Nordson Encore XL Powder, Manual

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© 2021 Nordson Corporation
1607027-01
2-5 Overview
Lance Assemblies
Two, three, or four lance assemblies are attached to the lift assembly. Up to nine in-line
powder pumps can be mounted on each lance assembly. The pumps are installed in the
lance ports, and held into place with a retaining rod. If a lance pump port is not used, it is
plugged with a plug module.
1
2
POWDER
ATOMIZING AIR
FLOW AIR
IN-LINE PUMP
FLUIDIZED
Figure 2-4 Lance Assembly
1. Fluidizing latch block assembly 2. Fluidizing bars
Lift Assembly
The lift assembly uses a locking air cylinder to raise and lower the lance assemblies in
and out of the feed hoppers or powder boxes:
• If a feed hopper is selected as the powder source, the lance is lowered until it is a set
distance above the fluidizing plate, as determined by the position of a proximity sensor
on the lift cylinder.
• If a powder box is selected, the lance is lowered until the level sensor on the lance
contacts the powder, and then lowered gradually as the powder is used.
The cylinder motion and locking action are controlled by three solenoid valves that are
part of the control manifold on the roof of the feed center.
The lift cylinder has a spring-actuated locking mechanism released by air pressure. The
cylinder is locked when the air line is vented; unlocked when pressurized. The cylinder
also uses a balancing air circuit, which applies air pressure to both sides of the piston to
prevent lurching when restarting motion after a locked stop.