Dewatering decanter for chemical and mineral processing
Maximize efficiency in liquid-solid separation, ensuring optimal clarification and dewatering in high-demand chemical and mineral processing operations.

Separates and Dewaters Liquids and Solids
The Dewatering Decanter crudMaster from GEA is a specialized centrifuge designed to streamline liquid-solid separation processes within chemical and mineral processing industries. This deep-pond, 3-phase decanter utilizes a solid-wall bowl featuring a cylindrical section for effective liquid clarification and a conical section for drying solids. Solids are propelled onto the inner bowl shell by centrifugal forces and transported by the scroll to the discharge, while liquid phases are managed through a centripetal pump and drain tubes.
Ideal for various industries including environmental services and food processing, it handles diverse product types—liquid, solid, and slurry—through continuous, high-speed operations. The crudMaster offers significant throughput advantages, supported by a GEA summationdrive, which ensures high differential speeds and increased torque for processing substantial solid loads efficiently.
Crafted with high-alloyed duplex and super duplex stainless steels, as well as Hastelloy C276, the equipment provides superior corrosion resistance. It complies with stringent ATEX standards, guaranteeing explosion protection with an inert gas atmosphere during operation. Additionally, its compatibility with CIP systems facilitates seamless cleaning and maintenance.
Engineers can benefit from customizable settings, including frequency-controlled motor adjustments for differential speeds, ensuring the unit adapts to specific operational demands. The crudMaster’s capabilities make it a valuable component for any high-demand processing line, offering robust performance and integration possibilities.
Benefits
- Enhances operational efficiency with continuous high-speed processing.
- Ensures durability in corrosive environments through high-alloy steel construction.
- Promotes safety with explosion-proof design meeting ATEX standards.
- Facilitates seamless cleaning with CIP compatibility, minimizing contamination risk.
- Adapts to processing needs via adjustable differential speeds, optimizing productivity.
- Applications
- Mineral processing,Solids dewatering,Chemical products,Liquid separation
- End products
- Steps before
- Purification,Emulsification,Grinding
- Steps after
- Sterilization,Packing
- Input ingredients
- chemical processing materials,mineral processing materials,liquid phases,solids
- Output ingredients
- clear clarification,separated liquids,dewatered solids,heavy liquid phase,light liquid phase
- Market info
- GEA is known for its expertise in engineering innovative and sustainable equipment and solutions, focusing on sectors such as food, beverages, pharmaceuticals, and energy, with a reputation for quality, efficiency, and advanced technological applications in industrial processing.
- Capacity
- Customizable for chemical and mineral processing
- Material
- High-alloyed duplex steels,super duplex steels,Hastelloy C276
- Temperature Range
- Up to 130 °C
- Dewatering Type
- 3-phase decanter centrifuge
- Phase Discharge Method
- Centripetal pump and drain tubes
- Drive System
- GEA summationdrive with variable speed motor
- Differential Speed Adaptation
- Automatic with frequency-controlled motor
- Explosion Protection
- Complies with European ATEX standard
- Cleaning Compatibility
- CIP-compatible
- Energy Efficiency
- High efficiency with energy feed-in
- Pressure Maintenance
- Maintained with inert gas blanketing
- Working Mechanism
- 3-phase decanter centrifuge
- Integrated Steps
- Clarification,liquid separation,and solids dewatering
- CIP Principles
- CIP compatibility assured
- Batch vs Continuous Operation
- Continuous
- Automation Level
- Automatic adaptation of differential speed
- Cleaning Method
- CIP
- Energy Efficiency
- High efficiency of the drive
- Changeover Time
- Good accessibility to all drive parts
- Abrasion resistance
- Yes
- Biological compatibility
- No
- Cleanability
- CIP compatible
- Corrosive resistance (e.g. acids)
- High-alloyed duplex steels,super duplex steels,Hastelloy C276
- Density/particle size
- Not specified
- ATEX certification
- Yes
- Tank shape
- Cylindrical and conical
- Discharge method
- Centripetal pump and drain tubes
- Material
- High-alloyed duplex steels,super duplex steels,Hastelloy C276
- Bowl configuration
- Solid-wall with cylindrical and conical sections
- Material
- High-alloyed duplex steels,super duplex steels,Hastelloy C276
- Gaskets
- NBR,FKM,FFKM,EPDM
- Explosion Protection
- ATEX / Gas-tight
- Control Capability
- GEA summationdrive,Frequency-controlled motor
- Temperature Range
- Available for temperatures up to 130 °C
- Inert Gas Blanketing
- Yes,with inert gas displacement