A loss-in-weight feeder is an automatic weighing device that achieves high-precision continuous batching through static weighing. It reliably, accurately, and stably feeds powdery, granular, and flake-like dry bulk materials, reducing material loss and waste while improving the consistency of the mixture.

Principle of Weight Loss

The loss-in-weight scale weighs by using the measuring hopper and the entire feeding mechanism as the weighing body. As materials exit the loss-in-weight scale, the control system rapidly and frequently collects the weight signals of the weighing body to obtain the flow rate per unit time. The material reduced in the internal weighing hopper is then filtered and optimized by TRUSTAR, resulting in the actual flow rate of the loss-in-weight scale. Simultaneously, the control system compares this feeding speed with the pre-set target speed and calculates the comparison result. This result is fed back to the feeding mechanism of the loss-in-weight scale, automatically adjusting the feeding speed to form a closed-loop control. This ensures that the actual flow rate approaches the target flow rate indefinitely, meeting the control requirements.

Work Process

a Firstly, the customer's raw material supply warehouse adds material to the hopper of the weight loss scale. The system automatically stops the feeding process once it detects that the material has been added to the set position.

b After feeding is complete, the loss-in-weight scale begins to operate. During operation, the weighing sensor collects real-time flow data and sends it to the weighing controller for processing. This data is used for both screen display and data communication, and also controls the motor's speed to achieve real-time flow adjustment.

c During the operation of the loss-in-weight scale, the material in the scale's hopper gradually decreases. When the material in the hopper of the loss-in-weight scale drops to the set feeding range, the Siemens output module controls the feeding device to start feeding. At the same time, the loss-in-weight scale operates in volume mode to ensure a stable and accurate flow.

Through the reciprocating movement of the above stages, the weightless scale products can continuously and accurately feed and discharge materials.

Weighing platform structure of the scale, equipped with Mettler Toledo high-precision sensors, capable of perfectly handling various materials such as granular materials, powdered materials, and short glass fibers through the configuration of single-blade spiral, double-blade spiral, self-cleaning double spiral, and spring spiral.

Enhance quality, reduce costs, easy operation, precise ingredients, flexible control, easy cleaning

Advantages:

Trustworthy Online Ingredients

The scale screw loss weigher is suitable for continuous feeding of various granular materials, powdered materials, and short glass fiber materials during the batching process.

Reasonable structural design

By matching configurations such as different material types, material storage sizes, bridge breakage mechanisms, and screw models, the product is applied in industries like rubber and plastic, chemicals, steel, food, and environmental protection.

显着 Product Advantages

Products are renowned in the industry for their ultra-high ingredient accuracy, robust material processing capabilities, exquisite production techniques, and advanced control technology.

Reliable design

Using this equipment not only enhances the accuracy, stability, and reliability of material supply but also significantly boosts the factory's operational efficiency, alleviates the workload for operators, and generates more economic and social benefits for the enterprise.

Flexible control system

The weight loss scale control system allows for manual and automatic control of feeding and replenishment processes, and can switch between local and remote control. In remote control mode, it can receive and feedback data and status to the DCS central control room.