DHZ420 Dairy Milk Skimming Clarification Disc Oil Separator Hermetic Design CIP

Product Specification

DHZ420 Dairy Milk Skimming and Clarification Disc Oil Separator

The DHZ420 hermetic disc separator is specifically engineered for the dairy processing industry, providing both milk skimming (cream separation) and clarification functions in one hygienic, CIP-compatible unit. The hermetic air-tight design prevents product oxidation and foaming, ensuring the highest quality skim milk and cream for further processing into dairy products.

Working Principle in Dairy Processing

Pre-warmed raw milk enters the hermetic bowl through a sealed inlet and flows into the disc stack. Under high centrifugal force, the heavier skim milk migrates outward while the lighter cream layer forms concentrically inward. The hermetic design eliminates the air-liquid interface, dramatically reducing shear forces on delicate fat globules. Skim milk exits through the outer centripetal pump for standardization or further processing, while cream exits through the inner centripetal pump at controlled fat content (adjustable from 35-45%). Sludge (somatic cells, udder tissue residues, dust) accumulates in the solids holding space and is automatically discharged through partial ejection cycles.

Key Features

• Hermetic air-tight design prevents oxidation and foaming, preserving milk quality
• Dual function: skimming and clarification in a single machine
• All product contact parts in food-grade SUS304 stainless steel with 3A sanitary compliance
• Fully CIP (Clean-in-Place) compatible with integrated spray balls and sanitary connections
• Automatic partial discharge system removes sludge without interrupting production
• PLC control with recipe management for different milk types and fat content targets
• Low-shear inlet design protects milk fat globules from mechanical damage
• Temperature-resistant design handles standard milk pasteurization temperatures (up to 95°C)

Technical Specifications

Benefits for Dairy Processors

• Produces cream with precisely controlled fat content for butter, cream, and cheese production
• Hermetic design maintains superior organoleptic properties of milk and cream
• Combined skimming and clarification eliminates need for separate clarifying centrifuge
• Automatic sludge discharge maximizes production uptime during milk reception peaks
• CIP compatibility reduces cleaning time and chemical consumption

Company Introduction

Huading Separator, established in 1954, has been at the forefront of centrifugal separation technology for over 60 years. As China's leading manufacturer, our hermetic dairy separators are trusted by milk processors worldwide for their hygienic design, reliable performance, and compliance with international food safety standards including 3A Sanitary Standards and EU Food Contact regulations.

FAQ

Q: What fat content can be achieved for cream?
A: Cream fat content is adjustable from 35% to 45% by adjusting the cream centripetal pump outlet pressure. Higher fat content creams (up to 55%) can be achieved with the cream concentrating configuration.

Q: Is the separator compatible with acid whey processing?
A: Yes, the DHZ420 can process whey for fine cheese fines recovery and whey cream separation. Duplex stainless steel option is recommended for acid whey applications.

Q: How long does a CIP cycle take?
A: A complete CIP cycle (caustic wash, rinse, acid wash, final rinse) typically takes 60-90 minutes depending on process conditions.

Q: What spare parts are needed for routine maintenance?
A: We provide a recommended spare parts package including bowl seals, O-rings, disc stack gaskets, and operating water valve rebuild kits.