Heat Transfer Technology AG
Market leader for innovative solutions in thermal process technology
Heat Transfer Technology AG (HTT AG), based in Zug, Switzerland, is an internationally recognized market leader in the field of thermal process technology. With outstanding innovative strength, in-depth engineering knowledge and a clear focus on technical excellence, HTT AG has established itself as the first port of call for sophisticated heat transfer and process engineering applications.
Specialized in pillow plate heat exchangers
At the heart of our technological expertise are cushion plate heat exchangers (CPHE) - a state-of-the-art alternative to classic tube bundle heat exchangers. These are characterized by a unique, wave-shaped design and a fully welded double-wall structure. They are ideal for energy-efficient use in the process industry.
Thanks to precise finite element analysis (FEA) and computational fluid dynamics (CFD) studies, we develop high-performance heat exchangers with minimal pressure loss and optimum thermal performance. The resulting design equations for pressure loss coefficients and Nusselt numbers form the basis for reliable and high-performance system solutions.
Engineering expertise for complex process requirements
Our highly qualified mechanical process engineers realize tailor-made solutions for complex tasks in refrigeration and heating technology. We offer technical systems that are designed for efficiency, durability and cost-effectiveness - from the initial thermodynamic calculation to the finished heat exchange plate or complete assembly.
Thanks to state-of-the-art production methods, such as high-precision laser welding technology, as well as close cooperation with leading partners such as BUCO Wärmeaustauscher International GmbH and BUCO Laserplate GmbH, we guarantee the highest quality, process stability and safety.










Wide range of applications – from industry to energy technology
HTT AG supplies solutions for a wide range of applications, including
Water cooling down to 0.5 °C in refrigeration technology
Rapid cooling of food to near freezing point – without freezing damage
Waste heat recovery from waste water or process heat
Heat recovery. when using lake and river water
White water heat exchangers for the pulp and paper industry
Chemical and process engineering for liquid cooling or heating
Our systems are individually adapted to spatial, hygienic and technical requirements and meet the highest industry standards.
Energy efficiency and grid stabilization
HTT AG also supports companies in increasing the efficiency of existing refrigeration systems, for example by
Optimizing the refrigerant flow
Adjusting evaporation and condensation temperatures
Integrating additional evaporators or condensers
In addition, our systems enable the use of load management to reduce power peaks in the grid - for example by using thermal energy storage systems to stabilize power consumption.
Why HTT AG?
✔ Market leader in thermal process technology
✔ Pioneer in the field of cushion plate heat exchangers
✔ In-depth expertise in fluid mechanics, pressure loss calculation and CFD analysis
✔ Tailor-made solutions with maximum energy efficiency
✔ Strategic partnerships for world-class research and production







