YJD-HG-Square rotary feeder

Why Choose the SENOTAY YJD-HG Rotary Feeder

The YJD-HG Rotary Feeder discharges hot ash, dust, and abrasive granules through an out-of-shell bearing design that keeps the bearings physically isolated from the hot material path, letting it run at standard temperatures up to 90 degrees Celsius and high-temperature configurations up to 320, well beyond what Senotay's standard YJD-A and YJD-B series are rated for. Reinforced end covers and thicker cast steel housing hold airlock efficiency above 97 percent with leakage under 0.3 percent, tighter than either standard series, across ten models from YJD-HG-4 to YJD-HG-22 spanning 2 to 80 cubic meters per hour. Cement kilns and boiler ash handling systems use the HG series specifically for hot clinker dust and fly ash where a standard rotary feeder's bearings would overheat and fail well before the housing does, while power plants rely on the same reinforced sealing for continuous high-temperature discharge beneath electrostatic precipitators and baghouses. Hebei OuTai Environmental Protection Equipment Co Ltd manufactures the YJD-HG Series in Hebei, China, with housing material, bearing configuration, and pressure rating matched to the material's temperature and abrasiveness.

The Rotary Valve: A Precision Gatekeeper for Industry

A rotary valve is a fundamental mechanical device used to control the flow of dry, bulk materials like powder, granules, or pellets. Its primary role is to function as a precision gatekeeper, consistently discharging a set amount of material from one chamber to another.

More importantly, it acts as an airlock seal. This allows it to maintain a critical pressure difference between two areas, such as between a pressurized pneumatic conveyor system and a storage tank at normal atmospheric pressure. By doing so, it enables material to flow through without letting the valuable pressure escape, making it an indispensable component in industries ranging from plastics and food processing to pharmaceuticals and chemical manufacturing.

Why the YJD-HG Square Unloader Is Important

The YJD-HG Square Unloader is essential in material handling systems because it:

• Maintains airtight      sealing, preventing air leakage in      pneumatic systems.

• Ensures continuous,      uniform discharge of materials.

• Prevents material      bridging and clogging.

• Improves dust collector      efficiency.

• Enhances overall system      stability and conveying performance.

• Protects equipment from      pressure fluctuations.

Without a high-quality rotary valve, industries face issues like dust backflow, inconsistent feeding, equipment wear, and energy loss.

Why Leading Plants Choose SENOTAY  YJD-HG Rotary Feeder 

Factory-Direct Pricing. Certified Quality. Dedicated Support.

• Best Price Guarantee

• Certified & Compliant

• ISO 9001 and CE certified.

• Fast, Reliable Delivery

Types and Specifications of YJD-HG-Square rotary feeder we supply

Product Description 

Senotay’s YJD-HG Square Unloader is engineered with precision components and robust materials, making it suitable for continuous 24/7 industrial operations.

Key features include:

• Thickened cast iron or steel housing for heavy-duty applications.

• Precision-machined rotor with optimal blade clearance.

• Upgraded sealing structure for airlock reliability.

• High-efficiency gear motor for stable torque output.

• Square mounting flange for easy installation on dust collectors and      silos.

• Dust-tight, pressure-resistant construction for demanding environments.

Available Types: YJD-HG-4, YJD-HG-6, YJD-HG-8, YJD-HG-10, YJD-HG-12, YJD-HG-14, YJD-HG-16, YJD-HG-18, YJD-HG-20, YJD-HG-22

YJD-HG Square Unloader — Technical Specification Table

How It Works – Working Mechanism

1. Material falls into the square inlet and      fills the rotor chambers.

2. The rotor rotates at a constant speed using the      geared motor.

3. Material is transported to the discharge port      while maintaining complete airtight sealing.

4. Discharged material moves into the next processing      stage without air pressure loss.

This process ensures steady flow control, protects equipment, and enhances system performance.

Core Components

A complete YJD-HG Square Unloader consists of:

1. Square inlet flange.

2. Reinforced body housing.

3. Precision-welded rotor.

4. Sealed end covers with enhanced gaskets.

5. High-strength transmission shaft.

6. Heavy-duty bearing assembly..

7. Gear reducer motor

8. Optional wear-resistant coatings.

9. Star feeder rotor (multi-blade design).

These components work together to provide smooth rotation, minimal friction, and reliable material discharge.

YJD-HG Square Unloader Installation Method

1. Position the unloader under the silo or dust      collector outlet.

2. Align the square flange and mount using      high-strength bolts.

3. Ensure rotor shaft alignment to avoid mechanical      interference.

4. Connect the geared motor to the electrical supply      using proper grounding.

5. Confirm correct rotation direction before      operation.

6. Install flexible joints if connecting to pneumatic      conveying pipelines.

7. Conduct a trial run to ensure quiet, smooth,      vibration-free operation.

Correct installation ensures maximum efficiency and long operational life.

Why It’s Important to Invest in the YJD-HG Square Unloader

• Longer lifespan due to reinforced body and advanced sealing

• Stable and continuous operation

• Minimal maintenance requirements

• Improved energy efficiency

• Higher dust collection accuracy

• Reduced system downtime

• Supports high-temperature and abrasive material      handling

Investing in a high-quality rotary valve significantly reduces operational costs and enhances reliability.

Explore More Conveying Equipment with SENOTAY

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     | Tubular Screw Conveyor | U-type Screw Conveyor | Shaftless Screw Conveyor

▪ Chain Conveyor

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▪ Bucket Elevator

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▪ Dust Humidifying Mixer

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▪ Rotary Feeder

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FAQs

1. What materials can the YJD-HG Square Unloader handle?

Answers:Suitable for powders, dust, flakes, granules, and abrasive materials.

2. Can it operate at high temperatures?

Answers:Yes, customized versions operate safely up to 300°C.

3. What is the difference between HG and standard rotary valves?

Answers:The HG series features stronger sealing, reinforced structure, improved durability, and better performance.

4. Does Senotay offer customization?

Answers:Yes—materials, size, motor power, coatings, and designs can be fully customized.

5. What industries use the YJD-HG Square Unloader?

Answers:Cement, mining, food processing, chemical plants, grain mills, power plants, and any industry using dust collection or conveying systems.