Drum Dryer & Roller Dryer Manufacturers in India for Starch, Dairy & Food Ingredients
A Drum Dryer, also commonly called a Roller Dryer in food and starch processing, is a continuous indirect-contact drying system designed primarily for liquid, slurry, paste-like or pumpable products.
Unlike a Rotary Drum Dryer, which normally dries solids through contact with hot gases inside a rotating cylinder, a contact Drum/Roller Dryer transfers heat through the surface of a heated rotating drum.
This distinction is critical.
Contact Drum / Roller Dryer
Thin product film → heated rotating drum → rapid evaporation → scraping → flakes/powder
Rotary Drum Dryer
Wet solid → hot gas → rotating drum → convective drying
These are different dryer technologies for different feed materials and process objectives.
GTI Dryers designs and manufactures Drum Dryers for food, starch, dairy, chemical and other industrial applications where thin-film conductive drying can provide the required product form, drying rate and quality.
GTI’s current Drum Dryer portfolio includes single-drum, double-drum and twin-drum configurations for liquids, slurries, pastes, suspensions and viscous materials.
What Is a Drum Dryer?
A Drum Dryer is a continuous drying machine in which a liquid, slurry, suspension or paste is applied as a thin layer onto the outside surface of a heated rotating drum.
The drum is heated internally, commonly using steam.
As the drum rotates:
- Feed is applied to the drum.
- A thin film forms on the heated surface.
- Heat passes through the drum wall.
- Moisture evaporates rapidly.
- The dried film develops on the surface.
- A doctor blade/scraper removes the dried material.
- The product is collected as flakes, sheets or material for further milling.
This is fundamentally a continuous indirect conductive drying process.
Commercial contact-drum systems use this principle for food and chemical products, including starch, milk, potatoes, fruit, yeast, gelatin and other pumpable or paste-like feeds.
Drum Dryer vs Roller Dryer: Are They the Same?
In many food, starch and ingredient-processing applications, Drum Dryer and Roller Dryer are used interchangeably to describe contact drying on a rotating heated drum.
However, terminology can vary between industries and suppliers.
A buyer should therefore confirm the actual operating principle.
Ask:
Is the product dried by a thin film on a heated rotating drum?
If yes, the equipment is a contact drum/roller dryer.
This avoids confusion with:
- Rotary Drum Dryer
- Rotary Dryer
- Drum Flash Dryer
- Drum Flaker
- Rotary Kiln
- Vacuum Drum Filter
These machines may contain the word “drum” but perform completely different processes.
Why Is Drum Drying Important for Starch and Food Ingredients?
Drum drying is particularly interesting for products where drying is also part of the desired functional transformation.
The thermal and film-drying conditions can influence:
- Solubility
- Reconstitution
- Texture
- Flake structure
- Gelatinization
- Taste
- Colour
- Bulk density
- Particle size after milling
- Functional properties
ANDRITZ identifies contact drum drying as an important technology in starch processing, including applications where the process can improve solubility and freezing/dew stability of modified starch.
Therefore, a Drum Dryer should not be selected simply as a machine for “removing water.”
The final product characteristics should be part of the dryer specification.
How Does an Industrial Drum Dryer Work?
Step 1: Feed Preparation
The feed is prepared as a pumpable liquid, slurry, suspension or paste.
Feed consistency can have a major effect on:
- Film formation
- Drying rate
- Product adhesion
- Film thickness
- Scraping behaviour
Step 2: Feed Application
The product is introduced onto the rotating drum using a suitable feed arrangement.
Depending on the configuration, this can include:
- Dip pan
- Applicator rolls
- Top-feed rollers
- Linear feed
- Nip feed
GTI’s current Drum Dryer design includes different feed arrangements for single- and double-drum systems.
Step 3: Thin Film Formation
The feed forms a controlled film over the drum surface.
Film thickness is one of the most important process variables.
A thicker film generally means:
- More material per unit surface area
- Longer drying requirement
- Different product texture
A thinner film can provide:
- Faster moisture removal
- Shorter thermal exposure
- Different flake characteristics
Therefore, feed distribution and film thickness must be controlled carefully.
Step 4: Indirect Heating
Steam or another suitable heating medium heats the drum internally.
Heat passes through the drum shell into the wet product film.
The product itself does not need to be directly contacted by a large volume of hot drying air.
