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HTT AG – Fertigung

Custom heat exchanger plates (Dimple/Pillow Plate), falling film chillers and industrial ice makers for thermal process engineering.

HTT AG Logo

Heat Transfer Technology AG

Zug (CH) · Olching (DE)New on Amplifa

2007Founded
20Employees
2Locations (Zug, Olching)
5–150 t/DayIce capacity of the ice makers
>200BUCOdelot ice makers in operation

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
  1. 01

    Thermal calculation and design (heat transfer, pressure loss, CFD, FEA)

  2. 02

    Engineering and welding-technological design

  3. 03

    Laser welding of the heat exchanger plates (Trumpf)

  4. 04

    Manufacturing of the systems from steel, stainless steel or titanium

  5. 05

    System integration and assembly

  6. 06

    Commissioning, process optimization and plant consulting

Materials and Processes

S235

Mild steel

Material for custom Dimple and Pillow Plate heat exchanger plates depending on application and heat transfer requirements.

1.4301

Austenitic steels (stainless steel)

Used for hygienic applications, fully stainless steel construction of the ice makers and falling film chillers.

Ti

Titanium

For corrosive media such as seawater or bioactive components in heat exchanger plates and systems.

NH3

Ammonia (refrigerant)

Environmentally friendly refrigerant of the ice makers in pump or injection mode.

Laserschweißen

Laser welding systems (Trumpf)

Manufacturing process for hermetically welded Dimple and Pillow Plates with high weld seam quality and process stability.

Locations

Standort Zug

Zug

CH

Headquarters, engineering and sales

Materials
Steel, stainless steel, titanium
  • Laser welding system (Trumpf)

Olching

DE

Subsidiary Heat Transfer Technology GmbH

Components and Systems

Double-embossed Pillow Plate (radiation plate)
Double-embossed Pillow Plate (radiation plate)Laser welding · Process engineering
Single-sided Pillow Plate with TIG edge
Single-sided Pillow Plate with TIG edgeLaser welding · Food technology
Process vessel with Dimple Jacket shell
Process vessel with Dimple Jacket shellHeat exchanger · Chemical/food industry
Stainless steel heat exchanger system
Stainless steel heat exchanger systemPlate Heat Exchanger · Process engineering
Falling Film Chiller 1900 kW NH3
Falling Film Chiller 1900 kW NH3Falling film chiller · Dairy technology
Industrial ice maker 34 t/day NH3
Industrial ice maker 34 t/day NH3Flake ice production · Food technology
Ice Bank with seven pumps (510 kWh)
Ice Bank with seven pumps (510 kWh)Ice storage · Refrigeration technology
Ice Bank silo made entirely of stainless steel
Ice Bank silo made entirely of stainless steelIce silo · Brewery technology
Automatic ice storage system
Automatic ice storage systemFlake Ice Storage · Food technology

Inside the production

Heat recovery from laundry wastewater with BUCO falling film chiller
Heat recovery from laundry wastewater with BUCO falling film chiller
Hydro cooling compared to air cooling
Hydro cooling compared to air cooling
Ice water cooling of raw milk in the dairy
Ice water cooling of raw milk in the dairy
Circular heat exchanger system
Circular heat exchanger system

Industries

Food processingDairiesFish processingMeat processingBakeriesBreweriesChemicalsPharmaceuticalsRefrigeration technologyPaper industryConcrete productionBiomass/Energy technology

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
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

MachineManufacturer / modelQuantityWorking areaYear builtSite
Laser welding systemTrumpf––––
Industrial ice machine (BUCO Ice Pack), NH3 pump mode, 150 t/dayBUCO––––
Industrial ice machine (BUCO Ice Pack), NH3 pump mode, 66 t/dayBUCO––––
Fully automated ice machine, NH3 pump mode, 34 t/dayBUCO––––

Additional services

Thermal calculation and designEngineering and constructionIndividual system integrationProcess optimization and revampingEnergy and resource efficiency studiesTechnical due diligence and plant consultingBasic engineering for new production plantsIce water cooling

History

  1. 2007

    Heat Transfer Technology AG founded by Sven-Olaf Klüe on 13.11.2007 in Zug.

  2. 2015

    BUCOdelot falling film ice makers have been in operation for over 20 years; more than 200 systems in operation.

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