Automated Powder Dispensing and Blending System
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This page explains how Screw Feeder is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A mechanical device that uses a rotating screw to transport and meter bulk materials from a storage hopper into a process or system.
Technical details and manufacturing context for Screw Feeder
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Screw Diameter | 100–500 mm | Determines throughput and particle size compatibility. |
| Throughput Capacity | 1–100 m³/h | Select based on required process feed rate. |
| Screw Speed | 10–120 rpm | Adjustable for metering accuracy. |
| Feed Accuracy | ±0.5–±2 % | Critical for batching and blending processes. |
| Motor Power | 1.5–15 kW | Depends on screw length and material properties. |
| Supply Voltage | 380–480 V AC | Three-phase; other voltages on request.IEC 60038 |
| Operating Temperature | -20–80 °C | Material temperature range; higher with cooling. |
| Ingress Protection | IP54–IP65 | Higher rating for dusty or wet environments.IEC 60529 |
| Material of Construction | 304/316L | 316L for corrosive or food-grade applications.ASTM A240 |
| Weight | 200–2000 kg | Varies with size and configuration. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Screw Feeder.
This component is essential for the following industrial systems and equipment:
| 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 |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
Screw Feeders are designed for powders, granules, flakes, and other bulk solids. The construction material (e.g., carbon steel or stainless steel) should be selected based on the material's abrasiveness, corrosiveness, and food-grade requirements.
Feed rate is primarily controlled by adjusting the rotational speed of the screw via a variable-speed drive. The screw design and housing geometry also influence the volumetric displacement, so the combination determines the achievable feed rate.
Screw Feeders are used in processes such as mixing, blending, packaging, and chemical reactors to provide a steady, regulated flow of material from a hopper or silo to downstream equipment.
Regular inspection of the screw and trough for wear, checking the drive motor and gearbox for proper operation, and ensuring the hopper does not bridge or clog are typical maintenance tasks. Unusual noise or reduced throughput may indicate wear or blockage.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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