Evaporators

Rototech Engineering Systems is a leading manufacturer of advanced drying solutions, catering to the diverse needs of industries across India. With a strong commitment to innovation and customer satisfaction, we have established ourselves as a trusted partner for various applications.

 

Agitated Thin Film Dryer (ATFD)

Our ATFD is a state-of-the-art drying solution designed to efficiently dry a wide range of materials, including heat-sensitive products. This system is suitable for various industries, including pharmaceuticals, chemicals, and food processing.

 

Features of Our ATFD

- High-Efficiency Drying: Our ATFD provides high-efficiency drying, reducing processing time and costs.

- Gentle Product Handling: The system is designed to handle products gently, preserving their quality and integrity.

- Flexible Design: Our ATFD is available in various configurations, catering to specific application requirements.

 

Benefits of Our ATFD

- Improved Product Quality: Our ATFD ensures improved product quality, reducing the risk of degradation or contamination.

- Increased Productivity: The system increases productivity, reducing processing time and costs.

- Easy Maintenance: Our ATFD is designed for easy maintenance, reducing downtime and costs.

 

Applications of Our ATFD

- Pharmaceuticals: Our ATFD is widely used in pharmaceuticals, drying active pharmaceutical ingredients (APIs) and intermediates.

- Chemicals: The system is used in chemicals, drying various chemical products and intermediates.

- Food Processing: Our ATFD is suitable for food processing, drying food products and ingredients.

 

Why Choose Rototech Engineering Systems?

- Experience and Expertise: We have extensive experience and expertise in manufacturing advanced drying solutions.

- Innovation and Quality: Our products are designed to provide innovative and high-quality solutions for various applications.

- Customer Satisfaction: We prioritize customer satisfaction, ensuring timely delivery and excellent service.

- Pan India Presence: We deal pan India, catering to the diverse needs of industries across the country.

 

Contact Us

If you're looking for a reliable partner for your drying needs, contact us today to discuss your specific requirements and learn more about our products and services.

Rototech Engineering Systems is a leading manufacturer of advanced evaporator solutions, catering to the diverse needs of industries across India. With a strong commitment to innovation and customer satisfaction, we have established ourselves as a trusted partner for various applications.
Mechanical Evaporator PlantOur Mechanical Evaporator Plant is a highly efficient and reliable solution designed for various industrial applications. This system uses mechanical vapor recompression technology to reduce energy consumption and increase productivity.
Features of Our Mechanical Evaporator Plant- High Efficiency: Our Mechanical Evaporator Plant is designed to provide high efficiency, reducing energy consumption and operating costs.- Durable Construction: The system is built with durable materials, ensuring long-lasting performance and minimal maintenance.- Customizable Design: Our Mechanical Evaporator Plant is available in various configurations, catering to specific application requirements.
Benefits of Our Mechanical Evaporator Plant- Reduced Energy Consumption: Our Mechanical Evaporator Plant reduces energy consumption, lowering operating costs and environmental impact.- Increased Productivity: The system increases productivity, reducing processing time and costs.- Improved Product Quality: Our Mechanical Evaporator Plant ensures improved product quality, reducing the risk of degradation or contamination.
Applications of Our Mechanical Evaporator Plant- Chemical Processing: Our Mechanical Evaporator Plant is widely used in chemical processing, evaporating various chemical solutions and intermediates.- Pharmaceuticals: The system is used in pharmaceuticals, evaporating active pharmaceutical ingredients (APIs) and intermediates.- Food Processing: Our Mechanical Evaporator Plant is suitable for food processing, evaporating food products and ingredients.
Why Choose Rototech Engineering Systems?- Experience and Expertise: We have extensive experience and expertise in manufacturing advanced evaporator solutions.- Innovation and Quality: Our products are designed to provide innovative and high-quality solutions for various applications.- Customer Satisfaction: We prioritize customer satisfaction, ensuring timely delivery and excellent service.- Pan India Presence: We deal pan India, catering to the diverse needs of industries across the country.
Contact UsIf you're looking for a reliable partner for your evaporator needs, contact us today to discuss your specific requirements and learn more about our products and services.

