Description
2‐2
Part 7192568-03
E
2020 Nordson Corporation
The feed center controls are designed to accommodate two HDLV transfer
pumps: a reclaim pump to transport over-sprayed powder from the booth
recovery system to the feed center, and a optional bulk feed pump that adds
virgin powder to the system as needed.
Both transfer pumps deliver the powder to the ultrasonic sieve, where it is
conditioned before delivery to the powder spray guns.
The color change operation is semi automatic. During a color change,the HD
Hopper cycles through a number of cleaning processes. High-pressure
purge air is pulsed through the powder feed pumps, hoses, and guns to clean
them of powder. This also cleans the sieve section and hopper itself leaving
minimal cleaning from the operator. The reclaim and virgin powder transfer
pumps can be purged manually, as required.
The Spectrum HD Gen II feed center requires a remote air extraction system
that provides a constant airflow through the enclosure, preventing powder
escaping into the spray room. The typical extraction system consists of an
afterfilter assembly consisting of an exhaust fan, primary cartridge filters,
pulse valves and controls, and final filters. A rectangular duct connection is
provided at the bottom rear of the feed center enclosure.
Optional Component List
Optional components include:
S
Ultrasonic sieve screens
S
HDLV virgin powder bulk feed system
S
Weight Cell
