Advantage: Heated by 1800C Molybdenum Disilicide (MoSi2) heating elements, Alumina tube size (Outer Diameter): 60mm, 80mm, 100mm, 51 steps programmable temperature control, Furnace can be vacuumed or filled with protection gas GSL1700 Tube furnace is advanced type of GSL-1600. It's heater by 1800C MoSi2 heating elements. This furnace is widely used in Material and Chemical laboratory used for heating all kinds new samples at vacuum or gas protection environment. Temperature is controlled by high accuracy controller which can reach to +/-1C, and it can set 51 steps temperature program. The highest working temperature of this furnace is 1750C. Furnace Tube High Purity Alumina Tube Sizes of Furnace Tube ID: 50mm / OD: 60 mmá x 1000 mm long Heating Elements á6 PCS 1800C á MOSI2 MAX. Temperature 1700C Working Temperature 1600C Temperature Control PID Auto Control, 51Steps Program The Fastest Heating Rate 10C / min Heating Zone Length á457 mm ( 18") Constant Temperature Zone 150 mmá (6") Temperature Accuracyá +/-1C Voltage single, 220V AC, 50/60 Hz Power Max. 5KW Size 550 L x450 W x670 Há mm Net Weight 150 kg ( 330 lbs ) Package Size á47" x 45"x 45"(1200L x 1150W x 1150Hmm) . In wooden box.