Workpiece cooler SerieS WkT and dVTSafeguarding quality Speeding-up production

Customizedrefrigeration technologyMade in Germany

Lahntechnik – your system partner for customized refrigeration technology

For more than 50 years now we have been planning, developing and manufacturing individually customized as well as standard

refrigeration units.

We aim to be a development partner to our

customers and we are committed to the

continuous improvement of our performance,

efficiency and competitiveness. In order

to maximize value each technical solution

is based on in-depth analysis of individual

requirements resulting from a thorough

consulting process. Our expertise in tailor-

made solutions depends to a great extent on

customer input in the development process.

We focus on providing comprehensive

engineering services so that we can respond

competently to customer requirements and

guarantee fast and individually designed

solutions.

Our refrigeration know-how is supplemented

by in-house construction services, sheet

metalworking and paint shop facilities which

enable the fast and seamless development

and production of highly customer-specific

solutions.

We implement stringent quality controls

as standard. Our process quality has been

certified as compliant with the DIN ISO 9001

standard for many years now. This high

standard of quality is also documented by our

status as supplier of refrigeration technology

to many German automobile manufacturers.

Our workpiece coolers find use in all industrial processes where rapid, but workpiece-orientated and accurate cooling is necessary following process-related heating.

Workpiece cooler solutions offer clear advantages:

n Shortening cycle times in production lines

n Quality security through precisely controllable temperature gradients and partially variable cooling

n Gains in production space through no need for cooling lines

compact modular construction, individual design,

demand-oriented cooling process, high reliability

Design of the workpiece cooler is carried out in line with individual specifications, taking into account factors such as cooling medium availability and cooling-related conditions for the workpiece. And so, each and every workpiece cooler is per-fectly integrated into the customer-specific production process.

Workpiece cooler – individually designed

SerieS WkT and dVT

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Piece by Piece More quaLity for Production and Product

Our units are designed in a versatile and modifiable modular construction, so that they can be adapted to nearly all possible installation conditions. Even for very specific tasks, space-saving solutions and reproducible high quality can be reached.

According to the availability of the cooling medium, our series WKt and dVt are the ideal choice.

Planning security through self-evident series of tests

As the cooling time is dependent on shape, material, surface and thickness of the workpiece, cooling curves and thereby the required length of the tunnel are determined in our testing facilities.

Additionally, we optimize the cooling process with different arrangements of nozzles, air speed at the nozzle exits and cooling air temperatures through simulation and tests. Based on comprehensive test results we guarantee a cooling solution which is precisely adapted to specific production requirements thus ensuring highest standards of quality and efficiency.

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the following parameters determine the required cooling power:

n Cycle time

n Workpiece weight and workpiece thru-put per hour

n Workpiece material

n Entrance / exit temperature of the workpiece

n Air leakage rate

n Fan power of the circulatory air system

oPerationaL safety throuGh exPerience and serViceGuaranteed safe installation and function through:

n Interdisciplinary collaboration with all major conveyor manufacturers

n Efficient air nozzle configurations via workpiece-related optimized air speed and air flow

n Workpiece testing in own laboratory will ensure the best configuration of your cooling tunnel

n Commissioning and maintenance on-site

Workpiece cooler DVT series with decentralized control and frequency- controlled operation

Workpiece cooling unit DVT series with under-floor as water-cooled version with optimized differential temperature regulation

Our workpiece coolers have to undergo extensive

functional and performance tests.

quality and service as a principle

Our production and our products comply with the requirements of DIN ISO 9001 and DIN EN 378, the F-Gas Regulation, the EU Machinery Directive as well as the valid German VDE and UVV Regulations, consequently the coolers comply with the required high quality standards. Our professional service covers consulting, project planning, commissioning, maintenance and on-site service as well as delivery of spare parts – including a 24-hour hotline.

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eVery sPeciaL requireMent can be fuLfiLLed:

Variants ...

... and oPtions at a GLance

n Intelligent PLC control and rpm-regulated motors enable energy savings of up to 70 % in comparison to conventional units via adaptation of the cooling power towards – the current workpiece temperature – the number of workpieces passing through

n Contact-free temperature measurement of the workpieces

n Adapting to and integration into customer-related control environment

n Entrance / exit zones on the cooling unit acc. to workpiece-related demands: air-curtains for contact- and dirt-free entrance / exit of workpieces or lamellae curtains, brushes, profile-contoured sheet metal entrance / exit, high-speed doors

n Standard air filtration class G3 with cleanable metal filter mats or pocket filters

n Air filter in fine dust class up to clean-room quality

n Differential value regulation: workpiece temperature is set depending on room temperature

Workpiece cooling equipment standing on own feet – can be installed above existing conveyor

Workpiece cooling equipment without own feet – can be installed on existing conveyor

Workpiece cooling equipment with under-floor – existing conveyer can be inserted

Customized cooling technology for trade, research and industry

Functional layout series WKT

Functional layout series DVT

our series WKt and dVt

The choice of cooling medium whether water-cooled or air-cooled systems depends on availability.

series WKt

cooling by use of available cold water

The WKT series requires a cold or cooling water network with a temperature level under the desired workpiece temperature. Cold / cooling water is supplied to a heat-exchanger, which in turn cools the air. The cooled air exiting is transported to adjustable nozzles which blow onto the workpiece.

series dVt

cooling with classical refrigeration circuit

Here an integrated active refrigeration circuit is responsible for the required heat removal. The advantage of this version is that almost unlimited cooling temperatures can be created and a process which is also almost independent of ambient temperature can be realized.

Cooling layout for your special requirements

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Product features

n High efficiency and additional availability through acceleration of cycle times

n Significant time savings due to moisture-free cooling of the workpieces within some minutes

n Quality improvement into the next production process through evenly-distributed tension-free cooling

n Gains in production area through elimination of traditional cooling lines

n Coherent integration into existing production lines via especially variable and adaptable modular construction

n Maximum operational safety through of robust and reliable cooling system technology

n 5-year warranty with maintenance contract

Lahntechnik workpiece coolers comply with statutory environmental regulations.

DVT with rpm-control for compressor and ventilator

Workpiece cooling WKT series

Workpiece cooling unit DVT with integrated conveying technology on transport rollers

Fully-automated workpiece cooling equipment DVT series with PLC control and color display

Customizedrefrigeration technologyMade in Germany

LAHNTECHNIK GmbH duotemp Kältetechnik GmbH

Taunusstraße 10 56377 Nassau/Lahn Germany

Phone: +49 2604 9555-0 Fax: +49 2604 9555-150

E-mail: info@lahntechnik.de www.lahntechnik.de

WKT

/DVT

E 1

1-20

13

Mönchengladbach

Trier

Mosel

Frankfurt

Mainz

A61

Rhein

Wiesbaden

Lahn

Limburg

Koblenz

Köln

Montabaur

Autobahn triangleDernbach

GiessenBad Hersfeld

Nassau

A66

A5

A3

A48

A63

B260

Darmstadt Mannheim