Structured Manufacturing Data (2026)

Filter Drum

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Filter Drum used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Filter Drum is characterized by the integration of Drum Shell and Filter Media. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The rotating cylindrical component of an industrial rotary drum vacuum filter that provides the filtration surface.

Product Specifications

Technical details and manufacturing context for Filter Drum

Definition
The filter drum is the core rotating component of an industrial rotary drum vacuum filter, consisting of a cylindrical structure covered with filter media. As it rotates through the slurry tank, vacuum applied to the interior creates pressure differential that draws liquid through the filter media while solids accumulate on the drum surface, forming a filter cake that is subsequently discharged.
Working Principle
The filter drum rotates partially submerged in a slurry tank. Vacuum applied to the interior creates suction that draws liquid through the filter media covering the drum surface, while solids are retained on the exterior to form a filter cake. The rotation carries the cake through washing, drying, and discharge zones before returning to the slurry tank.
Common Materials
Stainless steel, Carbon steel, Special alloys
Technical Parameters
  • Diameter and length of the filter drum (mm) Customizable
Components / BOM
  • Drum Shell Part
    Provides structural support and houses internal vacuum chambers
    Material: Stainless steel
  • Filter Media Part
    Surface material that separates solids from liquids
    Material: Polypropylene, polyester, or metal mesh
  • Vacuum Chambers
    Internal compartments that maintain vacuum during filtration cycle
    Material: Stainless steel
  • Drainage Grid
    Supports filter media and allows filtrate flow to vacuum system
    Material: Stainless steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Filter Drum.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Vacuum up to 0.8 bar absolute, differential pressure up to 1.5 bar
flow rate: 0.5-200 m³/h per unit, depending on drum diameter and speed
drum speed: 0.1-3 rpm, adjustable based on cake formation
temperature: Typically -20°C to 150°C, depending on material and seal selection
slurry concentration: 1-40% solids by weight, optimal at 5-25%
Media Compatibility
✓ Polypropylene filter cloth for chemical resistance ✓ Stainless steel 316L mesh for abrasive slurries ✓ PTFE-coated media for sticky materials
Unsuitable: Highly viscous non-Newtonian fluids (>5000 cP) or slurries with large, sharp particles (>5mm)
Sizing Data Required
  • Required dry solids production rate (kg/h)
  • Slurry characteristics (particle size, density, viscosity)
  • Available floor space and drum diameter constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Screen blinding
Cause: Accumulation of fine particles or sticky materials on filter media, reducing effective filtration area and increasing differential pressure.
Structural fatigue cracking
Cause: Cyclic loading from rotational forces, vibration, or thermal expansion/contraction leading to stress concentration at weld joints or support structures.
Maintenance Indicators
  • Abnormally high differential pressure across drum (exceeding design limits)
  • Unusual grinding or scraping noises during rotation indicating mechanical interference
Engineering Tips
  • Implement regular backwashing or cleaning cycles optimized for specific process contaminants to prevent screen blinding
  • Establish vibration monitoring program with baseline measurements and trend analysis to detect early mechanical degradation

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ASTM A240/A240M - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications CE Marking - Directive 2014/68/EU for Pressure Equipment (PED)
Manufacturing Precision
  • Bore diameter: +/-0.05mm
  • Surface flatness: 0.15mm per meter
Quality Inspection
  • Dye Penetrant Test (PT) for surface defects
  • Dimensional verification using Coordinate Measuring Machine (CMM)

Factories Producing Filter Drum

Manufacturer profiles with relevant production capability in China

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are available for filter drums in industrial applications?

Filter drums are typically manufactured from stainless steel for corrosion resistance, carbon steel for cost-effective durability, or special alloys for specific chemical or temperature requirements in machinery and equipment manufacturing.

What are the key components of a filter drum assembly?

A complete filter drum assembly includes the drum shell, drainage grid, filter media (such as cloth or mesh), and vacuum chambers that work together to create the filtration surface in rotary drum vacuum filters.

How does a filter drum function in industrial filtration systems?

The filter drum rotates within a slurry tank, creating a vacuum through internal chambers that draws liquid through the filter media while retaining solids on the drum surface, which are then removed by a scraper or blow-off system.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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