Rotor Weigh Feeder for Powder Materials
The Rotor Weigh Feeder is a specialized weighing and feeding system designed for continuous weighing, batch measurement, and accurate proportioning of powder materials. It is particularly suitable for free-flowing powders such as cement, mineral powder, aluminum ash, fly ash, pulverized coal, and other fine materials.
- Zhitian
- Shandong
- 10-15days
- 100PCS
- Information
Users who purchase Rotor Weigh Feeder do not simply need a "weighing device," but hope to solve problems such as unstable powder material feeding, insufficient metering accuracy, dust leakage, equipment wear, and difficulties in automatic control, so as to achieve stable, continuous, and accurate powder metering and conveying.
Our Solution
We tackle the four root causes head-on.
First, The weighing system employs a ring-shaped balance structure, consisting of a reducer, rotor, and disc. The scale body is supported by a weighing bracket, and both the inlet and outlet are connected by flexible connections. The powder material flows uniformly within a semi-circle at the inlet and outlet. Weighing sensors accurately detect the material within this semi-circle.
Second, To ensure precise feeding, an advanced feedforward adjustment system, the ZTJL-3105 control system, is employed. Based on the set feed rate, the ZTJL-3105 control system continuously adjusts the speed of the powder balancer, achieving highly accurate, stable, and continuous feeding. This is the only rotor scale on the market with dual control functions, prioritizing stable feeding of the powder balancer while simultaneously controlling the rotor scale's rotational speed to improve metering accuracy.
Third, The flexible sealing structure avoids jetting and solves problems such as volume reduction due to wear. The balance-type weighing structure ensures high metering accuracy. The ZTJL-3105 feedforward control system provides dual control of both the powder balancer and rotor scale speed, improving metering accuracy. The company's independently developed powder balancer ensures stable feeding.
Fourth, Simple in construction, with tight bearing sealing, low failure rate, and easy maintenance. It adopts a high-precision digital weighing module and digital transmission technology, featuring simple wiring, no adjustment components, high resolution, no signal attenuation, and strong anti-interference. Control utilizes touch screen display technology or a full Chinese LCD display, with bilingual (Chinese and English) graphical display and a wizard-driven operation mode, making operation simple and requiring no memorization. It can connect to RS-485 communication, Ethernet, DCS, PLC, and other interfaces. Employing GPRS wireless data transmission, it supports SMS reports, remote diagnostics, and scale calibration.
The Value
The rotor weigh feeder is equipped with an advanced automatic control system for accurate and stable powder feeding. The system supports automatic constant-flow control, remote start/stop, real-time flow rate display, cumulative material flow display, fault alarm, and integration with plant automation systems.
Through PLC or DCS communication, operators can monitor and control the rotor weigh feeder remotely. The system continuously compares the actual feeding rate with the preset target and automatically adjusts the operating speed to maintain a stable material flow.
This intelligent control solution helps improve weighing accuracy, feeding stability, production efficiency, and overall process automation, making the rotor weigh feeder suitable for cement, coal powder, mineral powder, fly ash, chemical powders, and other continuous powder feeding applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Measuring Accuracy | ≤ ±0.5% |
| Feeding Capacity | 0 – 1000 t/h |
| Rotor Diameter | 600 – 1800 mm (customizable) |
| Material Type | Free-flowing powders (cement, fly ash, coal powder, mineral powder, chemical powders, etc.) |
| Speed Adjustment Range | 1:10 (VFD controlled) |
| Control System | ZTJL-3105 dual-loop feed-forward |
| Communication Interfaces | RS485 (Modbus), Ethernet, 4–20mA, DCS/PLC hardwired |
| Optional Feature | GPRS wireless data transmission, remote diagnostics, remote calibration |
| Ambient Temperature | -10°C ~ +50°C |
| Material Temperature | ≤ 80°C (higher temperature options available) |
Why Choose Our Rotor Weigh Feeder?
Our Rotor Weigh Feeder is designed for continuous, accurate and stable weighing and feeding of powdery and fine bulk materials. Its gravimetric weighing principle helps reduce the influence of material density and flowability changes, providing more consistent feeding performance.
