Tempering is nuts and bolts. The security of your production equipment and consequently also of your production process depends largely on that how your production equipment is tempered. Failures of your equipment can affect the productivity and, therefore,the results of your enterprise. Demand-oriented cooling and tempering equipment of DELTATHERM® provide frictionless operation of the production systems in all branches of industry.

With our many years' experience in the construction of cooling and tempering systems in the temperature range from -150°C up to +400°C and thousands of installed systems, we can find a device that you need quite easily.

Irrespective of your enterprise's dimensions, cooling and tempering systems are a primary component of almost every production operation.

Here is only a small abstract of industrial operational area:

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In the field of laser technology, DELTATHERM®, one of the leading systems producers for cooling equipment, covers a wide range of applications. We offer cooling technology solutions for laser cutting and welding, laser coating and marking, laser-beam hardening as well as hard soldering, spot welding and roll seam welding done by laser.

What has to be cooled in a laser system?

In a laser system, the converters, switch cabinets, beam sources, beam guides, and with diode lasers, the laser diodes have to be cooled directly.
For CO2 lasers, the predominately required temperature constancy of the coolant must be <=+/-1 K, while diode lasers require a temperature constancy of <+/- 0.5 K and the water outlet temperature from the cooling device varies between roughly +15°C and +30°C.

The main focus with such systems is on the water quality. Extremely small coolant ducts in the laser necessitate the purest water possible. To rule out problems with water conductance, the cooling systems are often operated with deionised water (DI water) and desalinization tablets, which of course places much importance on the choice of materials (stainless steel and special plastics). For some special laser cooling equipment it is possible that, for example, the cooling switch cabinet requires a lower temperature than the lens circuitry. In these cases, we offer our customers customized solutions.

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DELTATHERM® cooling equipment can be used in many different ways in welding and cutting systems. With MIG/MAG welding, plasma cutting and of course with resistant welding, cold water is needed. In these cases, the water outlet temperature from the cooling device is between approx. +15°C and +30°C.

What has to be cooled in a welding system?

With MIG/MAG welding, the welding electrodes are cooled to ensure longer service lives of the electrodes which, due to electric arcs, become very hot, while in resistance welding the electrodes as well as the welding
transformer need cooling.

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Our cooling and temperature control equipment is employed here for the cooling of tools and hydraulic cooling.

The liquefied plastic is brought into the tool with an extruder screw and stays there until it solidifies. For a continuous demoulding process, the tool, greatly heated by the inserted plastic, is constantly tempered. In doing so, our high-performance temperature control units, cooling devices and refrigerators stand out due to their short cycle times, stable demoulding processes and high process stability.

Furthermore, the hydraulics, needed for the opening and closing of the mould, are kept at oil temperatures of <+60°C, which is done with the help of an active cooler (compression cooling device) or a passive cooler (air cooler or cooling tower).

Extruders:

With the extrusion of pipes, cables, treads, or rubber, the malleable endless sling made from plastic or rubber is cooled with the help of a downstream water bath. The temperature of this water bath is kept as constant as possible, whereas due to the high output rate, very high cooling capacities are essential with water temperatures of approx. +8°C to +30°C.

The use of our cooling devices considerably decreases production operating costs, as fresh water is not necessary for the cooling. Through the continuous, closed water circulation,
calcification of the cooling pathways in the machine and extruder is prevented.

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Machining centres for turning, milling and grinding machines with high-speed spindles which make up to 200,000 rotations per minute constitute the focus of our cooling systems for main and opposed spindle motors, torque motors, linear actuators, machine beds, switch cabinets, and work pieces. For these purposes water, oil, emulsions and additional cooling fluids are used as cooling agents.

Among others, specific demands on the cooling systems are:

• Extreme temperature stability of +/- 0,1 K
• Maintaining the coolant temperature in against the machine bed or ambient temperature
• Flow control for spindle protection
• DC control voltage
• Direct or indirect cooling of dielectric fluid
• Extreme ambient conditions such as oleaginous air and temperatures of up to +50°C
• Continuous operation, 24 hours a day, 365 days a year

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The demands on temperature control systems concerning temperature constancy, flexibility, automation and environmental impact are growing every day.In order to obtain reproducible results for our customers regarding quality assurance, we respond to individual requests with our modern heating and cooling modules.

DELTATHERM® satisfies with its long-time experience and an unrivalled in-house production depth of standard as well as special machines and offers optimal solutions in the -100°C to +400°C temperature range.

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Rotating, drilling, milling, cutting, and sanding. Steel and stainless steel, aluminium and cast iron, non-ferrous metals and silicon as well as graphite and various plastics. Machine tools must do every task they are given to do. With nearly every type of chip metal working, cooling lubricants are needed which becomecontaminated with shavings and dust. The emulsions and oils in cooling lubricant filtrations, which are often highly contaminated, are always kept precisely at temperature and cooled with our dipped and continuous-flow coolers.