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Heating & Drying Ovens

Vötsch heating and drying ovens for production and research are found in various branches of industry, including electronics, automobile production, plastics, metal working, the chemical and pharmaceutical sectors and many other areas.

Vötsch Industrietechnik have proven that even perfected and reliable products can be further developed

to reach a greater standard of perfection.

The new generation of units is available in 7 model sizes and can be supplied with a working chamber of

between 200 and 8000 litres and nominal temperatures of 250 °C, 300 °C and 350 °C.

These robust drying ovens are suitable for variety of heating and drying processes in production and research. The reliable module construction and the extensive range of accessories available allow them to be employed for a variety of applications.

Modern control and monitoring systems, in conjunction with software specially developed for these units, offer the possibility of linking up to 32 devices, if desired, and simultaneously controlling, monitoring and documenting their production results with a PC.

Process characteristics

Short process duration due to high volume of circulating air

Short recovery time due to automatic switch-off of heating and circulating air fan when door is opened

Homogenous temperature distribution, thanks to directed air ductwork

Application-orientated air ductwork, both horizontal (standard) and vertical (optional)

 

Flexible solutions . . . The principal advantages . . .

Production characteristics

Economical and environmentally friendly, thanks to the enhanced thermal insulation

Optimum thermal separation of inner and outer casing

Minimum loss of energy and effective operator protection when coating, thanks to the heating and circulating fan being switched off

A high degree of safety, thanks to:

Low external wall temperatures

Standard temperature selection limiter (for VTL)

“Cold” heating connection

Service and maintenance friendly

All heating and drying ovens naturally comply with EMC guidelines.

Drying combustible solvents

Processes which involve drying of surface coatings, mould and impregnated resin varnishes can lead to the air being enriched by released substances (e. g. solvents), forming an explosive compound. If a source of combustion is present at the same time it can lead to an explosion.

Play it safe at all times

The VTL series from Vötsch Industrietechnik enables you to safely control these heating and drying processes by limiting the quantity of solvent involved. The chamber drying ovens VTL comply with the extented safety requirements of EN 1539. A circulating air fan with an improved performance ensures that a thorough mixture is achieved, thus preventing enrichment through solvent concentrations.

A defined volume of hot air is continually conveyed outwards through the exhaust air fan and replaced with fresh air (dilution principle), thus preventing the formation of potentially explosive compounds.

To enable efficient operation to be achieved, the exhaust air can be reduced to 25 % by switching off the

exhaust fan when the main evaporation is completed.

The circulation and exhaust air volumes are monitored. Flow monitors switch off the heating immediately and permanently in the case of malfunctions (at a level lower than the required volume flow).

All the terminal connections of the individual components are welded in the inner casing to prevent the ingress of solvents into the thermal insulation and the resulting enrichment. The permissible quantity of combustible substances depends mainly on the field of application of the drying oven. There are different technical safety devices. Please contact us for a proposal of the most suitable solution for your special application.

The Vötsch heating and drying ovens are equipped with the MINCON or SIMCON self-monitoring,

digital measuring and control system. The input of process parameters and programs as well as the output of actual values, operating and error messages is done by means of a touch panel.

Software package for PCs

The Vötsch software can be used for complete documentation and graphic interpretation. By installing it on an optional notebook or PC, the user can create program profiles and document all process parameters under Windows. Parallel to that, the operator can use the full capacity of the PC under Windows.

Heating and Drying Oven TU 60/60

Drying Chamber for Coating Materials

Applications

The heating and drying oven TU 60/60 sets standards for the daily operation, both in the production and in the laboratory.

LTU 60/60 – Dryer for coating materials containing solvents.

Solvents are emitted during the drying of surface coatings, varnishes and impregnation resins, which, when mixed with air, can result in explosive atmospheres. LTU 60/60 was developed especially for these processes. The safety concept fulfils the requirements of the

EN 1539.

Advantages

Versatile

For the drying of combustible solvents (LTU 60/60)

Precise consistency of temperature throughout the entire work space

Small footprint, suitable for installation in laboratories

Short heating up time due to high powered heaters

Short drying cycles thanks to optimised air flow and extensive air exchange

Robust, for high charging loads

User-friendly operation

For heat treatment of material used by the aerospace & defence industries, Vötsch Industrietechnik offers the appropriate ovens which fulfil the requirements of the standard AMS 2750 D.