Logo Made in Germany Chinaplas 2018

ONI-Wärmetrafo GmbH

Booth number: 2K52

About us

Our service portfolio ranges from project consultation to expert planning and engineering all the way to construction and installation as well as after-sales services in the sectors machine cooling, process cooling and chilling, heat recovery, ventilation systems, air conditioning systems, cleanroom technology, compressed air supply, machine optimization, and tool temperature control. Our continuous success is due to a growing number of customers in Germany and abroad who are able to substantially reduce their energy costs with our energy saving ONI systems solutions.

We’re particularly proud of the numerous national and international awards we’ve received as well as the acknowledgment of our corporate performance and our high level of innovation by top ranking representatives of the federal and state governments. For example, by the Federal President, the Chancellor, the President of the Federal Parliament, or the Ministers for Economic Affairs, Energy, the Environment, and Labor.

Products and services

Our range of products

  • Cooling/chilling systems
  • Heat recovery
  • Air conditioning
  • Ventilation systems
  • Clean-room technology
  • Rental chilling systems
  • Compact chillers
  • Dry-type coolers
  • Modular energy center
  • Temperature control systems
  • Power optimization
  • Water treatment
  • Compressed-air supply
  • Project engineering
  • Maintenance/service
  • 24-hour-service
Cooling/chilling systems

Cooling/chilling systems

Energy-optimized cooling system for feeding production machines as well as air-conditioning and ventilation systems. With heat recovery for using cost-free waste heat and a non-glycol winter relief for reducing the power consumption of chillers.

Exterior view of a ventilation center

Exterior view of a ventilation center

Whenever we design a ventilation system for a company in the plastics processing, quality assurance in production is always the focus in planning and implementation. However, the operating costs of such systems are a crucial factor which needs special attention. This is the reason why ventilation or air-conditioning systems planned and implemented by us are always designed on the basis of „the lowest possible costs“ principle for the plant operator.

Modular energy center

Modular energy center

The demand for modular energy centers has considerably increased during the recent years.
The reasons for this development may surely be a quick availability, flexibility and the space-saving design of these powerful ONI systems. From the supply of cooling water to compressed air including pumps, tanks and controllers, the entire technology is integrated into modular units in a compact and space-saving manner. Hi-tech and quality products are combined in our modular energy centers.


ONI-Wärmetrafo GmbH
Niederhabbach 17
51789 Lindlar

Phone: +49 2266 4748-0
Fax: +49 2266 3927

Guido Hamm
Project Manager Area Sales Manager Asia Pacific
Phone: +49 171 4455387 / China +86 155 06130550

ONI Energy saving technology (Kunshan) Co., Ltd.
No.329, Jujin Rd, Zhang Pu Town,
215321, Kunshan City, Jiangsu Province
P. R. China

Phone: +86 512 3662-5112
Fax: +86 512 3662-5111

Business matching
Get in contact with German companies in 3 easy steps! With one single question you can reach all relevant German Pavilion exhibitors of your selected industrial branch.

Click here if you notice an image that violates copyright or privacy rights.

Your personal organizer

Your personal organizer

Print list
Lenzkes Spanntechnik GmbH
Booth number: 2J34