Tuesday , September 26 2023

SOP For Design Qualification of Colloid Mill

SOP For Design Qualification of Colloid Mill

  • To design, engineer, and supply the Colloid Mill and to provide assurance that the machine is manufactured and it comply with the Scope of Supply.
  • To prove that each operation proceeds as per the design qualification and the tolerances prescribed there in the document, are the same at utmost transparency.
  • The scope of this qualification document is limited to the Design Qualification of Colloid Mill.  This qualification document is part of a validation activity for the Colloid Mill.
    • CLIENT
      • To Check and Approve the design qualification.
      • To design, engineer and provide the complete technical details of the equipment pertaining to its design qualification viz.
        • Machine overview,
        • General arrangement drawing,
        • Equipment orientation with layout,
        • Specifications of the sub-components/ bought out items, and their make, model & quantity, and backup records/ brochures,
        • Details of Utilities,
        • Material of construction of all components
      • To confirm the safe delivery of the equipment to the user site.
  •  To ensure that no un-authorized and or unrecorded design modifications shall take place. If at any point in time, any change is desired in the mutually agreed design, Change control procedure shall be followed and documented.
  • To ensure the proper installation and commissioning of the equipment.
  • The design of colloid Mills is based on years of experience in wet communition, homogenization, emulsification, dispersion, fluidization mixing etc.
  • The principle of Colloid Mill is based on the Stator /Rotor Principle. Stator is ring shaped with two different staggered special design tooth stages and conical shape tuning inside stator with special shape helical tooth system. Initial Rotor Stage is shaped impeller blades as preliminary drum, seizing the material, pre-breaking in and throwing it into the first station tooth stage. Product is fed to the operating area of a Rotor, having a speed of approximately 3000 R.P.M. by specially designed feed device. The product is processed by high shear, pressure and friction between the Stator and Rotor, besides the high shear, beating, collisions, bombarding and friction, the product is exposed to intense vibration which exert their force in it by means of pressing and realizing actions. At last stage of processing product is exposed to be basic oscillating frequency of 6000 Hz. The first upper oscillation of this stage lies with 18000 Hz utmost within the supersonic region, which explains high efficiency. The processed product continuously leaves the mill though the drain pope, if required, it can be recirculated.
  • Due to the slightly deviating tapering of the milling surfaces of stator and rotor, the annular gap becomes narrower towards the discharge section. The special design facilitates adjustment of the griding gap be an exterior screw even during operation.
  • Control / Electrical Panel
  • Operating Control Panel
    • The Non Flame proof control panel is made of MS covered with SS cover. It is located on the Machine.
    • Control panel contains.
      • START / STOP Switch
Description Specification
1.Equipment Description
Name Colloid Mill
Model CPM CM 3 WJ
Hooper Capacity 15 Liters
Particle Size Reduction 5-10 micron
Overall dimensions 1200 mm(H) X 410 mm(W) X 680 mm(L)
2.Main  Motor
Type TEFC, FLP, 3 Phase induction motor
Model Flange Mounted
Make Crompton Greaves
RPM 2850
Power Rating 3 HP /     / 415 V / 50Hz / 2.2 KW
Type SDS – 31403
Model Flange Mounted
Power Rating 3 HP / 415 V
Make PCG
START / STOP Switch 01 Nos. Each



Electrical connection To be provided


Hopper SS 316
Circulating pipe with Drain SS316
Lid(Hopper) SS316
Rotor SS316
Stator SS316
Sr. No. Description Drawing No.
1 General arrangement drawing of Colloid Mill  


  • Change in the agreed design shall be addressed through the well-defined Change control procedure.
cGMP current Good Manufacturing Practices
GEP Good Engineering practices
MS Mild steel
NFLP Non Flame Proof
SS Stainless Steel
KW Kilo Watt
DQ Design Qualification

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