This is one reason contact drum dryers can have a relatively compact process arrangement.
Step 5: Rapid Evaporation
As the drum rotates, moisture evaporates from the thin product layer.
Because the product layer is thin, drying can occur over a relatively short drum-contact period.
Commercial drum-drying systems can have drying times measured in seconds, although actual residence/drying time depends strongly on product, film thickness, heating conditions and drum configuration. ANDRITZ currently specifies a broad 3–100 second drying-time range for its Gouda drum dryer.
Step 6: Film Removal
Before the drum completes its rotation, a precision doctor blade removes the dried film.
The product can leave the dryer as:
- Sheets
- Flakes
- Broken flakes
- Powder after downstream milling
Step 7: Product Collection
The scraped product can be transferred to:
- Screw conveyor
- Flaker
- Mill
- Sifter
- Pulverizer
- Cooling system
- Packaging line
The required downstream system depends on the desired final particle size and product form.
Drum Dryer Process Flow
Liquid / Slurry / Paste Feed
↓
Feed Preparation
↓
Controlled Feed Application
↓
Thin Film Formation
↓
Steam-Heated Rotating Drum
↓
Rapid Indirect Evaporation
↓
Doctor Blade Scraping
↓
Dry Film / Flakes
↓
Milling / Sifting if Required
↓
Cooling
↓
Packaging / Further Processing
Single Drum Dryer vs Double Drum Dryer
This is one of the most important decisions for buyers.
Single Drum Dryer
A Single Drum Dryer uses one heated rotating drum.
Feed can be introduced through:
- Dip pan
- Applicator rolls
- Top feed system
- Other customized feed arrangements
GTI identifies single-drum systems as particularly suitable for viscous pastes, gelatinized products, suspensions and heavy slurries.
Potential advantages
- Good control of film formation
- Suitable for viscous products
- Flexible feed arrangements
- Useful for paste-like products
- Controlled film thickness
Double Drum Dryer
A Double Drum Dryer uses two rotating drums positioned close together.
The feed is introduced into the region between the drums, and the rotating surfaces pick up the product as a film.
Potential advantages
- Continuous operation
- Large effective drying surface
- Suitable for appropriate low-to-medium viscosity feeds
- Controlled film formation
- High production potential
The appropriate configuration depends on viscosity, solids content, adhesion, feed rheology and required product characteristics.
Single Drum vs Double Drum Dryer: Selection Guide
| Parameter | Single Drum | Double Drum |
| Number of heated drums | One | Two |
| Typical feed behaviour | Viscous/pasty materials | More fluid/slurry feeds |
| Feed system | Dip pan / applicator rolls / top feed | Nip / sump / applicator systems |
| Film control | Strong | Strong |
| Sticky products | Often suitable | Can be suitable |
| Process flexibility | High | High |
| Product viscosity | Broad, including viscous products | Depends on feed configuration |
| Main selection factor | Rheology and film application | Rheology, feedability and required capacity |
This is a selection guide, not a universal ranking. Product trials are often valuable before final equipment specification.
Drum Dryer vs Rotary Drum Dryer — A Critical Difference
This distinction deserves its own section because it prevents one of the most common search and purchasing misunderstandings.
Contact Drum / Roller Dryer
The product is applied to the outside of a heated rotating drum.
Heat transfer: Conductive
Feed: Liquid/slurry/paste
Product movement: Thin film on drum
Output: Film/flakes/powder
Typical applications: Starch, potato products, dairy ingredients, purees, food slurries, chemicals
The product is generally fed into a rotating cylinder and dried using hot gas flowing through or around the material.
Heat transfer: Primarily convective
Feed: Usually wet solids, particles, biomass, minerals or other bulk solids
Product movement: Lifting/tumbling/conveying
Output: Dried solids
Typical applications: Biomass, minerals, feed, grains, salts, industrial solids
Simple rule:
Liquid/slurry/paste + heated drum surface = Contact Drum Dryer
Wet bulk solid + hot gas + rotating cylinder = Rotary Drum Dryer
GTI maintains separate Drum Dryer and Rotary Drum Dryer technologies in its equipment portfolio, reinforcing this distinction.
