Author: Prose

Blue and white Västtrafik tram on route 3 to Kålltorp travelling through a historic city street in Gothenburg, Sweden.

Reverse engineering of new gears and housing for trams

2025-12-15

Customer: Västtrafik AB, Sweden

Project tasks

Measuring of the gearbox housing
3D modelling and technical drawings
Material definition
Definition of applicable standards
Risk assessment
Criteria for quality control

Our approach

PROSE applied a hybrid reverse-engineering method that combined mobile 3D scanning, mesh processing, and feature-based CAD modelling to reconstruct the gear housing. In parallel, we coordinated with the third-party supplier Zoerkler to perform precision gear measurement, material analysis, and hardness verification.
All interfaces, tolerances, and functional surfaces were systematically cross-checked against the physical components and validated through a structured CSM-RA risk assessment.
Based on these inputs, PROSE established updated 3D/2D documentation and a technical specification defining material, heat treatment, tolerances and surface-finish requirements in accordance with railway safety and documentation standards.

Customer benefit

The long-term availability of spare parts is ensured through updated and complete technical documentation that enables reliable future manufacturing of spare parts. This significantly reduces the risk of obsolescence for the parts involved.
Thanks to PROSE’s hybrid reverse-engineering approach, combining mobile 3D scanning, mesh processing, and feature-based Computer-Aided Design (CAD) modelling, the technical documentation was delivered in a time-efficient manner. At the same time, we ensured an uncompromised level of safety and quality compared with the current gearbox parts.
Throughout the project, PROSE maintained continuous dialogue with all involved actors to achieve solutions that meet the customer’s needs, supported by our independent position and broad engineering expertise.

Railway axle handling equipment with a workshop fixture and CAD model of the axle lift and support console

Design and delivery of an axle lift and support console

2025-12-10

Customer: Göteborgs Spårvägar, Sweden

Project tasks

Requirement capture
Engineering design
Manufacturing and logistics
Delivery within time, budget and quality
Training
Verification

Our approach

Our engineering team worked closely with the customer to define the functional and safety requirements for the axle lift and support console. Based on these inputs, we created the original design delivered three years ago, providing a stable and safe solution for axle handling. For the repeat order, we coordinated the detailed design updates and worked with one of our trusted manufacturing partners to produce the second unit. This follow-up delivery allowed us to refine the proven concept with targeted improvements informed by the customer’s operational experience.

Throughout the project, we ensured clear communication, organised the necessary verification steps, and provided training to support safe and consistent use in the workshop.

Customer benefit

The customer receives a fixture that supports safer and more controlled axle handling in the workshop. The design reduces the risk of axle movement and helps protect personnel and equipment during maintenance activities.
By working with PROSE, the customer benefits from a partner capable of managing the full chain from requirement capture to design, manufacturing coordination, verification, and training. Our independent engineering approach and familiarity with workshop processes ensure that the delivered solution is practical, reliable, and straightforward to integrate.
The decision to procure a second unit confirms that the original solution met the customer’s expectations and that the updated version continues to support their operational needs.

Cylus and PROSE join forces to strengthen rail cybersecurity

2025-11-24

PROSE has entered a partnership with Cylus, a global leader in rail cybersecurity. Together we aim to support rail operators and manufacturers in managing the growing cybersecurity demands placed on modern rail systems.

Railway operations are becoming more complex, and the need for secure and reliable digital infrastructure continues to increase. The partnership combines Cylus’s experience in rail-specific cybersecurity with PROSE’s long-standing engineering and consulting expertise. This includes our work across safety, security, and vehicle authorisation, as well as our broad support throughout the full lifecycle of rolling stock.

Omar Benjumea, Field CISO and Business Development Manager at Cylus, said, “We are thrilled about the collaboration between Cylus and PROSE. Together, we can drive innovation and strengthen rail cybersecurity, ensuring a safer and more resilient rail network for the future.”

Claudius Multmeier, Cybersecurity Expert – Rail at PROSE, said: “The combination of Cylus’s extensive experience in protecting railway assets from Cyber threats and PROSE’s proven 40+ years track record of solving complex questions throughout the sector will ensure a powerful and meaningful partnership for the needs of rolling stock operators and manufacturers alike.” PROSE is renowned for supporting rail projects across phases, from strategy, vehicle design, to fleet management modernisation and optimisation.

