High-Efficiency Dust-Free Continuous Powder Conveying Solution

JR Machinery Continuous Vacuum Feeding Machine is an advanced negative pressure conveying system designed for continuous and stable transport of dry powder materials. It solves the problems of traditional intermittent feeding systems such as low efficiency, dust leakage, and unstable feeding.
With fully enclosed conveying technology, intelligent PLC control, and modular design, it is widely used in automated production lines across multiple industries.
Product Introduction
The continuous vacuum feeding machine integrates vacuum generation, filtration separation, and intelligent control systems to achieve uninterrupted material suction, conveying, and discharge.
Compared with traditional batch-type vacuum feeders, this system supports continuous feeding without interruption, significantly improving production efficiency and stability.
Key construction materials include 304/316L stainless steel, ensuring corrosion and wear resistance and compliance with GMP and ISO standards.

Working Principle of Continuous Vacuum Feeding Machine
The system operates based on negative pressure conveying technology:
- Vacuum generator creates a high negative pressure environment inside the system
- Material is sucked into the pipeline through suction nozzles
- Air and powder are separated by a high-efficiency filtration system
- Material is continuously transported to the discharge point
- Pulse backblowing system cleans filters automatically to prevent clogging
The PLC intelligent control system synchronizes vacuum pressure, feeding speed, and discharge volume to ensure stable continuous operation.


Product Advantages
- 24-Hour Continuous Operation
- Supports uninterrupted feeding for large-scale production lines with capacity up to 1000–8000 kg/h.
- Dust-Free & Clean Production
- Fully sealed system prevents dust leakage and ensures a clean working environment.
- High-Precision Feeding
- Feeding accuracy can reach ±2% with optional weighing and dosing systems.
- Energy Efficient
- Energy consumption is reduced by up to 30% compared with traditional systems.
- Intelligent Control
- PLC + touch screen operation enables automatic start/stop, parameter adjustment, and fault alarm.
- Strong Material Adaptability
- Suitable for most dry powders including chemical, pharmaceutical, and mineral materials.
- Durable & Low Maintenance
- Stainless steel structure with imported components ensures long service life and stable performance.
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Technical Parameters
| Model | Power (V/Hz) | Conveying Capacity (kg/h) | Hopper Volume (L) | Working Pressure (MPa) |
|---|---|---|---|---|
| 450 – Continuous Large Hopper | 380/50 | 1000–3000 | 157 | 0.6–0.8 |
| 650 – Continuous Large Hopper | 380/50 | 3000–6000 | 290 | 0.6–0.8 |
| 800 – Continuous Large Hopper | 380/50 | 6000–8000 | 470 | 0.6–0.8 |
Applications
JR Machinery Continuous Vacuum Feeding Machine has a wide range of applications, relying on its efficient, dust-free and stable performance, and is widely used in various industries that need continuous conveying of dry powder materials, mainly including:

Non-Metallic Mineral Industry
Conveying of fumed silica, white carbon black, expanded mica, talcum powder and other non-metallic mineral powders.

Fine Chemical Industry
Conveying of organic powders such as acrylic resin, silicone resin, and fine chemical raw materials and intermediates.

Pharmaceutical Industry
Conveying of pharmaceutical raw materials, pharmaceutical intermediates, powder medicines and other materials that require clean production.

Food Industry
Conveying of food additives, powdered food, grain powder and other food materials (meeting food-grade standards).
About JR Machinery
JR Machinery is a professional manufacturer specializing in material conveying, screening, mixing, and unloading equipment.
With strong R&D capability and over years of industry experience, we provide reliable, efficient, and customized industrial solutions worldwide.
Our continuous vacuum feeding machine series is widely used across multiple industries and supported by technical patents and professional engineering services.
We follow the principle of “Quality First, Customer First”, offering full lifecycle support from design to after-sales service.
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