Homogenizing turbine has adjustable speed with;  Maximum rpm value:  3600 rpm  Q3  Item 1.2  Clause 1.2.3 Rotating central blades agitator rpm values shall be; Minimum rpm value: 36 rpm or lower Maximum rpm value: 70 rpm or higher. External agitator rpm values shall be; Minimum rpm value: 17 rpm or lower Maximum rpm value: 95 rpm or higher. Working with mixtures of high viscosity products, semisolids in chemical industries  at high speeds of mixing is associated with a high load on the mechanical parts and  motors of the mixer as well as abrasion, vibration, mechanical tension. In some  mixtures of powders with a plasticizer, with increasing speed, the viscosity  increases, the mixing efficiency decreases, which negatively affects the parameters  of the final product. Equipment manufacturers do not recommend exceeding the  external agitator rotation speed of more than 90 rpm. While some products such as  low viscosity products, emulsions in pharmaceutical, cosmetics, skin care products  require increased power and rotation speed of the central mixer to ensure its efficient  operation and the creation of centrifugal force that ensures the transfer of the product  to the external agitator. Thus higher rotation speed of the central blade mixer is  recommended. In most cases, effective mass transfer is provided at a central mixer  rotation speed of 40 rpm or more.  We ask you to take the above mentioned into account and clarify whether a vacuum  mixer with the following parameters will be considered satisfying the terms of  reference:  However, rotation speeds affect the mixing time, according to  our reviews, changes have been made (~ ±5 rpm) in the speed  values that do not cause burning, decomposition, adverse  reactions and deterioration in the applications.  Please refer to Changes No:1 to the Tender Dossier, article 1.2.3.  CLARIFICATION No: 1 Publication Ref: EuropeAid/140639/IH/SUP/TR  Subject: Supply of Equipment for Advanced Prototype Station (APS) Sayfa  2  /  23