Key Advantages
1. High Weighing Accuracy
The integrated weighing system continuously measures material flow and provides real-time flow-rate and totalized quantity data, supporting precise process control.
2. Stable Continuous Feeding
The rotor provides uniform material transport and adjustable feeding speed, making it suitable for continuous industrial processes and demanding production lines.
3. Excellent for Powder Materials
It is particularly suitable for materials such as cement, fly ash, mineral powder, pulverized coal, lignite and other fine bulk materials.
4. Automatic Constant-Flow Control
The control system can automatically adjust rotor speed according to the measured material loading, helping maintain the required setpoint even when material conditions change.
5. Compact and Sealed Design
The enclosed rotor structure helps reduce dust leakage and material spillage while saving installation space.
6. Easy Maintenance
With a relatively simple mechanical structure and accessible measuring and drive components, routine inspection and maintenance can be simplified, helping reduce downtime and operating costs.
7. Easy Automation Integration
The Rotor Weigh Feeder can be connected with plant control systems for remote start/stop, flow monitoring, cumulative quantity display, alarm management and automatic process control.
8. Reliable Industrial Performance
A robust rotor structure, controlled rotational speed and enclosed material path make the equipment suitable for demanding applications in cement, mining, chemical, metallurgy, coal and other industries.
Why Weifang Zhitian?
We focus on providing practical, reliable and cost-effective weighing and feeding solutions tailored to each customer's material characteristics, capacity requirements and production process. Our Rotor Weigh Feeder can be configured with the appropriate weighing sensor, drive system and intelligent control system to achieve stable automatic feeding.
Applications
Cement & Building Materials – cement metering, mineral powder blending, fly ash addition
Power Generation & Coking – pulverized coal feeding for boilers and kilns
Chemical & Fertilizer – continuous proportioning of powder raw materials
Metallurgy, Ceramics & Glass – precise powder dosing for high-temperature processes
Ports, Grain & Feed – bulk powder handling and batching
ABOUT US
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
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)
After-Sales Service & Warranty
| Service Item | Commitment |
|---|---|
| Warranty Period | 12 months from commissioning (or 18 months from shipment, whichever comes first) |
| Response Time | Remote diagnosis within 1 hours (business hours) |
| On-site Service | Available within 24 hours (subject to location) |
| Spare Parts Availability | Guaranteed for 1 years after model discontinuation |
| Remote Support | RS485,DCS enables real-time diagnostic and calibration support |
Delivery & Logistics:
| Parameter | Specification | Note |
|---|---|---|
| Standard Model (rotor diameter ≤ 1000mm) | 1 – 2weeks | Stock components available |
| Standard Model (rotor diameter ≥ 1100mm) | 2 – 4 weeks | Subject to order confirmation |
| Custom-Engineered Model | 1 – 2 weeks | Special flange / coating / high-temp version |
| Spare Parts (wear parts) | 3 – 5 business days | Subject to stock availability |
| Expedited Shipping | Available upon request | Additional cost applies |
| Lead Time Start Point | Order confirmation + technical drawing approval | Excluding shipping time |
| Port of Loading | Qingdao/ Shanghai (China) | Alternate ports upon request |
| Standard Incoterms | FOB / CIF / EXW | Buyer's option |
FAQ – Quick Answers to Common Questions
Q1: Can it handle high-temperature materials?
A: Standard model up to 80°C.
Q2: What if my material is slightly sticky or moist?
A: Our variable-pitch airlock handles up to 20% moisture for most powders. For sticky materials, we recommend an optional internal coating or polishing treatment.
Q3: How is calibration performed on-site?
A: You can perform online material calibration (preferred), or use span check with a known weight. Remote calibration is also supported without an on-site visit.
Q4: Do you provide installation and commissioning?
A: Yes. We offer supervision service — our engineer will guide your team through installation, startup, and performance testing .
Q5: What if I need a custom capacity or flange size?
A: We provide custom engineering for rotor diameter, inlet/outlet connections, and motor options — just specify your requirements in the inquiry.