Drum Dryer vs Spray Dryer
Food and ingredient manufacturers often compare these two technologies.
| Parameter | Drum Dryer | Spray Dryer |
| Feed | Slurry/paste/liquid | Pumpable liquid/slurry |
| Main heat transfer | Indirect conductive | Convective hot gas |
| Product form | Flakes/sheets/powder | Fine powder |
| Drying mechanism | Thin film | Atomized droplets |
| Air requirement | Relatively low | High |
| Thermal exposure | Short film residence | Very short droplet residence |
| Sticky/high-viscosity feeds | Often advantageous | Can be challenging |
| Product texture | Distinct flakes/particles | Fine powder |
| Footprint | Can be compact | Typically larger air-handling system |
| Solids concentration | Can handle concentrated feeds | Feed concentration affects atomization |
| Best selection basis | Desired texture + rheology + drying behaviour | Powder specification + atomization + drying behaviour |
A Drum Dryer should not automatically replace a Spray Dryer.
The decision should depend on:
- Desired powder/flake structure
- Feed concentration
- Viscosity
- Product solubility
- Thermal sensitivity
- Throughput
- Energy availability
- Air-handling requirements
Drum Dryer vs Freeze Dryer
These technologies serve very different product objectives.
Drum Dryer
Best considered when the product can tolerate controlled thermal processing and a continuous film-drying process is desirable.
Freeze Dryer
Used when preservation of highly heat-sensitive or structurally delicate products justifies freezing and sublimation.
For most commodity starch, food slurries and ingredient applications, freeze drying would represent a fundamentally different process philosophy.
Applications of Drum / Roller Dryers
Starch is one of the strongest application areas for contact drum drying.
Potential applications include:
- Native starch
- Modified starch
- Pre-gelatinized starch
- Potato starch
- Tapioca/cassava starch
- Corn starch
- Wheat starch
- Rice starch
- Pea starch
Drum drying can be particularly relevant when the desired product properties include controlled solubility, gelatinization or instant functionality.
ANDRITZ’s starch-processing portfolio specifically identifies contact drum drying for starch modification and highlights properties including improved solubility and modified functional behaviour.
Potato products can be processed into flakes using controlled drum drying.
Important parameters include:
- Potato solids
- Feed viscosity
- Film thickness
- Drum temperature
- Drum speed
- Residence time
- Scraper settings
- Final moisture
The objective is not merely to produce a dry product.
The process must deliver the desired:
- Flake structure
- Reconstitution behaviour
- Texture
- Colour
- Moisture
- Bulk density
Commercial contact-drum systems identify potatoes and potato-based products among their food applications.
Potential applications include:
- Milk-based ingredients
- Dairy concentrates
- Milk powder
- Whey derivatives
- Protein-containing products
- Specialty dairy ingredients
Drum drying can create product characteristics different from conventional spray drying.
For example, drum-dried dairy ingredients can develop specific flavour and functional characteristics depending on the formulation and process.
ANDRITZ currently lists milk and dairy applications for its contact drum technology and describes drum-dried milk powder as a dedicated application area.
4. Food Slurries and Purees
Drum drying can be considered for concentrated:
- Fruit purees
- Vegetable purees
- Tomato products
- Food pastes
- Cereal slurries
- Concentrated sauces
- Ingredient suspensions
The product must be sufficiently suitable for controlled film formation and removal from the drum.
5. Cereal Products
Potential applications include:
- Cereal flakes
- Infant-food ingredients
- Cereal-based drinks
- Instant food ingredients
- Breakfast cereal components
Commercial contact drum systems identify cereal-based baby foods and cereal products among drum-drying applications.
6. Gelatin and Protein Products
Drum drying can be considered for selected:
- Gelatin
- Hydrolyzed proteins
- Vegetable proteins
- Animal proteins
- Protein concentrates
Feed rheology and thermal sensitivity are particularly important for these materials.
7. Yeast and Fermentation Products
Potential applications include:
- Baker’s yeast
- Yeast extracts
- Fermentation-derived ingredients
- Protein-rich fermentation products
The feed’s solids content, viscosity and thermal characteristics should determine the appropriate configuration.
8. Chemical Products
Drum drying is not restricted to food.
GTI’s existing Drum Dryer portfolio identifies applications including:
- Calcium chloride
- Sodium silicate
- Industrial salts
- Dyes
- Pigments
- Chemical intermediates
- Resins
- Agrochemical products
- Catalysts
The appropriate design depends strongly on chemical compatibility, viscosity, solids concentration, corrosion potential and desired final form.