This partnership allows the two companies to leverage their combined expertise to safeguard rail infrastructure while promoting collaboration across the industry. By joining forces, Cylus and PROSE are setting a new standard for cybersecurity in rail, building a foundation of trust and resilience to ensure the safety and reliability of rail transportation systems worldwide.

Together, we are dedicated to supporting rail operators in meeting today’s challenges and confidently preparing for the future.

About Cylus

Cylus ensures rail service availability and safety with CylusOne, the first cybersecurity solution designed specifically for rail. Combining rail and cybersecurity expertise, CylusOne provides real-time asset visibility, vulnerability management, threat detection, response, and seamless integration across rail systems. Trusted globally, Cylus empowers operators to reduce risks, ensure compliance, and protect critical infrastructure efficiently. Learn more at www.cylus.com.

About PROSE

Our purpose is to shape tomorrow’s mobility. We contribute to meeting the world’s demand for safe and sustainable railway transportation. Building on decades of global experience and deep understanding of railway technology, we offer reliability and high added value. We support through the entire lifecycle, from strategy and development to maintenance and modernisation. Eager to provide our customers and our society with reliable, customised consulting and engineering services. Let us shape the mobility of tomorrow together!

Bid management for regional train maintenance contracts

2025-11-19

Customer: EuroMaint Sweden

Project tasks

Bid coordination
Development of maintenance strategy
Depot and resource planning
Technical documentation
Obsolescence and component lifecycle analysis
Cross-functional team leadership

Our approach

PROSE acted as Bid Leader, and coordinated a cross-functional team consisting of engineering, procurement, and production experts. The team jointly developed technical and operational documentation, including maintenance plans, depot strategies, and component handling procedures. The work was carried out in close collaboration with stakeholders to ensure alignment with operational needs and regulatory requirements. The documentation was structured to support both strategic decision-making and practical implementation within the bid.

Customer benefit

By selecting PROSE as a partner, the customer gained access to structured and well-documented maintenance solutions tailored to the specific fleet and operational context. The collaborative approach ensured that procurement and production perspectives were integrated early in the process, reducing risk and improving feasibility. The final documentation supported the customer’s ability to submit competitive and technically sound bids, with clear strategies for lifecycle cost control and fleet availability.
The customer also benefited from PROSE’s independent expertise, broad rolling stock knowledge, and ability to deliver practical and implementation-ready material.

Coupler upgrade and electrical interface integration

2025-11-18

Customer: MTR Tech AB, Sweden

Project tasks

Requirements capture and definition of electrical interface
Design review
Update of technical documentation
Verification of electrical connections and signal integrity
Official drawing release and configuration control
Coordination with MTR during implementation and validation

Our approach

PROSE contributed to the design definition of the new electrical interface and collaborated closely with MTR engineers during system implementation of the upgraded coupling system be-tween the Snowblower Wagon Type B257 and the C20 train.
While MTR carried out on-site installation and testing, we re-viewed, clarified, and consolidated the draft electrical updates and ensured that all connections and signal interfaces complied with safety and operational requirements.
The verified and approved information was issued as official electrical drawings, released under PROSE authorship and re-viewed by MTR engineers.
This cooperative approach ensured full traceability, correctness, and compliance with railway documentation standards.

Customer benefit

The customer gained a reliable and standardised coupling solution that reduced manual work in demanding winter conditions. The upgraded interface improved operational efficiency by ensuring full mechanical and electrical com-patibility between the snowblower wagon and the C20 fleet. Independent engineering review by PROSE ensured high quality and compliant documentation, providing confi-dence in the safety and integrity of the system. The result is a future-ready solution that supports safe, efficient, and well-documented winter operations.

Many claim to be independent. We can prove we are.

2025-10-27

At PROSE, more than 90% of our shares are owned by current and former employees, the people who know our business best.
The remaining shares belong to trusted friends connected to our story, not to outside investors or corporate groups.

Independence is not a slogan for us; it is how we are structured.

And that structure keeps our focus where it should be, on your challenges, your projects, and your success.

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