Industry-Verified Manufacturing Data (2026)

Screw Feeder

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Screw Feeder 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 Screw Feeder is characterized by the integration of Screw (Auger) and Trough / Housing. In industrial production environments, manufacturers listed on CNFX commonly emphasize Carbon Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A mechanical device that uses a rotating screw to transport and meter bulk materials from a storage hopper into a process or system.

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Product Specifications

Technical details and manufacturing context for Screw Feeder

Definition
A Screw Feeder is a precision component within an Industrial System designed to provide controlled, consistent, and volumetric or gravimetric feeding of powders, granules, flakes, or other bulk solids. It ensures a steady, regulated flow of material from a supply source (like a hopper) to downstream processes such as mixing, blending, packaging, or chemical reactors, playing a critical role in maintaining process stability and product quality.
Working Principle
The Screw Feeder operates by rotating a helical screw (auger) within a stationary trough or tube. As the screw turns, material is captured in the spaces between the screw flights and is pushed axially along the trough. The feed rate is controlled by adjusting the rotational speed of the screw via a drive motor and gearbox. The design of the screw (pitch, diameter, flight type) and the geometry of the housing determine the volumetric displacement and flow characteristics of the material.
Common Materials
Carbon Steel, Stainless Steel
Technical Parameters
  • Feed Rate or Capacity - the mass or volume of material delivered per unit time. (kg/h or m³/h) Standard Spec
Components / BOM
  • Screw (Auger)
    The rotating helical element that conveys and meters the material.
    Material: Typically carbon or stainless steel, sometimes with hardened or coated surfaces.
  • Trough / Housing
    The stationary enclosure that contains the screw and guides the material flow.
    Material: Typically carbon or stainless steel plate.
  • Drive Unit
    Consists of a motor and gearbox (or variable frequency drive) to provide controlled rotational power to the screw.
    Material: Motor housing: cast iron or aluminum; Gears: hardened steel.
  • Inlet Hopper
    The receiving chamber that holds a supply of bulk material above the screw intake.
    Material: Carbon or stainless steel plate, sometimes with agitators or vibrators to prevent bridging.
Engineering Reasoning
0.1-10 bar differential pressure, 0.5-100 m³/h volumetric flow rate
Screw torque exceeds 150 N·m yield strength of AISI 304 stainless steel screw shaft, or material bridging occurs at hopper angles <60° from horizontal
Design Rationale: Torsional shear failure of screw shaft due to material compaction exceeding Mohr-Coulomb failure envelope, or arching/bridging of cohesive powders when wall friction angle exceeds hopper angle
Risk Mitigation (FMEA)
Trigger Abrasive material particle hardness >6.5 Mohs scale (e.g. silica sand at 7.0 Mohs)
Mode: Screw flight wear rate exceeds 0.5 mm/1000 operating hours, causing volumetric efficiency drop below 85%
Strategy: Hardened tool steel flights with 58-62 HRC surface hardness, or tungsten carbide wear plates at 2400 HV hardness
Trigger Material moisture content >5% w/w combined with hygroscopic properties (e.g. deliquescent salts)
Mode: Material adhesion to screw surfaces forming >10 mm buildup, increasing drive torque by 300%
Strategy: Screw surface finish Ra <0.8 μm with PTFE coating having <18° contact angle, or heated jacket maintaining >15°C above material dew point

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Screw Feeder.

Auger Feeder Volumetric Feeder industrial screw feeder for bulk materials stainless steel screw feeder machine carbon steel auger feeder equipment screw conveyor feeder with hopper metering screw feeder for manufacturing

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Automated Powder Dispensing and Blending System
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar (typical), up to 3 bar with pressure-rated designs
flow rate: 0.1 to 100 m³/h depending on screw diameter and speed
temperature: -20°C to 150°C (standard), up to 400°C with special materials
slurry concentration: Up to 70% solids by weight for standard designs, specialized units for higher concentrations
Media Compatibility
✓ Dry granular materials (plastic pellets, grains, powders) ✓ Free-flowing powders (cement, flour, chemicals) ✓ Small particulate solids (sand, seeds, mineral ores)
Unsuitable: Highly viscous or sticky materials (molasses, wet clay, adhesives) that can cause bridging or screw binding
Sizing Data Required
  • Required volumetric flow rate (m³/h or kg/h)
  • Material bulk density (kg/m³)
  • Material flow characteristics (angle of repose, abrasiveness, particle size distribution)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Screw flight wear/erosion
Cause: Abrasive material flow causing gradual material loss on screw surfaces, leading to reduced conveying capacity and efficiency.
Bearing failure
Cause: Contamination ingress (dust, moisture), inadequate lubrication, or misalignment causing premature bearing wear, overheating, and eventual seizure.
Maintenance Indicators
  • Unusual grinding or scraping noises during operation indicating metal-to-metal contact
  • Visible material leakage around seals or housing joints suggesting seal degradation
Engineering Tips
  • Implement regular lubrication schedule with appropriate grease type and quantity for bearings and gearbox
  • Install condition monitoring (vibration analysis, thermal imaging) to detect early degradation before catastrophic failure

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ANSI/ASME B5.54-2005 - Methods for performance evaluation of computer numerically controlled machining centers DIN 2093 - Disc springs - Calculation
Manufacturing Precision
  • Screw pitch: +/-0.01mm
  • Feeder alignment: 0.05mm over 300mm length
Quality Inspection
  • Dimensional verification with CMM (Coordinate Measuring Machine)
  • Material composition verification via X-ray fluorescence (XRF) analysis

Factories Producing Screw Feeder

Verified manufacturers with capability to produce this product in China

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✓ 92% Supplier Capability Match Found

T Technical Director from United States Jan 14, 2026
★★★★★
"Great transparency on the Screw Feeder components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Jan 11, 2026
★★★★☆
"The Screw Feeder we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Australia Jan 08, 2026
★★★★★
"Found 36+ suppliers for Screw Feeder on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

9 sourcing managers are analyzing this specification now. Last inquiry for Screw Feeder from Vietnam (1h ago).

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Coating Pan

A rotating vessel used to apply uniform coating layers to pharmaceutical tablets through controlled spraying and drying processes.

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Spray System

A precision fluid delivery subsystem that atomizes and applies coating solutions onto pharmaceutical tablets within an automated coating system.

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Frequently Asked Questions

What materials are available for screw feeder construction?

Our screw feeders are constructed from either carbon steel or stainless steel, offering durability and corrosion resistance suitable for various industrial applications.

What are the main components of a screw feeder system?

Key components include a drive unit for power, an inlet hopper for material storage, a rotating screw (auger) for transportation, and a trough/housing that contains and guides the material flow.

How does a screw feeder handle different bulk materials?

The rotating screw design meters and transports materials consistently from the hopper into processes, with adjustable speed controls to manage flow rates for various material densities and characteristics.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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