Sealed Quench Hardening Furnace

About Sealed Quench Hardening Furnace

Sealed Quench Hardening Furnace manufactured by United Enterprises is a sealed-chamber hardening furnace with built-in quench tank, designed for bright hardening, carburizing and carbonitriding of high-volume production parts.

Brief Description:

This furnace combines the atmosphere control of sealed heating with the rapid quench of an integrated tank ideal for automotive gears, bearings, fasteners, hand tools and similar production parts. The atmosphere is supplied via our in-house Endo Gas Generator or Ammonia Cracker, with dew point and oxygen probe control for tight carbon-potential management.

Both electric and recuperative gas-fired heating versions are available, with PLC and SCADA-based recipe management and cycle data logging.

Each furnace is engineered around the customers part mix, atmosphere need and target metallurgy.

Characteristics:

• Sealed-chamber hardening with integrated quench
• Maximum temperature up to 1200C
• Endo gas / cracked ammonia atmosphere
• Available in electric and recuperative gas-fired versions
• Dew point and oxygen probe carbon-potential control
• In-house gas generators
• Multi-zone PLC and SCADA temperature control
• Designed for high-volume production lines

About United Enterprises:

United Enterprises is a trusted Sealed Quench Hardening Furnace manufacturer in India with over 25+ years of experience in modern heat treatment lines. We design, manufacture, supply, export and commission tailor-made sealed quench hardening furnaces across Asia and Europe. Our turnkey approach, in-house atmosphere generator manufacturing and CE / ISO compliance serve automotive, gear, bearing, fastener and engineering industries.

FAQs:

Q: Carbon potential how is it controlled?

A: Through endo gas composition, dew point measurement and oxygen probe feedback, all managed by SCADA.

Q: Pre-wash and post-wash are these supplied?

A: Yes. Complete lines with pre-wash, SQF, post-wash and tempering are built in-house.

Q: How is consistency ensured batch to batch?

A: Through recipe-based control, SCADA logging and tightly tuned atmosphere control loops.

Advanced Automation for Consistent Results

Utilizing a PLC-based control system, this furnace ensures repeatability and accuracy across all heat-treatment cycles. Temperature and atmosphere settings are precisely maintained, drastically reducing manual intervention and enhancing process reliability. Automated safety features such as over-temperature protection and interlocks further ensure secure operation throughout each cycle.


Versatile Heat Treatment Capabilities

Designed for hardening, tempering, carburizing, and annealing, the furnace operates with multiple protective atmospheres, including endothermic, nitrogen, and methanol-based gases. Capable of reaching temperatures up to 1250C, it can handle a wide range of metal treatment requirements for various industries, adapting to specific batch sizes and process demands.


Efficient and Safe Operation

A sealed chamber maintains controlled heating environments, while high-grade resistance heating elements and advanced insulation materials provide robust energy efficiency. The integrated oil quench tank enables rapid and uniform cooling, supporting cycle times between 1 and 8 hours. Each furnace is designed with operator safety as a priority, featuring secure interlocks and emergency provisions.