The GW series is a coreless medium-frequency induction melting furnace for steel, cast iron, stainless steel, copper, aluminum and their alloys. Capacity is catalogued from 0.1 ton through 40 ton, and the furnace is built to order for the metal, the melting rate and the local grid.
GW series, 0.1–5 t — factory sheet| Model | Rated capacity (t) | Rated power (kW) | Rated frequency (kHz) | Rated voltage (V) | Steel melting rate at 1600°C / 2912°F (t/h) | Cast iron melting rate at 1450°C / 2642°F (t/h) |
|---|
| GW0.1-100-1/2.5 | 0.1 | 100 | 1/2.5 | 750 | 0.11 | 0.12 |
| GW0.1-160-1/2.5 | 0.1 | 160 | 1/2.5 | 750 | 0.18 | 0.20 |
| GW0.15-100-1/2.5 | 0.15 | 100 | 1/2.5 | 750 | 0.10 | 0.11 |
| GW0.15-160-1/2.5 | 0.15 | 160 | 1/2.5 | 750 | 0.20 | 0.22 |
| GW0.25-160-1/2.5 | 0.25 | 160 | 1/2.5 | 1500 | 0.19 | 0.21 |
| GW0.25-250-1 | 0.25 | 250 | 1 | 1500 | 0.37 | 0.41 |
| GW0.5-250-1 | 0.5 | 250 | 1 | 1500 | 0.31 | 0.33 |
| GW0.5-350-1 | 0.5 | 350 | 1 | 1500 | 0.54 | 0.60 |
| GW0.5-500-0.5 | 0.5 | 500 | 0.5 | 1500 | 0.84 | 0.89 |
| GW1-500-0.5/1 | 1 | 500 | 0.5 | 1500 | 0.19 | 0.21 |
| GW1-600-0.5/1 | 1 | 600 | 1 | 1500 | 0.37 | 0.41 |
| GW1-750-0.5/1 | 1 | 750 | 0.5/1 | 1500/2400 | 1.27 | 1.31 |
| GW1.5-750-0.5 | 1.5 | 750 | 0.5 | 2400 | 1.15 | 1.17 |
| GW1.5-1000-0.5 | 1.5 | 1000 | 0.5 | 2400 | 1.58 | 1.65 |
| GW2-1000-0.5 | 2 | 1000 | 0.5 | 2400 | 1.56 | 1.62 |
| GW2-1500-0.5 | 2 | 1500 | 0.5 | 2400 | 2.58 | 2.85 |
| GW3-1500-0.5 | 3 | 1500 | 0.5 | 2400 | 2.43 | 2.75 |
| GW3-2000-0.5 | 3 | 2000 | 0.5 | 2400 | 3.36 | 3.79 |
| GW3-2500-0.5 | 3 | 2500 | 0.5 | 3200 | 4.35 | 4.90 |
| GW5-2500-0.5 | 5 | 2500 | 0.5 | 3200 | 4.20 | 4.74 |
| GW5-3500-0.5 | 5 | 3500 | 0.5 | 3200 | 5.16 | 5.82 |
GW series, 8–40 t — factory sheet| Model | Rated capacity (t) | Rated power (kW) | Rated frequency (kHz) | Rated voltage (V) | Steel melting rate at 1600°C / 2912°F (t/h) | Cast iron melting rate at 1450°C / 2642°F (t/h) |
|---|
| GW8-3000-0.5 | 8 | 3000 | 0.5 | 3200 | 5.04 | 5.71 |
| GW8-4000-0.5 | 8 | 4000 | 0.5 | 3200 | 6.02 | 6.53 |
| GW8-6000-0.5 | 8 | 6000 | 0.5 | 3200 | 8.36 | 8.76 |
| GW10-4000-0.5 | 10 | 4000 | 0.5 | 3200 | 6.00 | 6.42 |
| GW10-5000-0.5 | 10 | 5000 | 0.5 | 3200 | 7.68 | 8.21 |
| GW10-6500-0.5 | 10 | 6500 | 0.5 | 3200 | 10.37 | 11.41 |
| GW12-5000-0.25 | 12 | 5000 | 0.25 | 3400 | 7.86 | 9.65 |
| GW12-6000-0.25 | 12 | 6000 | 0.25 | 3400 | 10.11 | 11.82 |
| GW12-7500-0.25 | 12 | 7500 | 0.25 | 3400 | 12.21 | 14.20 |
| GW15-8000-0.25 | 15 | 8000 | 0.25 | 3400 | 12.98 | 14.89 |
| GW15-10000-0.25 | 15 | 10000 | 0.25 | 3400 | 13.76 | 15.96 |
| GW20-10000-0.25 | 20 | 10000 | 0.25 | 3400 | 13.56 | 15.62 |
| GW20-12000-0.25 | 20 | 12000 | 0.25 | 3400 | 17.58 | 19.85 |
| GW30-12000-0.15 | 30 | 1500 | 0.15 | 3400 | 17.23 | 19.65 |
| GW30-16000-0.15 | 30 | 2000 | 0.15 | 3400 | 23.36 | 25.79 |
| GW40-16000-0.15 | 40 | 16000 | 0.15 | 3400 | 23.20 | 25.64 |
| GW40-20000-0.15 | 40 | 20000 | 0.15 | 3400 | 30.16 | 33.86 |
Supply scope on the GW sheet| Item | Quantity |
|---|
| Medium-frequency power supply, including capacitor bank | 1 set |
