The Different Types of Industrial Furnaces
To keep up with demands and different applications, different types of furnaces had to be developed to suit for a wide range of applications. There are four main types of furnaces: natural gas, oil, electric and propane. Electric furnaces can heat the air by exposing heated elements, while other types of furnaces require a heat exchanger or chamber that warms the surrounding air. One of the functions of industrial furnaces is to heat treat metals for annealing, tempering, carburizing and pre-treat materials for forging.
Furnaces and their Applications
Ashing Furnaces
Used to determine the amount of ash that forms after a sample is burned. The is used to determine any contaminants in the sample, it is used as a preconcentration method to detect any trace substance before chemical analysis. Some examples of materials that are used in ashing furnaces include petroleum products, coals, and lubricating oils.
Calcination Furnaces
Heat treatment processes in which samples such as minerals or ceramic powders are heated below the melting point to induce phase transitions, thermal decomposition or to change the surface.
Tempering Furnaces
Tempering is the process of heating steel to a specific temperature and then cooling it in still air. The objective of tempering furnaces is to remove hardness; they are often used after iron-based alloys have been subjected to hardening or quenching to remove the metal stress, brittleness, and excess hardness these processes can cause.
Annealing Furnaces
Annealing furnaces heat up material and maintain its temperature before cooling at a suitable rate. Different temperatures and rates are used depending on the type of material and its requirements. The process of annealing is used to soften a sample for improved cold working, its machinability, and to enhance its electrical and mechanical properties.
Sintering Furnaces
Sintering processes form and compact a solid mass material using pressure or heat without melting the sample to the point of liquefaction. This process is used to reduce the porosity of a material and to enhance a specific property including strength, translucency, thermal conductivity, or electrical conductivity.
Tensile Testing Furnaces
These types of furnaces work by subjecting the sample to controlled tension until complete failure- this is a popular test method for quality control. They are used to measure the ultimate tensile strength, yield strength, strain-hardening, and a range of other properties of materials.
Rotary Tube Furnaces
These furnaces are circular and rotate during heat treatment. Rotary tube furnaces are used for continuous materials processing as they can apply heat in multiple thermal control zones.
At Rileys, we have a broad range of different types of industrial furnaces and ovens. Riley Surface World is the world's leading live and online marketplace for new and used, industrial surface treatment and metal finishing plant and machinery.
Hendrick Industrial Equipment Ltd Through Feed Double Bogie Shuttle Heat Treatment Furnace to AMS 2750 rev E
Hendrick Industrial Equipment Ltd Pre-oxidization and Annealing Furnace with 2 rail mounted carts/ bogeys to allow components to be wheeled into and out of chamber. 0-925°C temperature range, switchgear, accessories and spares, rebuilt in 2003.
- Stock No
- OA2255
- Category
- Industrial Furnaces
- Model
- Hendrick Industrial Equipment Ltd Bogie Hearth
- Year of Manufacture
- 2003 (Ref)
- Internal Size (WxDxH mm) [?]
- 1050 x 900 x 500
- Max Temp
- 1050°C rating of 40kW
- Other Info
- 12 Point Survey AMS 2750 rev E
- Condition
- From a working environment, Good Condition
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Made In Germany Carburising Electric Pit Furnace
A versatile 130kW Carburising furnace utilising Homocarb© fluid to create the atmosphere. Manual or automatic operation of temperature and atmosphere set points with a maximum working temperature of 1000°C
- Stock No
- OA2269
- Category
- Industrial Furnaces
- Model
- Made In Germany Carbo Drop
- Year of Manufacture
- Ref 2018
- Internal Size (WxDxH mm) [?]
- Charge size 900 Ø x 900 high
- Max Temp
- 1000°C with cooling facility
- Other Info
- AMS2750 rev E from 500°C to 950°C
- Condition
- Seen working by RSW, Excellent Condition
- Sold As Seen Price [?]
- £ Login or Register for price.
Watkins Johnson Mesh Belt Furnace
This Watkins Johnson 6 zone furnace consists of the following major components and operational features. Eurotherm Mini 8 programmable controller linked to an external PC. 6 zones with 2 side, 1 top and 1 bottom element in each zone. Variable belt speed control.
- Stock No
- OB2281
- Category
- Industrial Furnaces
- Model
- Watkins Johnson 6 zone Furnace Model 14TF
- Internal Size (WxDxH mm) [?]
