Nordson EFD 7860C-RS User manual

Introduction
The 7860C-RS radial spinner system is a precision, air-actuated spinner
device that produces a narrow radial output band ideal for coating the
interior walls of cylindrical shaped parts. Air pressure is released to the
colleted air motor to spin the radial disc and shaft assembly. During this
radial spin cycle, uid is dispensed onto the spinning disc, causing it to
be distributed in a narrow band-like pattern onto the side wall.
The spinner disc and shaft assembly have a shaft length of 70mm
(2.75"), with disc sizes ranging from 9mm (0.354"), 12mm (0.473"),
15mm(0.590"), and 19mm (0.745"). The radial spinner system is easy to
use and will operate for many millions of cycles without maintenance.
Bracket
7860C
air motor
Tip
752V-UHSS
valve
Shaft / disc
assembly
7860C-RS Radial Spinner System
Installation Guide
Electronic pdf les of Nordson EFD
manuals are also available at
nordsonefd.com

Installation
1. Mount the radial spinner bracket using
the rod provided or bolt it onto an
appropriate mounting xture. Follow
these steps to install the radial spinner
valve:
a. Slide the valve up into the
bracket opening until it bottoms
out at the actuating air tting.
Secure in place.
b. Install the special bent tip in the
rotating luer lock adapter. Make
sure the tip end is in the vertical
position.
c. Slide the air motor into the
bracket opening. Make sure
the motor collet does not make
contact at the bend of the
dispense tip.
Prior to installing this
system, read the associated
reservoir and ValveMate™
7160RA controller operating
manuals to become familiar
with the operation of all
components of the radial
spinner system.
NOTE: Refer to the
ValveMate 7160RA
controller operating
manual for air connection
instructions.
d. Insert the shaft into the collet.
Set the tip approximately
0.5mm (0.20") from the
spinning disc surface. Tip
alignment should be 2.5 mm
(0.100") away from the radial
spinner shaft.
e. Realign the valve and motor
in the bracket as needed
to achieve recommended
clearances.
2. Connect the uid feed hose to the
reservoir outlet and the valve inlet
port using the appropriate ttings
(supplied).
3. Connect the 4 mm diameter
air hose from the valve to
the 7160RA controller. The
white connector goes to the
ACTUATING AIR port. Make
sure the nozzle air is OFF and
set to 0 bar (0 psi).
NOTE: The NOZZLE AIR port
is not used for radial spinner
installations.
4. Connect the white and black
6mm diameter air hoses to
the air motor assembly: white
connects to the motor speed
control and black connects to
the F tting (actual markings
on air motor).
5. Connect the white and black
6mm diameter hoses to
the lter-regulator-lubricator
assembly. White connects to
the oil recovery bowl and black
connects to the control valve.
6. Fill the uid reservoir. After lling,
secure the cover and connect the
reservoir air pressure regulator
to the air tee using the exible
air line (supplied). Attach the
male quick-connect in the air
line to the reservoir regulator
and then attach the white
quick-connect to the air tee.
To pressurize the system, slide
the shut-off valve in the air line
toward the uid reservoir.
ow to approximately one drop
per second.
9. Adjust the air motor RPM
using the speed control knob.
Turn the speed control knob
clockwise to reduce RPM and
counterclockwise to increase
RPM.
7. Set the reservoir pressure regulator
according to uid viscosity: low for
thin uids [0.07 to 0.2 bar (1 to
3 psi)] and higher for thicker uids.
8. Set the 752V-UHSS valve (or other
appropriate valve model) stroke
control to achieve a desired ow
rate onto the spinning disc. Set the
To pressurize
To exhaust
0.5 mm
(.020”)
2.5 mm
(.100”)
NOTE: Set the tip approximately 0.5mm (0.020")
from the spinning disc surface. Tip alignment should
be 2.5mm (0.100") away from the radial spinner
shaft.
Control valve
a
6
3
5
2
1
7
4
8
e
c
bd
9
7860C-RS Radial Spinner System
2www.nordsonefd.com [email protected] 800-556-3484 Sales and service of Nordson EFD dispensing systems are available worldwide.

