HDLV® Technology for repeatable, high deposition rate

The Encore HD Automatic Powder Spray Guns from Nordson – the third, and most advanced, generation dense-phase powder spray guns – incorporate a proprietary, integral HDLV module* for the most versatile and efficient performance available today.

Designed specifically to work with Nordson HDLV pump technology, the unique and innovative Encore HD gun design allows easy adjustment of the powder concentration and spray velocity to achieve optimum coating coverage and cured finish quality for every conceivable part type. From a highly dense phase spray to a more diluted (powder and air) mixture, and everywhere in between. The pump and gun also provide exceptionally fast, contamination-free color change. 

Features and Advantages

1. Easy adjustment of the powder concentration and spray velocity to achieve optimum coating coverage and cured finish quality for every conceivable part type
2. Highly uniform powder spray patterns -- go from a highly dense phase spray to a more diluted (powder and air) mixture
3. The ability to increase or decrease spray velocity when required
4. Takes advantage of Encore® HD pump Link to More and Color-On-Demand instant color change systems
5. Pump and gun provide exceptionally fast, contamination-free color change.
6. A wide range of nozzles to meet any application need, including commonality with the Encore gun family
7. Easy serviceability for reduced maintenance and downtime
8. Advanced, engineered materials allow faster internal and external cleaning during color change

Better process control and finish quality

Nordson HDLV – or “High Density Low Velocity” technology – delivers a high concentration of powder, but using very little air. An integrated coating solution, the system includes the Encore HD gun, the Nordson HDLV dense phase pump and iControl® integrated control system to achieve the ultimate in process control.

Central to the system operation is the HDLV dense phase gun pump, which operates much differently than a traditional venturi pump. Venturi pumps use high velocity air, which – when coupled with abrasive powders and/or high powder output rates – causes them to wear over time. They also wear at different rates, requiring frequent adjustments to the gun settings to achieve consistent output. The Nordson HDLV gun pump does not use a venturi throat, which means it does not wear out.

As a result, powder output stays consistent over time. Additionally, the pump meters powder to the gun using less air to propel it – in fact, it is four times slower.

Fast contamination-free color change

When it comes to fast color change technology, Nordson has long been on the forefront of powder spray guns and recovery booths that are ultra-fast cleaning, easy to use and exceptionally efficient. Encore HD guns are perfectly suited for use with the ColorMax® fast-color-change powder coating and recovery booth systems.

Providing reclaim-to-reclaim color change in generally 5 to 10 minutes, the ColorMax system also ensures optimum application area air flow and control for maximum coating performance and efficiency in today’s lean manufacturing operations. The ColorMax® booth utilizes advanced booth canopy materials to resist powder attraction, and air-flow technology to continuously move powder off the floor and into the recovery/ reclaim system, for minimal powder-in-process and fast, easy cleaning during color change.