- 355 wide x 80 high above belt
- Max Temp
- 900°C
- Other Info
- Variable Speed Conveyor Belt.
- Condition
- From a working environment, Excellent Condition
- Sold As Seen Price [?]
- £ Login or Register for price.
Metritherm 6 Zone Atmosphere Low Temperature Mesh Belt Furnace
This is a 6 zone atmosphere low temperature conveyor furnace . The furnace was used for glass to metal sealing at 620°C with nitrogen.
- Stock No
- OB2283J
- Category
- Industrial Furnaces
- Model
- Metritherm 6 Zone
- Year of Manufacture
- Ref 2019
- Internal Size (WxDxH mm) [?]
- 150mm Wide belt x 70mm Tall aperture
- Max Temp
- 680°C
- Other Info
- Belt width 150mm
- Condition
- From a working environment, Good Condition
S G Nitriding Furnaces Bell Style, Controlled Atmosphere, Nitriding Furnace
The SG nitriding, bell style furnace has been specified and built primarily as a gas nitriding furnace operating under a monitored gas environment. But with its 1175°C temperature range, it is also suitable for a wide range of other heat treatments including; carburising, carbonitriding, annealing, brazing and nitrocarburizing.
- Stock No
- OC2416
- Category
- Industrial Furnaces
- Model
- S G Nitriding Furnaces Gas Nitriding Bell Furnace
- Year of Manufacture
- Ref 2016
- Internal Size (WxDxH mm) [?]
- Ø550 x 750
- Max Temp
- 1175°C
- Other Info
- New CSM 40mm Seal fitted in 2016
- Condition
- From a working environment, Good Condition
Furntech Electric Heavy Duty Front Loading Industrial Furnace
The electric single zone heat treatment furnace is designed to use an arrangement of heater elements located on either side of the heating chamber, providing the best possible control of heat transfer, temperature uniformity, and fuel efficiency.
- Stock No
- OD2513
- Category
- Industrial Furnaces
- Model
- Furntech Front loading vertical door
- Internal Size (WxDxH mm) [?]
- 1060 x 1470 x 660 highest point
- Max Temp
- 1100°C
- Other Info
- Eurotherm 6100A Data Recorder
- Condition
- Seen working by RSW, Good Condition
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Wessex Furnaces 670°C AMS 2750 Heavy Duty Air Circulated Box Oven
This steel lined, 670°C, roller hearth, industrial, air circulated oven has a large chamber size of 950mm x 1000mm x 950mm. Featuring a vertical lifting door, Eurotherm 3208 PID controller and Eurotherm 3216 over temperature controller.
- Stock No
- OD2531
- Category
- Industrial Furnaces
- Model
- Wessex Furnaces AMS 2750 Class 5 Vertical Door
- Year of Manufacture
- 1999
- Internal Size (WxDxH mm) [?]
- 950 x 1000 x 950
- Max Temp
- 670°C
- Other Info
- AMS 2750 Class 5 Industrial Box Oven
- Condition
- From a working environment, Excellent Condition
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Linn High Therm GmbH Microwave High Temperature Chamber Furnace
This high power microwave furnace was designed especially for powder metallurgical processes such as ashing, calcination, melting and sintering. The chamber is gas and vacuum tight with special safety features to protect the operators from emerging microwave radiation. Includes several optional extras.
- Stock No
- OD2552J
- Category
- Industrial Furnaces
- Model
- Linn High Therm GmbH MKH-7,2
- Year of Manufacture
- 2016
- Internal Size (WxDxH mm) [?]
- Useful Volume 27L, Chamber 156L
- Max Temp
- 1800°C // 1700°C Continuous
- Other Info
- 7.2kW of Microwave Power
- Condition
- From a working environment, Excellent Condition, Current Model
- Sold As Seen Price [?]
- £ Login or Register for price.
Pollution Control Products Organic Coating Burn off Furnace
Controlled Pyrolysis burn off furnace.
- Stock No
- OZ2092
- Category
- Industrial Furnaces
- Model
- Pollution Control Products Euro99 SCTR 9 Modified depth
- Year of Manufacture
- 1999
- Internal Size (WxDxH mm) [?]
- 580 x 4000 x 1150
- Max Temp
- Primary 450°C, Secondary 800°C
- Other Info
- Unique 4 Meters Working Depth
- Sold As Seen Price [?]
- £ Login or Register for price.
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