| Melting furnaces | 2 sets |
| Crucible former | 1 |
| Tilting set, gearbox reducer or hydraulic station | 1 |
| Water-cooled cable | 1 set |
| Output copper busbar or cable, and usual spare parts | 1 set |
American standards| US standard | Applies to |
|---|
| NFPA 86 | Standard for Ovens and Furnaces — furnace safety for US plants |
| NFPA 70 (NEC) | National Electrical Code — incoming power and grounding |
| IEEE 519 | Harmonic limits at the plant point of common coupling |
| UL 508A | Industrial control panels on the power supply |
| ASTM A876 | Grain-oriented electrical steel for the magnetic yoke |
| ASTM B75 | Seamless copper tube for the induction coil |
Every figure in these tables is taken from the factory sheets in the product folder and is written in English. 1 metric ton = 1.102 US short tons. Power-supply ratings can still be negotiated to the customer requirement, as the sheet itself states. American standards are the US specifications normally requested with this equipment.
The GWB series is a medium-frequency holding and heat-insulation furnace. It keeps molten metal at temperature for pouring, continuous casting, preheating and duplex operation beside a melting furnace.
GWB holding furnace — factory sheet| Model | Rated capacity (t) | Rated power (kW) | Incoming line voltage (V) | Holding temperature (°C) | Heat-up rate (t/h) | Output frequency (Hz) | Furnace body voltage (V) | Unit power use (kWh/t) | Cooling water (t/h) |
|---|
| GWB3-300/0.7 | 3 | 300 | 380 | 1580 | 7.5 | 250–500 | 1500 | 49 | 9 |
| GWB5-500/0.6 | 5 | 500 | 380 | 1580 | 12.8 | 250–500 | 1500 | 44 | 12 |
| GWB8-800/0.5 | 8 | 800 | 660 | 1580 | 17.6 | 250–500 | 2400 | 43 | 15 |
| GWB10-1000/0.5 | 10 | 1000 | 660 | 1580 | 24.5 | 250–500 | 2400 | 42 | 1 |
| GWB12-1200/0.5 | 12 | 1200 | 660 | 1580 | 30 | 250–500 | 2400 | 40 | 25 |
| GWB15-1500/0.25 | 15 | 1500 | 660 | 1580 | 36 | 150–250 | 2400 | 40 | 28 |
| GWB20-2000/0.25 | 20 | 2000 | 660 | 1580 | 47 | 150–250 | 2400 | 40 | 36 |
| GWB30-3000/0.15 | 30 | 3000 | 1000 | 1580 | 86 | 150–250 | 3200 | 40 | 55 |
| GWB40-4000/0.15 | 40 | 4000 | 1000 | 1580 | 86 | 150–250 | 3200 | 38 | 70 |
| GWB50-5000/0.15 | 50 | 5000 | 1000 | 1580 | 108 | 150–250 | 3200 | 38 | 80 |
American standards| US standard | Applies to |
|---|
| NFPA 86 | Standard for Ovens and Furnaces — furnace safety for US plants |
| NFPA 70 (NEC) | National Electrical Code — incoming power and grounding |
| IEEE 519 | Harmonic limits at the plant point of common coupling |
| UL 508A | Industrial control panels on the power supply |
| ASTM A876 | Grain-oriented electrical steel for the magnetic yoke |
| ASTM B75 | Seamless copper tube for the induction coil |
Every figure in these tables is taken from the factory sheets in the product folder and is written in English. 1 metric ton = 1.102 US short tons. Power-supply ratings can still be negotiated to the customer requirement, as the sheet itself states. American standards are the US specifications normally requested with this equipment.
