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
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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 300 110 940 660 22 40/3 400
PTE 400/09 Mk.II 320 900 800 650 – 850 (in crucible) BU 350 135 1140 775 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 crucibles 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:

 
 
Almost 20.000 furnaces manufactured
Our own team of maintenance technicians
25-member design team
6 custom projects per month
Testing of your specific charges

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