
Custom heat exchanger plates (Dimple/Pillow Plate), falling film chillers and industrial ice makers for thermal process engineering.
Heat Transfer Technology AG
Zug (CH) · Olching (DE)New on Amplifa
About HTT AG
Heat Transfer Technology AG (HTT AG), headquartered in Zug, Switzerland, specializes in thermal process engineering. The company develops, calculates and manufactures custom heat exchanger plates (Dimple Plate / Pillow Plate), Dimple Jackets, falling film chillers, industrial ice makers and ice storage systems. Production is carried out by laser welding (including Trumpf systems) from mild steel, austenitic stainless steels and titanium; the ice machines are built entirely of stainless steel and operate with the refrigerant NH3 in pump mode at capacities of 5 to 150 tonnes of ice per day. Thermodynamicists, mechanical and welding engineers handle thermal calculations, design, engineering and system integration, complemented by CFD analyses, FEA and digital methods such as AI-assisted simulation. In addition to products, HTAG offers basic engineering, process optimization, revamping and energy efficiency studies. Customers come primarily from food processing (dairies, fish, meat, baked goods, breweries), chemicals, pharmaceuticals, concrete production and energy technology. In addition to the headquarters in Zug, there is a subsidiary in Olching, Germany; the systems are sold worldwide.
- Site
- Zug
- Processes
- Manufacture of Dimple Plate / Pillow Plate heat exchanger plates (custom manufacturing), Design, engineering and calculation of heat exchangers (heat transfer and pressure loss), Basic engineering and conception of new production plants, Process optimization and revamping of existing plants, Energy and resource efficiency studies, Technical due diligence and plant consulting, CFD analysis and FEA, Laser heat treatment / laser welding of the heat exchanger plates
- Materials
- Mild steel, Austenitic steels (stainless steel), Titanium, Ammonia (NH3) as refrigerant, Ammonia (refrigerant), Laser welding systems (Trumpf)
- Founded
- 2007-11-13
- Employees
- 20
- Industries
- Food processing, Dairies, Fish processing, Meat processing, Bakeries, Breweries
- 01
Thermal calculation and design (heat transfer, pressure loss, CFD, FEA)
- 02
Engineering and welding-technological design
- 03
Laser welding of the heat exchanger plates (Trumpf)
- 04
Manufacturing of the systems from steel, stainless steel or titanium
- 05
System integration and assembly
- 06
Commissioning, process optimization and plant consulting
Materials and Processes
Mild steel
Material for custom Dimple and Pillow Plate heat exchanger plates depending on application and heat transfer requirements.
Austenitic steels (stainless steel)
Used for hygienic applications, fully stainless steel construction of the ice makers and falling film chillers.
Titanium
For corrosive media such as seawater or bioactive components in heat exchanger plates and systems.
Ammonia (refrigerant)
Environmentally friendly refrigerant of the ice makers in pump or injection mode.
Laser welding systems (Trumpf)
Manufacturing process for hermetically welded Dimple and Pillow Plates with high weld seam quality and process stability.
Locations

Zug
CHHeadquarters, engineering and sales
- Materials
- Steel, stainless steel, titanium
- Laser welding system (Trumpf)
Olching
DESubsidiary Heat Transfer Technology GmbH
Components and Systems









Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of Dimple Plate / Pillow Plate heat exchanger plates (custom manufacturing)Casting | – | – | – | – | mild steel, austenitic steels (stainless steel), titanium |
| Design, engineering and calculation of heat exchangers (heat transfer and pressure loss)Engineering | – | – | – | – | – |
| Basic engineering and conception of new production plantsEngineering | – | – | – | – | – |
| Process optimization and revamping of existing plantsEngineering | – | – | – | – | – |
| Energy and resource efficiency studiesEngineering | – | – | – | – | – |
| Technical due diligence and plant consultingEngineering | – | – | – | – | – |
| CFD analysis and FEAEngineering | – | – | – | – | – |
| Laser heat treatment / laser welding of the heat exchanger platesJoining | – | – | – | – | mild steel, austenitic steels, titanium |
| BUCO Industrial Ice Machine – flake ice/crushed ice production 5–150 t/day (200–6200 kg/h),Other | – | 2.5 m (system length) × 2.5 m (system type B) × 3.3 m (system type B) | – | – | stainless steel (entirely) |
| Falling Film Chiller (falling film chiller, water production at 0.5 °C)Other | – | – | – | – | stainless steel |
| Ice Bank / Ice Bank Silo / Flake Ice Storage Systems (ice storage)Other | – | – | – | – | – |
| Dimple Jacket (vessel wall as condensate/tempered jacket cooling)Other | – | – | – | – | stainless steel, mild steel |
| Welding-technological design and construction of custom heat exchanger plates and systemsJoining | – | – | – | – | mild steel, austenitic steels, titanium |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser welding system | Trumpf | – | – | – | – |
| Industrial ice machine (BUCO Ice Pack), NH3 pump mode, 150 t/day | BUCO | – | – | – | – |
| Industrial ice machine (BUCO Ice Pack), NH3 pump mode, 66 t/day | BUCO | – | – | – | – |
| Fully automated ice machine, NH3 pump mode, 34 t/day | BUCO | – | – | – | – |
Additional services
History
- 2007
Heat Transfer Technology AG founded by Sven-Olaf Klüe on 13.11.2007 in Zug.
- 2015
BUCOdelot falling film ice makers have been in operation for over 20 years; more than 200 systems in operation.