Weighing screw feeder

                                     Product name:  weighing screw feeder 

Weighing screw feeder, also known as screw scale, is a production metering equipment for continuous conveying, dynamic metering and controlling feeding of various powder and bulk materials. The dynamic metering error is better than ± 1.0%. Widely used in cement, chemical, metallurgy, ceramics, grain, transportation and other industries. 

 Model and meaning: 

   Features: 

 ◆ can be directly connected with the supporting equipment fixed, full use of space. ◆ with good sealing, no dust leakage, neither waste materials, and can create a good working environment. ◆ It has a small diameter, a high transmission speed and a large conveying capacity. ◆ if several kinds of powder and granule materials need to be mixed, the equipment can be used to transport materials, just kill two birds with one stone. ◆ gravity weighing and screw conveying mode to achieve dynamic continuous metering; ◆ compact structure, stable and reliable operation; ◆ manually insert various parameters, and the operation can be manually/automatically switched; ◆ with instrument self-diagnosis and computer networking functions; 

 Technical parameters: 

 ◆ static measurement error: ≤0.5%; ◆ dynamic cumulative error: ≤1%; ◆ control accuracy: better than 1%; ◆ instrument power supply: single-phase 220V ± 10%, 50HZ; ◆ operating environment: temperature: -10oc ~ +40oC humidity: 5% ~ 90% 

 Parameters and selection: 

 The selection of the screw feeder, first of all, on the premise that the material is suitable for the screw conveyor, the user according to the parameters provided below and the site process layout to determine the screw feeder model specifications, position state and length. 

    Note: 

 1. The conveying quantity is determined according to such factors as rotating speed of the helix and specific gravity of the material. 

 2. The motor power shall be determined according to the rotating speed of the screw, working position Angle, specific gravity of the material, conveying length and other factors. 

 3. Please specify the type and flow of conveying materials when ordering. 

3. Why Choose Our Screw Feeder?

Many conventional screw conveyors are designed mainly for transportation. Our Screw Feeder can be configured as an integrated feeding and metering solution, making it suitable for applications where stable flow and quantitative feeding are important.

1. More Than Simple Material Conveying

A conventional screw conveyor mainly transports material from one location to another.

Our weighing Screw Feeder can integrate:

Screw Conveying + Dynamic Weighing + Speed Measurement + Automatic Control

This allows the customer to monitor and control the actual feeding rate rather than relying only on volumetric feeding.

2. Stable Continuous Feeding

Variable-frequency speed regulation allows the screw speed to be adjusted according to process requirements.

The control system can compare the actual feeding rate with the target value and automatically adjust the motor speed to maintain stable material flow.

3. Compact and Space-Saving Design

The screw conveying structure integrates material transportation and feeding functions into one machine. Its compact configuration makes it suitable for production lines with limited installation space.

4. Better Dust Containment

The enclosed screw structure is particularly suitable for dusty powder materials. Compared with open conveying structures, it can help reduce material leakage and dust dispersion.

5. Easy Integration With Automation Systems

The weighing controller can communicate with PLC, DCS and other plant automation systems, supporting centralized production monitoring and automatic process control.

6. Customized According to Material

Different materials have different bulk densities, flowability, moisture content and abrasiveness.

We can customize the screw diameter, screw structure, motor power, feeding capacity, material-contact components and control system according to the customer's application.

Why Choose Zhitian?

Comparison Conventional Screw Conveyor Zhitian Screw Feeder

Material Conveying Yes Yes

Quantitative Feeding Limited Yes

Dynamic Weighing Usually No Available

Variable Speed Control Optional Available

Automatic Flow Control Limited Available

PLC/DCS Integration Depends on system Available

Dust-Enclosed Design Available Available

OEM/Customized Design Limited Supported

Industrial Applications General Cement, Mining, Chemical, Metallurgy, etc.

Company Strengths

   Founded: 2011

   Facility Area: 10,000 m²

   Annual Output Value: Over 20 million RMB

   Team Size: 45 employees

    Senior Engineers: 4

    Professional Engineers: 15

    Product Portfolio: 30+ series, 200+ models

    Core Product Categories: Metering equipment, conveying equipment, magnetic separation equipment, dust collection equipment

   Industries Served: Cement, building materials, chemicals, metallurgy, calcium carbide, lime kilns, ceramics, grain & oil, mining, coal – 10+ industries

  Technical Collaborations: Partnered with multiple renowned design institutes across China (including Beijing, Tianjin, Hefei, Qinhuangdao, and Sinopec Beijing Design Institute)

  Sales & Service Coverage: Nationwide, with full pre-sales consultation, on-site commissioning, and post-sales support

    Customization Capability: Available upon customer request

   Certifications & Compliance

   ISO 9000 Quality Management System Certified

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• Service & Support

• Pre-sales: Free material testing, engineering calculations, and site assessment

• Installation & Commissioning: On-site technical guidance until stable operation is achieved

• Training: Comprehensive operator and maintenance training

• Warranty: 12 months standard (extended options available)

• Spare Parts: Common wear parts in stock, emergency dispatch within 24 hours

• Remote Service: Optional GPRS module for remote diagnostics, tuning, and firmware updates

• Response Time: 2-hour response, 48-hour on-site arrival (major domestic regions)

For OEM and ODM projects, customers can provide material characteristics, feeding capacity, equipment dimensions, installation drawings and control requirements. Our engineering team can then develop a suitable technical solution.

6. Production, Quality Control and Supply Capability

Quality starts from raw material inspection and continues throughout manufacturing, assembly and final testing.

Production Process

The typical Screw Feeder production process includes:

Technical Design → Material Selection → Steel Plate Cutting → Component Processing → Screw Blade Fabrication → Welding → Machining → Surface Treatment → Component Assembly → Motor & Electrical Installation → Calibration → Factory Inspection → Packing → Shipment

7.Customer Cases and Applications

Q1. What is the minimum order quantity?

For standard equipment, the order quantity can be discussed according to the customer's actual project requirements. For customized OEM/ODM equipment, the minimum quantity depends on the design, material and production requirements.

Please contact us with your material type, capacity and equipment dimensions for a quotation.

Q2. Can you provide samples?

Yes. For equipment such as Screw Feeders, a complete physical sample is usually not necessary for every project. We can first provide technical drawings, specifications, configuration recommendations and other documents.

For special applications, sample testing can be discussed according to material characteristics and project requirements.

Q3. How long is the delivery time?

Delivery time depends on the equipment model, quantity, customization requirements and current production schedule.

Standard products can normally be arranged faster, while customized OEM/ODM projects require additional engineering and production time.

The company's published product information currently indicates a 3–5 day delivery time for one weighing screw feeder listing; customized projects should be confirmed separately before ordering.

Q4. How do you handle international transportation?

We can coordinate export packaging and transportation according to the customer's destination and project requirements.

The final transportation solution depends on equipment dimensions, shipment weight, destination and customer requirements.

A Screw Feeder is more than a material conveying machine. For modern industrial production, it can become an important part of the automated feeding, weighing and batching system.

By combining mechanical conveying, variable-speed control, dynamic weighing and intelligent automation, Zhitian provides customers with a flexible solution for continuous powder and fine-granular material feeding.