Www.nordson-finishing-eu.com Nordson Europe Industrial Coating Systems 3 rd Generation Powder Coating Equipment

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


The world's leading manufacturer of systems that apply adhesives, sealants and coatings during manufacturing operations.


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


•Coating and finishing systems


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 ?


Delivery hose cross section

What Does It Do For The User ?


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


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


Dense phase pumps achieve linear output


Lack of wear components means consistency over time


Reduced total air consumption compared to venturi 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



Advanced transfer efficiency even improves speed of coating !


Coating parameters stored in application controller

Digital control and storage of :

Voltage

Current

Air Flow

Gun Movers


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


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


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




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




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


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


When dense phase coating is compared process control can be clearly displayed

Process Improvement


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



Thank You.

Documents

Www.nordson-finishing-eu.com Nordson Europe Industrial Coating Systems 3 rd Generation Powder Coating Equipment