The KiwiRail DM locomotive has officially entered service in New Zealand, starting trial runs between Christchurch and Timaru while showcasing advanced technology, improved safety, and significant comfort upgrades for locomotive engineers. This is reported by the railway transport news portal Railway Supply.

KiwiRail DM locomotive launches with major upgrades
Image: KiwiRail

KiwiRail DM locomotive trial operations

KiwiRail began trial operations for its new DM class by launching the first unit between Christchurch and Timaru. These runs will cover more than 5,000 kilometres across South Island routes, including the challenging Otira–Arthur’s Pass section.

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The project follows seven months of joint work between KiwiRail and Stadler in Spain. Together, they developed, refined, and tested the locomotive to meet both local requirements and international performance standards.

KiwiRail DM locomotive design and features

Mechanical engineer Justin Young explained that the DM series is new to New Zealand’s rail network, so meeting regulatory standards required a comprehensive certification process. Testing two units locally before importing the rest from Valencia helped identify and fix potential issues early.

Locomotive engineer Kyle Swainson compared the upgrade to moving from a 1960s car to a modern 2020 model. The new design offers quieter operation, climate control, ergonomic seating, and advanced onboard computer systems for real-time performance data.

Stadler’s Project Technical Leader, Borja Rozalén Valcuende, said customizing the design for KiwiRail’s needs was challenging but rewarding. He believes the locomotive’s performance will set new benchmarks in efficiency, comfort, and operational reliability across the KiwiRail network.

The company expects the DM class to improve fleet efficiency, enhance safety, and offer better working conditions for engineers. This rollout represents a strategic investment in the modernization of New Zealand’s rail infrastructure.

FAQ

What is the KiwiRail DM locomotive?

The KiwiRail DM locomotive is a modern diesel-electric engine built by Stadler for New Zealand’s rail network, featuring advanced comfort, safety, and performance systems.

How long will KiwiRail DM locomotive trials last?

Trial runs will cover over 5,000 kilometres, testing performance on various South Island routes, including difficult mountain passes.

Who manufactures the KiwiRail DM locomotive?

The locomotive is manufactured by Stadler in Spain, in partnership with KiwiRail, and tailored to meet New Zealand’s unique operational needs.

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