NEW Italimpianti FI

Listing description

fim-45cpu
Technical Specifications:
The furnace is ideal to melt precious metals. All ITALIMPIANTI ORAFI induction melting furnaces are fitted with static frequency converters. A high efficiency of the electrical output that drastically reduces electricity consumption, maintaining the production rate,
is obtained by the frequency conversion system used. The
modular construction of the electric circuit board greatly simplifies maintenance operations and guarantees high reliability even in the most demanding working conditions. The highest technical standards used to design the inductors along with the modular construction and the use of only high quality materials guarantee maximum production even in the worst conditions. Technical data of the furnace
.
Capacity of the crucible

: 75 Kg of AG or 110 Kg 18 Kt Au .
Melting time

: 40 minutes .
Dimensions

: 900x1000x1870 mm (L x W x H) .
Interchangeability of the crucible to melt different precious alloys .
Automatic temperature control of the metal with a platinum, 10 % platinum-rhodium thermocouple Technical data of the converter
.
Power output

: 40 kW .
Working frequency

: 3.5-4 KHz .
Plant power hook up

: 45 KVA .
Power-supply tension (3 phase/50 HZ)

: 380 V, +/- 6% .
Power factor (cosF-i)

: 0.9 .
Required cooling power (generator/furnace)
: 21500 Kcal/h .
Min pressure for the cooling water pump

: 3 Bars .
Cooling water inlet temperature

: 25? + 35?C The converter is fitted with a demineralised water cooling system consisting
of a pump, an internal deioniser with a conductivity sensor and a heat exchanger accessible from the outside so that it can be connected to the general cooling system of the factory. Monitoring on the display of the process parameters, electrical conductivity, as well as the working parameters of the converter (tension frequency and the absorbed power). Computerised alarm diagnostics for 16 alarms or warnings which the worker must take note of for the system to work properly. By simply pressing a button, instructions and advice appear on the display. Memorisation of the last 20 alarms which allows a rapid diagnosis of any eventual problems. Closed ring power regulation which allows the system to absorb the set power regardless of the quantity and type of metal to melt. The internal environment of the converter is conditioned by an air-water exchanger. Threephase power-supply transformer :
Nominal power: 45 KVA
Nominal tension : depends on where the machines
Allowed fluctuation of the electrical mains : +/- 10%
Dimensions : Generator : 850x950x1800 mm (L x W x H)
MELTING FURNACE
The furnace is made up of a strong iron frame with 12 mm thick stainless steel sides to reduce losses due to inductive phenomena. The coil for induction heating is immersed in refractory
cement. Both crucible and coil are held in a resin and fibre glass casing of adequate thickness. The crucible tilting system is hydraulic, by means of two double-effect pistons with adjustable speed. The crucible spins around an imaginary axis passing through
its edge. The furnace is equipped with two propane gas burners to protect the metal and the crucible edge from oxidation. The furnace is also equipped with a timer which automatically stops both propane gas inflow and coil cooling pump after the generator has been stopped.

This equipment is located in US