Products Description
Need a compact, GMP-compliant vacuum conveyor for small to medium powder transfer applications?
Guanjiang's ZKS-1 and ZKS-2 Vacuum Powder Conveyors offer 400-600 kg/h capacities in a space-saving design (φ290×802mm). These dust-free vacuum feeders automatically convey powders and granules into mixers, packaging machines, and crushers — eliminating manual handling and dust overflow. With oil-free/water-free vacuum pumps, automatic filter cleaning, and multiple filter options, they are essential for GMP certification in pharmaceutical and food factories.
Key Advantages of ZKS-1 & ZKS-2
Both models share the same φ290×802mm dimensions — fits easily above mixers, tablet presses, or packaging machines. Ideal for facilities with limited headroom.
ZKS-1: 400 kg/h (1.5KW) / ZKS-2: 600 kg/h (2.2KW). Perfect for small to medium production lines, R&D, and pilot plants.
Fully enclosed system eliminates dust emission — essential for pharmaceutical and food GMP certification. Promotes clean production.
Choose from polyester film-coated, PE, 316L stainless steel, or titanium metal filters — tailored to your material and hygiene requirements.
Additional Features
✅ Oil-free & water-free vacuum pump — no contamination
✅ Automatic back-blowing filter cleaning — no downtime
✅ Automatic level control — unattended operation
✅ Flexible pipeline configuration — multiple pickup/discharge points
System Components
Each ZKS vacuum feeder consists of:
- Vacuum pump (oil-free & water-free)
- Vacuum hopper
- Filter assembly (multiple options)
- Compressed air back-blowing device
- Pneumatic discharge gate device
- Automatic material level control device
- Stainless steel suction nozzle
- Conveying hose
Design: Rational design and exquisite manufacturing ensure reliable, long-lasting operation.
Technical Specifications (ZKS Series)
| Model | Motor Power | Capacity (kg/h) | Suction Port | Working Pressure | Gas Consumption | Dimensions (mm) |
|---|---|---|---|---|---|---|
| ZKS-1 | 1.5KW | 400 | φ38mm | 0.4-0.6 MPa | 500 NL/min | φ290×802 |
| ZKS-2 | 2.2KW | 600 | φ39mm | φ290×802 | ||
| ZKS-3 | 3KW | 1200 | φ51mm | φ290×952 | ||
| ZKS-4 | 5.5KW | 2500 | φ51mm | φ420×1216 | ||
| ZKS-6 | 5.5KW | 3200 | φ51mm | φ420×1216 | ||
| ZKS-7 | 7.5KW | 6000 | φ63mm | φ420×1379 | ||
| ZKS-10-6 | 7.5KW | 6000 | φ76mm | φ600×1907 | ||
| ZKS-20-5 | 11KW | 5000 | φ102mm | φ800×2070 |
? Which Model Should You Choose?
ZKS-1 (400 kg/h): Ideal for R&D labs, pilot plants, and small-batch production of high-value pharmaceutical APIs or food ingredients.
ZKS-2 (600 kg/h): Perfect for small to medium production lines, offering higher throughput while maintaining the same compact footprint.
Larger models (ZKS-3 to ZKS-20-5): Available for higher capacity requirements — see table above.
Vacuum Conveyor FAQs
Q1: What is the difference between ZKS-1 and ZKS-2?
A: Both models share the same compact footprint (φ290×802mm). The difference is motor power and capacity: ZKS-1 uses a 1.5KW motor for 400 kg/h, while ZKS-2 uses a 2.2KW motor for 600 kg/h. Choose based on your required throughput.
Q2: Can these small conveyors be used for multiple pieces of equipment?
A: Yes. The compact size makes them portable and easy to move. One ZKS-1 or ZKS-2 can serve multiple mixers, tablet presses, or packaging machines alternately — ideal for facilities with several small-scale operations.
Q3: What filter options are available for pharmaceutical applications?
A: For pharmaceutical GMP applications, we recommend 316L stainless steel filters or titanium metal filters — they are durable, easy to clean, and validated for sterile applications. Polyester or PE filters are suitable for non-critical food or chemical applications.
Q4: How does the automatic back-blowing filter cleaning work?
A: When the filter becomes clogged, the system sends a short burst of compressed air (0.4-0.6 MPa) backwards through the filter. This blasts accumulated dust off the filter surface, allowing it to fall back into the hopper. The cleaning cycle is fully automatic and occurs without stopping the conveying operation.
Q5: Can these models convey directly into mixers?
A: Yes. The ZKS-1 and ZKS-2 are specifically designed to convey materials directly into V-type mixers, two-dimensional mixers, three-dimensional mixers, and other blending equipment. The discharge valve seals directly to the mixer inlet, ensuring dust-free transfer.
Need a compact, GMP-compliant vacuum conveyor for your small to medium powder transfer application?
Request a Quote → Download Datasheet (PDF)* Please provide your required capacity (kg/h), material type, and filter preference for a fast, accurate quotation.