A one-to-two furnace system uses one medium-frequency power supply, or a double power supply, to run a melting furnace and a holding furnace. One bath melts while the other holds or pours.
Double power supply, one-to-two — factory sheet| No. | Catalog statement |
|---|
| 1 | Continuous batch production from two sets of power control |
| 2 | Large-piece casting with lower unit power use and a higher power factor |
| 3 | Non-stop melting: hold temperature when needed, higher equipment use |
| 4 | Both furnaces can be preheated and sintered at the same time |
| 5 | Small footprint, simpler installation and maintenance |
| 6 | If one supply or one furnace stops, the other can be swapped in |
GWB holding furnace — factory sheet| Model | Rated capacity (t) | Rated power (kW) | Incoming line voltage (V) | Holding temperature (°C) | Heat-up rate (t/h) | Output frequency (Hz) | Furnace body voltage (V) | Unit power use (kWh/t) | Cooling water (t/h) |
|---|
| GWB3-300/0.7 | 3 | 300 | 380 | 1580 | 7.5 | 250–500 | 1500 | 49 | 9 |
| GWB5-500/0.6 | 5 | 500 | 380 | 1580 | 12.8 | 250–500 | 1500 | 44 | 12 |
| GWB8-800/0.5 | 8 | 800 | 660 | 1580 | 17.6 | 250–500 | 2400 | 43 | 15 |
| GWB10-1000/0.5 | 10 | 1000 | 660 | 1580 | 24.5 | 250–500 | 2400 | 42 | 1 |
| GWB12-1200/0.5 | 12 | 1200 | 660 | 1580 | 30 | 250–500 | 2400 | 40 | 25 |
| GWB15-1500/0.25 | 15 | 1500 | 660 | 1580 | 36 | 150–250 | 2400 | 40 | 28 |
| GWB20-2000/0.25 | 20 | 2000 | 660 | 1580 | 47 | 150–250 | 2400 | 40 | 36 |
| GWB30-3000/0.15 | 30 | 3000 | 1000 | 1580 | 86 | 150–250 | 3200 | 40 | 55 |
| GWB40-4000/0.15 | 40 | 4000 | 1000 | 1580 | 86 | 150–250 | 3200 | 38 | 70 |
| GWB50-5000/0.15 | 50 | 5000 | 1000 | 1580 | 108 | 150–250 | 3200 | 38 | 80 |
American standards| US standard | Applies to |
|---|
| NFPA 86 | Standard for Ovens and Furnaces — furnace safety for US plants |
| NFPA 70 (NEC) | National Electrical Code — incoming power and grounding |
| IEEE 519 | Harmonic limits at the plant point of common coupling |
| UL 508A | Industrial control panels on the power supply |
| ASTM A876 | Grain-oriented electrical steel for the magnetic yoke |
| ASTM B75 | Seamless copper tube for the induction coil |
Every figure in these tables is taken from the factory sheets in the product folder and is written in English. 1 metric ton = 1.102 US short tons. Power-supply ratings can still be negotiated to the customer requirement, as the sheet itself states. American standards are the US specifications normally requested with this equipment.
