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Measuring System Turned Upside Down

Mobile Bogie Test Rig Saves Time, Space and Money
CHEMNITZ, GERMANY. Since the end of February 2013, the Augsburg municipal services have been using a new test rig for gauging their tram bogies. The distinguishing feature of this system: the BMS 09 is a mobile system for testing, maintenance and presetting of bogies for railway vehicles of various types and sizes. It only requires 3.30 x 2.50 meters of space, weighs just under four metric tons and can be installed within two hours, making it quick to implement in workshops with limited space. Thanks to these advantages, the investment costs are clearly lower than those of stationary systems.
Test rig for gauging tram bogies
The engineers and skilled workers of Voith Engineering Services GmbH, Road & Rail, Chemnitz, and AGG Anlagen- und Gerätebau GmbH, Potsdam, developed and built the system. They turned the test rig upside down, so to speak, and rotated the portal, common in the case of measuring equipment, with the load units. “BMS 09 works according to the principle of tractive force application. That allows an especially compact design,” explains Wolfgang Stumvoll, Director of Prototype Construction at Voith Engineering Services, and AGG Manager Rainer Bastian.

The patented process simulates operating loads on the bogie under defined application of force as it acts on the bogie in the installed state and at the same time measures data such as wheel vertical forces, axle parallelism, wheel disk parallelism and various Z measurements. The modularly structured system consists of hardware components and the software controlling and monitoring the test rig.

Simple measuring and assembly rigs with limited requirements can be implemented according to the modular design principle as can complex maintenance systems with automatic test rig equipment. The basic device is designed as a simple load rig and can be supplemented by other modules at the customer’s request. Test rigs with integrated track gauge changing systems, with measuring bars for determining the wheel vertical forces with various distances between the axles or with measuring prisms for determining the wheel vertical forces, automatic detection of the wheel diameter and axle parallelism, among other things, are possible.

Along with the BMS 09, which is designed for the requirements of “light rail,” Voith Engineering Services and AGG are working on the development of a test rig for “heavy rail.”

Voith Engineering Services GmbH, Road & Rail, acts as an engineering service provider for the railway, road and special vehicle sectors. Overall expertise in vehicle development and planning is both our claim and a reality. Depending on the customer’s needs, the 580 employees from Voith Industrial Services cover the entire value creation chain, from development, calculation, construction of prototypes and planning all the way to consultation at the start of manufacturing.

Voith Industrial Services, a division of Voith GmbH, is one of the leading providers of technical services for key industries such as the automotive, energy, chemical and petrochemical industries as well as mechanical engineering. With around 20,000 employees at more than 170 locations worldwide, the company generated sales of 1.1 billion euros in 2012.

Voith sets standards in the markets energy, oil & gas, paper, raw materials and transportation & automotive. Founded in 1867, Voith employs more than 42,000 people, generates € 5.7 billion in sales, operates in about 50 countries around the world and is today one of the biggest family-owned companies in Europe.


Julia Schreiber

Voith Industrial Services Holding GmbH & Co. KG


t +49 0711 78 41-174