9. Pharmaceutical and Botanical Extracts
Selected pharmaceutical and botanical extracts may be processed using drum drying where the product’s thermal characteristics and required final form make the technology appropriate.
Potential considerations include:
- Product temperature
- Active-component stability
- Solubility
- Film formation
- Cleaning
- Containment
- Material of construction
A product-specific evaluation is essential before recommending drum drying for a pharmaceutical product.
10. Industrial Concentrates and ZLD Applications
GTI also identifies Drum Dryer applications in industrial effluent and concentrate processing, including selected ZLD and industrial-sludge-related applications.
However, contact drum drying should not be confused with rotary drum sludge drying.
The feed characteristics determine which technology is appropriate.
What Makes Drum Drying Different for Starch?
Starch is particularly interesting because the drying process can influence its functional characteristics.
Depending on the feed and process conditions, drum drying may be used to achieve controlled transformation of starch properties.
Potential objectives include:
- Improved solubility
- Pre-gelatinization
- Improved instant functionality
- Modified texture
- Controlled flake formation
- Desired reconstitution behaviour
For modified starch, process conditions should be selected based on the required functional specification rather than simply the target moisture.
Drum Dryer for Modified Starch
Modified starch manufacturers may require controlled thermal treatment to obtain specific functional properties.
The process can involve:
Starch Slurry → Concentration → Feed Conditioning → Drum Drying → Scraping → Milling → Sifting → Packaging
The key variables may include:
- Feed concentration
- Viscosity
- Drum temperature
- Film thickness
- Drum speed
- Residence time
- Product moisture
- Scraper pressure
- Cooling
ANDRITZ identifies contact drum drying as a core technology within starch modification processes.
How to Control Drum Dryer Product Quality
Product quality is strongly influenced by process variables.
Drum Temperature
Controls the heat-transfer driving force.
Drum Speed
Controls the approximate contact/residence period.
Film Thickness
Controls the amount of material being dried per unit surface area.
Feed Rate
Determines the loading of the drum surface.
Feed Solids
Affects drying load and final product structure.
Feed Viscosity
Affects film formation.
Scraper Setting
Influences film removal and product form.
Steam Pressure
Influences drum surface temperature.
Cooling
Can affect the final product’s physical condition after scraping.
GTI’s current technical description identifies drum speed, steam pressure, film thickness/feed setting and condensate evacuation as important variables for moisture control.
Common Drum Dryer Problems and Solutions
Problem 1: Product Does Not Form a Uniform Film
Possible causes
- Feed viscosity too high/low
- Uneven feed distribution
- Incorrect applicator setting
- Incorrect drum speed
- Poor surface condition
Corrective approach
Evaluate feed rheology, feed system, drum speed and film-application geometry.
Problem 2: Product Sticks to the Drum
Possible causes
- Incorrect moisture endpoint
- Excessive product adhesion
- Incorrect drum temperature
- Incorrect scraper setting
- Product-specific surface interaction
Corrective approach
Review drum surface, film thickness, temperature, scraper geometry and product formulation.
Problem 3: Product Comes Off Too Wet
Possible causes
- Excessive film thickness
- High feed rate
- Low drum temperature
- Excessive drum speed
- High feed moisture
Corrective approach
Adjust the drying balance rather than simply increasing temperature.
Problem 4: Product Becomes Too Dark
Possible causes
- Excessive thermal exposure
- Excessive drum temperature
- Excessively long contact time
- Product-specific thermal reactions
Corrective approach
Evaluate drum temperature, rotation speed, film thickness and product stability.
Problem 5: Flakes Are Too Thick
Possible causes
- Excessive film thickness
- Feed application problem
- Incorrect drum speed
- Scraper settings
Corrective approach
Optimize feed application and film thickness.
Problem 6: Product Powder Is Too Fine
Possible causes
- Excessive downstream milling
- Brittle dried film
- Incorrect scraping conditions
- Product formulation
Corrective approach
Review scraping and downstream milling/sifting rather than modifying the drying temperature alone.
Problem 7: Steam Consumption Is Too High
Possible causes
- Poor insulation
- Excessive evaporation load
- Incorrect drum loading
- Excessive heat loss
- Inefficient steam/condensate management
Corrective approach
Review the complete thermal balance, steam system, condensate removal and feed loading.
