The FP-48 is a high quality, precision built, two color,
flexographic printing press. The FP-48 is mounted on castors for portability with foot
operated floor locks to hold the press in position. When used in line with extrusion,
speed control is provided by a press-mounted balanced dancer with tension control via a
precision pneumatic regulator and bellofram cylinder. The dancer speed control may be
overridden by a panel mounted speed control to allow the press to be used off line with an
Machine control is provided by an Industrial Control Group C-128
Microprocessor programmable controller. The control panel is located for easy operator
access. Allen Bradley Bulletin 800T illuminated push-pull buttons and switches are used in
the control panel. Fountain to anilox roll pressure, lay on roll pressure, and dancer
tension are controlled by precision regulators with 3-1/2" diameter gauges. The
control enclosure has an elapsed time meter to indicate total operating time.
There is an Emergency Stop pull cord over each impression cylinder, and
an Emergency Stop push button on each corner of the press and on the control panel.
When the press is Emergency Stopped, the plate cylinders lift to
provide clearance between the plate cylinders and the anilox cylinders and the lay-on roll
lifts off the impression cylinder. This allows the bag machine to continue to pull the web
through the press and prevents damage in event of a wrap-up.
Push-pull buttons are provided on the control panel to operate the lift
motion for each plate cylinder to stop printing while maintaining registration. The lay-on
roll has a push-pull button control for opening and closing and also opens when the press
is Emergency Stopped.
The press is driven by a variable frequency drive controlling a 2 HP.
TEFC motor driving through a flange-mounted gear box. There is a Forward/Reverse Selector
Switch on the control panel and a Forward/Neutral/Reverse transmission on the gear drive
to allow for 2 colors one side or 1 color each side printing.
All gearing is 10 pitch, 14-1/2 degree pressure angle by 1" wide
face. The fountain rolls are gear driven by the anilox rolls with ratios from 1:1 to 3:1
All gears and plate cylinder sleeve bearings are automatically
lubricated by a pressure lube system with alarm and adjustable injectors for each lube
The press is equipped with oil drip catch pans to catch excess lube
Side to side registration of each plate cylinder is adjusted by a hand
crank with a 2 inch range of adjustment. Registration between plate cylinders is provided
by a handwheel controlled registration roll.
All idler rolls and the registration roll are 6" diameter
aluminum, hard anodized, ball bearing mounted, balanced, and machined to .001" TIR
The lay on roll is 5-1/4" diameter steel with a 40 durometer
neoprene rubber coating to 6" diameter, ball bearing mounted and balanced. The
impression cylinders are 6" O.D. steel, machined, balanced, and chrome plated.
All drive gearing is enclosed or guarded. An opening guard door
provides the operator access to the area between the impression cylinders for easy
thread-up and cleanup.
The ink pans and covers are fabricated from stainless steel and
electro-polished. There are two hinged access doors in each cover. The ink pans are
lowered from the fountain rolls by hand levers for easy cleaning and color change. Three
dryer tubes with adjustable width apertures are provided.
The side frames are machined from steel plate, stress relieved, and
blanchard ground to 1" with a .005" tolerance for flatness. The deck sliding
gibs are hardened steel on steel with adjustable tension hold-downs.
Deck adjustments are handwheel driven with hex drive adaptors on each
handwheel to allow use of a power drive. Clutches are provided between the plate cylinder
and color deck retraction shafts to drive both together or each independently.
The deck adjustment cross shafts have clutches to drive both sides
together or each side independently.
Each side of each color deck and each plate cylinder deck has a digital
position indicator reading in thousandths of inches.
Optional air driven or electric ink pumps, viscosity measuring
equipment, automatic alcohol metering equipment, and air heater/dryer/blower equipment can
be supplied for a complete turnkey operation.