How to Calculate Screw Conveyor Capacity

Screw Conveyor Capacity Formula:

\[ Capacity = 60 \times \rho \times A \times v \]

Conveyor Capacity:

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1. What is Screw Conveyor Capacity?

Screw conveyor capacity refers to the maximum amount of material that can be transported by a screw conveyor per unit time. It is typically measured in tons per hour and depends on material properties, conveyor design, and operating conditions.

2. How Does the Calculator Work?

The calculator uses the screw conveyor capacity formula:

\[ Capacity = 60 \times \rho \times A \times v \]

Where:

\( \rho \) — Material density (kg/m³)
\( A \) — Cross-sectional area of material flow (m²)
\( v \) — Conveyor velocity (m/s)
60 — Conversion factor from seconds to minutes

Explanation: The formula calculates the mass flow rate by multiplying density, cross-sectional area, and velocity, then converts the result to tons per hour.

3. Importance of Capacity Calculation

Details: Accurate capacity calculation is crucial for proper conveyor sizing, ensuring efficient material handling, preventing overloading, and optimizing system performance in industrial applications.

4. Using the Calculator

Tips: Enter material density in kg/m³, cross-sectional area in m², and conveyor velocity in m/s. All values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect screw conveyor capacity?
A: Key factors include screw diameter, pitch, rotational speed, material characteristics, and loading efficiency.

Q2: How is cross-sectional area determined?
A: Cross-sectional area depends on screw diameter and the fill percentage, typically ranging from 15% to 45% of the total screw cross-section.

Q3: What are typical conveyor velocities?
A: Screw conveyor velocities typically range from 0.1 to 1.0 m/s, depending on material properties and application requirements.

Q4: How does material density affect capacity?
A: Higher density materials result in higher capacity for the same conveyor size, but may require stronger construction and more power.

Q5: Are there limitations to this calculation?
A: This basic calculation assumes ideal conditions and may need adjustment for material flow characteristics, inclination angles, and other practical factors.