Product Details:

ATFD stands for Agitated Thin Film Dryer. It is a type of industrial dryer used to concentrate, dry, and recover valuable materials from slurry, pastes, or viscous liquids—especially when the feed contains high solids and has poor flow properties.

🔧 Working Principle of ATFD:

1. Feed Introduction:

   • The concentrated slurry or liquid is fed from the top onto a heated rotating cylinder (usually jacketed).

2. Thin Film Formation:

   • An agitator with blades rotates inside the dryer, spreading the feed into a thin film over the heated surface.

3. Evaporation:

   • The thin film enhances heat transfer, allowing moisture to rapidly evaporate from the film surface.

4. Dry Product Discharge:

   • The dried solid (usually powder or flakes) is scraped off and collected at the bottom.

   • Vapors are condensed and collected separately.

🏭 Applications of ATFD:

• Zero Liquid Discharge (ZLD) systems

• Effluent treatment in pharma and chemical industries

• Dye and pigment industries

• Concentration of inorganic salts and organics

• Recovery of valuable solvents or chemicals

✅ Advantages of ATFD:

• Handles highly viscous, sticky, or heat-sensitive materials

• Continuous operation with minimal maintenance

• Compact design

• Low residence time, reducing thermal degradation

Additional Information:

• Production Capacity: 50 M2
• Delivery Time: 8 WEEKS

Product Details:

MVR (Mechanical Vapor Recompression) is an energy-efficient evaporation technology used to reuse vapor generated during evaporation by compressing it and using it again as a heating medium. It is widely used in zero liquid discharge (ZLD) systems, effluent treatment, desalination, and chemical processing.

�� Working Principle of MVR:

1. Evaporation Begins:

   • A liquid is heated and starts to evaporate, generating water vapor.

2. Vapor Compression:

   • The generated vapor is compressed using a mechanical compressor or blower.

   • Compression raises the temperature and pressure of the vapor.

3. Vapor Reuse:

   • This compressed vapor is then used as the heat source (instead of steam) in the heat exchanger or evaporator to continue evaporation of incoming liquid.

4. Condensate Collection:

   • The vapor condenses after transferring its heat and is collected as pure water (condensate).

⚙️ Key Components: ✅ Advantages of MVR:

• Up to 90–95% energy saving compared to traditional evaporation

• Uses electricity instead of steam

• Compact design, fewer utilities required

• Environmentally friendly (low emissions)

• Ideal for zero liquid discharge (ZLD) systems

❌ Limitations:

• High capital cost (especially compressor)

• Not ideal for very viscous or scaling liquids

• Requires stable electricity supply

• Compressor maintenance is critical

�� Common Applications:

• Effluent Treatment Plants (ETPs)

• Desalination

• Pharma & chemical process concentration

• Food & dairy (milk, juice concentration)

• ZLD systems in textiles, distilleries, etc

Additional Information:

• Delivery Time: 8

Rototech Engineering Systems is a leading manufacturer of advanced drying solutions, catering to the diverse needs of industries across India. With a strong commitment to innovation and customer satisfaction, we have established ourselves as a trusted partner for various applications.

 

Agitated Thin Film Dryer (ATFD)

Our ATFD is a state-of-the-art drying solution designed to efficiently dry a wide range of materials, including heat-sensitive products. This system is suitable for various industries, including pharmaceuticals, chemicals, and food processing.

 

Features of Our ATFD

- High-Efficiency Drying: Our ATFD provides high-efficiency drying, reducing processing time and costs.

- Gentle Product Handling: The system is designed to handle products gently, preserving their quality and integrity.

- Flexible Design: Our ATFD is available in various configurations, catering to specific application requirements.

 

Benefits of Our ATFD

- Improved Product Quality: Our ATFD ensures improved product quality, reducing the risk of degradation or contamination.

- Increased Productivity: The system increases productivity, reducing processing time and costs.

- Easy Maintenance: Our ATFD is designed for easy maintenance, reducing downtime and costs.

 

Applications of Our ATFD

- Pharmaceuticals: Our ATFD is widely used in pharmaceuticals, drying active pharmaceutical ingredients (APIs) and intermediates.

