Details
Temperature Control Units
Temperature control units heat die casting dies to their required operating temperature and keep the thermal balance within a controlled range during production. This helps to control die filling, solidification, component quality and cycle time more reliably.
FISS Machines offers used water and oil temperature control units, pressurised-water units, single- and multi-circuit units as well as mobile cooling and temperature control systems. Selection depends not only on the maximum flow temperature, but also on heating and cooling capacity, flow rate, pressure, number of circuits and the existing die channels.
Die Temperature
Temperature control is a closed thermal circuit
During every casting cycle, the die absorbs heat from the molten metal. The temperature control unit transfers heat to the die or removes it again. The goal is not the lowest possible die temperature, but a reproducible thermal balance.
Areas that are too cold can impair die filling. Excessive or strongly fluctuating temperatures can affect both the die and component quality. Flow rate, heating capacity, cooling and control must therefore be matched to the die, alloy and cycle.
Water or oil?
The temperature-control medium determines the usable temperature range, response behaviour and the requirements placed on pumps, seals, hoses and die channels.
Water-based units provide effective heat transfer and fast response behaviour. Closed pressurised-water systems can be used for higher operating temperatures.
Oil temperature control units are used when the required flow temperature exceeds the usual water range or when low-pressure, high-temperature operation is required.
Which specifications must match the die and casting process?
The model designation alone says little about suitability. A used temperature control unit should be selected according to its actual thermal capacity, hydraulic circuit and the planned process conditions.
What stable die temperature control achieves in daily production
Good temperature control does not solve every casting issue, but it creates consistent thermal conditions for a reproducible process.
A stable thermal balance supports consistent die filling and solidification. Dimensional variations, surface defects and thermally induced scrap can therefore be reduced.
When the die and temperature-control circuit reach their intended condition more quickly after production starts, the process can stabilise sooner. Restarting after interruptions is also easier.
Controlled temperature distribution reduces extreme local temperature changes. This can lower thermal stress on the die and create the basis for a longer die service life.
The temperature control unit is part of the complete cold chamber die casting cell
Die temperature control works together with metal dosing, die spraying, robot handling and machine parameters. A temperature control unit should therefore not be evaluated in isolation, but in relation to the die, die casting machine and existing automation.
What to check when buying a used temperature control unit
In addition to manufacturer and year of manufacture, condition, actual performance data, system tightness and compatibility with the existing die circuit should be checked.
Inspection and refurbishment
Depending on their condition, used temperature control units can be technically inspected, cleaned, resealed or refurbished. Typical work includes pumps, heaters, valves, heat exchangers, hoses, sensors, control systems and electrical components.
Integration into production
Before commissioning, the medium, hose routing, die connections, cooling-water supply and control interfaces should be coordinated. With multi-circuit units, clear allocation of the individual die zones is also important.
Used temperature control units from established manufacturers
FISS Machines trades used temperature control units and mobile cooling systems from various manufacturers. Depending on availability, units from Robamat, Thermobiehl, Tool-Temp, Regloplas, Single, Lethiguel and other manufacturers may be considered.
Buy used temperature control units
FISS supports the selection of a suitable unit, technical clarification, condition assessment, transport and coordination of the necessary connections for the die casting cell.
Sell temperature control units
FISS supports the evaluation and international marketing of used temperature control units. In addition to brokerage and international marketing, direct purchase by FISS may also be an option depending on the project.
