Profit from our more than 40 years of expierence and know-how in process optimization for Printing, Coating and Finishing Solutions for roll products.
What kinds of ink pumps are used in the printing industry?
Graymills continues to offers the widest range of ink pumps
– centrifugal, peristaltic and double diaphragm.
Whether you are
wide-web, mid-web, narrow web, envelope or corrugated, you’ll find a
pump or total system that fits your needs. Pumping from a 1, 2, 5, 10,
20, 30 or 55 gallon container – Graymills has the right length, lid and
container (metric lengths and lids are also available.)
What is a peristaltic pump?
Also known as a “tube” pump, the peristaltic pump utilizes a
flexible tube which passes through a head and is squeezed by two
rollers that push the ink to the print deck. These pumps are excellent
for fast color changes for low to high viscosity, UV and EB ink.
What is a centrifugal pump?
This industry workhorse is low maintenance, takes a lot of
abuse and delivers ink in a non-pulsating flow. Graymills centrifugal
models provide in-tank circulation to keep the material in the tank
blended.
What is a double diaphragm pump?
These air-driven pumps operate by the movement of two
flexible diaphragms which move back and forth, alternately filling and
emptying two chambers. As each chamber is emptied, the ink is pushed
toward the print deck. Good for corrugated bottom printers.
Graymills peristaltic or “tube” pumps are engineered specifically for
flexo and gravure printing applications and have received U.S. Patent
number 5,630,711.
Graymills peristaltic pumps easily accommodate a wide
variety of fluids form inks and coatings to adhesives – water, solvent,
and UV/EB.
Thee innovative design features are especially valuable in
the pressroom when short runs require frequent changeover and quick
turnaround.
What are the key features of a peristaltic pump?
All Graymills peristaltic pumps feature a high output gear motor
which combines variable speed and reversibility with essential torque.
The steel pump housing, which protects the pump against splashing and
damage, has a baked on hybrid powder coating for a long lasting durable
finish.
Three swivel lock fasteners quickly release the pump head cover,
without tools or loose parts, facilitating a quick tube change. The
Graymills head design allows the tube to run “straight-thru” from the
bucket to the print deck, eliminating “pinch points” where kinks form
that slow the flow and weaken the tube. Dual roller technology combines
just two rollers with a longer compression cycle to provide greater flow
with fewer rotations.
This results in lower friction, reduced tube
fatigue and less flow pulsation.
PPS Ink Pump
For narrow web flexo and rotary screen applications, and light to heavy
viscosity inks, coatings, and adhesives (including UV/EB), requiring
flow rates of 1.5 GPM or less.
If flow requirements are above 1 GPM,
consider model PPL for slower running speed and longer tube life.
Available with electric gear motor with electronic variable speed
control (115/230 VAC) 50/60 Hz electric gear motor or variable speed air
gear motor (28 CFM@80psig/792.9 LPM @ 5.4 bar).
Optional “Quick Change” removable head Model PQS.
Pump head/tube
changes are accomplished in seconds without tools. Simply pull the
lock-pin, remove the used head, and replace with another head loaded
with clean tube. PQS models include all of the features of the standard
PPS models.
“Quick Change” heads can be retrofit to Graymills
peristaltic pumps made since January 2005.
PPL Ink Pumps
For mid to wide web flexo, gravure, and rotary screen applications and
light to heavy viscosity inks, coatings and adhesives (including UV/EB),
requiring flow rates of 4.5 GPM or less.
Available with electric gear
motor with electronic variable speed control (115/230 VAC) 50/60 Hz or
ATEX electric gear motor with variable speed control (230/460 VAC, 3 Ph)
50/60 Hz.
Optional “Quick Change” removable head Model PQL.
Pump head/tube changes
are accomplished in seconds without tools. Simply pull the lock-pin,
remove the used head, and replace with another head loaded with clean
tube.
PQL models include all of the features of the standard PPL models.
“Quick Change” heads can be retrofit to Graymills peristaltic pumps
made since January 2005.
For applications requiring controlled flow rates from a trickle to 150 litres per minute.