How to Improve Drum Dryer Energy Efficiency
A drum dryer is an indirect dryer, so thermal efficiency depends heavily on the relationship between:
Feed Load + Evaporation Duty + Drum Surface + Steam Conditions + Film Thickness + Drum Speed
Potential efficiency measures include:
- Optimizing feed solids
- Maintaining uniform film thickness
- Reducing unnecessary heat loss
- Proper insulation
- Efficient condensate removal
- Correct steam pressure
- Optimized drum speed
- Heat recovery where practical
- Avoiding excessive drying beyond the required endpoint
Commercial drum-drying systems can achieve high thermal efficiency because heat is transferred directly through the drum surface rather than heating a large volume of drying air.
Vacuum Drum Dryer for Heat-Sensitive Food Products
A vacuum configuration can be considered where the product is particularly sensitive to:
- Oxidation
- Thermal degradation
- Nutrient loss
- Colour change
- Flavour deterioration
Under vacuum, evaporation can occur at lower temperatures than at atmospheric pressure.
Commercial vacuum drum dryers are specifically used for selected heat-sensitive food components. ANDRITZ describes vacuum drum drying as an option for heat-sensitive products and notes its use for food applications.
However, vacuum operation should be considered an application-specific configuration, not a default requirement for every drum dryer.
Hygienic Design for Food and Dairy Drum Dryers
Food and dairy applications require more than thermal performance.
Important considerations include:
- Product-contact material
- Surface finish
- Cleanability
- Accessibility
- Hygienic feed system
- Product recovery
- Cleaning procedures
- Cross-contamination control
- Drainability where relevant
- CIP requirements
Commercial food drum-drying systems can be designed around hygienic standards and cleaning accessibility.
The exact hygienic specification should be established from the product, plant and applicable food-safety requirements.
Drum Surface Material and Construction
The drum surface is one of the most important components because it directly contacts the product.
Material selection should consider:
- Product chemistry
- Food-contact requirements
- Corrosion
- Abrasion
- Thermal conductivity
- Surface finish
- Product adhesion
- Cleaning chemistry
Depending on application, engineered drum surfaces and coatings may be considered.
For food and pharmaceutical applications, appropriate stainless-steel construction and hygienic surface requirements should be evaluated against the specific process.
For aggressive chemical products, corrosion-resistant materials or engineered surface treatments may be required.
Doctor Blade / Scraper: Why It Matters
The doctor blade is not simply a discharge component.
It directly influences:
- Product recovery
- Film removal
- Flake thickness
- Drum surface condition
- Product loss
- Product particle characteristics
The blade must be designed around:
- Product adhesion
- Drum material
- Surface finish
- Film thickness
- Product temperature
- Desired final form
GTI’s current Drum Dryer design includes adjustable doctor-blade mechanisms.
Drum Speed and Drying Time
Drum speed affects the time the product remains in contact with the heated surface.
Faster drum speed
Potentially:
- Shorter contact time
- Higher throughput
- Higher residual moisture if other variables remain unchanged
Slower drum speed
Potentially:
- Longer contact time
- More evaporation
- Greater thermal exposure
The optimum speed is product-specific.
There is no universal drum speed suitable for every material.
How to Select the Right Drum Dryer
Before selecting a Drum Dryer, evaluate:
1. Feed Type
Is it:
- Liquid?
- Slurry?
- Paste?
- Suspension?
- Concentrate?
2. Feed Solids
What percentage of solids enters the dryer?
3. Feed Viscosity
Can the material be pumped and spread as a uniform film?
4. Initial Moisture
How much water or solvent must be removed?
5. Final Moisture
What moisture specification is required?
6. Product Temperature Limit
How much thermal exposure can the product tolerate?
7. Desired Product Form
Do you need:
- Flakes?
- Sheets?
- Granules?
- Powder?
8. Throughput
What is the required production rate?
9. Heating Medium
Is steam available?
If not, another heating configuration may need to be evaluated.
10. Product Quality
What properties must be preserved?
For starch:
solubility / gelatinization / viscosity / reconstitution
For dairy:
flavour / colour / solubility / texture
For puree:
colour / flavour / moisture / reconstitution
Drum Dryer Capacity: What Buyers Need to Know
A buyer should not specify only:
“I need a 1-ton-per-hour Drum Dryer.”
