Mining locomotives

Schalke develops, manufactures and supplies its locomotives to locations throughout the world. They are tailor-made to handle widely varying customer requirements and equipped with highly practical innovations.

MINING MODUTRAC

MMT-M-270-BDE

Modular Multi System Production Locomotive

Hybrid energy supply: pantograph and Powerpacks (diesel or battery)
Fast switching from Diesel-Power-pack to Battery-Powerpack and vice versa
Central driver‘s cab for a good view in both directions
Capable of bringing unbraked train capacity of up to 700 tonnes to a standstill
Designed for fully automatic, driverless, round-the-clock use

With a total weight of 45 tonnes, this ModuTrac locomotive is designed with a central cab and is currently the heaviest twin-axle locomotive Schalke manufactures. Each wheelset is driven by a 160-kW AC electric traction motor. Two state-of-theart, amongst others liquid-cooled IGBT-controlled traction converters make it possible to control each wheelset individually. The locomotive is designed with a hybrid power supply system, featuring a pantograph for overhead catenary and Powerpacks for diesel or battery operation. The Powerpacks can be quickly and smoothly replaced in approximately one hour as required.

This ModuTrac locomotive is therefore equipped with several state-of-the-art traction technology systems simultaneously. Furthermore, the locomotive features numerous characteristics typical for Schalke products that keep operating and maintenance costs low. These include the electro-dynamic main brake, which is powered by the traction converter and strong enough to bring the entire train to a standstill if required.

In cases of emergency or for prolonged parking, the locomotive is equipped with a pneumatic service brake, which includes a spring-loaded function. Moreover, a highly efficient slip-and-slide protection system is used, ensuring the optimal use of available tractive forces, depending, of course, on the wheel-rail friction coefficient.
State-of-the-art AC traction technol-ogy ensures reduced maintenance costs and standstill period compared with DC systems. A train protection system for outstanding operating safety and an train automation system for driverless operation are also optionally available.

In use at the Grasberg and Esmeralda Mines
These ModuTrac locomotives are in use in PT Freeport’s Grasberg underground mine in Indonesia. In one of the world’s largest copper mines and simultaneously the world’s currently largest gold mine, they transport all of the extracted material in a driverless, round-the-clock, fully automated
system. The predecessors of these locomotives still operate in the Andes mountains of Chile. They also work underground in the Esmeralda mine, which is part of the El Teniente mining complex operated by CODELCO.

Technical data

Power Module

Diesel-Powerpack, Battery-Powerpack,
Pantograph

Power Transmission

AC

Weight

45 t

Axle Arrangement

Bo

Track Gauge

1,435 mm

Power

320 kW

Length

8,000 mm

Width

3,000 mm

Height

3,650 mm

Maximum Speed

25 km/h

Tractive Effort

88 kN (at μ = 0.2)

Transport Capacity

Fully Loaded Train:
572 t
Comprising one locomotive and 11
mining cars a 20 m2

1 Robust and versatile: the production locomotive was developed for use in the Grasberg mine in Indonesia.
2 Battery-Powerpack.
3 Diesel-Powerpack
4 Tractive Effort Diagram and Resistance Curve for Hauling capacity:
572 t
Curve radius: 120 m
Example: Locomotive with diesel generator

Custom built locomotives for mining

Schalke has built numerous locomotives for the demanding environments of mining.

View product specifications

This locomotive is equipped with an impressive range of the latest modular traction technology. In typical Schalke style, the engineering and the carefully selected components keep running and maintenance costs to an absolute minimum. The wearfree, electro-dynamic main brake is capable of bringing the entire train to a standstill, for example 1,500 tonnes of unbraked train capacity can be brought from 25 km/h to a complete halt. The electro-dynamic traction technology enables the locomotive to halt briefly or stop and start on ascending slopes without a problem. The pneumatic service brake is equipped with a spring-loaded function and only designed for use in emergencies or for prolonged parking.

A train protection system for outstanding operating safety and a train automation system for driverless operation are also optionally available.

MINING

MT-M-900-EEB

Multi System Production Locomotive

Hybrid power supply: overhead pantograph, side pantograph and Battery-Powerpack
Locomotive can be divided into three modules for underground transportation to its final point of assembly
Capable of bringing unbraked train capacity of up to 1,500 tonnes to a standstill
Designed for fully automatic, driverless, round-the-clock use

The MT-M-900-EEB is designed with an end cab and has a total weight of 108 tonnes, distributed over four axles. Each wheelset is driven by a 225 kW AC traction motor and can be individually controlled, thanks to state-ofthe- art, amongst others liquidcooled, IGBT-controlled traction converter technology. The power can be supplied by various hybrid options, including a vertical pantograph for overhead catenary operation and also a horizontal pantograph for side catenary operation. The locomotive is additionally equipped with Battery-Powerpacks, enabling it to operate without an external power supply.

Further features of this locomotive are its highly efficient slip-and-slide protection system and its state-of-the-art AC traction technology, which also ensures reduced maintenance and downtime costs.

The locomotive can be divided into three separate modules to facilitate transportation and assembly underground.

In use in Kiruna
The Kiruna mine is the largest underground iron ore mine in the world and operated by the Swedish state-owned company LKAB. Schalke locomotives operate on a new main level at a depth of 1,365 metres – fully automatically, driverless and around the clock. 365 days a year, day and night.