QVC-3 Pneumatic Vacuum Feeder

 

The QVC-3 pneumatic vacuum feeder is our top-tier high-throughput heavy-duty conveying unit, specially developed for large-scale industrial production lines with hourly output above 700 kg. It completely upgrades silo volume, filtration area, backflush power, and pipeline specification on the basis of QVC-2 medium model, breaking the throughput bottleneck of medium-sized feeders and supporting non-stop all-shift continuous feeding for mass production workshops. Adopting segmented combined vertical large-capacity silo structure, QVC-3 integrates buffer separation section, filter bin, and large-volume storage bin in one body, realizing primary gas-material separation before powder enters the filter area, reducing filter element burden and further extending filter service life for long-cycle mass production.

The whole machine retains full food-grade 304 stainless steel material contact structure, and thickens silo wall plates to resist vibration deformation under long-hour high-load operation. The widened Φ38 suction pipeline standard configuration matches large-flow negative pressure conveying, reducing material pipeline blockage probability when transporting high-density bulk powder. The unified 220V single-phase power supply design avoids complicated three-phase power transformation construction for factory clients, simplifying on-site wiring and equipment commissioning progress. This model is the preferred automated feeding equipment for factories pursuing high continuous output and low maintenance frequency.

 

 

Parameter Item	Specific Data
Model	QVC-3
Rated Power Supply	220V single-phase, 50/60Hz
Standard Conveying Capacity	700–1000 kg/h
Standard Silo Volume	7.7 L
Working Compressed Air Pressure	0.6–0.8 Mpa
Overall Hopper Dimension	Φ290 × 1072 mm
Standard Suction Pipeline	5 m Φ38 PVC steel wire reinforced hose

 

Test benchmark: Conveying capacity data tested with flour, vertical lifting height 3 m, horizontal conveying distance 2 m, for reference only. Conveying viscous, high-specific-gravity powder will lower actual hourly throughput accordingly.

 

 

1. Super Large Filtration & High-Power Backflush System

Upgraded to 6 pieces of Φ60×300 ultra-long stainless steel filter elements, the total filtration area increases by 50% compared with QVC-2 model, fully coping with high-volume powder suction flow without rapid pressure drop. The backflush system is equipped with QEA-15 quick exhaust valve and Φ89 L165 large-capacity backflush air bag. The air bag stores more compressed air to output stronger instantaneous reverse blowing airflow, which can completely clean thick compacted powder layers on filter elements even under 24-hour non-stop feeding state, effectively avoiding filter clogging and throughput attenuation in mass production scenarios. The front buffer separation bin separates large-particle materials first before air-powder mixture enters the filter area, further reducing filter abrasion and powder adhesion load.

 

2. Reinforced Heavy-Duty Pneumatic Discharge System

Still adopting the mature and reliable CRB2BW30-90SZ blade oscillating cylinder as the discharge drive core, matched with thickened self-made large-caliber sealed discharge gate. The extra-large conical storage silo guides massive materials to slide down uniformly by gravity, balancing the load of the swing cylinder and ensuring stable opening/closing response even under full silo material weight. Multi-layer high-temperature resistant silicone sealing rings are installed on the discharge gate to maintain absolute vacuum tightness during suction cycles, eliminating air leakage-induced suction loss that plagues ordinary large feeders.

 

3. Segmented Combined Large-Volume Stainless Steel Silo

Three-section split vertical 304 stainless steel silo: front buffer separation bin, middle filter bin, and rear large-capacity storage bin, connected via quick-release flange clamps for easy split disassembly and thorough internal cleaning. The maximum silo diameter reaches Φ290, single-cycle material storage capacity up to 7.7 L, drastically reducing the frequency of suction-unloading cycles and lowering wear loss of pneumatic and electrical components. Four Φ7 fixed mounting holes are reserved at the bottom base to lock the equipment firmly above large mixers, twin-screw extruders, and high-speed packaging lines, resisting vibration shift under long-hour heavy-load operation.

 

4. Industrial-Grade Stable Control System

Self-designed heavy-load dedicated control circuit board, matched with Taiwan Mean Well high-power switching power supply and complete Chint industrial electrical components with multi-level overload, short-circuit, and overheat protection. The top integrated control cabinet is isolated from the powder flow area to prevent dust infiltration and circuit aging. The control program supports longer continuous feeding timing parameters customized for mass production, with automatic fault alarm prompts for air pressure shortage, filter blockage, and discharge gate failure, reducing equipment downtime loss caused by unattended operation faults.

 

 

 

1. 700–1000 kg/h super large hourly throughput: Meets mass production line high-volume feeding demand, greatly reducing the number of feeding machines required for single production line, saving equipment procurement and maintenance costs.

2. Segmented buffer separation silo design: Pre-separates large particles to reduce filter element wear, extending filter replacement cycle by over 40% compared with medium-sized QVC-2 model, cutting long-term consumable expenses.

3. 6-piece ultra-long filter set + large air bag backflush: Solves the long-standing industry pain point of frequent filter cleaning for high-throughput feeders, supporting 24-hour shift continuous stable operation without daily shutdown maintenance.

4. Heavy-duty thickened silo & reinforced discharge gate: Adapted to long-hour high-load working conditions, structural deformation and sealing failure probability are far lower than thin-wall small and medium models, extending overall equipment service life.

 

 

 

Mainly used in large-scale flour processing factories, mass-production plastic pellet extrusion workshops, bulk chemical powder batching lines, high-speed automatic food packaging production lines, and large pharmaceutical raw material mixing workshops. Standard export wooden case packaging with land logistics delivery; customized services such as lengthened suction pipelines, anti-static explosion-proof configuration, special corrosion-resistant alloy silo lining, and centralized multi-machine linkage control can be developed after technical communication with our sales team. The equipment can be perfectly matched with all types of large downstream processing machinery to realize fully automatic unmanned feeding of entire production lines.

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