The manufacturer needs to understand what the one tonne represents.
For example:
1 tonne/hour wet feed
is very different from:
1 tonne/hour dry product.
The capacity calculation should consider:
- Wet feed rate
- Dry solids rate
- Initial moisture
- Final moisture
- Feed solids
- Evaporation load
- Feed temperature
- Product temperature
- Film thickness
- Drum surface area
- Drying time
- Heating medium
- Drum speed
Drum Dryer Evaporation Load
A simple mass balance can provide the starting point.
If:
Wet feed = 1,000 kg/h
Initial moisture = 60%
then:
Water entering = 600 kg/h
If the target final moisture is 5% wet basis, the final product flow is approximately:
400 / 0.95 = 421 kg/h
and approximately:
579 kg/h
of water must be removed.
This is only a simplified mass balance.
Actual equipment sizing also requires consideration of:
- Product-specific drying kinetics
- Heat-transfer coefficient
- Film characteristics
- Feed temperature
- Drum temperature
- Residence/contact time
- Product properties
- Heat losses
Therefore, evaporation duty alone is not enough to determine the final drum dimensions.
Why Pilot Testing Is Valuable
Drum drying is highly product-dependent.
A laboratory or pilot trial can help establish:
- Film formation
- Product adhesion
- Drying rate
- Scraping behaviour
- Required drum temperature
- Drum speed
- Film thickness
- Final moisture
- Flake characteristics
- Product colour
- Solubility
- Texture
This is particularly important for:
- Modified starch
- Potato products
- Dairy ingredients
- New food formulations
- Specialty chemicals
- Heat-sensitive products
GTI’s current Drum Dryer page identifies in-house laboratory/pilot testing for evaporation rates, drying speed and flaking characteristics as part of its engineering approach.
Drum Dryer for Food Ingredients: Quality Is More Than Moisture
For food ingredients, a successful drying process may need to achieve several specifications simultaneously.
Example: Starch
Not just:
Final moisture = X%
but also:
- Solubility
- Viscosity
- Gel characteristics
- Reconstitution
- Colour
- Particle size
Example: Potato
Not just:
Final moisture = X%
but also:
- Flake structure
- Colour
- Reconstitution
- Texture
Example: Dairy
Not just:
Final moisture = X%
but also:
- Solubility
- Flavour
- Colour
- Bulk density
- Functional properties
This is why drum-dryer selection should start with the finished product specification, not simply the evaporation requirement.
What Information Should You Send GTI for a Drum Dryer Quotation?
For a meaningful engineering proposal, provide:
Feed Information
- Product name
- Product type
- Feed rate
- Feed temperature
- Initial moisture
- Total solids
- Soluble solids
- Viscosity
- Density
- pH where relevant
- Particle/suspension characteristics
Final Product
- Final moisture
- Required product form
- Flake thickness
- Powder particle size if applicable
- Solubility
- Reconstitution requirements
- Colour specification
- Functional properties
Process Requirements
- Required throughput
- Operating hours/day
- Available steam pressure
- Available utilities
- Required automation
- CIP requirements
- Vacuum requirement, if applicable
- Vapour-exhaust requirements
Plant Information
- Country
- Installation location
- Available space
- Hazardous-area requirements where applicable
- Food/pharma/chemical standards
- Upstream equipment
- Downstream equipment
Example of a Strong Drum Dryer RFQ
Instead of:
“Please quote a 2 TPH Drum Dryer.”
Send:
Product: Modified starch
Wet feed: 2,000 kg/h
Feed solids: 35%
Initial moisture: 65%
Target moisture: 8%
Feed temperature: XX°C
Viscosity: XX cP
Required product form: Flakes
Required solubility: XX
Available steam: XX bar
Operating hours: XX h/day
Plant location: XX
CIP: Required
Automation: PLC/HMI
This gives the engineering team a much better basis for evaluating:
Drum diameter + drum length + heating area + feed system + scraper + steam requirement + downstream handling.
Drum Dryer Troubleshooting Checklist
If the product quality changes unexpectedly, check:
Feed
- Solids concentration
- Viscosity
- Temperature
- Flow rate
Drum
- Steam pressure
- Surface temperature
- Drum speed
- Surface condition
Film
- Thickness
- Uniformity
- Adhesion
Scraper
- Blade pressure
- Blade angle
- Blade condition
Product
- Moisture
- Colour
- Texture
- Solubility
- Flake size
A change in any one of these parameters can influence final product quality.