These pumps operate by the movement of two flexible diaphragms which
move back and forth, alternately filling and emptying two chambers.
Flow
is controlled with the air inlet valve, which then determines pump
speed.
These pumps operate by the movement of two flexible diaphragms which
move back and forth, alternately filling and emptying two chambers. Flow
is controlled with the air inlet valve, which then determines pump
speed. A variety of applications are possible because the pump’s inlets
and outlets can be configured in different ways, such as “one-in
one-out”, “1-to-1”, "two-in two-out”, or “2-to-2”.
In the 1–to-1 option,
one color is sent to the deck.
In the “ 2-to-2” configuration, you can
deliver one material and also draw it back, or deliver two inks to two
different decks.
Diaphragm pumps do have a pulsating flow and are best
use with a Graymills surge suppressor/filter.
SPECIFICALLY DEVELOPED TO HANDLE FLEXO AND GRAVURE INKS, COATINGS, VARNISHES, AND ADHESIVES
1.
Diaphragm pump inlets and outlets can be configured to meet the pumping
requirements from bottom-printing corrugated lines to flexo and gravure
presses.
A variety of corrosion resistant materials permits use
with water, alcohol, and solvent-based (compatible with polypropylene)
inks and coatings.
2. The unique “slide valve” design helps prevent stalling even when running at low speeds
3. Pump is designed for easy maintenance with a minimal amount of parts.
The air valve assembly is externally serviceable, no need to remove pump from press.
4. For applications requiring controlled flow rates up to 40 gallons per minute.
5. Properly installed and maintained air-powered diaphragm pumps are inherently explosion proof.
6. No air line lubrication is necessary.
7.
Self-priming with the ability to pump liquids containing small solids.
Optional duckbill valves on 1/2” pumps allow fibrous materials to pass.
8. Optional air-powered mixer is recommended for in-tank agitation.
When do you need a filter in printing?
Graymills Superflo® filters are specially designed for flexographic
and gravure ink systems, providing effective filtration to eliminate
quality problems from contaminants that can also damage costly anilox
rolls.
Sizes for all printing applications.
Filters are available
standard (models HFLT/HFST/HFNT) or as surge suppressors (models
DDPSFST/DDPSFNT).
How does a Superflo filter work?
Superflo® ink filters are designed to overcome the typical pressure
drop and reduced ink flow due to clogging that occurs with ordinary
filters. A permanent magnet (optional rare earth megaMAG available)
suspended over the intake port traps ferrous particles which find their
way into the ink and diffuses the flow outward into the filter screen
flutes. Filtered material is trapped on the inside of the
removable/reusable stainless steel filter cartridge.
How do you clean a Superflo filter?
To clean, just remove the cartridge. All contaminants come out with
it. Graymills Superflo® filters are self-draining – no wasted ink or
messy leftovers.
How do I select the Superflo cartridge I need for my printing application?
Stainless steel filter cartridges are available in four different mesh screens recommended for the following applications:
Corrugated printing: 30 mesh (590 micron)
Line printing: 60 mesh (250 micron) or 100 mesh (149 micron)
Process printing: 60 mesh (250 micron) or 100 mesh (149 micron)
Varnishes, coatings, adhesives: 150 mesh (99 micron)
Passion and experience are our success factors!
Delpro Limited was formed in 1975 to design and manufacture equipment for the converting, packaging and printing industries. Since that time, a visionary team of innovators and problem solvers, the company was determined to create the world’s best. Applications include machinery for adhesive labels, hot stamping foil, holographic coating and pressure sensitive material processing.
Delpro Limited is a trusted world leader in the design and manufacture of carbon
fibre chambered doctor blade systems, with more than 1,000 successful
installations worldwide.
A visionary team of innovators and problem
solvers, the company was determined to create the world’s best anilox
products combining its in-depth knowledge of the flexo industry with its
design and engineering expertise.
