Indirect Rotary Dryers

Built for performance and reliability, Vulcan® Indirect Rotary Dryers produce quality and replicable drying results. Our Indirect Rotary Dryers are one of the most versatile industrial dryers on the market. Our modular approach allows you to pick the dryer size, flight arrangement, burner and air pollution control equipment to best suit your unique project. Vulcan® Indirect Rotary Dryers are built to rigorous safety and performance standards because they are 100% designed, manufactured and tested in the USA.

Vulcan® Indirect Rotary Dryers rely on the heat transferred through the drum’s shell to dry the material via conduction and radiation to reduce the material’s moisture content. Indirect drying allows you to tightly control the processing environment, an ideal characteristic when working with materials that can be combustible or where higher temperatures are required to remove bound water. Our indirect dryer units can have tumbling flights (optional) and an air stream heat exchanger (optional) mounted in the combustion chamber stacks to utilize waste heat to heat sweep air and increase drying efficiency.

The Versatility of Vulcan® Indirect Rotary Dryers

Select the perfect Indirect Rotary Dryers for your project.

Step 1 - Choose Your Dimensions

Vulcan®'s Indirect Rotary Dryers come in standard sizes ranging from 3’ diameter by 15’ long to 8’diameter by 60’ long. Whether you have a small 1TPH project or a large 200TPH project, we can construct your dryer to fit your project.

Standard Dimensions:

     Diameter: 36"-96"

     Length: 15' - 40'

Long Dimensions:

     Diameter: 36"-96"

     Length: 22' - 60'

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materials of construction

Step 2- Choose Your Material Of Construction

Vulcan®'s Indirect Rotary Dryers are constructed from a variety of materials depending on your application. Each standard dryer has four options for you to choose from, but we can construct your dryer from any material that you

  • 1/4" 304 Stainless Steel for Light Industrial, Low Temperature Applications
  • 3/8" 304 Stainless Steel for Heavy Industrial, Low Temperature Applications
  • 3/8" Inconcel for High Temperature Applications
  • 1/4" 316 Food Grade Stainless Steel

Step 3- Choose Your Options

Your indirect rotary dryer can be customized with a number of flight options from standard to aggressive (or a combination). Knock out boxes can be added for your controls, insulation and wraps to better control temperature and an external finish paint to keep your dryer looking new for years.

  • Flights
    • Standard
    • Aggressive
    • Combination
  • Over sized Knock Out Box
  • VFD Drum Drive
  • Insulated shell with aluminium skin
  • Internal Hard Refractory (Not for drying applications)
  • Chain Curtain
  • External Finish Paint

Indirect Rotary Dryers Models


Vulcan® IDR3615

Vulcan® IDR3615 (4)

 Diameter36"
Length15'
Drive System5 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity2.5 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR3622 (Long)

Vulcan® IDR3622 (Long) (4)

 Diameter36"
Length22' 6"
Drive System10 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity4 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" 304 SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR4820

Vulcan® IDR4820 (4)

 Diameter48"
Length20'
Drive System10 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity5 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR4830 (Long)

Vulcan® IDR4830 (Long) (4)

 Diameter48"
Length30'
Drive System15 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity7.5 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" 304 SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR6025

Vulcan® IDR6025 (4)

 Diameter60"
Length25'
Drive System20 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity12 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR6037 (Long)

Vulcan® IDR6037 (Long) (4)

 Diameter60"
Length37' 6"
Drive System25 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity18 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" 304 SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR7230

Vulcan® IDR7230 (4)

 Diameter72"
Length30'
Drive System40 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity18 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR7245 (Long)

Vulcan® IDR7245 (Long) (4)

 Diameter72"
Length45'
Drive System25 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity18 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" 304 SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR8435

Vulcan® IDR8435 (4)

 Diameter84"
Length35'
Drive System60 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity24 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR8452 (Long)

Vulcan® IDR8452 (Long) (4)

 Diameter84"
Length52'
Drive System100 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity36 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" 304 SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR9640

Vulcan® IDR9640 (4)

 Diameter96"
Length40'
Drive System100 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity30 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger
Vulcan® IDR9660 (Long)

Vulcan® IDR9660 (Long) (4)

 Diameter96"
Length60'
Drive System150 HP drive with 25:1 gearbox, saddle drive chain and sprocket
Maximum Firing Capacity45 MMBtu/hr
Available Construction Materials:1/4" 304 SS, 3/8" 304 SS, 3/8" Inconel and 1/4" 316 SS

includes:

  • refractory lined combustion chamber
  • burner assemblies
  • feed and discharge bridging
  • drive motor
  • feed auger

Learn More


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