Description
I. Core Design Features
Volumetric Feeding Principle
The Solid Volume Pump Feeder uses a twin-screw or gear-type structure to form sealed feeding chambers during continuous rotation. This design enables stable volumetric feeding for powders, granules, plastic pellets, food ingredients, additives, and other solid materials.
With a feeding range of 2–6,700 L/h, the equipment is suitable for both small-batch dosing and high-capacity continuous production lines.
Gentle Conveying Structure
The low-shear twin-screw design reduces material compression during feeding, helping protect heat-sensitive or fragile materials from degradation. This makes the feeder suitable for food powders, chemical additives, pharmaceutical excipients, and lithium battery raw materials.
High-Precision Control
The system can work with SFT-II weight feedback technology, including hanging or platform-style load cells. Real-time monitoring and calibration help improve feeding stability and achieve accuracy up to ±0.5% under suitable operating conditions.
Modular Model Options
Four model configurations are available to meet different production capacities and material characteristics. Different screw diameters and operating speeds can be selected according to bulk density, flowability, required output, and line layout.
Easy Cleaning and Maintenance
The spherical hopper and horizontal mixer structure help reduce material retention. The tool-free disassembly design allows quick screw replacement and chamber cleaning, improving maintenance efficiency for production environments that require frequent material changes.
Industrial Material Compatibility
Material contact parts can be made from stainless steel or wear-resistant alloy according to process requirements. This allows the feeder to handle corrosive, abrasive, or high-temperature materials in chemical, food, pharmaceutical, and energy-related applications.
II. Typical Application Scenarios
The Solid Volume Pump Feeder is widely used in chemical and food processing lines for accurate feeding of plastic pellets, additives, sugar powder, milk powder, starch, and other bulk solid materials.
In pharmaceutical and energy industries, it can be used for controlled dosing of excipients, lithium battery cathode materials, and other high-value powder materials. The equipment can also be integrated into automated weighing, mixing, conveying, and batching systems.
As a powder handling equipment manufacturer and supplier, Doebritz supports customized feeding solutions for continuous production lines, batch blending systems, and automated dosing processes.
III. Technical Advantages
Smart Control Optimization
The system can integrate PID control algorithms and density compensation to maintain stable material flow when bulk density or feeding conditions fluctuate.
Automation Integration
The feeder supports PLC/DCS integration for remote start/stop, flow adjustment, process monitoring, and abnormal condition alerts. It is suitable for automated production lines requiring reliable and repeatable feeding performance.
Maintenance Efficiency
The open-frame structure and quick-disassembly design help operators complete screw replacement and chamber cleaning efficiently, reducing downtime during production changeovers.
For custom feeding capacity, material testing, or complete powder handling system integration, contact Doebritz to get technical support and a suitable equipment proposal.
