Huirui-Laser’s Technological Leadership in Powder Feeding Systems

As a pioneer in powder conveying technology, Huirui-Laser has spent more than a decade advancing research in this critical field. Its laser powder feeding systems have achieved a generational technological advantage, securing top positions across multiple dimensions of the industry’s innovation map.

Huirui-Laser’s standard powder feeders are now deeply embedded in metal 3D printing, laser cladding, and plasma spraying, serving hundreds of benchmark customers worldwide. Known for “precision powder delivery”, the company has become a trusted name in additive manufacturing and surface engineering.

Breaking the Barriers of Micro Powder Delivery

Facing the growing challenge of micro-precision powder transport, Huirui-Laser’s R&D team adopted a problem-oriented innovation strategy. Targeting five critical “blank zones” — micro-fine powders, non-metallic powders, composite powders, crystalline powders, and large-volume continuous operations — the company developed three breakthrough product lines:

• PFH Series Active Powder Feeders
• Micro-Fine Powder Feeders
• Electromagnetic Disk Powder Feeders

Each of these series has undergone successful validation in collaboration with leading industrial enterprises, proving their high stability, precision, and adaptability.

Today, Huirui-Laser has built a complete full-scenario powder delivery matrix, covering everything from conventional powders to extreme-condition materials. This enables clients to achieve end-to-end process optimization, from laboratory R&D to mass production, reaching nano-level precision, micron-level control, and millimeter-level responsiveness.

01. PFH Series Active Powder Feeder — Designed for Ultra-Pure and Sensitive Environments

The PFH Series Active Powder Feeder utilizes Huirui-Laser’s proprietary disk-gas powder feeding technology, engineered specifically for industries requiring extreme control over oxygen, moisture, and impurity levels, such as semiconductor manufacturing.

An independent sealed chamber combined with a 316L stainless-steel powder barrel provides outstanding corrosion resistance and airtightness, effectively isolating air, moisture, and contaminants. Even when opened, the feeder maintains a clean internal environment. The system’s high-purity carrier gas protection ensures long-term powder quality and boosts yield rates and production efficiency.

Key Technical Advantages

1. Ultra-Clean Delivery Environment – Sealed chamber with full carrier-gas protection prevents contamination.
2. High-Precision, Stable Feeding – CNC-machined rotating disk and drive shaft enable precise, repeatable delivery.
3. Multi-Scenario Adaptability – Adjustable feeding disks cover particle sizes from 20–800 μm.
4. Extended Operation – 5 L capacity supports long, uninterrupted runs.
5. Corrosion-Resistant & Portable Design – Modular build suits both laboratory and production settings.
6. Smart Modular Integration – Compact form saves 30% space, simplifies control by 50%, and supports OPC UA / MES connectivity.
7. Zero-Leakage Sealing – Vacuum-tight chamber ensures stability under extreme conditions.

Parameter	Specification
Product Model	HR-PFH-ST5H06-CB
Powder Feed Rate	0.4-200 g/min
Powder Granularity	20-800 μm
Powder Feed Error	≤ ±2%
Powder Conveying Distance	< 20 m
Drive Motor	Servo Motor
Powder Canister	316L Stainless Steel Powder Canister
Negative Pressure Range	1-5 kPa
Single Canister Volume	5 L
Environmental Chamber Parameters	Water Oxygen Index: < 100 ppm Leak Rate: < 0.01 vol%/h Sealed Chamber, Gas Tight, Water and Oxygen Controlled

02. Micro-Fine Powder Feeder — Precision and Consistency for Large-Scale Operations

Based on linear electromagnetic vibration technology, this system delivers powder from a 22 L large-capacity barrel into a vibration trough, then through positive-pressure feeding into a sealed pipeline. The design ensures stable, loss-free long-distance feeding, ideal for large-area spraying or mass production tasks.

Key Features

• Wide Applicability: Handles micro-fine, non-metallic, synthetic, and crystalline powders.
• Stable, Efficient Transport: Layered feed structure prevents flow fluctuation.
• High Capacity: One fill supports long continuous operation.
• Flexible Integration: Synchronizes with master control units for customized setups.
• Automated Precision: Electromagnetic vibration ensures uniform output and consistent quality.

Parameter	Specification
Product Model	HR-PFNM-L
Powder Feed Rate	0.1-300 g/min (Non-metallic powder)
Applicable Granularity	5-800 μm
Powder Feed Error	≤ 3%
Air Pressure	0.2-0.5 MPa
Gas Flow Rate	3-50 L/min (Optional)
Heating Temperature	N/A (Optional)
Single Canister Volume	22 L
Optional Functions	Automatic continuous powder feeding; Real-time weighing function
Drive Motor	Brushless DC Motor
Remote Control	IO / AI / Modbus TCP / Profinet

03. Electromagnetic Disk Powder Feeder — Spiral Precision Feeding with Anti-Clog Design

This feeder employs circular electromagnetic vibration to drive powder in a spiral ascent through a sealed chamber, achieving stable, leak-free long-distance transport. Its extended feed path and de-agglomeration vibration guarantee uniform output and continuous flow, preventing powder clumping or blockage.

Technical Highlights

• Broad Compatibility: Ideal for micro-fine, non-metallic, composite, and crystalline powders.
• Spiral Conveying Efficiency: Reduces powder sedimentation and dust generation.
• Long-Range Stability: Sealed structure prevents leakage or contamination.
• Uniform Output: Dual-effect design ensures even powder delivery.
• Anti-Clog Function: Real-time vibration separation minimizes downtime and maintenance.

Parameter	Specification
Product Model	HR-PFNM-D
Powder Feed Rate	0.1-90 g/min (Non-metallic powder)
Applicable Granularity	5-800 μm
Powder Feed Error	≤ 3%
Air Pressure	0.2-0.7 MPa
Gas Flow Rate	3-50 L/min (Optional)
Heating Temperature	N/A (Optional)
Single Canister Volume	1.5 L
Optional Functions	Automatic continuous powder feeding; Real-time weighing function
Drive Motor	N/A
Remote Control	IO / AI / Modbus TCP / Profinet

Empowering the Future of Additive Manufacturing

As a benchmark enterprise in laser metal additive manufacturing, Huirui-Laser continues to drive innovation in industrial-grade laser and powder feeding technologies. The new micro-powder feeder lineup breaks long-standing technical barriers in micro-fine, non-metallic, and composite powder delivery, providing more flexible, reliable, and precise solutions for both scientific research and industrial production.

Looking forward, Huirui-Laser will remain deeply committed to advancing laser metal additive manufacturing and powder transport technologies. Through innovation and quality, the company aims to build lasting trust and collaboration with global partners — driving industrial upgrading and enabling the future of intelligent manufacturing.