INDUSTRY COMPONENT

Conical Disc

A conical disc is a precision-engineered component in disc stack centrifuges that enables high-speed separation of immiscible liquids or solids from liquids through centrifugal force.

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Component Specifications

Definition
A conical disc is a critical component within disc stack centrifuges and separators, characterized by its conical shape with precisely angled surfaces. These discs are stacked in series within the centrifuge bowl, creating multiple separation channels that dramatically increase the effective settling area. The conical geometry creates a thin-film separation zone where heavier phases migrate outward while lighter phases move inward, enabling continuous separation of liquids with different densities or removal of solid particles from liquid streams.
Working Principle
The conical disc operates on centrifugal sedimentation principles. When the disc stack rotates at high speeds (typically 5,000-15,000 RPM), the conical shape creates inclined settling surfaces. The feed enters through the center and distributes between discs. Under centrifugal force, denser phases (solids or heavier liquids) migrate outward along the disc surfaces toward the bowl periphery, while lighter phases flow inward toward the center outlet. The conical angle (typically 35-45°) optimizes particle settling distance and separation efficiency.
Materials
Stainless steel (AISI 316L, 1.4404), duplex stainless steel (1.4462), titanium (Grade 2, 3.7035), or specialized alloys for corrosive applications. Surface finish: Ra ≤ 0.8 μm. Hardness: 150-250 HB. Corrosion resistance per ASTM A240.
Technical Parameters
  • G-Force 5,000-15,000 × g
  • Diameter 150-800 mm
  • RPM Range 5,000-15,000
  • Thickness 0.8-2.0 mm
  • Cone Angle 35-45°
  • Pressure Rating Up to 10 bar
  • Operating Temperature -20°C to +150°C
  • Surface Area per Disc 0.1-0.8 m²
Standards
ISO 1940-1, DIN 11850, ASME BPE, 3-A Sanitary Standards

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Conical Disc.

conical disc disc stack centrifuge separator disc centrifugal separation sedimentation disc clarifier component separation technology Conical Disc in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Disc Stack

A stack of conical discs within a separation bowl that provides the surface area for centrifugal separation of immiscible liquids or solids from liquids.

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Engineering Analysis

Risks & Mitigation
  • Disc deformation under high G-forces
  • Corrosion in aggressive media
  • Fouling and clogging
  • Imbalance causing vibration
  • Fatigue failure from cyclic loading
FMEA Triads
Trigger: Material fatigue from cyclic stress
Failure: Crack propagation leading to disc rupture
Mitigation: Regular NDT inspection, stress relief annealing, proper material selection for fatigue resistance
Trigger: Corrosive media attack
Failure: Thinning and perforation of disc material
Mitigation: Corrosion-resistant alloys, protective coatings, regular thickness measurement
Trigger: Solid particle accumulation
Failure: Reduced separation efficiency and increased pressure drop
Mitigation: Regular cleaning cycles, pre-filtration of feed, optimized disc spacing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm diameter, ±0.5° cone angle, surface flatness within 0.1 mm/m
Test Method
Dimensional verification per ISO 2768-m, material certification per EN 10204 3.1, balance testing per ISO 1940-1 G2.5, pressure testing per ASME BPVC

Buyer Feedback

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"The technical documentation for this Conical Disc is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Conical Disc so far."

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Frequently Asked Questions

What is the purpose of the conical shape in disc stack centrifuges?

The conical shape creates inclined settling surfaces that reduce particle settling distance by up to 90% compared to cylindrical designs. This dramatically increases separation efficiency while maintaining compact equipment dimensions.

How do conical discs handle different liquid densities?

Conical discs create thin-film separation zones where centrifugal force causes denser liquids to migrate outward along disc surfaces while lighter liquids flow inward. The precise cone angle optimizes this density-based separation.

What maintenance is required for conical discs?

Regular inspection for wear, corrosion, and deformation; cleaning to prevent fouling; and periodic replacement based on operating hours or performance degradation. Proper handling is essential to prevent surface damage.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Cone Wall Conical Section