Drum Dryer for Global Food & Chemical Markets
GTI’s Drum Dryer pillar can target commercial search intent across international markets.
Core global keywords
- Drum Dryer Manufacturer
- Drum Dryer Manufacturer India
- Roller Dryer Manufacturer India
- Industrial Drum Dryer
- Industrial Roller Dryer
- Contact Drum Dryer Manufacturer
- Food Drum Dryer Manufacturer
- Starch Drum Dryer Manufacturer
- Starch Roller Dryer
- Potato Flake Drum Dryer
- Dairy Drum Dryer
- Milk Drum Dryer
- Food Ingredient Drum Dryer
- Puree Drum Dryer
- Slurry Drum Dryer
- Chemical Drum Dryer
- Single Drum Dryer Manufacturer
- Double Drum Dryer Manufacturer
- Vacuum Drum Dryer Manufacturer
- Continuous Drum Dryer Manufacturer
Global Keyword Opportunities
Supporting country pages can target:
- Drum Dryer Manufacturer USA
- Drum Dryer Manufacturer Germany
- Drum Dryer Manufacturer UK
- Drum Dryer Manufacturer France
- Drum Dryer Manufacturer Italy
- Drum Dryer Manufacturer Spain
- Drum Dryer Manufacturer Netherlands
- Drum Dryer Manufacturer Switzerland
- Drum Dryer Manufacturer Japan
- Drum Dryer Manufacturer South Korea
- Drum Dryer Manufacturer Singapore
- Drum Dryer Manufacturer Indonesia
- Drum Dryer Manufacturer Malaysia
- Drum Dryer Manufacturer Vietnam
- Drum Dryer Manufacturer Thailand
- Drum Dryer Manufacturer UAE
- Drum Dryer Manufacturer Saudi Arabia
- Drum Dryer Manufacturer Brazil
- Drum Dryer Manufacturer Mexico
- Drum Dryer Manufacturer Australia
Local-Language Opportunities
Germany
- Trommeltrockner für Lebensmittel
- Walzentrockner
- Walzentrockner für Stärke
- Kontakt-Trommeltrockner
- Trommeltrockner für Milchprodukte
France
- sécheur à tambour
- sécheur à rouleaux
- sécheur à tambour pour amidon
- sécheur de produits alimentaires
Spain
- secador de tambor
- secador de rodillos
- secador de tambor para almidón
- secador industrial de alimentos
Italy
- essiccatore a tamburo
- essiccatore a rulli
- essiccatore a tamburo per amido
- essiccatore alimentare industriale
Indonesia
- mesin pengering drum
- drum dryer untuk pati
- roller dryer Indonesia
- mesin pengering makanan industri
- mesin pengering pati
Japan
- ドラムドライヤー
- ロールドライヤー
- 澱粉乾燥機
- 食品用ドラム乾燥機
- 連続式ドラム乾燥機
GTI Drum Dryer Technology: From Feed Testing to Industrial Production
GTI Dryers approaches Drum Dryer selection around the actual product rather than selling a fixed machine size.
The engineering sequence should be:
Product
↓
Feed Rheology
↓
Moisture / Solids
↓
Required Product Properties
↓
Film Formation
↓
Drying Rate
↓
Drum Configuration
↓
Drum Surface
↓
Feed System
↓
Scraper System
↓
Heating & Condensate System
↓
Automation
↓
Downstream Milling / Sifting
↓
Packaging / Further Processing
GTI’s current Drum Dryer offering describes custom engineering based on rheology, heat sensitivity, initial moisture and required output, with pilot testing and turnkey engineering support.
Why Choose GTI as a Drum / Roller Dryer Manufacturer?
GTI Dryers can develop Drum Dryer systems around:
- Product rheology
- Feed solids
- Moisture load
- Heat sensitivity
- Required product form
- Drying rate
- Throughput
- Drum configuration
- Heating medium
- Feed application
- Scraper arrangement
- Automation
- Hygienic requirements
- Downstream product handling
GTI Drum Dryer applications include:
Starch → Modified Starch → Potato Products → Dairy Ingredients → Milk-Based Products → Food Purees → Cereal Products → Yeast → Proteins → Chemicals → Specialty Materials
The company’s existing portfolio also separates Drum Dryer technology from Rotary Drum Dryer technology, allowing the drying system to be selected according to feed form and heat-transfer mechanism.
