Dulmage mixer

The difference between the Saxton and the Dulmage mixers is that the slots in the Saxton mixer are machined in the helical rather than the circumferential direction. The advantage of this geometry over the Dulmage is that the Saxton mixer completely wipes the barrel surface. Therefore, there is less chance of stagnation and... 

The last column in Table 3 is the most important when it comes to distributive mixing effectiveness. The Dulmage, Saxton, CTM, TMR, and CRD all do very well in this category. The Saxton and CRD mixers combine good mixing with low cost. 

Slotted Flight Mixers. There are a great number of slotted flight mixers. Examples of slotted mixers are the Dulmage (Fig. 54) and the Saxton mixing sections (Fig. 55). 

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