PTE Mk.II holding electric stationary furnace up to 900 °C

Low operating costs and minimal structural dimensions

PTE Mk.II furnaces are used as holding furnaces for various aluminum alloys up to Tmax 900 °C in the furnace chamber. They are designed in an octagonal design with an emphasis on energy savings, and we also aimed to reduce the dimensions of the device. We succeeded in this, so PTE Mk.II furnaces find their place even in foundries with limited space for furnace installation.

The PTE Mk.II furnaces belong among the most effective and energy-efficient facilities on the market for holding aluminium. And this is not only because we have reduced their power needs to a minimum, but also thanks to their new insulation system and the innovative system of fixing the heating spirals into the grooves of the refractory castable block, which optimally accumulate the working temperature in the furnace chamber. The efficiency of the furnace is verified by energy audits performed at our customers.

The PTE Mk.II even won an award in the “Golden Medal” contest at the MSV 2012 engineering trade fair in the “Best Innovative Exhibit – Energy Efficient Product” category.

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Benefits

Easy to install, easy to control
Efficient use of heating output
Low operating costs
24-month warranty
Even temperature load for the crucible
Easy replacement of both heating elements and crucible
Option to convert to transport version
24-month warranty for the first set of heating elements

Charge treatment technology

Melting of aluminium and aluminium alloys
Holding of aluminium and aluminium alloys

Technical parameters

Furnace equipment

Energy savings

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Furnace type	Capacity in kg Al	Tmax°C	Tmax for long-term operation °C	Recommended operating temperature range in °C	Crucible type: Noltina	Volume of crucible in l	Loading height* in mm	Weight** in kg	Input in kW	Protection***	Voltage V
PTE 100/09 Mk.II	105	900	800	650 – 850 (in crucible)	A 300	40	780	440	15	32/3	400
PTE 200/09 Mk.II	185	900	800	650 – 850 (in crucible)	BU 200	70	840	545	15	32/3	400
PTE 300/09 Mk.II	275	900	800	650 – 850 (in crucible)	BU 300	110	940	775	22	40/3	400
PTE 400/09 Mk.II	320	900	800	650 – 850 (in crucible)	BU 350	135	1140	660	22	40/3	400
PTE 500/09 Mk.II	480	900	800	650 – 850 (in crucible)	BU 500	180	1090	880	27	50/3	400
PTE 650/09 Mk.II	590	900	800	650 – 850 (in crucible)	BU 600	220	1290	1115	27	50/3	400
PTE 800/09 Mk.II	970	900	800	650 – 850 (in crucible)	BU 800	300	1390	1200	38	63/3	400
PTE 900/09 Mk.II	1080	900	800	650 – 850 (in crucible)	BN 900	370	1490	1300	38	63/3	400
PTE 1200/09 Mk.II	1250	900	800	650 – 850 (in crucible)	BN 1200	470	1640	1450	40	80/3	400

Furnace dimensions by lid variant

Furnace type	Furnace dimensions – manual lid (h × w × d) mm	Furnace dimensions – automatic opening lid (h × w × d) mm
PTE 100/09 Mk.II	950×1125×950	950×980×1120
PTE 200/09 Mk.II	1035×1185×1035	1035×1035×1205
PTE 300/09 Mk.II	1125×1285×1125	1125×1135×1295
PTE 400/09 Mk.II	1125×1485×1125	1125×1335×1295
PTE 500/09 Mk.II	1285×1635×1285	1285×1280×1470
PTE 650/09 Mk.II	1285×1835×1285	1285×1480×1470
PTE 800/09 Mk.II	1400×1935×1400	1400×1605×1605
PTE 900/09 Mk.II	1400×2035×1400	1400×1705×1605
PTE 1200/09 Mk.II	1400×2235×1400	1400×1855×1605

Furnace’s hourly consumption in stabilised state (kWh) – full furnace, new crucible

Furnace type	Holding at 700 °C Closed lid	Holding at 700 °C Open lid	Holding at 800 °C Closed lid	Holding at 800 °C Open lid	Melting output in kg Al/hour
PTE 100/09 Mk.II	1,9	3,1	2,5	4,7	27
PTE 200/09 Mk.II	2,3	4,4	2,9	6,8	27
PTE 300/09 Mk.II	2,9	6,1	3,6	9,5	40
PTE 400/09 Mk.II	3,0	6,2	3,8	9,6	40
PTE 500/09 Mk.II	3,6	9,6	4,6	15,2	50
PTE 650/09 Mk.II	3,9	9,3	5,0	14,7	50
PTE 800/09 Mk.II	4,7	12,4	5,9	19,6	73
PTE 900/09 Mk.II	4,9	12,5	6,1	19,8	73
PTE 1200/09 Mk.II	5,2	12,7	6,5	20,0	73

*The distance from the floor up to the top edge of the crucible’s protective collar.
**The weight of the furnace with the automatic lid is increased by approximately 50 kg.
***Protection can vary depending on the accessories selected for an extra charge.

Subject to technical changes.

Standard equipment

Ht40T controller (3 programmes with 10 steps each)
Ht700 limit unit
Resistance heating (heating spirals)
Insulation using refractory concrete castable shaped blocks, a mineral-fibre mat, and microporous insulation
Protective collar of crucible made from grey iron
Manual lid
Emergency drain at the bottom of the furnace, with flap
Limit thermocouple of the S type and control thermocouple of the K type
Contactless switching relay for SSR noise-free operation
Residual current protector
Braces at the bottom of the furnace to ease manipulation using a forklift truck for the PTE 400/11 and higher cubic capacities
Connection between the furnace and switchboard, within a metal hose with a plastic protector, length of up to 5 m
Wall switchboard

Optional accessories available at additional cost

Crucible
Charge thermocouple of the K type with protective tube
Thermocouple of the K type in the wall of the crucible
Work cycle monitoring (elektroměr, datalloger)
Preparation for connecting the lid with the die casting device dispenser
Optic indicator of the state of the heating elements
System to check for cracks in the crucible
Measuring loop calibration (thermocouple + controller)
Connection of the furnace with the switchboard, within a metal hose with a metal sheath. The metal hose with a protective metal sheath on the surface always should be used for hoses with lengths exceeding 5 m.
Signalling when the temperature drops below 650 °C

Custom additional components

Pedal-controlled lid automatically opening upwards

Note: When combining accessories (at additional cost), consult with our technical office.

PTE Mk.II holding electric furnaces will save you up to a third of your energy costs

Thanks to the use of modern insulation materials, the innovative system of fixing the heating coils in the grooves of the refractory castable blocks, the minimum installed power consumption and the innovative octanogal design, significant energy savings are ensured in the operation of these furnaces. Savings will further increase when operating an oven with a closed lid, or an oven equipped with an automatic hinged lid.

As an example, we present the PTE Mk.II 500/09 furnace consumption measurement when holding 500 kg of aluminium when compared with a standard available holding furnace:

From energy audits and measurements, we know that the annual operation of the PTE Mk.II holding furnace results in the following savings compared to conventional holding furnaces:

PTE-MkII-savings.pdf

25-member design team

6 custom projects per month

Testing of your specific charges