About our company
There is no disruption to
ongoing projects, warranties,
or service agreements.
Business continuity with zero
technical and/or operational risk.
The Foundation of
Our Engineering Expertise
For over eight decades, we have specialized exclusively in the design and construction of dynamometer systems.
This depth of experience is reflected in our engineering quality, testing precision, and long-term system reliability. While a new investor has joined ZES, our technical expertise and engineering standards remain unchanged.
With ZES, you invest in proven knowledge and decades of engineering experience.
Continuity of People, Technology, and Know-How
The core elements that define our company remain unchanged:
• The same experienced engineering and service teams
• The same designs, standards, and quality requirements
• The same spare parts and service support
Meeting Market Demands
• Superior measurement accuracy and repeatability
• Highdynamic control and stability for precise test cycles
• Excellent operational availability and system reliability
• Fast response and expert after-sales service with spare parts support
• Customized dynamometer solutions tailored to your test requirements
• Cost-effective installation and commissioning
• Cost-effective per kW and Nm
• Minimal infrastructure requirements for testbed water supply (0.5 - 2 bar stable pressure)
• Available in single or dual operating directions
• Compact, robust design with low inertia
• Exceptional thermal stress resistance even during aggressive testing
*Logos shown represent companies whose engines or systems have been tested with ZES dynamometer technology or with whom ZES has conducted business. All trademarks remain the property of their respective owners and their use does not imply endorsement.
Core Values
Our core values guide how we design, support,
and continuously improve our dynamometer systems.
Our History
Proven Track Record in the Field
Our dynamometer systems have been successfully installed worldwide and are known for long operational lifetimes—many systems remain in service after decades. This real-world performance is the strongest proof of reliability and quality. “Equipment that delivers long-term accuracy and uptime.”
Founded by Mr. Zöllner
Products: Sound Signals and Hydraulic Dynamometers
Take-over and integration into AVL Group
Products since the 60’s: Chassis Dynamometers,
Hydraulic & Eddy Current Dynos, Sound Signals for Ships/Train
AVL ZÖLLNER became a 100 % daughter company of the AVL
Products: Chassis Dynamometers and Engine Dynamometers
Segmentation into Chassis Dyno-AVL Zollner (Bensheim/Germany)
Hydraulic and EC-Dynos - AVL ZÖLLNER MARINE (Kiel/Germany)
Removal into a new location in Kiel
Establishment of Zollner Energy Systems as an independent entity (Kiel/Germany)
Our Pride
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