Quick Facts

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Grau Elektronik GmbH

Founded in 2001
Specialized in Railway Power Supply Applications according EN50155
> 1000m² production area
57 employees
In house engineering, testing, manufacturing, vacuum potting, SMT assembling
ISO 9001 certified since 2002

Process Overview

Our Product Development Process

Initial Consultation

Together, we define clear project goals and requirements. Our vast library of customizable standard products and field-tested circuit designs often eliminates the need to start from scratch, saving you time and resources. However, we can always tailor a solution uniquely to your needs.

Development

As your all-in-one partner, we guide your project from concept to completion. Our senior engineers lead the design process, utilizing modern CAD tools for 2D PCB design and 3D modeling to ensure your project is executed efficiently and meets the highest standards.

Prototype Design

Construction of physical prototype(s) for early testing and iterative refinement.

Testing & Approval

Rigorous testing, external certifications and your final approval.

Production & Delivery

We produce and deliver your product.

Railway Applications

Projects include

  • Uninterruptible Power Supply (UPS)
  • USB charging solution
  • Network surge protection
  • Voltage converters for control systems, doors, breaks, light, entertainment, communication, ...
  • Signaling

Designed for harsh environments

  • 250.000 - 1.000.000h MTBF
  • -40°C to +85°C
  • -50°C to +85°C on request
  • up to 5000m altitude on request

Locally rooted - Globally connected

We are locally rooted and globally connected. Our closest suppliers are our immediate neighbors (within 30 meters), while our distribution network reaches as far as Oceania and Asia through carefully selected distributors.

Having a strong local network allows us to reduce lead times, costs and reducing carbon footprint.

Supply Chain Management

  • Obsolescence Management
  • Strong local & global supplier network
  • In house stock
  • Spare parts management
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Manufacturing

Through in-house manufacturing, we have complete control over the production process, allowing us to quickly adapt to changing market demands and implement innovative solutions.

Our dedicated team and state-of-the-art equipment enable us to deliver high-quality products with short lead times. By fostering long-term partnerships with our suppliers, we can seamlessly scale our operations to meet increasing customer needs.

Our extended workbench is more than just a supply chain; it's a strategic partnership that has been refined over decades. The deep integration of our external partners into our operations ensures a seamless flow of information and materials, enabling us to maintain the highest levels of quality and responsiveness.

In house capabilities

  • SMT & THT assembling
  • Vacuum potting
  • Cable assembling
  • Mechanical assembling
  • Transformer manufacturing
  • Coating
  • Manufacturing monitoring / Production control according IPC-A-601 Class 2/3
  • Tools and measuring equipment calibration under regurlarly monitoring

Soldering processes

  • Wave
  • Reflow (leaded and lead-free)
  • Selective (leaded and lead-free)
  • Rework

Testing

We are committed to delivering products of exceptional quality. To achieve this, we have established a comprehensive testing program that starts at the very beginning of the manufacturing process.

Incoming materials are carefully examined, and throughout production, our products undergo rigorous visual and functional inspections.

To ensure the longevity and reliability of our products, we subject every unit to a 100% testing and burn-in process.

In house testing

  • 100% testing
  • 100% Burn In
  • Automated testing machines
  • High voltage testing
  • Isolation testing
  • pre-compliance EMC & surge testing

External partners

  • Certifications by independant, accredited partners
  • EMC
  • Vibration/Shock
  • Fire load