Reduction Furnace

About Reduction Furnace

Reduction Furnace manufactured by United Enterprises is a controlled-atmosphere industrial furnace designed for the reduction of metal oxides into metallic powders, sponge or coarse metal used widely in powder metallurgy, refining and chemical industries.

Short Description:

In a reduction furnace, metal oxides such as iron oxide, copper oxide, tungsten oxide, molybdenum oxide and nickel oxide are exposed to a reducing atmosphere typically hydrogen, cracked ammonia or carbon monoxide at elevated temperatures. The oxygen is removed from the oxide and the metal is recovered in powder or sponge form for downstream pressing, sintering and alloying.

We manufacture and export best-in-class Reduction Furnaces in continuous (pusher tray, mesh belt and rotary) as well as batch (chamber, bell, retort) configurations. Multi-zone PLC temperature control, in-house gas generators and engineered exhaust systems make these furnaces reliable for round-the-clock production.

Each unit is engineered around the customers oxide chemistry, target metallic content, particle morphology and daily throughput. Atmosphere supply is supported by our in-house Hydrogen Generator, Ammonia Cracker and Nitrogen Generator.

Characteristics:

• Designed for reduction of metal oxides into metallic powders / sponge
• Maximum temperature up to 1200C (higher on request)
• Pure hydrogen / cracked ammonia / dissociated NH atmosphere
• Continuous (pusher / belt / rotary) and batch (chamber / bell / retort) designs
• Available in electric and recuperative gas-fired heating
• Multi-zone PLC and SCADA temperature control
• Engineered exhaust with water seal and flare for safe H handling
• In-house Hydrogen Generator and Ammonia Cracker
• Robust safety interlocks for reducing-atmosphere operation

About United Enterprises:

United Enterprises is over 25+ years experienced Reduction Furnace manufacturer in India. We design, manufacture, supply, export and commission tailor-made Reduction Furnaces across Asia and Europe. Established in 1998, we are an established manufacturer and exporter in India, recognised among top furnace suppliers in India, supplying powder metallurgy, refractory metal, tungsten, molybdenum, copper and specialty chemical industries all under CE and ISO standards.

FAQs:

Q: Which atmosphere is best for oxide reduction?

A: Pure hydrogen gives the fastest and cleanest reduction. Cracked ammonia (75% H + 25% N) is a more economical alternative for most general applications.

Q: Continuous or batch reduction?

A: Continuous pusher or belt designs suit high-volume production of standardised powders. Batch retort designs suit specialty grades, R&D and varying chemistries.

Q: Do you supply the complete reducing-atmosphere setup?

A: Yes. We build the furnace along with our in-house Hydrogen Generator or Ammonia Cracker, gas train, flame curtains, water seals and flare supplied as a turnkey package.

Unmatched Temperature Precision

The integrated digital PID controller paired with reliable Kanthal or Nichrome heating elements ensures accurate and consistent temperature control up to 1500C. This makes the furnace ideal for precise industrial processes, such as high-performance metal reduction and specialized laboratory work.


Sturdy Construction for Longevity

Built from high-grade mild steel or stainless steel with a corrosion-resistant, powder coated or painted exterior, this furnace is engineered for durability. Its robust design minimizes maintenance while maximizing operational lifespan, supported by high-density ceramic fiber insulation and refractory chamber materials.


Comprehensive Safety & User Flexibility

Safety is prioritized with advanced features like over-temperature protection and a door interlock mechanism. Users benefit from intuitive digital displays, natural or forced air cooling systems, front or top loading options, and flexible operational modes (manual/semi-automatic) to match diverse industrial requirements.