- Chemicals: The system is used in chemicals, drying various chemical products and intermediates.

- Food Processing: Our ATFD is suitable for food processing, drying food products and ingredients.

 

Why Choose Rototech Engineering Systems?

- Experience and Expertise: We have extensive experience and expertise in manufacturing advanced drying solutions.

- Innovation and Quality: Our products are designed to provide innovative and high-quality solutions for various applications.

- Customer Satisfaction: We prioritize customer satisfaction, ensuring timely delivery and excellent service.

- Pan India Presence: We deal pan India, catering to the diverse needs of industries across the country.

 

Contact Us

If you're looking for a reliable partner for your drying needs, contact us today to discuss your specific requirements and learn more about our products and services.

Product Details:

MVR (Mechanical Vapor Recompression) is an energy-efficient evaporation technology used to reuse vapor generated during evaporation by compressing it and using it again as a heating medium. It is widely used in zero liquid discharge (ZLD) systems, effluent treatment, desalination, and chemical processing.

�� Working Principle of MVR:

1. Evaporation Begins:

   • A liquid is heated and starts to evaporate, generating water vapor.

2. Vapor Compression:

   • The generated vapor is compressed using a mechanical compressor or blower.

   • Compression raises the temperature and pressure of the vapor.

3. Vapor Reuse:

   • This compressed vapor is then used as the heat source (instead of steam) in the heat exchanger or evaporator to continue evaporation of incoming liquid.

4. Condensate Collection:

   • The vapor condenses after transferring its heat and is collected as pure water (condensate).

⚙️ Key Components: ✅ Advantages of MVR:

• Up to 90–95% energy saving compared to traditional evaporation

• Uses electricity instead of steam

• Compact design, fewer utilities required

• Environmentally friendly (low emissions)

• Ideal for zero liquid discharge (ZLD) systems

❌ Limitations:

• High capital cost (especially compressor)

• Not ideal for very viscous or scaling liquids

• Requires stable electricity supply

• Compressor maintenance is critical

�� Common Applications:

• Effluent Treatment Plants (ETPs)

• Desalination

• Pharma & chemical process concentration

• Food & dairy (milk, juice concentration)

• ZLD systems in textiles, distilleries, etc

Additional Information:

• Production Capacity: 10
• Delivery Time: 8 WEEKS
• Packaging Details: AS PER REQUIREMEMNT

Product Details:

A Multi Effect Evaporator (MEE) is an industrial system used to concentrate liquids—typically by removing water through evaporation—using multiple stages (effects) to save energy. It is widely used in industries like chemicals, pharmaceuticals, food, distilleries, pulp & paper, and in Zero Liquid Discharge (ZLD) systems.

🔧 Working Principle of Multi Effect Evaporator

The system works on the principle of evaporation under reduced pressure and steam reuse across multiple effects, reducing steam consumption:

1. First Effect: Live steam is supplied to the first evaporator. It heats the feed solution, and water evaporates.

2. Second Effect: The vapor from the first effect (still hot) is used as the heating medium for the second effect.

3. Subsequent Effects: This process continues across 3, 4, 5, or more effects. The boiling point drops in each effect due to vacuum, enabling evaporation at lower temperatures.

4. Final Concentration: Concentrated product is collected at the last effect, and vapors are condensed via condensers or reused via MVR (Mechanical Vapor Recompression).

📊 Key Features ⚙️ Types of MEEs

1. Forward Feed – Feed enters first effect and moves forward; simple and energy-efficient for hot feed.

2. Backward Feed – Feed enters last effect and moves backward; more suitable for viscous or heat-sensitive fluids.

3. Mixed Feed – Combination of forward and backward for optimal performance.

4. Thermal Vapor Recompression (TVR) or Mechanical Vapor Recompression (MVR) can be added for enhanced energy savings.

🧪 Applications

• Zero Liquid Discharge (ZLD) Systems

• Effluent concentration in chemical industries

• Dairy industry for milk concentration

• Sugar industry for syrup concentration

• Pharmaceuticals – to concentrate APIs or intermediates

• Textile/Dyeing plants – for wastewater treatment

📐 Design Considerations

• Heat Transfer Area

• Boiling Point Elevation (BPE)

• Viscosity of the fluid

• Scaling tendency

• Corrosiveness (use of SS316, Duplex, or Titanium)

• Vacuum and steam requirements

Additional Information:

• Production Capacity: 10
• Delivery Time: 1 WEEK
• Packaging Details: AS PER REQUIREMENT

Rototech Engineering Systems is a leading manufacturer of advanced drying solutions, catering to the diverse needs of industries across India. With a strong commitment to innovation and customer satisfaction, we have established ourselves as a trusted partner for various applications.

