Pit Furnace

About Pit Furnace

Pit Furnace manufactured by United Enterprises is a vertical, top-loading batch furnace built for heat treatment of long components such as shafts, tubes, gears and large dies.

Brief Description:

The pit-type design is ideal for tall or long parts that cannot be conveniently processed in horizontal furnaces. Components are loaded from the top into a vertical heating chamber, with the entire body of the furnace recessed into the floor or installed in a pit.

We supply pit furnaces with electric or recuperative gas-fired heating, multi-zone temperature control, special air-recirculation fans and high-quality refractory insulation. Atmosphere-control versions are supplied with our own gas generators for processes such as bright annealing, carburizing and nitriding.

Each pit furnace is engineered for the customers component length, weight, batch size and process need.

Characteristics:

• Vertical, top-loading pit design
• Maximum temperature up to 1200C
• Available in electric and recuperative gas-fired versions
• Special air-recirculation fans for uniformity
• Low-density high-quality refractory insulation
• Sealed atmosphere version available
• Suitable for long shafts, tubes, gears and dies
• PLC and SCADA-based control

About United Enterprises:

United Enterprises is a trusted Pit Furnace manufacturer in India with over 25+ years of experience in vertical batch furnaces. We design, manufacture, supply, export and commission tailor-made pit furnaces across Asia and Europe. Our turnkey delivery, in-house design and fabrication and CE / ISO compliance support customers in forging, gear, shaft and heavy engineering industries.

FAQs:

Q: Pit or horizontal furnace which is right?

A: Long vertical parts (shafts, tubes) suit pit furnaces; shorter or wider parts suit horizontal chamber or bogie furnaces.

Q: How tall a part can it handle?

A: From a few meters to several meters depending on design. We engineer the depth based on your needs.

Q: Is atmosphere control possible?

A: Yes. Sealed retorts with gas trains for bright annealing, carburizing or nitriding are supplied as required.

Efficient and Flexible Heat Treatment

Designed to meet the demands of modern industrial processing, this pit furnace is highly versatile. It supports a wide range of applications from annealing to tempering, offering customizable dimensions and operational features. Its multi-layer insulation and advanced control panel ensure precise heating while minimizing energy loss. Options for automation, atmosphere control, and loading mechanisms make it an adaptable solution for metal treatment facilities.


Durability and Safety Assured

Manufactured from high-quality mild or stainless steel and finished with heat-resistant paint, this furnace guarantees longevity even under continuous operation. Safety features, including over-temperature protection and emergency shut-off systems, are integrated as standard. The control panel's digital accuracy and optional automation enhance both safety and process reproducibility, making it a dependable choice for industrial users.