THE FASTEST UNLOADING OF STICKY BULK MATERIALS Kiruna Wagon’s innovative Helix Dumper is optimised for fine-grained and potentially sticky heavy bulk materials and has an unparalleled discharge rate of up to 25,000 tonnes per hour. For tough-flowing commodities that are unsuitable for bottom discharge, the Helix Dumper provides a highly efficient logistics solution.

The principle behind the Helix Dumper unloading technology is simple but ingenious: during discharge, the body of the Helix Dumper is rotated 148 degrees while the chassis remains on the rails. The rotation, along with the rounded shape of the body, creates optimal conditions for efficient discharge of even the toughest concentrate materials.

For minimised tare weight and maximised payload, all wagons from Kiruna Wagon are constructed in high-strength steels.

Helix Dumper unloading in Narvik, Norway, for Northland Resources.

Commodities: Rock, pellets, concentrateDischarge rate: Up to 25,000 tonnes/h

Lightweight wagons

Continuous discharge

Rounded shape for efficient discharge

Low-cost unloading station

WATCH OUR PRODUCT MOVIES ON OUR YOUTUBE CHANNELwww.youtube.com/kirunawagon

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World Class Ore Logistics WWW.KIRUNAWAGON.COM

BEST CHOICE FOR FINE-GRAINED BULKCurrently, there is no technology that can match the productivity of the Helix Dumper when it comes to unloading heavy fine-grained bulk goods at a high discharge rate. Bottom dump systems operate at a fast rate but can’t handle sticky materials, and rotary car dumpers are slow and expensive compared to the rolling discharge solution of the Helix Dumper.

The Helix Dumper unloading station is delivered with principle drawings and a maintenance program. Kiruna Wagon will perform the installation, supervise the start-up process and train the operators.

NO MOVING PARTS – NO ELECTRICITYThe Helix Dumper unloading station is a robust and low-cost solution that requires minimal maintenance. When the Helix Dumper enters the unloading area, a wheel at the top of the wagon makes contact with the spiral-shaped rigid guide that constitutes the unloading station. As the wheel travels along the path of the guide, the chassis remains on the rails while the body of the wagon is rotated 148 degrees to dump its load.

The discharge process is powered by the locomotive’s forward motion – the Helix Dumper unloading station has no moving or motorised parts and requires no additional power supply.

Continuous discharge

No moving parts

Tipping by train engine

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Lightweight wagons

Rounded shape for efficient discharge

Low-cost unloading station

The body is rotated 148° and the run-off angle for the critical bottom material is over 100°

90°

180°

60°

Low material speed

Highmaterial

speed

>60°

The Helix Dumper unloads even the stickiest bulk materials at rates up to 25,000 tonnes per hour

No moving parts

Tipping by train engine

Learn more about the innovative Helix Dumper system by watching our product videos on YouTube: www.youtube.com/kirunawagon

A shallow pit requires a lower investment and less energy for material reclaim and handling

Low-cost unloading station

Through efficient unloading as a solid train in continuous motion, the Helix Dumper can greatly reduce your unloading times and maximise your wagon utilisation.

26.1km/hAVERAGE ANNUAL WAGON SPEEDAt Kiruna Wagon, we consider average annual wagon speed (AAWS) to be one of the most important key performance indicators. In the authentic case of Northland Resources’ mine start-up in Pajala, Sweden, the HD wagon performed at 10.9 km/h AAWS, but in full scale their system is designed to operate at 26.1 km/h AAWS.

The AAWS of our BD wagons for LKAB is 17.5 km/h, while our BD wagons for Rana Gruber operate with an AAWS of 25.7 km/h. On our website, you can download our excel sheet and compare with your own fleet.

World Class Ore Logistics

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MAIN MEASUREMENT EXAMPLES

When you buy a system from Kiruna Wagon, you acquire a complete solution for both transport and unloading. We consider the whole logistics chain and design systems for efficient transport at the right total capex and opex. We are one of very few companies to deliver both the wagons and the station.

We deliver both the wagons and the unloading station

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If the future brings increases in production, the HD system can easily be scaled up with one or more additional unloading station. Thanks to its limited construction depth and lack of electric motors, the HD unloading station requires a smaller initial investment than, for example, rotary car dumpers.

The low-cost unloading station facilitates increasesin production and high scalability

All wagon types from Kiruna Wagon can be customised to fit your logistic preconditions. Such as axle load, length, volume, loading profile, AAR, TSI, etc.

SPECIALLY DESIGNED BUCKET FOR GENTLE UNLOADING BY EXCAVATOR

The body of the Helix Dumper has a rounded shape for efficient discharge of fine-grained commodities. For situations where unloading by excavator is required, we have developed a rounded bucket that can unload the goods efficiently without damaging the body.

CONTACT US FOR MORE INFORMATION

1705

04D

K 2

50G

AS

148°

BENGT BOLSÖYTechnical Manager +46 (0)70-601 58 15 bengt.bolsoy@kirunawagon.com

FREDRIK KANGASManaging Director

+46 (0)70-575 70 56 fredrik.kangas@kirunawagon.com

Wagon Specifications Example HD 30/12

Unloading capacity 25,000 tonnes/h

Max axle load 30 tonnes

Line load 12 tonnes

Number of axles 4

Wagon length 10,300 mm

Gauge 1435 mm

Tare weight 22.4 tonnes

Loading volume 45 m³

Length between bogie centres 6744 mm

Wheel base 1778 mm

Coupler height 1040 mm

Working temperature -40 to +60 °C

Discharge angle 60˚

Station Specifications

Unloading capacity 25,000 tonnes/h

Required positioning accuracy -

Working temperature −40 to +60˚C

Electrical power required -

Loading gauge All common

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