You can experience the benefits of the bright annealing of steel with annealing ovens from Gasbarre. We design and manufacture our vacuum and batch furnaces with quality and efficiency in mind, providing customers with industry-leading equipment they can trust.

What Is Annealing?

Annealing requires heating and holding at a suitable temperature and then cooling at a suitable rate for such purposes as reducing hardness, improving machinability, facilitating cold working, producing a desired microstructure (for subsequent operations) or obtaining desired mechanical, physical or other properties.* 

What Are Annealing Furnaces?

Annealing furnaces support the annealing process by heating materials at high temperatures to alter their strength and hardness properties. They achieve these changes by heating products above their recrystallization temperatures and cooling them after the samples have endured the desired temperature for the proper length of time.

Annealing ovens heat materials through three primary stages:

  1. Recovery: Furnace raises the temperature to relieve internal stress.
  2. Recrystallization: Oven heats the substance above its recrystallization temperature and below its melting point, resulting in grain formation.
  3. Grain growth: New grains develop as the material cools, making it more pliable.

What Is the Bright Annealing of Steel?

Bright annealing is a type of steel annealing process that occurs in a controlled atmosphere or vacuum containing inert gases to minimize oxidation. As a result, this method helps to generate a brighter and smoother surface with a thin oxide layer and improved corrosion resistance. Vacuum furnaces tend to achieve the most effective atmospheric quality for bright annealing processes.

Annealing Ovens From Gasbarre

Gasbarre specializes in the design and manufacture of custom-engineered annealing furnaces specific to the thermal processing industry. We carry state-of-the-art vacuum and batch annealing furnaces designed to produce high-quality products that are as durable as they are visually appealing. When you invest in manufacturing equipment from us, you’ll experience reliability and efficiency like never before.

Gasbarre furnaces are:

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Gasbarre’s complete line of annealing furnaces is listed below.

Car Bottom

Gasbarre IFS car bottom furnaces are ideal for processing large workloads.

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Continuous Mesh Belt

Gasbarre is a leading manufacturer of continuous mesh belt furnaces and will custom-design to your specifications.

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Modular Vacuum

Expandability and versatility make this furnace an attractive selection for many thermal processing needs with growth in mind.

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High-Efficiency Box

Available in numerous sizes and configurations. Can be used for numerous processes in air or atmosphere configurations.

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Continuous Mesh Belt – 
Humpback 

This design is beneficial to processes that require the use of hydrogen atmosphere, an extremely light gas.   

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Modular Heat Treat Systems

The C.I. Hayes CVCQ-LAM vacuum sintering furnace uniquely combines atmosphere delubrication and vacuum sintering. 

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Pit

Gasbarre pit furnaces are available in numerous sizes and configurations, with features and options customized to your unique needs.

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Continuous Mesh Belt – Solitaire

This C.I. Hayes furnace is known for its compact design and for its popularity for brazing and bright annealing of jewelry pieces.

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Continuous Vacuum – Multizone

A multizone continuous vacuum, this C.I. Hayes furnace consists of 3 modular chambers:  load/evacuation, heating, and quench.

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Integral Quench Furnaces

The Gasbarre integral quench furnace is designed for batch processing for many different heat treating applications making it one of the most flexible pieces of equipment in the industry.

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Gas/Pressure Quench – Dual Chamber

This C.I. Hayes vacuum furnace with isolated gas quench is quite versatile, designed for a wide range of heat treat applications.

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Oil Quench – Dual Chamber

This C.I. Hayes vacuum furnace with isolated oil quench is quite versatile, designed for a wide range of heat treat applications.

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Vacuum Sintering – Continuous

The C.I. Hayes CVCQ-LAM Vacuum Sintering Furnace uniquely combines atmosphere delubrication and vacuum sintering. 

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Tip Up

Gasbarre IFS tip up furnaces are ideal for processing large, heavy workloads.

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Tube

The CI Hayes tube furnace is designed to process wire or strip material in continuous fashion.

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Vacuum Batch

Designed for many thermal processes, the electrically heated batch vacuum furnace is available in a multitude of configurations.

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Single-Chamber Vacuum

This C.I. Hayes furnace is a horizontally loaded, electrically heated, versatile batch furnace that may be programmed to run simple or complex thermal profile recipes. 

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*Source: Daniel H. Herring, “The Heat Treat Doctor.” The HERRING GROUP, Inc.

Our Custom Annealing Oven Fabrication Capabilities

If you have specialized annealing projects that require more than our standard furnace solutions, we can build a custom machine geared to your company’s needs using our custom fabrication services. When you contact us for tailored equipment, one of our experts will work with you directly, discussing your expectations and requirements while determining the best way to implement your custom product into your everyday processes.

Our custom engineering capabilities enable us to perform all of the following processes:

Benefits of Using Annealing Furnaces

Purchasing annealing ovens for your industrial facility means experiencing all the benefits of these specialized ovens, including:

Why Choose Gasbarre for Vacuum Annealing Furnaces?

Gasbarre established its reputation as a highly dependable original equipment manufacturer (OEM) in 1973, and we still hold true to our same values today. Our family-owned Pennsylvania company is known for delivering an extensive variety of products ranging from presses to furnaces to automation, making us your one-stop shop for full process integration.

We rise above the competition by servicing products for the life of the equipment. That means we don’t try to drive sales by phasing out old equipment or discontinuing services so that customers will invest in new ones. You can trust that we conduct business in our customers’ best interest.

Let Gasbarre become your trusted partner. Contact us for a quote today.

You can perfect your bright annealing processes with vacuum annealing furnaces from Gasbarre. With over 45 years of industry experience, we’re the full-service international OEMs you can count on.

For more information on our annealing ovens, call us at 814-371-3015 or fill out an online form today!

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