CHEMICAL EXTRUDER ATTACHMENT

Product Overview: 

• Designed to resist wear and extend the life of the screw and barrel when working with tough and abrasive materials
• More consistent and reliable extrusion as a result of changes to the inside of the barrel which helps to improve the flow of tougher, more abrasive formulations
• Compatible with all Caleva Multi Lab Machines. Seamlessly fits both the Multi Lab Classic (MLC) and Multi Lab Scientific (MLS) without the need for additional modifications
• The new chemical extrusion attachment is also compatible with the original Caleva Multi Lab (CML).
• Provided with a 1 x 4 mm die as standard (other die options are available).

Key Benefits of the Chemical Extruder

The Caleva Multi Lab Scientific and Multi Lab Classic are increasingly being used for formulation development within the chemical industry, for applications including battery development, catalyst, carbon capture, ceramics, and more. These types of materials tend to be more abrasive and tougher to process which can lead to increased wear of the consumable parts. That's why our team of engineers have developed a chemical extruder solution to meet the demands of these more abrasive materials.

Using the new chemical extruder you can benefit from: 

• Increased wear resistance – The screw is made from 17-4PH stainless steel for greater strength and hardness, reducing wear when processing abrasive materials. This leads to a longer operational lifespan.
• More efficient material transfer of chemicals – Twin flight pressing cams create separate transportation and processing zones, improving extrusion efficiency when working with tough materials.
• Improved material flow – Grooved barrel interior increases friction, to better facilitate material transfer and process harder-to-extrude materials more smoothly.
• Easy identification – The dark blue screw support bearing is easy to distinguish from our standard screw, simplifying identification and replacement requests. 
• Engineered specifically for chemical extrusion – Designed for a more demanding extrusion process.
  

Additional Equipment for Chemical Extrusion 

Other equipment designed for laboratory chemical extrusion includes dies with various hole shapes, diameters and depths, as well as a sigma mixing bowl and blades. These are available for all Caleva Multi Lab machines.

Sigma Blades 

For high viscosity materials. The sigma blades and bowl are designed for use if your material is very viscous and difficult to work with during the mixing phase. 

Dies

For chemical extrusion it can be necessary to experiment with different dies to establish the most suitable one for your formulation. Dies with different depths can help to increase the density of your extrudate, while shaped die holes such as trilobe and quadrilobe will increase the surface area of your extrudate which can be beneficial in catalyst applications. The video below demonstrates 6 different dies being used to extrude the same formulation. Experimenting with different dies can help to reduce or mitigate issues you might encounter with your extrudate, such as shark skinning or surface roughness.