PT Mk.II electric melting 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 Mk.II

PT Mk.II

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	785	54	100	400
PT 500/11 Mk.II	480	1100	1000	650 – 850 (in crucible)	BU 500	180	1100	890	61	125	400
PT 650/11 Mk.II	590	1100	1000	650 – 850 (in crucible)	BU 600	220	1300	1125	75	125	400
PT 800/11 Mk.II	970	1100	1000	650 – 850 (in crucible)	BU 800	300	1400	1210	95	160	400
PT 900/11 Mk.II	1080	1100	1000	650 – 850 (in crucible)	BN 900	370	1500	1310	110	200	400
PT 1200/11 Mk.II	1250	1100	1000	650 – 850 (in crucible)	BN 1200	470	1650	1460	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 (not possible for PT 100/11 Mk.II)
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.