Engineered in India. Designed for Global Food, Starch, Dairy & Chemical Industries.
Frequently Asked Questions
What is a Drum Dryer?
A Drum Dryer is a continuous indirect-contact dryer in which liquid, slurry or paste is applied as a thin film to a heated rotating drum. Moisture evaporates and the dried film is scraped from the surface.
What is a Roller Dryer?
Roller Dryer is another term commonly used for contact drum drying, especially in food, starch and ingredient-processing applications.
What is the difference between Drum Dryer and Rotary Drum Dryer?
A contact Drum Dryer dries a thin product film on a heated rotating drum using conductive heat transfer. A Rotary Drum Dryer generally dries bulk solids using hot gas and a rotating cylindrical shell.
What products can be dried in a Drum Dryer?
Potential products include starch, modified starch, potato products, dairy ingredients, milk-based products, cereal slurries, fruit purees, vegetable concentrates, yeast, proteins and selected chemicals.
Can a Drum Dryer dry starch?
Yes. Starch and starch derivatives are important applications for contact drum drying, particularly where controlled functional properties, solubility or pre-gelatinization are required.
Can a Drum Dryer produce potato flakes?
Yes. Potato-based feed can be drum dried to form a dried film that is subsequently handled as flakes or processed further, depending on the product specification.
Can Drum Dryers be used for milk or dairy products?
Yes. Selected milk and dairy ingredients can be processed using drum drying. The process conditions must be designed around the required flavour, solubility, moisture and functional properties.
What is the difference between Single Drum and Double Drum Dryer?
A Single Drum Dryer uses one heated drum and can use applicator rolls or dip-feed arrangements. A Double Drum Dryer uses two rotating drums and can be suitable for different feed viscosities and feed-application requirements.
Can a Drum Dryer handle viscous products?
Yes. Drum dryers are particularly useful for appropriately formulated viscous, pasty and slurry feeds because the product is spread as a controlled film rather than atomized through a spray nozzle.
Can a Drum Dryer operate under vacuum?
Yes, a vacuum configuration can be engineered for suitable heat-sensitive products and applications.
What controls Drum Dryer moisture?
Important variables include feed solids, film thickness, drum temperature/steam conditions, drum speed, feed rate and product characteristics.
How is the dried product removed?
A doctor blade or scraper removes the dried film from the rotating drum.
Does a Drum Dryer produce powder?
It can produce dried sheets or flakes directly. A downstream mill, crusher or sifter can be used when a powder or controlled particle-size product is required.
Is Drum Drying more suitable than Spray Drying?
Neither technology is universally better. Drum drying may be attractive for concentrated, viscous or paste-like feeds and where flakes or specific functional properties are desired. Spray drying is often selected when a fine powder and atomization-based process are required.
How is a Drum Dryer sized?
Sizing requires wet feed rate, solids/moisture, final moisture, evaporation load, feed temperature, viscosity, product properties, required throughput and drying conditions.
Is pilot testing required?
Pilot testing is highly useful for new or difficult products because film formation, adhesion, drying rate and final product properties are strongly product-dependent.
Get a Drum / Roller Dryer Designed for Your Product
A Drum Dryer should not be selected simply by saying:
“I need a 1 TPH dryer.”
The right question is:
“What product are we drying, what is its feed concentration and rheology, how much moisture must be removed, and what final product characteristics must the dryer deliver?”
GTI Dryers can evaluate:
Feed → Solids → Rheology → Evaporation Load → Film Formation → Drum Configuration → Drying Conditions → Product Quality → Downstream Processing
Send GTI:
Product:
Wet feed rate:
Feed moisture:
Feed solids:
Feed viscosity:
Feed temperature:
Target final moisture:
Required product form:
Required solubility/functionality:
Available steam pressure:
Operating hours/day:
Plant location:
CIP/hygienic requirement:
Automation requirement:
GTI can then evaluate whether a Single Drum Dryer, Double Drum Dryer, Vacuum Drum Dryer or another drying technology is the appropriate solution.
GTI Dryers — Engineered in India. Designed for Global Industries.