Forni a crogiolo ribaltabile K riscaldamento elettrico, per la fusione ed il mantenimento della temperatura

Elevata capacità fusoria con buona uniformità della temperatura nel materiale fuso.

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Controllo dei processi

Funzione e attrezzatura

Forno a crogiolo ribaltabile K 150/12

Forno a crogiolo ribaltabile K 150/12 e forno d‘attesa T 180/11 come sistema di prefusione e mantenimento della temperatura

Riempimento della siviera di trasporto con un forno a crogiolo ribaltabile K 360/12

Forno basculante K 40/13 con prolungamento dello scarico (fonderia di sculture Knaak)

Three tilting furnaces with work platform for melting of aluminum

Riempimento di uno stampo con bronzo liquido (fotografo Andrea Künstle)

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The electrically heated tilting furnaces are characterized by very good melt quality and high melting performance with optimum energy efficiency. They are ideal as a flexible solution for pre-melting but also for direct pouring into large moulds.

K ../12 for aluminum and zinc alloys
K ../13 for copper alloys such as bronze or brass
Free-radiating heating elements on support tubes for long service life and simple replacement
Twelve months warranty on heating elements
Multi-layer insulation for optimum energy efficiency and low external wall temperatures
Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
Incl. crucible
Electro-hydraulic tilting device with safe two-hand operation on the furnace
Uniform and precise pouring due to optimum pivot point
Emergency outlet for safe draining of the melt in case of crucible breakage
No exhaust gas discharge needed
Integrated safety system which continues to operate the furnace at reduced power in case of malfunction in the thermocouple, in order to prevent the freezing of the melt
Over-temperature limiter in furnace chamber for protection against overheating. The limiter switches the heating off when the set limit temperature is reached, and only switches it back on after the temperature has fallen again.
Low-maintenance furnace chamber control with temperature measurement behind the crucible
Defined application within the constraints of the operating instructions

Equipaggiamento aggiuntivo

Safety fence
Work platform for easy charging
Collecting pan under the emergency outlet
Crucible breakage monitor with visual and audible signal (only for models K ../12)
Bath control with thermocouples in the furnace chamber and in the melt. The furnace temperature is controlled through the melt. Temperature overshoots are reduced, thus the quality of the melt is improved
Heating system operated through thyristors
Multi-step switching of the furnace heat
Models with increased heating power
Process control and documentation via Nabertherm Control Center (NCC) for monitoring, documentation and control

Specifiche tecniche

Model	Tmax furnace	Tmax melt bath	Crucible	Capacity in kg			Heating power	Melting performance^3,6 in kg/h	Consumption melting⁶ kWh/kg	Consumption holding Lid closed/open	Outer dimensions⁵ in mm			Weight
	°C	°C		Al	Zn	Cu	in kW⁴	Al	Al	kWh/h	W	D	H	in kg
K 80/12	1200	1050	TP 287	180	470	-	50	126^¹	0.4^¹	4/10^¹	2050	1520	1580	1750
K 150/12	1200	1050	TP 412	330	870	-	60	147^¹	0.4^¹	5/12^¹	2120	1600	1860	2250
K 180/12	1200	1050	TP 412H	370	980	-	60	160^¹	0.4^¹	5/12^¹	2120	1600	1860	2450
K 240/12	1200	1050	TP 587	570	1500	-	80	180^¹	0.4^¹	8/17^¹	2260	1760	1860	3000
K 360/12	1200	1050	TBN 800	750	-	-	100	260^¹	0.4^¹	11/20^¹	2370	1810	1950	3500
K 400/12	1200	1050	TBN 1100	1050	-	-	126	295^¹	0.4^¹	12/22^¹	2370	1930	2100	3700
								Cu	Cu
K 10/13	1300	1150	A 70	20	50	70	16	47²	0.3²	5/8²	1890	1240	1440	1000
K 20/13	1300	1150	A 150	45	120	150	20	63²	0.3²	5/8²	1890	1400	1460	1300
K 40/13	1300	1150	A 300	90	240	300	26	84²	0.3²	5/8²	2000	1450	1540	1650
K 80/13	1300	1150	TP 287	180	470	550	50	190²	0.3²	6/11²	2050	1520	1580	1950
^¹Al at 700 °C ²CuZn at 1000 °C ³The specified melting performances are maximum values. In practice, approx. 80 % are achieved. ⁴Depending on furnace design connected load might be higher ⁵External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. ⁶ Values for other materials, e. g. zinc, on request