Consulting

Feasibility study System Design Efficiency calculation Grants
Solutions

Solutions
Heating Cooling Ventilation Energy Supply & Storage Systems Engineering & Plant Optimization

Heat recovery Industrial heat pumps Combined heat and power plant Refrigeration systems Rent a refrigeration unit Container refrigeration systems Mobile refrigeration unit Ventilation systems Cleanroom Technology Ice storage Battery storage Compressed air systems Cooling water Cooling Water Treatment Temperature control technology Energy-Efficient Machine Optimization

Heat recovery

Our heat recovery systems are used by customers across a wide range of industries worldwide. By doing so, customers not only reduce their energy costs but also make a significant contribution to reducing their environmental impact. Find out more about the possibilities for utilizing waste heat in your business—free of charge and with no obligation!

Industrial heat pumps

Industrial heat pumps offer businesses an efficient solution for heating and process heat—especially when waste heat is used as a heat source and the goal is to reduce energy costs.

Combined heat and power plant

As a system supplier, ONI-Wärmetrafo GmbH offers you a wide range of services from a single source. This includes the integration of an existing CHP plant or the design of a new one. We have already completed numerous projects involving combined heat and power plants and would be happy to present you with a system solution tailored to your needs and based on our experience.

Energy-efficient cooling systems tailored to your needs

Let our experts advise you and schedule a no-obligation consultation today. We look forward to designing a system for you.

Rental refrigeration systems / Rental chillers

Do you need additional capacity on short notice, or are you planning a renovation that requires a flexible cooling solution? Then get in touch with us!

Container refrigeration systems

Demand for modular energy centers has risen rapidly in recent years. The reasons for this trend can certainly be found in the quick availability, flexibility, and space-saving design of these high-performance ONI systems. From cooling and chilled water to heating energy and compressed air supply, including pumps, tanks, and control units, the entire system is arranged in a compact and space-saving manner within modular units.

Refrigeration Equipment & Technology

A reliable and energy-efficient supply of cooling water for production is a top priority for any business. That is why more and more companies around the world are choosing our energy-optimized and highly reliable cooling system technology

Highly efficient ventilation systems and room air conditioning

Our ventilation systems and room air conditioning solutions feature state-of-the-art technology and meet the highest standards of efficiency and reliability.

Cleanroom Technology

The need for a cleanroom environment, where exposure to airborne solid or liquid particles is minimized, usually stems from product-specific or hygiene requirements. The range of industry-specific requirements is broad, and the associated system engineering is correspondingly complex.

Ice storage

Almost every industrial facility generates waste heat. Use our heat recovery systems to harness this energy for heating your offices, factory floors, and much more.

Battery storage in a container

A container-based battery storage system is a scalable storage solution that ensures flexible access to electrical energy during operations.

Compressed air systems

A reliable and efficient compressed air supply is a top priority for industrial companies. In this context, “reliable” also means generating and supplying compressed air in the quality and quantity required for production processes, machinery, and equipment.

Cooling water for industrial facilities

Cooling water in industrial systems: hydraulics, standards, operational and process safety, and energy efficiency in the recirculation cooling loop with ONI-PowerSave.

Cooling Water Treatment for Industrial Facilities

Cooling water treatment for reliable cooling systems: Stabilize water quality; reduce corrosion and scale buildup.

Temperature Control Technology with Rhytemper®

Optimal manufacturing process. The unit costs of die-cast and injection-molded parts are largely determined by mold temperature control! This is because mold temperature control has a direct impact on process stability, product quality, and cycle time.

EtaControl®: Energy Efficiency in Manufacturing

EtaControl® from ONI helps plastics processors quickly reduce energy costs.
Industries

Automotive Chemistry Energy Plastic Food Metal Pharmaceuticals Data centers
Service & Maintenance

24/7 Emergency Service Maintenance Rental cooling Monitoring Spare Parts Inquiries
About Us

Mission & Vision History References Careers Certificates Media Library News Trade Show Dates
Contact & Directions

Contact Locations Representatives
Deutsch English 汉语 Polski Español Français

Brochures

Explore
Our Solutions In our brochure library, you’ll find concise information, clear overviews, and practical details—quickly, directly, and available anytime.

Just select, download, and get started.
Whether you’re looking for product knowledge, solutions, or concise decision-making resources: Here you’ll find the materials that truly help you move forward.

Full Program: Expertise and Experience in Refrigeration, Air Conditioning, and Temperature Control Technology
PDF Download (DE

)

PDF Download (PL)

Modular Energy Centers
PDF Download (German

)

PDF Download (Polish)

Compact Chillers
PDF Download DE
PDF Download PL

HVAC, Ventilation, and Cleanroom Technology
PDF Download DE
PDF Download PL

EtaControl^®
PDF Download DE
PDF Download EN

ONI-AquaClean, Water Treatment
PDF Download DE
PDF Download EN
PDF Download PL

ONI-AquaClean Cooling Tower Water Treatment
PDF Download DE

AWR Systems
PDF Download DE
PDF Download EN

Full Program: Energy-Efficient Cooling and Refrigeration Systems, Heat Recovery Systems for Industry
PDF Download DE
PDF Download PL

Emergency Service