PT Mk.II melting electric stationary furnace up to 1100 °C

The furnace that saves both money and space

When we designed the PT Mk.II melting and holding furnace for a variety of metal alloys, we emphasised energy savings, and it was also our goal to reduce these facilities’ dimensions. We have succeeded, so the PT Mk.II will find a place even in foundries with limited space for furnace installation.

We achieved the smallest possible dimensions thanks to our use of the latest insulation materials and a new system for mounting the heating spirals. We placed them in the grooves of refractory castable shaped blocks, preventing them from overheating and protecting them from molten aluminium if the crucible should happen to crack.

The PT 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. 
 

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Benefits

  • Easy to install, easy to control
  • 24-month warranty
  • Even temperature load for the crucible
  • Efficient use of heating output
  • Easy replacement of both heating elements and crucible
  • Low operating costs
  • 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
PT-MkII-EN-(1).jpg
PT-PTE-Mk-II__orez_web3.jpg PT Mk.II
PT-PTE-Mk-II_open-orez_web2.jpg PT Mk.II
PT-PTE-Mk-II_orez_web1-(1).jpg PT Mk.II
PT-MkII-EN-(1).jpg
PT-PTE-Mk-II__orez_web3.jpg PT Mk.II
PT-PTE-Mk-II_open-orez_web2.jpg PT Mk.II
PT-PTE-Mk-II_orez_web1-(1).jpg PT Mk.II

Technical parameters

Furnace equipment

Energy savings

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
PT 100/11 Mk.II 105 1100 1000 650 – 850 (in crucible) A 300 40 790 450 23 40 400
PT 200/11 Mk.II 185 1100 1000 650 – 850 (in crucible) BU 200 70 850 555 46 80 400
PT 300/11 Mk.II 275 1100 1000 650 – 850 (in crucible) BU 300 110 950 670 50 100 400
PT 400/11 Mk.II 320 1100 1000 650 – 850 (in crucible) BU 350 135 1050 758 54 100 400
PT 500/11 Mk.II 480 1100 1000 650 – 850 (in crucible) BU 500 180 1100 1550 61 125 400
PT 650/11 Mk.II 590 1100 1000 650 – 850 (in crucible) BU 600 220 1300 1800 75 125 400
PT 800/11 Mk.II 970 1100 1000 650 – 850 (in crucible) BU 800 300 1400 2250 95 160 400
PT 900/11 Mk.II 1080 1100 1000 650 – 850 (in crucible) BN 900 370 1500 2300 110 200 400
PT 1200/11 Mk.II 1250 1100 1000 650 – 850 (in crucible) BN 1200 470 1650 2350 130 250 400

Furnace dimensions by lid variant

Furnace type Furnace dimensions – manual lid (h × w × d) mm Furnace dimensions – automatic opening lid (h × w × d) mm
PT 100/11 Mk.II 950×1360×950 950×980×1120
PT 200/11 Mk.II 1035×1420×1025 1035×1035×1205
PT 300/11 Mk.II 1125×1520×1115 1125×1135×1295
PT 400/11 Mk.II 1125×1720×1115 1125×1335×1295
PT 500/11 Mk.II 1285×1670×1275 1285×1280×1470
PT 650/11 Mk.II 1285×1870×1275 1285×1480×1470
PT 800/11 Mk.II 1400×1970×1390 1400×1605×1605
PT 900/11 Mk.II 1400×2070×1390 1400×1705×1605
PT 1200/11 Mk.II 1400×2220×1390 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
PT 100/11 Mk.II 1,9 3,1 2,5 4,7 64
PT 200/11 Mk.II 2,3 4,4 2,9 6,8 133
PT 300/11 Mk.II 2,9 6,1 3,6 9,5 143
PT 400/11 Mk.II 3,0 6,2 3,8 9,6 155
PT 500/11 Mk.II 3,6 9,6 4,6 15,2 175
PT 650/11  Mk.II 3,9 9,3 5,0 14,7 217
PT 800/11 Mk.II 4,7 12,4 5,9 19,6 275
PT 900/11 Mk.II 4,9 12,5 6,1 19,8 300
PT 1200/11 Mk.II 5,2 12,7 6,5 20,0 350
* The distance from the floor along 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 accessories chosen (at additional cost).

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
  • output switching
  • 3 ammeters
  • Contactless switching relay for noise-free operation - SSR
  • 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
  • Ht205 controller
  • work cycle monitoring with USB output
  • preparation for connecting the lid with the batching equipment of a casting device
  • 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.
  • RS232 or EIA485 interface (software + interface), it is necessary to use a controller (Ht205)
  • Signalling when the temperature drops below 650 °C
 

Custom additional components

  • Pedal-controlled lid automatically opening upwards


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

PT 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. Furnace PT Mk.II achieves similar savings in holding mode and at the same time has sufficient installed input for melting mode:

 
 
 

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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