How to Get the Most from Your Venturi Based Trim Conveying system
Venturi type pneumatic trim conveying systems, like CAC's FOX TrimAway systems are an excellent choice for efficient, reliable and cost effective edge trim waste handling. These types of edge trim conveying systems use a blower to power specialized venturi, which generates suction to capture and pressure to convey edge trim waste. Some things to consider to get the most from your venturi based pneumatic trim removal system:
Keep intake distance to a minimum. Intake duct is the total amount of duct on the suction side of the venturi. There is far more air flow on the discharge side of the venturi, typically twice the suction side. Short intake distance gets the trim to the most powerful portion of the system in the least amount of space.
Ensure the blower pressure, powering the venturi, is operating at the highest possible pressure. Check for leaks and decrease bends in the duct powering the venturi.
All duct work bends should be long sweeps. Sharp elbow type bends create restriction and stop the easy flow of the edge trims through the system.
A change in operating specifications (machine speed, trim width, conveying distance) may require system changes to operate properly.
Always check blower amperage at initial setup of the system to make sure the blower is operating within its' proper range.
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Most venturi's are adjustable if the system is under powered or overpowered for your application. Always follow manufacturers instructions for venturi adjustment.
Most blowers, as supplied with FOX TrimAway systems, can be controlled with variable frequency drives (VFD). Controlling with a VFD can increase efficiency and decrease overall power consumption.
Use Teflon coated components and duct for applications where exposed adhesive is a concern to eliminate duct clogs.
Check suction filters regularly to insure blower efficiency. Properly designed, sized and maintained venturi based trim removal systems will provide years of reliable service.
Add a chopper for long conveying distances and to decrease collection bulk.