gwk Gesellschaft Wärme Kältetechnik mbH of Meinerzhagen at K 2019 in Düsseldorf -- K Trade Fair
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gwk Gesellschaft Wärme Kältetechnik mbH

Scherl 10, 58540 Meinerzhagen
Telephone +49 2354 7060-0
Fax +49 2354 7060-150

Hall map

K 2019 hall map (Hall 10): stand J39

Fairground map

K 2019 fairground map: Hall 10

Our range of products

Product categories

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.09  Ancillary equipment
  • 03.09.002  Heating and cooling technology
  •  Heating and cooling units

Heating and cooling units

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.09  Ancillary equipment
  • 03.09.002  Heating and cooling technology
  •  Water chillers

Water chillers

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.09  Ancillary equipment
  • 03.09.002  Heating and cooling technology
  •  Internal cooling equipment

Internal cooling equipment

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.09  Ancillary equipment
  • 03.09.011  Mould and die cleaning equipment

Mould and die cleaning equipment

Our products

Product category: Heating and cooling units

teco cs

Temperature controllers with water up to 225°C

Besides the development of innovative system solutions gwk Gesellschaft Wärme Kältetechnik mbH advanced the continuous extension and modernisation of their range of single temperature controllers and adapted these to the changing market requirements in close cooperation with customers.

The proven teco cs series was improved by installation of a user-friendly touch screen with new, integrated functions.

Update of the standard design
All standard units are equipped with an energy efficient constant heating control. Depending on the product version a flow rate measurement and control, whose actual value is indicated simultaneously with the actual and nominal values on the colour screen, is installed as standard or is optionally available. Temperature profiles are graphically indicated after selection of the corresponding menu function. By a simple touch on symbols on the start page useful functions like limit value monitoring, leak stop operation etc. can be selected. In order to supplement the operational safety maintenance intervals and advices are indicated as clear text on the service page.
The proven teco cs series was improved by installation of a user-friendly touch screen with new, integrated functions.

The 95°C series was extended by three versions with higher capacities. The new, cost-effective models are designed for larger consumers; they have heating capacities from 18 to 36 kW, cooling capacities from 50 to 120 kW and pump flow rates from 110 to 170 l/min.

- Self-optimizing gwk-logotherm microcontroller with high control accuracy (version t)
- Touchscreen for log in, control and monitoring of process parameters (version t)
- Intuitive operating interface with user-friendly menu navigation (version t)
- Measuring, indication and monitoring of the flow rate (version t)
- Integrated operating and service information (version t)
- Storage and recall of process parameters with memory card (version t)
- Wearless, energy-saving solid state heating control
- Return temperature indication (version t)
- Continuous monitoring of process parameters (version t)
- Splash proof electrics
- Ready to connect with 3 m long mains cable and CEE socket

t-versions always with VNC server via Ethernet, allows complete operation and administration from your PC, even worldwide via Internet.

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Product category: Heating and cooling units

protemp advanced

The premium temperature control for highest demands

Due to the design, dimensioning and selection of the used components, enersave temperature control systems are the most efficient systems on the market with the highest flow rates at operating point. By using an optional frequency inverter, the already high basic effi ciency can be more optimized and the pump characteristic curve can be optimally adapted to the respective operating conditions.

- Water temperature control unit up to 95°C -140 °C
- Cooling capacity: 105 - 717 kW
- Heating capacity 9 - 50 kW
- Digitization concept „protemp connect 4.0“
- Dual frequency version (50/ 60 Hz), motor IE3 class
- Energy consumption display
- Pump speed control
- OPC UA interface
- Stainless steel centrifugal pump and heaters
- Device casing 3 sides be opened without tools
- Automatic filling and refilling
- Pump dry run protection and bypass
- Leakage and level monitoring
- Temperature difference monitoring
- Maximum temperature monitoring
- Automatic water exchange
- Fine level heating control
- Control cabinet protection rate IP 54
- Sensor breakage monitoring
- Flow measuring
- Acoustic alarm
- Pressure measuring

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Product category: Heating and cooling units

integrat 80

The integrat 80 is used for the modular temperature control with water up to 140°C in the basic version with up to six temperature control circuits to be operated completely independently of each other. The basic version can be expanded with extension columns and up to 24 temperature control modules.

 As an option, the temperature control circuits can be extended with the 4-way distributor vtc with flow and temperature measurement. Thus, a maximum of 96 temperature control circuits can be monitored with the vtc 4-way distribution system.

In conjunction with the standard heating control system used as standard, a homogeneous temperature profile on the mould cavity surface is achieved in an extremely energy-efficient manner, as well as with constant cooling by using a motor valve. As an option, the pumps can also be operated with frequency control unit. The power requirement of the pump is continuously adjusted by means of the temperature difference control to the process performance changes, this improves the procedural results and contributes to energy savings.
The vertical design with a footprint of only 85 x 75 cm and the central electrical and cooling water connection, enable cost- and space-saving integration into production cells.

Users praise the intuitive and clear user guidance on the central screen. All process data is displayed numerically and graphically on a 7-inch touch screen with colour display. Various password-protected operator levels allow for the safe operation with storable process parameters.

The data can be transferred to external data carriers via an interface to the machine control and via a USB connection. The touch screen is located in the temperature control system itself.

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Product category: Water chillers


gwk Gesellschaft Wärme Kältetechnik mbH has advanced the continuous development and modernisation of its range of compact water chillers and adapted it to the changing market requirements in close cooperation with customers.  

