1. Market Background

In Tanzania, many small and medium-sized aluminum foundries still rely on simple pit furnaces or homemade crucible furnaces. These systems have long melting times, large temperature fluctuations and high oxidation loss of molten aluminum, leading to porosity and shrinkage defects. As demand from construction and hardware markets grows, more foundries are looking for a stable resistance crucible melting furnace to improve melt quality and productivity.

2. Customer & Application Scenario

The customer is a small foundry supplying aluminum castings for building and hardware applications, mainly using recycled aluminum as feedstock. Their old, simple furnace consumed a lot of energy and offered poor temperature control. Unstable molten metal temperature led to many surface defects and a high scrap rate. The customer wanted a 350 kg resistance crucible melting furnace to improve melt quality while keeping energy consumption under control.

3. Our Solution (Product & Specifications)

Wuxi Wondery Industry Equipment supplied a 350 kg resistance crucible melting furnace with:

• Crucible capacity: 350 kg

• Heating: electric resistance (resistance crucible melting furnace)

• Features: accurate temperature control, uniform furnace temperature and optimized insulation

Operators can set target temperature and holding time on the control panel according to alloy grade. The melting cycle is executed automatically by the electrical control system, reducing reliance on “visual fire control” and stabilizing molten aluminum quality.

4. Customer Feedback

After commissioning, the customer reported shorter and more predictable melting times. A 350 kg melt volume per heat is sufficient to support several pours within a shift. Temperature fluctuations are reduced, porosity and surface defects in castings decreased, and scrap and rework rates went down.
Thanks to the higher thermal efficiency and better insulation of the resistance crucible melting furnace, electricity cost pressure has eased. Operators quickly became familiar with the equipment, and daily maintenance is mainly focused on crucible and lining inspection, making management easier.

5. Conclusion

For markets like Tanzania, where small and medium aluminum foundries are common, a properly configured 350 kg resistance crucible melting furnace can significantly improve melt quality and production stability with limited investment. The solution from Wuxi Wondery Industry Equipment is ideal for users upgrading from very simple furnaces while balancing energy consumption and product quality.