Delpro designs and manufactures a specialist range of decks for the flexographic printing industry including wide web, high speed lines for tissue print processes and adhesive applications, high resolution cantilevered flexo units for adhesive label-stock coating operations, and single colour flexo decks for specialist in-line applications.
We can also provide on your demand our "Servoline" which is a unique flexographic printer that
registers into any pre-printed web to provide consistent register
control on virtually any material including extensible lightweight
films.
Servoline is built and specified to order and can either be
installed in-line with an existing print process, or off line between
two winders.
Retrofited into many of the world’s most productive flexo printers, the Delpro Ecoflex chamber is the original woven carbon fiber doctor blade chamber system for all flexoprinting applications.
As with all Delpro equipment, specific needs can be met with Delpro engineers working in partnership with our customer to establish the most appropriate and cost-effective solution.
From the beginning, it was recognised that no two
production lines were the same and that end users would be best served
by providing specific answers to specific problems. In answering this
need, Delpro has gained an enviable reputation in the supply of
custom-designed converting, packaging and printing machinery and in the
development of specialised process equipment.
The combination of the latest 3D modelling, CAD technology and
experience of our designers ensures that exacting requirements are fully
translated to provide the optimum specification and design.
Respected Throughout the World
Based in the United Kingdom, Esterlam
are golbal leaders providing clear solutions for today's demanding
flexo, gravure and screen applications.
Doctor Blades can be used to
print/coat paper, films such as PET, BOPP, PVC, etc, and foils used in
packaging, labelling, publication, corrugated products and displays,
metal decoration and printed electronics.
We are extremely proud to
have developed the original synthetic Doctor Blades over 30 years ago.
We are the past, we are the present and we are the future.
Clear Proven Results
Use Esterlam's superior Doctor Blades
and you'll quickly see why our products are world leaders. As specialist
manufacturers, Esterlam's fully researched and manufactured Doctor
Blades are in a class of their own - nothing even comes close. Our range
has been consistently proven to not only improve and increase
productivity, but also deliver a safer working environment.
The Leading Edge
From our pioneering synthetic blades
of the 1970's to the advanced proprietary compounds and modern
production techniques employed today, Esterlam's name is synonymous with
the industry's leading edge developments.
Why we're proud to be
different:
Less dot gain
Longer blade life
Improved safety
Less abrasive
Lower blade pressures
Instant start-up
Direct replacement for steel
Esterlam's knowledge, expertise and technology are second to none
We guarantee that the quality of
performance you demand is not only matched but exceeded. We are more
than just Doctor Blades - we are the future of Doctor Blades.
Defining The Future
OF DOCTOR BLADE TECHNOLOGY
The
founders of Esterlam, Don and Joy Hailey, innovated and created the
world’s first synthetic laminate Doctor Blade in the early 1970’s.
Consquently Esterlam has over 45 years experience in doctor blade
innovation and design. Esterlams product range has also grown to include
every aspect you need to improve printing and coating processes to help
expand your potential markets and to improve operator safety.
Working closely with Printing Technology Wache, major corporations
and OEM's worldwide, Esterlam R&D is continually utilizing the
latest developments in high tech engineering materials to set new
product and performance standards in today's doctor blade industry.
Esterlam Doctor Blades serve all primary market segments.
Packaging (Wide & Mid Web)
Labels (Narrow Web)
Coating & Laminating
Corrugated
Use Esterlam’s superior Doctor Blades and you’ll quickly see why our products are world leaders.
As specialist manufacturers Esterlam’s fully researched and manufactured doctor blades are in a class of their own – nothing comes close.
Our range has been consistently proven to not only improve and increase
productivity, but also deliver a safer working environment.
We fix problems in full surface gravure printing and coating:
In combination with the right doctor blade setup, many printing problems such as toning, ink breaks, ink extractors, missing dots, chatter marks, ink strips and cylinder wear can be avoided.
We fix problems in flexo printing:
Thanks to our more than 40 years of experience and know-how, many problems such as ink spitting, back doctoring, scorelines, dust formation, streaking, ghosting effect,
bleeding, halo effect and anilox roller wear can be avoided in open and closed doctor blade systems.