17L High Temperature Lifting Crucible Furnace

Product Overview

GWDL-R Series High Temperature Lifting Crucible Furnace is designed to solve the risk and thermal shock problems of traditional molten glass operations. The furnace features an integrated lifting mechanism that allows the crucible to be raised and lowered safely, minimizing direct handling of molten glass. Ideal for laboratories, research institutes, and industrial applications in ceramics, metallurgy, electronics, glass, chemical, refractory, and new materials.

Key Features:

• Lifting System: Safe vertical lifting of 99% quartz ceramic crucibles from furnace chamber to avoid thermal shock and operator hazards.
• Instant Melt Discharge: After melting at 1650℃, the crucible can be lowered to safely pour molten glass into molds or quenching baths.
• Uniform Heating: Four-side and bottom SiMo heating system ensures even temperature distribution inside the crucible.
• High Precision Control: ±1℃ temperature control, 50-step programmable curves, PID/APID/MPT modes for precise melting, holding, and cooling.
• Durable Crucible: 99% high-purity quartz ceramic resists glass corrosion and rapid temperature changes.
• Energy Efficiency: Furnace lining made of high-purity alumina lightweight material, with excellent heat retention and rapid heating/cooling tolerance.
• Safe Operation: Wind-cooled double-layer body keeps outer shell temperature ≤45℃. Dual-loop protection and integrated circuit control prevent over-temperature, over-current, over-voltage, and thermal shocks.

Technical Specifications

 Operation Principle

1. Loading & Melting: Crucible is placed on the lift tray at furnace bottom. Lift mechanism raises it into high-temperature uniform zone.
2. Holding & Homogenization: Material melts at 1650℃, fully clarified and homogenized.
3. Discharge: Crucible lowered via lift system, allowing molten glass to be safely poured into molds or quenching baths.

Advantages:

• Significantly reduces operator burn risk.
• Protects furnace and heating elements from thermal shock.
• Simplifies operation and reduces labor intensity.
• Rapid lift reduces unwanted high-temp dwell, ensuring uniform melt quality.