Highly efficient bottom discharge Handles boulders in sizes up to 1500 mm
Commodities: Rock, blasted rock Discharge rate: Up to 17 000 tonnes/h
Low-cost maintenance
UNDERGROUND WAGON FOR BLASTED ROCK Kiruna Wagon’s heavy-duty Rock Dumper represents more than 30 years of optimisation for narrow spaces and large fractions in the modern underground mines of northern Sweden. The wagon is designed for rolling bottom discharge and has an unloading capacity of up to 17,000 tonnes per hour. The RD is capable of handling drop-loaded boulders in sizes up to 1500 mm. To fit your needs, the wagon comes in four standard sizes: from 10 to 25 m³ loading volume. The RD offers extreme productivity with the highest possible transport and unloading capacity.
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World Class Ore Logistics
Effective bottom-dump system for large rock fractions and narrow underground spaces
SYSTEM PHILOSOPHY When designing for underground ore transport, we aim to limit the expensive rockwork by minimising the required crosssection area of the drift and maximising the loading volume of the wagon. Our proven Rock Dumper has a low bottom and carries its load from deep down between the axles to the highest point of the body. To lower the tare weight of the wagon, we have used ultra-high-strength steels and a high-performance wear plate system developed by LKAB. WRC System® is designed for easy plate change-outs and allows us to use wear plates as thin as 10 mm, instead of the usual 25 to 30 mm. The flexibility of the system helps us evaluate and identify precisely the right wear plate for your fraction and mineral.
A PROVEN TECHNOLOGY Already in the 1950s, Kiruna Wagon’s part owner, Nybergs Mekaniska Verkstad, built underground wagons of this type for the LKAB Kiruna Mine, which presently is the largest and most modern underground iron ore mine in the world.
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Highly efficient bottom discharge Handles angular boulders in sizes up to 1500 mm Low-cost maintenance
The Rock Dumper has an unloading capacity of up to 17,000 tonnes/hour
World Class Ore Logistics
UNDER THE SURFACE This 3D generated image shows the unloading station as seen from below. In the image, the entire bottom of the wagon has opened for a complete discharge of the load in just seconds. The wagon itself is carried on the support wheels while the bottom door follows the discharge curve to open to an angle of 60° before gently closing in a smooth movement.
Discharge angle
60°
OPTIMISED MAINTENANCE In addition to the benefits provided by WRC System®, we have a full program for changing and servicing chevrons, bearings and wheels. Below are some examples of our design solutions for optimised maintenance.
The wheel of the bottom door is a unique solution designed for easy change-outs and service.
The support wheels of the unloading station are designed for easy individual change-outs.
The hinge of the bottom door is almost maintenance free, thanks to the use of composite bushings.
The rims and tires in the propulsion unit are standard truck components.
The hinge technology includes a refined sealing to prevent spillage and excessive wear.
Main measurements examples unloading station (mm) 16100
1800
841
3700
1263
1435
5660
16958
28110
Wagon Specifications
RD 15/V10
RD 20/V15
RD 25/V20
RD 32/V25
Loading volume
10 m³
15 m³
20 m³
25 m³
Max payload
21 tonnes
29 tonnes
37 tonnes
50 tonnes
Tare weight
9 tonnes
11 tonnes
13 tonnes
15 tonnes
Max axle load
15 tonnes
20 tonnes
25 tonnes
32.5 tonnes
Distance between axles
2500 mm
2500 mm
3500 mm
3500 mm
Gauge
1000 mm
1000 mm
1435 mm
1435 mm
Unloading capacity
10,000 tonnes/h
14,000 tonnes/h
13,000 tonnes/h
17,000 tonnes/h
Length (over couplers)
3500 mm
3500 mm
5000 mm
5000 mm
Height
1800 mm
2600 mm
2300 mm
2800 mm
Width
2300 mm
2300 mm
2500 mm
2500 mm
Speed
25 km/h
25 km/h
25 km/h
25 km/h
Coupler height
775 mm
775 mm
880 mm
880 mm
Coupler type
Automatic
Automatic
Automatic
Automatic
Brakes
Optional
Optional
Optional
Optional
Temperature interval
-40 to +60 °C
-40 to +60 °C
-40 to +60 °C
-40 to +60 °C
Main measurements examples RD 25/V20 (mm)
2600
2650
3930
2642
5230
181203 250GAS
2234
1435
5053