Contherm Max

Contherm® Max is a double-wall scraped surface heat exchanger designed to provide high-capacity production of low to medium-viscosity and crystalline products and those with large particles. Thanks to Alfa Laval’s advanced double-wall design, the Contherm® Max double-wall scraped surface helps boost yield while simultaneously ensuring efficient thermal performance and low total costs.

Contherm®Max double-wall heat exchanger front

  • Add capacity: double-wall heat exchanger unit with a large surface area offers triple the production capacity of conventional single-wall designs.
  • Preserve quality: Gentle treatment is ideal for shear-sensitive products with particulates up to 25 mm in size.
  • Increase efficiency: Single drive motor reduces energy consumption by more than 30%.
  • Easy service: Low rotational speeds reduce lifetime maintenance demands and service costs.
  • Save space: The vertical design offers a compact footprint with a fully assembled unit for a plug-and-play set-up.

One double-wall Contherm® Max provides robust, efficient thermal performance equal to  three traditional, single-wall scraped surface heat exchangers. With low rotational speeds and reduced internal pressure drop, Contherm® Max double-wall scraped surface heat exchanger units also provide the gentlest possible treatment for the best guarantee of preserving product quality. All of this is on top of significant energy and maintenance savings that help ensure the lowest possible total cost of ownership. 


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Even more with Contherm® Max double-wall heat exchanger

Discover how you can increase your capacity with the new Contherm® Max heat exchanger and why this double-wall heat exchanger solution makes our family of products truly unique.

The double-wall scraped-surface heat exchanger principle 

In a Contherm® Max double-wall scraped surface heat exchanger, the product enters through a bottom tangential entry port and exits at the top of the unit. Steam or liquid heating or cooling media flow from top to bottom in a counter-current path at high velocity, providing optimal heat transfer to the product. 

A highly engineered rotating scraping assembly fitted with blades continuously removes fouling material from inner and outer walls. The speed of the rotating scraping assembly can be adjusted according to the specific product and application to ensure the most effective scraping and best product quality 

At the end of production, the product can be drained or removed by water to ensure minimal product loss. In addition, the Contherm® Max double-wall scraped surface heat exchanger can be cleaned using a simple Cleaning-in-Place (CIP) procedure according to Alfa Laval’s recommended guidelines.


Key products



Contherm Service Offering

Partnering with Alfa Laval for the service of your Contherm scraped surface heat exchanger will ensure your heat exchanger is always working at top performance.

  • Easy commission and installation
  • Safe start-up
  • No unexpected downtime
  • Reduce total costs of ownership
  • Upgrade your scraped surface heat exchanger to achieve more

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More than you thought possible

For continuous processing of demanding products, the complete Contherm® range provides endless possibilities. In fact, today Alfa Laval is the only supplier on the market who can offer robust heat transfer with both single and double-wall scraped surface heat exchanger solutions.

We understand that no two customers’ needs are identical. That’s why Contherm® heat exchangers are always fully tailored to fit the intended application. The end result is more: more capacity, more efficiency and – most importantly – more profitability. When it comes to your business, who doesn’t want more?

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Contherm product range

Viscous product

Viscous products

The complete Contherm® range of scraped surface heat exchangers provides solutions for continuous processing of any type of challenging viscous liquids. Whether dealing with low or medium-viscosity products or those with extremely high viscosities, there is a member of the Contherm® family to fit your needs. 

Example applications include: ketchup, mayonnaise, hummus, chocolate spreads, fruit pie fillings, gravies and sauces, whipped/aerated products, peanut butter, pizza sauces, puddings, salad dressings, salsa and taco fillings, sandwich spreads, bread dough, mechanically deboned meat (MDM), gelatine, omelettes, baby food, nougat, batter skin lotions, shampoos, liquorice, and more.

Heat-sensitive products

Scraped-surface heat exchangers are an ideal solution for heat-sensitive products that tend to cause fouling in other types of heat exchangers. Alfa Laval can support customers with any challenging heat-sensitive product need with the comprehensive range that we offer. 

Examples include: liquid and scrambled egg products, meat emulsions, fruit preparations and fruit purées, cream cheeses, whey proteins, and more. 

Heat-sensitive products

Slices of bread and butter

Crystallizing products and applications with phase change challenges

Preserving taste, colour and/or texture is a challenge for manufacturers of products that can undergo crystallization. We work with your business to find the optimal Contherm® solution to fit your production. 

Examples include coffee/tea extracts, icings and frostings, sugar concentrates, margarine, shortening, spreads, gelatine broth, lard, fondant, biscuit creams, solvents, fatty acids, petroleum jelly, beer and wine, and more. 

Products with particulate matter

Contherm® heat exchangers are always built to the specifications of the target duty. So whether you are processing products with large, small or mixed particles, or switching between non-particulate and particulate products, your Contherm® can be adapted to meet the demands. 

Examples include meat, chicken pieces, fish meal, pet food, jams and preserves, yoghurt with fruits, various fruit preparations, rice pudding, vegetable pieces, and more. 

Products with particulate matter - nachos and salsa

Sticky gelatinous product

Sticky products

Many heat exchangers encounter limits when handling sticky process fluids. For Contherm®, however, it’s never a problem. The complete Contherm® family of scraped surface heat exchangers can support a range of mildly to extremely sticky products, from foods to beauty products. 

Examples include: caramel and other confections, cheese sauces, lecithin, processed cheese, confectionery, yeast extracts, gums, gelatine, mascara, toothpaste, starch solutions, and more. 

Contherm Dark Heat Transfer

Contherm®:More than you thought possible

Increased capacity, efficiency and profitability