GZ Series Vibrating Feeder
The GZ Series Vibrating Feeder provides uniform, controlled feeding of material to crushers, grinding mills, and other processing equipment. Using electromagnetic or electromechanical vibration, the feeder delivers material at a precisely adjustable rate, ensuring consistent equipment loading and optimal production efficiency. A built-in grizzly screen section can pre-screen fines before the crusher, improving throughput and reducing crusher wear. LIMING's vibrating feeders are built for continuous duty in demanding mineral processing environments, with wear-resistant trough liners and robust drive systems.
Working Principle
Material is loaded into the feeder trough from a hopper or bin. The trough vibrates at a controlled frequency and amplitude, moving material forward in small hops along the trough surface. The feed rate is controlled by adjusting vibration amplitude or frequency. A grizzly bar section at the discharge end can screen out fines, allowing only oversized material to enter the crusher while fines bypass directly to the conveyor.
The grinding process is precisely controlled by the integrated classification system, which separates qualified fine powder from coarse particles. Coarse particles fall back to the grinding chamber for regrinding, while fine powder is conveyed by airflow to the cyclone collector and then to the finished product silo. This closed-circuit design ensures consistent product quality and high grinding efficiency.
Key Features & Advantages
Uniform Feeding
Controlled vibration delivers material at a consistent, adjustable rate, preventing equipment overload and underfeed conditions.
Grizzly Pre-Screening
Optional grizzly bar section screens out fines, reducing crusher load and wear while bypassing fines directly to the conveyor.
Adjustable Feed Rate
Feed rate is continuously adjustable from near-zero to maximum, providing precise control over production line capacity.
Wear-Resistant Trough
Hardened steel or wear-plate trough liners resist abrasion from sharp, hard mineral feed materials.
Low Power Consumption
Electromagnetic or small unbalanced motor drives consume minimal power relative to the material throughput.
Applications & Industry Use
This equipment is widely used across multiple industries for various powder processing applications:
- Feeding jaw crusher
- Feeding grinding mill
- Feeding impact crusher
- Batch weighing and dosing
- Material transfer between processes
Processable Materials
The versatile design of this equipment allows it to process a wide range of non-metallic minerals and industrial materials. Below are some of the most commonly processed materials. For detailed grinding solutions for each material, please visit our materials page.
Technical Specifications
The following table provides detailed technical parameters for each model in this product series. These specifications are based on standard configurations and may vary depending on material properties and specific application requirements. Contact our engineering team for customized configurations.
| Model | GZ-1 | GZ-3 | GZ-5 | GZ-7 |
|---|---|---|---|---|
| Trough Width (mm) | 200 | 400 | 600 | 800 |
| Max Feed Size (mm) | 60 | 100 | 200 | 300 |
| Capacity (t/h) | 2-5 | 15-30 | 40-80 | 80-150 |
| Power (kW) | 0.06 | 0.25 | 0.65 | 1.1 |
Performance & Efficiency
The GZ Series Vibrating Feeder is designed for maximum grinding efficiency and energy savings. The optimized grinding chamber geometry, combined with high-precision classification, ensures that energy is used effectively for particle size reduction rather than wasted on over-grinding or heat generation. Compared to conventional milling systems, our equipment typically achieves 20-30% lower power consumption per ton of finished powder.
Key performance metrics include stable fineness control with deviation less than 5%, low noise levels below 75 dB at 1 meter distance, and dust emissions below 20 mg/m3 when equipped with our pulse bag filter system. These performance characteristics make our equipment suitable for even the most demanding industrial environments and stringent environmental regulations.
Installation & Commissioning
Proper installation is critical for optimal equipment performance and longevity. Our experienced engineers provide on-site installation and commissioning services, including equipment positioning, alignment, electrical connection, piping installation, and system integration. The typical installation timeline ranges from 15 to 45 days depending on equipment model and production line complexity.
During commissioning, we conduct comprehensive performance tests including no-load test, load test, and production trial runs. We verify all performance parameters meet design specifications, calibrate control systems, train your operators on proper operation and maintenance procedures, and deliver a complete commissioning report with all test data.
Frequently Asked Questions
The grizzly bars screen out fine material (already smaller than the crusher setting) before it enters the crusher. This reduces crusher load, increases throughput, and reduces wear. Fines bypass directly to the conveyor, improving overall plant efficiency.
For electromagnetic feeders, the amplitude (and thus feed rate) is continuously adjustable by changing the thyristor-controlled voltage. For motor-driven feeders, feed rate is adjusted by changing the unbalanced weight angle or using a variable-frequency drive.