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www.nordson-finishing-eu.com
Nordson EuropeIndustrial Coating Systems
3rd Generation Powder Coating Equipment
• Founded in 1954
• Worldwide presence in 57 countries
• 4000 employees worldwide
• + 25,000 Nordson customers
• 2007 sales performance: $993 million
• Sales outside the United States:67 percent of 2006 sales
• Corporate homepage www.nordson.com
www.nordson-finishing-eu.com
The world's leading manufacturer of systems that apply adhesives, sealants and coatings during manufacturing operations.
www.nordson-finishing-eu.com
Headquarters in Cleveland, Ohio, USA
Direct operations and sales offices in 30 countries with more than 100 distributor organizations
Industrial Coatings
The company is structured into three major business segments :
Adhesive Dispensing
Advanced Technology
www.nordson-finishing-eu.com
•Coating and finishing systems
www.nordson-finishing-eu.com
Since the 1970’s powder coating application technology has………
Industrial Coating Systems
1st Generation
Low voltage cable fed guns (IPS)
Improved booth technology (focus)
Tribo
High voltage cable fed guns
Application focused
High output – low transfer efficiency
2nd Generation
Consistent, constant and reliable results
If you were to design the perfect powder coating system ?
Third Generation Technology
Industrial Coating Systems
Clean environment
Place powder only where its needed
Reduced waste
Control and manage the production
Reduced labour
Reduce operator acceptance and skill level
Quick colour change
The Heart / HDLV PumpNordson examined the three disciplines of powder coating:
What is ‘third generation’ coating technology
Powder Transport
Powder Circulation
Precision Dispensing
To improve each area we developed our ‘dense phase’ product family named Prodigy® HDLV®
The Heart / HDLV Pump
Powder delivery hose has a high concentration of powder, very little air.
Traditional venturi pumps use hi-velocity air – HDLV pumps meter powder to the gun using less air to propel.
HDLV is 4 times slower – softer spray.
What is ‘Dense Phase’ Equipment ?
HDLV = High Density powder, Low Velocity air
Prodigy® HDLV® Technology
Delivery hose cross section
Dense Phase Hose
Venturi Pump Hose
The Heart / HDLV PumpWhat is ‘Dense Phase’ Equipment ?
Prodigy® HDLV® Technology
Delivery hose cross section
What Does It Do For The User ?
Prodigy® HDLV® Technology
Provides process control Less overspray Higher transfer efficiency Lower velocity powder = higher useful electrostatic force Paints faraday areas and corners easier Higher powder output with better charging
The Heart / HDLV Pump
Prodigy® HDLV® Technology
At the centre of dense phase technology is the HDLV (High Density Low Velocity) pump.
It resembles a human heart in that it consists of two side by side pumps each with an upper and lower chamber working together to provide precise, carefully synchronized powder transport.
How Does It Work ?
Prodigy® HDLV® Powder Transport
Dense Phase PumpFlow rate controlled by cycle rate & suction
durationVery little air goes out to the gun0.5 to 1.2 scfm of conveyance air
Use 6mm ID powder tubing
The old and the new
Traditional Venturi Pumps vs Dense Phase Pumps
Venturi PumpFlow rate controlled by combination of Flow + Atomizing air flow ratesLots of air goes out to the gunUse 11mm or 12.5mm ID powder hose
Dosing air
Venturi pumps are non-linear in output
Traditional Venturi Pumps vs Dense Phase Pumps
Dense phase pumps achieve linear output
Traditional Venturi Pumps vs Dense Phase Pumps
Lack of wear components means consistency over time
Traditional Venturi Pumps vs Dense Phase Pumps
Reduced total air consumption compared to venturi pumps
Traditional Venturi Pumps vs Dense Phase Pumps
Prodigy® HDLV® Powder Transport
Self cleaning / colour changing
Constant powder output over time
30 second colour change
High volume – low air consumption
6mm ID powder hose
Dense Phase Pump Without Moving Parts
Prodigy® HDLV®
Precision Dispensing
Unique profile prevents powder build up on the gun
New gun to spray dense phase
Automatic gun with straight through powder path, optimised for dense phase dispensing and quick colour change
Prodigy® HDLV® Precision Dispensing
Voltage multiplier positioned at the back of the gun – so it operates outside of the booth, reducing gun flex and grounding issues
New gun to spray dense phase
Prodigy® HDLV® Precision Dispensing
Advanced transfer efficiency even improves speed of coating !
New gun to spray dense phase
Coating parameters stored in application controller
Digital control and storage of :
Voltage
Current
Air Flow
Gun Movers
Prodigy® HDLV® Precision Dispensing
Coating parameters stored in iControl
1 place to focus on…
The Central Controller
Copy / paste function for settings
Security access levels
Simple graphics or icons
% Adjust button
Prodigy® HDLV® Precision Dispensing
High capacity pump
Prodigy® HDLV® Powder Circulation
Simple pneumatic control for ease of operation
Less compressed air used to propel the powder results in more efficient recycling
Improved sieve efficiency and throughput
Automatically purge-able
Less wear, no venturi throats to replace
RecyclingColour change
Recycle more efficiently with reduced air and more powder
Prodigy® HDLV® Powder Circulation
Small compact surge hopper
Designed for automatic fast color change without disassembly
Small flexible tubing -12mm ID
High transfer efficiency of Prodigy spraying in a ColorMax3 booth
Advanced Booth Design
Clean working environment
Less to clean; faster colour change
The Old
Way
The New
Way
Third Generation Coating Equipment
Prodigy® HDLV® Technology
3 Steps To Process Control
1. Transport process control is achieved by eliminating venturi wear from the equation and ensuring that air inputs to the pump are monitored and driven by a closed loop control system, dynamically compensating for fluctuations in factory air supply
Third Generation Coating Equipment
Prodigy® HDLV® Technology
3 Steps To Process Control
2. Dispensing process control is achieved by conserving all application parameters in the control system, and by spraying through a soft spray gun suited to dense phase applications. This ensures the same results are achieved day after day
Third Generation Coating Equipment
Prodigy® HDLV® Technology
3 Steps To Process Control
3. Recycle process control is achieved by reduced compressed air used to propel the powder, producing more efficient recycling, sieving and bulk feeding
Process Improvement
Prodigy® HDLV® Technology
Fig.1 shows a powder coating line running without Prodigy technology, showing the film thickness across the product. Point 1 is the minimum required film thickness
Process Improvement
Prodigy® HDLV® Technology
When dense phase coating is compared process control can be clearly displayed
Process Improvement
Prodigy® HDLV® Technology
Once process control is accomplished, improvement is achievable by using the control system and ‘digital’ nature of the technology to % adjust the gun outputs (linear output)
Dense Phase Equipment summary
Process control and improvement
Better coating penetration
Consistent powder flow rate over time
Less air consumption
Faster color change
Higher quality color change
Prodigy® HDLV® Technology
www.nordson-finishing-eu.com
Thank You.
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