• Continuous discharge
  • Very low-cost and robust unloading station
  • Unloading capacity of up to 200 wagons/h

BD – Bottom Dumper

BD – Bottom Dumper on You Tube

Download data sheet

Download and print the information and data about our Bottom Dumper

Adobe reader


BD – Bottom Dumper

[ingress]

Our Bottom Dumper is suitable for heavy transport of easily unloaded commodities and features a large bottom door for high-capacity continuous discharge. The wagon is simple and robust and has a mechanically controlled system for discharge. Due to its modular design, a damaged body or bottom door can be replaced within two hours. The solution is proven in a subarctic climate.[/ingress]

SpecificationsBD 20/8BD 25/8BD 25/10BD 30/12
Max axle load20252530
Line load881012
Number of axles4444
Wagon length10 m12.5 m10 m10 m
Gauge1435 mm1435 mm1435 mm1435 mm
Tare weightCa 20 metric tonnesCa 21 metric tonnesCa 20 metric tonnesCa 20 metric tonnes
Body volumeCa 50 m3Ca 60 m3Ca 50 m3Ca 50 m3
Length between bogie centres6444 mm8944 mm6444 mm6444 mm
Wheel base1778 mm1778 mm1778 mm1778 mm
Coupler height1040 mm1040 mm1040 mm1040 mm
Technical lifespan chassis 20 years20 years20 years20 years
Technical lifespan body10 years10 years10 years10 years
Temperature interval-40 to +60-40 to +60-40 to +60-40 to +60
Unloading capacity10 000 m3/h12 000 m3/h10 000 m3/h10 000 m3/h

A robust wagon for the heaviest transports

Our new-generation Bottom Dumper is a strong feature of our product portfolio for modular standard products. The Bottom Dumper is an 8-axle wagon made up of a master wagon, fully equipped with controls for the brake system, and a slave wagon.

The robust BD wagon is suitable for heavy transport of pellets, rock and other easily unloaded commodities and has a large bottom door for high capacity continuous discharge. The construction is based on more than 100 years of experience in rail bound ore transport and steel refinement.

High-capacity discharge and loading

Fast loading and discharge is a key feature of the Bottom Dumper. The bottom of the wagon consists of two large hatches that open entirely during discharge. Emphasis has been placed on the angle of repose, to optimise the centre of gravity and achieve a complete emptying. The wagon is designed for rolling discharge and has a discharge capacity of up to 20 000 metric tonnes per hour.

The Bottom Dumper unloading station is a low-cost solution designed to provide a reliable service in temperatures ranging from −40 to +60 °C. The solution is tested and proven in a demanding subarctic climate. The maximum train speed is 70 km/h when empty and 60 km/h when loaded.

Construction and materials

By using ultra high-strength hot-rolled steel with a lowest yield point of 650 MPa in the body we have minimised the tare weight and developed a more efficient and environmentally friendly ore transport. The wagon body is built like a boat hull where a supporting frame distributes the forces downward from the load to the chassis. Advanced techniques, such as laser hybrid welding and laser cutting, have been used in the manufacturing process to produce durable seams and minimise the heat effects on the steel.

Maintenance concept

The Bottom Dumper has a modular design which means that damaged parts can be quickly replaced. A goal of our maintenance concept is that two people should be able to exchange any of the wagon components within two hours, with exception for the chassis.

NO-RG Fanoo for Rana Gruber

In 2014 we received an order to manufacture 40 Bottom Dumpers for Norwegian mining company Rana Gruber AS. The NO-RG Fanoo, which is built for a 30-tonne axle load, is a further development of LKAB’s Fammoorr050 and designed to deliver low tare weight and high payload advantage. The NO-RG Fanoo is used to transport raw goods from Rana Gruber’s underground mine and open pit in Ørtfjell to the processing plant and port in Mo i Rana.

Download data sheet BD

 

FAMMOORR050 for the LKAB Kiruna Mine

Since 2005, we have delivered more than 1000 units of Bottom Dumpers to the Swedish mining company LKAB. The delivery of 1000 wagons entails a total of 10.3 km of train and 21 000 tonnes of steel. No equivalent industrial project has been undertaken in Sweden during the past 40 years. The Fammoorr050 transports iron ore from the Kiruna Mine to the ice-free port in Arctic Norway.

The Fammoorr050 is an 8-axle wagon made up of a Fanoo040 master wagon, fully equipped with controls for the brake system, and a Fanoo040 slave wagon. In normal train operation the Fanoo wagons are always semi-permanently coupled in pairs and the performance of a Fammoorr050 is thus that of a Fanoo040 times two (see data table to the right).

The challenge we accepted for the LKAB FAMMOORR050 was the following:

  • Load 100 metric tonnes
  • Transport 1.4 million metric tonnes during its 20-year lifetime
  • Roll 600,000,000 kilometres (490 times around the globe)
  • Function at temperatures ranging from -40 to +50 °C
  • Maximum 1-year development period

 

Kiruna Wagon Bottom Dumper for Rana Gruber

Kiruna Wagon Bottom Dumper for Rana Gruber. Photo: Runar Gudmundson