Products Description
Need a dust-free, sanitary solution for transferring powders and granules?
Guanjiang's Negative Pressure Pneumatic Conveying System (Vacuum Conveyor) is the premier solution for clean, enclosed material transfer. By creating a vacuum, materials are drawn into the pipeline — any potential leaks are inward-facing, completely eliminating environmental contamination and protecting operators from hazardous dust. The modular "tool-free" quick-release design enables rapid disassembly and thorough cleaning, making it ideal for GMP-compliant pharmaceutical and food applications.
Key Advantages
Operates entirely under negative pressure — leaks are inward-facing, preventing dust escape. Perfect for GMP-compliant environments in pharmaceutical and food industries.
Quick-release clamps enable rapid disassembly without tools. Allows for thorough cleaning between batches — prevents cross-contamination and reduces downtime.
Easily integrated into existing production lines above mixers, tablet presses, or packaging machines — occupies minimal floor space.
Equipped with Ti-coated or HEPA filters with automatic pulse-back cleaning — maintains consistent suction performance and extends filter life.
Technical Specifications
| Parameter | Specification Range |
|---|---|
| Conveying Capacity | 100 kg/h ~ 6000 kg/h (customizable) |
| Conveying Distance | Up to 30m horizontal / 10m vertical |
| Material of Construction | Stainless Steel SUS304 / 316L (GMP grade) |
| Power Source | Compressed air / Electric vacuum pump / Roots blower |
| Filter Type | Polyester, PTFE-coated, Titanium (Ti-coated), HEPA |
| Filter Cleaning | Automatic pulse-jet / reverse air |
| Operating Pressure (Vacuum) | -0.02 MPa ~ -0.08 MPa |
| Discharge Valve | Manual / Pneumatic butterfly valve (sanitary design) |
? System Configuration Options:
Vacuum Source: Compressed-air driven venturi (no electricity) / Electric vacuum pump / Central Roots blower system
Control Options: Manual push-button / PLC with HMI touchscreen / Integration with plant DCS
Sanitary Add-ons: CIP spray balls, quick-release vacuum hose couplings, polished interior surfaces (Ra<0.4μm)
Material Compatibility: Powders, granules, flakes, capsules, tablets (gentle conveying available)
Vacuum Conveying FAQs
Q1: Why choose negative pressure (vacuum) over positive pressure conveying?
A: Negative pressure systems are inherently dust-free — any leak draws air into the system, not out. This makes them ideal for GMP environments and toxic materials. They also excel at multiple pickup points (drawing from several sources) and gentle conveying of fragile materials like capsules or tablets.
Q2: Is it suitable for fragile granules, capsules, or tablets?
A: Yes. We can adjust the vacuum flow velocity and air-to-material ratio to achieve "gentle conveying." This minimizes impact and prevents breakage of delicate products. Many pharmaceutical and nutraceutical customers use our systems for transferring capsules, softgels, and tablets without damage.
Q3: How does the automatic filter cleaning work?
A: The pulse-jet cleaning system uses a short burst of compressed air (0.4-0.6 MPa) directed 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 automated and occurs without stopping the conveying operation — ensuring consistent suction performance.
Q4: How do you clean the vacuum conveyor between different products?
A: The "tool-free" quick-release design allows operators to disassemble the conveyor body, hopper, and filters in minutes without any tools. All surfaces are polished stainless steel (Ra<0.4μm) for easy wiping. For automated cleaning, we offer an optional CIP (Clean-in-Place) system with spray balls.
Q5: What vacuum source options are available?
A: Three options: (1) Compressed-air driven venturi — no electricity, explosion-proof, low maintenance; (2) Electric vacuum pump — higher vacuum levels, energy-efficient for continuous operation; (3) Central Roots blower system — for multiple conveyors sharing one vacuum source. We'll recommend based on your capacity and facility setup.
Need a GMP-compliant vacuum conveying solution for your cleanroom?
Request a Quote → Download Datasheet (PDF)* Please provide your required capacity (kg/h), material type, conveying distance, and any GMP or ATEX requirements for a fast, accurate quotation.