How the Radial Spinner System Operates
ValveMate Controller Concept
The ValveMate 7160RA radial
system controller provides
easy adjustment of valve
output for maximum end-user
convenience and efciency.
Valve open time is the primary
control of deposit size. The
7160RA puts push-button
adjustment of valve open-time
where it needs to be — at
the valve and radial spinner
assembly.
Upon initiation of the 7160RA radial
system controller ò, air pressure
is released to the air motor
assemblyùto begin spinning
the radial disc assemblyä.
Immediately following, a timed
pulse of actuating air is released
to the dispense valve ëto apply
uid onto the spinning disc. The
spinning disc causes the radial
output to sweep around to apply
an even band of uid to the inner
circumference of the cylinder ö.
When the timed actuating air from
the 7160RA controller shuts off, the
dispense valve closes, stopping
uid ow. An adjustable delay
after the dispense cycle ensures
that all uid is dispersed after the
valve closes, ensuring coating
consistency from cycle to cycle.
Refer to the ValveMate 7160RA
controller operating manual
for instructions on increasing /
decreasing the delay feature.
The controller incorporates
unique microprocessor circuitry
to provide exact time control
and interaction with the host
computer.
An initial deposit size can be
rapidly programmed by using
the 7160RA TEACH mode.
Renements can be made by
using the time setup controls.
From 7160RA lter-regulator-lubricator assembly
2
1
5
4
3
Rear panel:
Air in
Power input
Actuating air
Nozzle air
I/O Interface
Foot pedal connector
Control panel:
Setup mode controls
Mode indicators
Time, time override
Cycle / purge control
Air in digital readout
Nozzle air gauge and regulator
7860C-RS Radial Spinner System
3
www.nordsonefd.com [email protected] 800-556-3484 Sales and service of Nordson EFD dispensing systems are available worldwide.

Specifications
Size: Air motor: 10.5 cm (4.13")
Bracket: 4.7 x 9.5 cm (1.85 x 3.75")
Weight: Air motor: 90.4 g (3.2 oz)
Bracket: 94.5 g (3.3 oz)
Air consumption: <3.2 SCFM at 5.4 bar (80 psi)
Air motor housing: Black anodized aluminum
Shaft: Tool steel
Disc: Passivated Type 303 stainless steel
Air pressure required:
7160RA controller: 4.8 bar (70 psi) minimum
7860C-RS radial spinner: Variable speed control
Mounting: 5/16-24 and 1/4-20
Replacement Part Numbers
7021798: Radial spinner motor / bracket assembly
7021795: Radial spinner air motor only
7021851: Radial spinner mounting bracket
7021844: Radial spinner tip kit
7021842: 9 mm (0.354") radial spinner / disc
7021836: 12 mm (0.473") radial spinner / disc
7021838: 15 mm (0.590") radial spinner / disc
7021840: 19 mm (0.745") radial spinner / disc
7360124: Radial spinner collet nut kit
7021846: 18 ga. tip — 30 degree bend, 20 / box
7021848: 21 ga. tip — 30 degree bend, 20 / box
7021850: 23 ga. tip — 30 degree bend, 20 / box
Radial Spinner Coverage
Radial Spinner distance to inside diameter of cylinder
wall should be 0.5 mm (0.020") or more. Choose spinner
disc diameter appropriate to cylinder wall I.D.
4°
For consistent dispense valve operation and easy adjustment
of valve output, EFD recommends using the ValveMate
7160RA controller on all automatic, semi-automatic and
benchtop applications.
Contact the EFD Dispense Valve Systems Group for details.
CAUTION
Splash Hazard.
Wear face and
clothing protection.
Entanglement Hazard.
Rotating parts. Do NOT
operate with exposed
long hair, jewelry or loose
clothing. Disconnect air
supply before servicing.
Safety
7860C-RS Radial Spinner System