, road header machine, or just header machine. It is a kind of excavating equipment made up of boom-mounted cutting header, loading device usually involving a conveyor, and a crawler traveling track to move the entire machine forward into the rock face.

Applications:
The mucking road header is widely utilized in the excavation of underground mining and tunneling both for mining and municipal government projects. It can also be used to build wine caves and cave homes such as those found in the Coober Pedy area of Australia. Besides, it has become an alternative to full-face tunnel boring machine in various configurations and sizes without disturbing the surrounding rock face.

Features:
1. In this mucking road loader, the conventional drill-and-blast method has been replaced by the road header in soft rock excavation.
2. As the boom-type roadheader has the capacity to excavate and clear muck from the tunnel simultaneously, it is more flexible and versatile in soft to medium rock excavation. It completes the work with additional ground support in the form of rock bolting, shotcrete, steel supports, or a combination thereof.
3. The mucking roadheader or road header machine, as a mechanical excavation facility, can also cut a series of cross-sections, change diameters and directions quickly, and move towards and away from the face by using its own power.
4. This roadheader is available in built-in safety features, such as a water-jet spray.
5. The heaviest mucking roadheader weighs as much as 120 tons with the maximum power that generated from the cutterhead topping of 500kW.

Mucking Roadheader Parameters:

Drum cutter parameters
Cutting hardness 4f
No. of picks 40
Cutting force 20800N
Recommended rotation speed 85r/min
Hanging belt conveyor
Power of electric roller 11kw
Belt speed 1.6m./s
Belt width 800mm
Diameter of carrier roller 89mm
Angle of upper carrier rollers 30°
Overall dimension (Width × Height) 6500×1040mm
Weight 2000kg

Main Overall Dimensions:

ZWY-180/79L Road header mucking loader
Crawler contacting ground length 2827mm
Crawler inner width 1350mm(Variable)
Crawler plate width 500/600mm
Ground clearance 380mm(Variable)
Conveyor inner width 780mm
Dimensions during operating Length 8516mm
Width 2350mm
Height 2500mm
Dimensions during operating Length 9790mm
Width 2350mm
Height 2764mm

Working Range:

ZWY-180/79L Road header mucking loader
A Cutting width 5800mm
B Cutting distance(from dozer blade) 2000mm
C Cutting height 4100mm
D Cutting depth below ground level 400mm
E Dumping height 2150mm
F Max. boom angle ±55°
Adaptive tunnel dimension(Width×Height) ≥3.8×3.8m
Angle of Hanging belt conveyor +41°≥α≤-35°

Functional Data:

General power 79kw
Weight 21580kg
Traveling speed 0.6±5%m/s
Scraper chain Double chains double motors
Adaptive turning radius ≤25°
Minimum turning radius ≥8m
Ground pressure ≤0.07Mpa
Steering Hydraulic
Speed of scraper chain 44m/min
Volume of hydraulic tank 400L
Maximum working pressure 32Mpa
Hydraulic pump Plunger pump×2+gear pump×2
Walking hydraulic motor Radial plunger motor×2
Conveyor hydraulic Radial plunger motor×2

Note: The above parameters are only for reference. They may be different from the actual parameters.