Scraped surface heat exchanger for high viscous products
Efficiently handle the cooling and heating of high viscous products while preserving product integrity and preventing build-up with a system designed for continuous inline processing across multiple applications.

Processes and Transfers Heat in Viscous Products
The Kelstream Scraped Surface Heat Exchanger from Gpi De Gouwe is engineered to efficiently manage the thermal processing of high-viscosity liquids and slurries. This unit features a vertical design with dual concentric heated surfaces, enhancing both cooling and heating efficiency inline. It serves a wide array of applications, including food, dairy, cosmetics, pharmaceuticals, and non-food sectors, accommodating products like mashed potatoes, salsa, mascarpone cheese, and chocolate bars.
Capable of processing up to 10,000 kg/h, the Kelstream operates continuously, ensuring seamless integration into existing production lines. The equipment’s scraping mechanism prevents product contamination and burn-on, maintaining product integrity even with solid components up to 25mm. Its double heat transfer surfaces allow for the complete separation of heating or cooling media from the product area, utilizing glycol, steam, or other media types efficiently.
Constructed with materials like Duplex and Hastelloy, this heat exchanger offers high corrosion resistance while maintaining compliance with industry standards. The Kelstream is PLC-controlled, facilitating automated, precise operations, and is compatible with CIP systems, ensuring thorough and efficient cleaning. Customization options, including various seals and connection types, are available to suit specific production requirements, supported by Gpi De Gouwe’s engineering team.
Benefits
- Enhances product quality by preserving integrity during heating and cooling processes.
- Increases operational efficiency with dual concentric surfaces for faster heat transfer.
- Minimizes contamination risks with continuous scraping action to prevent deposit build-up.
- Facilitates effortless integration and maintenance with CIP-compatible design.
- Customizable materials and seals ensure compatibility with a range of processing environments.
- Applications
- Food,Beverages,Sauces,Feed,Spreads,Fruit products,Ready-to-eat fillings,Confectionery,Non-food,Cosmetics,Condiments,Lotions,Creams,Dairy,Pharmaceuticals
- End products
- Fruit yoghurts,Mascara,Fruit pie filling,Body lotions,Pet food,Fruit preserves,Mashed potatoes,Gravies,Chocolate bars,Mascarpone cheese,Salsa,Lip balm,Tomato ketchup
- Steps before
- Emulsification,Homogenization,Heating,Ingredient Blending
- Steps after
- Cooling,Tempering,Crystallizing,Pasteurizing
- Input ingredients
- soups,sauces,fruit,tomato sauces,fruit filling,mashed potato,dressings,fruit puree,ready-to-eat fillings,salsa,jam,egg,hummus,marmalade,jelly,soup,fruit sauce,peanut butter,starch slurry,apple pulp,spreads,dairy,lotions,confectionary,milk concentrate,creams,fat cream,cheese sauce,wax,chocolate,yoghurt,toothpaste,caramel,mechanically deboned meat
- Output ingredients
- cooled soups,heated sauces,processed fruit,heated tomato sauces,crystallized fruit filling,tempered mashed potato,pasteurized sauces,processed cake filling,cooled mechanically deboned meat,heated dressings,processed fruit puree,prepared ready-to-eat fillings,heated salsa,jellied jam,crystallized egg,pasteurized hummus,preserved marmalade,set jelly,heated soup,cooled fruit sauce,processed peanut butter,prepared starch slurry,processed apple pulp,processed spreads,processed dairy,processed lotions,processed confectionary,heated milk concentrate,processed creams,processed fat cream,heated cheese sauce,processed wax,processed chocolate,processed yoghurt,processed toothpaste,processed caramel
- Market info
- GPI De Gouwe is known for manufacturing bespoke stainless steel tanks and processing equipment, specializing in the food, chemical, and pharmaceutical industries, with a reputation for delivering high-quality, custom-engineered solutions.
- Capacity
- 50-10000 kg/h
- Size/Length
- 1250 mm - 3200 mm
- Heated Surface
- 0.5 m² - 7.0 m²
- Footprint
- Compact
- Cooling/Heating Media
- Glycol,Ice water,Water,Liquid ammonia,Steam,Hot water
- Automation
- Fully integrated
- CIP Cleanable
- Yes,counterlow
- Maximum Component Size
- 25 mm
- Seal Type
- Lipseal or mechanical
- Working Mechanism
- Continually scraped surface
- Operation Type
- Inline Continuous
- Heat Transfer Surfaces
- Double concentric
- Scraping System
- Clockwise and anticlockwise
- CIP Capability
- Fully CIP cleanable
- Footprint
- Compact design
- Media Separation
- Fully separated product and media areas
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Viscosity
- High
- Heat sensitivity
- Yes
- Foaming tendency
- Low
- Abrasiveness
- No
- Scraped surface type
- Double concentric heated surfaces
- Discharge method
- Inline
- Control panel type
- PLC-controlled
- Patented cartridge seal type
- Lipseal or mechanical
- Connection types
- Various
- Material options
- Duplex,SMO254,Hastelloy
- Plastic options
- Silicone,Viton,HNBR,PTFE,EPDM
- Motor cover
- Available
- Cover scraper
- Available