 

Agitated Thin Film Dryer (ATFD)

Our ATFD is a state-of-the-art drying solution designed to efficiently dry a wide range of materials, including heat-sensitive products. This system is suitable for various industries, including pharmaceuticals, chemicals, and food processing.

 

Features of Our ATFD

- High-Efficiency Drying: Our ATFD provides high-efficiency drying, reducing processing time and costs.

- Gentle Product Handling: The system is designed to handle products gently, preserving their quality and integrity.

- Flexible Design: Our ATFD is available in various configurations, catering to specific application requirements.

 

Benefits of Our ATFD

- Improved Product Quality: Our ATFD ensures improved product quality, reducing the risk of degradation or contamination.

- Increased Productivity: The system increases productivity, reducing processing time and costs.

- Easy Maintenance: Our ATFD is designed for easy maintenance, reducing downtime and costs.

 

Applications of Our ATFD

- Pharmaceuticals: Our ATFD is widely used in pharmaceuticals, drying active pharmaceutical ingredients (APIs) and intermediates.

- Chemicals: The system is used in chemicals, drying various chemical products and intermediates.

- Food Processing: Our ATFD is suitable for food processing, drying food products and ingredients.

 

Why Choose Rototech Engineering Systems?

- Experience and Expertise: We have extensive experience and expertise in manufacturing advanced drying solutions.

- Innovation and Quality: Our products are designed to provide innovative and high-quality solutions for various applications.

- Customer Satisfaction: We prioritize customer satisfaction, ensuring timely delivery and excellent service.

- Pan India Presence: We deal pan India, catering to the diverse needs of industries across the country.

 

Contact Us

If you're looking for a reliable partner for your drying needs, contact us today to discuss your specific requirements and learn more about our products and services.

A Plate Type Heat Exchanger is a highly efficient and compact device used to transfer heat between two fluids using corrugated metal plates instead of tubes. It is widely used in HVAC, food & beverage, dairy, pharma, and chemical industries.

⚙️ Working Principle:

1. A series of thin, corrugated metal plates are stacked together.

2. Hot and cold fluids flow through alternate channels formed between the plates.

3. Each plate allows heat to transfer from the hot fluid on one side to the cold fluid on the other — without mixing the fluids.

4. Gaskets or welded seals ensure proper flow paths and leak-free operation.

📐 Construction Details: 🔁 Types of Plate Heat Exchangers:

1. Gasketed PHE – Easy to clean and service; commonly used.

2. Brazed PHE – Compact, sealed; used in refrigeration and HVAC.

3. Welded PHE – For high pressure/temp, chemical resistance.

4. Semi-welded PHE – Combines gasketed and welded designs.

🔄 Flow Arrangement:

• Counterflow: Most efficient; hot and cold fluids flow in opposite directions.

• Parallel flow: Both fluids move in the same direction (less efficient).

✅ Advantages:

• High heat transfer efficiency due to turbulence

• Compact and lightweight

• Easy to expand or clean (in gasketed models)

• Low fouling

• Ideal for low-viscosity fluids

❌ Limitations:

• Not suitable for high viscosity or particle-laden fluids

• Gaskets may wear over time (maintenance needed)

• Pressure and temperature limits (compared to shell & tube)

🏭 Common Applications:

• Milk pasteurization

• Beer and juice cooling

• HVAC chillers

• Engine oil cooling

• Chemical processing

Would you like:

• A diagram showing fluid flow?

• A comparison with Shell & Tube heat exchanger?

• Info in Gujarati or for a specific application (e.g., milk, water, oil)?

Let me know your use case and I can tailor the explanation