Conversations and customer feedback are the key to our success. Increasing requirements and increasingly efficient production processes are only a few of the features that are more and more important to our customers. 

Easy operation via touch screen
The proven weco series has been upgraded by the installation of a user-friendly touchscreen with new integrated functions. By a light touch on symbols on the start page useful functions like temperature control, pressure control etc. can be selected. In order to supplement the operational safety, maintenance intervals and advice are indicated in clear text on the service page.

Air and compressor concept
Using powerful compressors in combination with other generously dimensioned components of the cooling circuit, a high degree of effectiveness is achieved. This results in low operating costs, high operating reliability and long service life of the chiller.
More options for exact temperature control
Thanks to a large number of useful options like redundant operating pumps, stainless steel pumps and various evaporator executions the modular machine design can be optimally adapted to the different fields of application.The overall technical design of the unit and the precise measurement and control technology coupled with tailor made microprocessor control enable a high temperature stability for every application.

Ratio is important
In close cooperation with our customers we learn about the expectations that our products have to fulfill in daily production. We take many details into account. One of these is proportions. The high capacity together with a compact footprint enable the chiller to be sited even in restricted areas.

- New fan concept
- Compact configuration
- Touch screen interface
- Set-up, connect, ready
- Reduce operating costs

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Product category: Water chillers

weco wd

Energy-efficient chillers with free cooling function and integrated temperature control circuits

With the decentralised solution, gwk adds a machine series that offers a high level of flexibility for numerous applications to its portfolio. The customer can individually and precisely set the ideal cooling water temperature for every production machine and for every process in production. Thanks to the direct connection to the consumer, there are no thermal losses, but instead a high flow rate and constant pressure.

The weco wd series consists of easy to operate plug&play machines that can easily be installed and commissioned. Three processes can be run with the solution: Free cooling, refrigeration process for low temperatures down to -5°C and temperature control up to 90 °C –everything can be chosen as desired. There is a total of four models with cooling powers between 14 kW and 36 kW (at 15 °C feed flow temperature) and heating powers between 9 kW and 36 kW.

The standard equipment includes a refrigeration circuit with digitally controlled compressor, an integrated free cooling function for energy-efficient operation at low outdoor temperatures and a temperature control circuit with constant heat control.
The standard scope of supply also includes the flow measuring device and pressure display with a pressure gauge in the circulating medium as well as a ball valve for the motor controller in the temperature control circuit. Optionally the weco wd can be implemented with a second temperature control circuit to control the temperature of the nozzle and cutter sides of the injection moulds differently.

The new gwk modulControl controller with fast 32-bit processor is used for the machines – the highperformance solution from the new gwk family of controllers. It has the logotherm display and control unit that has been independently developed with a modern 7-inch touch screen. The processor board
has been designed separately for improved safety and reliability. The inputs and outputs of different circuit boards can be chosen as desired. A network connection for remote servicing as well as inputs and outputs for sensors and messages are also included with the equipment. Updates are easy to complete using a USB connection or SD card.

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Product category: Mould and die cleaning equipment


Lime and corrosion are hidden cost factors. Inevitably, these two “enemies of temperature control channels” prolong the cooling time, reduce the process safety and have a negative influence on the parts’ quality. The problem occurs insidiously in each plastic processing company, because lime and corrosion gradually build an insulation layer in the cooling channels and are thus responsible for a deteriorating heat transfer. Often the problem is not recognized until the demanded parts’ quality cannot be achieved any longer or if the complete system breaks down.

The effect of cleaning the cooling channels of an injection mould is a reduction of cooling time up to 40 % (in individual cases even more), depending on the amount of deposits.

As a system supplier, gwk has been offering cleaning of components that have conducted water for a long time. The latest development, easy to use by the processor himself, is moldclean, a compact appliance which cleans polluted cooling channels in injection moulds and heat exchanger systems.

 gwk moldclean mc 1: 
The robust solution for the cleaning of temperature control circuits is available in two versions:
a low-cost entry-level model with one container and an alternative with two containers to optimize operating costs.The switch-over between the cleaning cycles can alternatively be made by automatic ball valves.
gwk moldclean mc 8: 
The innovative solution to clean up to 8 temperature control circuits simultaneously.
The end for costs – the beginning of a margin
The cleaning process can be accelerated by jet cleaning with compressed air in order to further reduce the chemical consumption. The innovative cleaning procedure reduces the costs per cleaning cycle by up to 50%.

- Cleaning (cleaning agent + compressed air impulses)
- Flow measuring
- pH-value monitoring
- Neutralization
- Re-establishment of quality of molded parts

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About us

Company details

For 50 years company gwk Gesellschaft Wärme Kältetechnik mbH has earned a name as a specialist company for innovative cooling technology. gwk is also a world renowned expert in the area of temperature control technology. Lead solutions for high-performance heating and cooling techniques are developed at gwk based on innovative technologies.
As a supplier for the whole temperature control process from cooling plants via heating process to water treatment, gwk is a competent and innovative supplier for customers who need high-quality cooling and heating technology products. Also in the area of close-to-cavity heating of mould inserts and mould cleaning, gwk supports its customers for many years.

gwk Gesellschaft Wärme Kältetechnik mbH
Scherl 10
58540 Meinerzhagen
Phone: +49 2354 7060 - 0
Fax: +49 2354 7060 - 150

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