DURO SEAL FLEXO END SEALS
Increase printing efficiency and reduce production costs up to 70%
Life cycle up to 10x longer than standard seals
Significant reduction of blade wear
High abrasion and heat resistance
Self-lubrication and reusability of the seals
Increase efficiency and reduce production costs up to 70%
Increase printing efficiency
No more unplanned downtimes due to dripping ink units or worn doctor blades. Duro Seals assist you in getting your print jobs done without downtime.
Highest print quality
Duro Seals ensure a constant moderate pressure in the chamber system even after days of production. The key to a perfect print result
Reduce production costs
Time is money, especially in packaging production. An unplanned downtime quickly causes high expenses. Duro Seals enable you to keep your ink units running smoothly and save money.
Our mission: supplying printers with what their machines and systems really need.
More efficient.
Easier.
More qualitative.
Even as a young teenager, founder and todays Tecnical Director of SDS, Karim Elouahabi, had the intention of setting a high-quality standard in the print and packaging industry as an entrepreneur during his apprenticeship in a Westgerman packaging company.
"Quality declines if it is not continuously improved."
To this day, we are still not satisfied with the status quo. Through the constant exchange and feedback loops with our customers and partners, we constantly develop and work on the best possible spare and wear parts for your printing and packaging systems.
400+
worldwide customer companies
From New Zealand to Switzerland through to North America: printing companies around the world trust our consumables.
2012
founded in the Swiss community of Pfäffikon
Working on behalf of the printing and packaging industry since 2012.
3M
Premium Partner
Exclusive distributor of Cushion-Mount-Tapes, Splice Tapes and other 3M products for the printing and packaging industry.
Duro Seal
Duro Seals make a decisive contribution to the smooth functioning of the doctor blade chamber. They ensure complete tightness with moderate blade pressure at the same time. That way you reduce downtimes and ensure time and cost savings in the print production.
Suitable for all common flexographic printing machines, e.g.
W&H Miraflex
BOBST F&K
SOMA Optima
Comexi
UTECO Onyx
ALLSTEIN Hydro
and many more available upon request.
More variants
Coated Seal
Coated Seals are the all-rounder for medium stresses. The high quality foam with excellent memory effect provides a solid sealing of the chamber. The additional black coating on the surface slows down the wear caused by the friction of the anilox, which makes the seal more durable.
Available for the following machines:
W&H Miraflex
W&H Primaflex
W&H Novoflex
KBA Flexotecnica
ALLSTEIN Hydro
and many more available upon request.
Long Life Seal
Long Life Seals are the first choice when it comes to durability and highest production speed. Special channels on the surface allow the ink to run in and keep the area between the anilox and the seal cooled. Long Life Seals enable the presses to achieve the maximum running time.
Available for the following machines:
W&H Miraflex
BOBST F&K
SOMA Optima
UTECO Onyx
Comexi
ALLSTEIN Hydro
and many more available upon request.
Rubber Seal
When it comes to special applications, our Rubber Seal completely fulfils its purpose. It seals the chamber with any special inks, varnishes and coatings. It neither shrinks nor swells, due to its resistance to water and solvents. At the same time, it absorbs bumps and vibrations and assists in achieving an optimum running time for your production machine.
Available for the following machines:
TRESU (D1, D2, D3, D4 & D5)
Gallus (Labelmaster, Labelfire, ECS 340, etc.)
Koenig & Bauer Celmacch
BOBST Masterflex
and many more available upon request.
Foam Seal
Foam Seals are the standard for normal use. The high-quality foam with excellent memory effect seals the chamber reliably and is resistant to reactions with solvent-based inks, as well as water-based inks. Our Foam Seals are a good option for a medium life.
Available for the following machines:
W&H Miraflex
SOMA Optima
Comexi
UTECO Onyx
and many more available upon request.
“I can recommend the company SDS. The products are of high quality and especially durable. The communication is quick and easy. I particularly appreciated the technical konw-how in the meetings.”
Viktor Bratkovics
Production manager
"I appreciate the consulting competence of the technicians at SDS. You quickly realize that you are dealing with people with a deep printing background. The products ordered are of high quality and the delivery is always very fast.”
Alexander Appoew
Print manager
Case studies
We solve leak issues, reduce the required blade pressure, eliminate tone value issues and optimise flexo presses for maximum performance.
24/5 operation without unnecessary downtime!
Together with one of our customers in Germany, a premium printer for food packaging, we started an optimisation project to further increase the machine running time for large print jobs.
The initial situation: full order books for the production, 24/5 operation, but after approx. 60 operating hours: machine downtime to replace worn doctor blades and leaking lateral seals.
The goal: Optimization of the chamber units, so that the press can run from Monday to Friday without downtimes.
Realization: As a specialist in chamber optimization, we know how important the quality of the lateral seals is and which effect they have on the machine efficiency.
We have taken our existing W&H Miraflex seal and developed it to another level:
In a research process, we have identified an optimal foam mixture that is completely solvent-resistant in order not to be attacked by the solvent-based ink and cleaners and it's still flexible in order to absorb the vibrations during the machine operation. On the seal we placed an improved synthetic surface with a new compound that has two main properties: high sliding characteristics and very high temperature resistance.
Implementation: With this new seal it was possible to keep the pressure on the chamber constant (low), it was not necessary to increase the pressure during operation, this ensures longer durability of the working and closing doctor blade. The seals provided a 100% tight chamber without losing a drop of ink and the surface of the seal was not damaged by the abrasion of the anilox, as the synthetic surface protects the foam, and the anilox only "runs" on the plate and doest not come into any contact with the foam.
Result: A complete week (24/5) without unnecessary downtimes due to optimized chamber units!
The picture shows a new and a used seal after a week of operation - in the white ink unit!
Saving 10.000€ per month!
One of our customers in Northern Hesse, who prints composite films with both water-based and solvent-based inks, asked us for a solution:
due to his very complex application, he was not able to use his standard consumables on his EXPERT COMPACT, a reliable Italian Flexographic printing machine, for longer than one day.
The challenge: high speeds with water-based ink, frequent color changes and cleaning intervals with aggressive agents cause that the consumables did not last long.
Sometimes a lot of ink leaked out after just a few hours. Or the blades wore out quickly because a high pressure setting was needed from the start to fully seal the chamber.
Our idea: We have developed a robust seal for his EXPERT COMPACT with very good absorbing properties, due to the heavy vibrations at high speeds. The base was a material made from a natural foam rubber that is both excellent at sealing water-based ink, and resistant to cleaning agents.
We sent the customer 10 seals for a first trial. After 3 weeks we contacted the customer as we had not received any feedback and were concerned that the seals were not working poperly.
BUT: the Print Manager only told us that he wanted to give feedback at the end of the test and since the seals still ran for 3 weeks he saw no reason to contact us... Finally we got the feedback that the seals last a total of 4 weeks in the machine!
The picture shows some used seals from the process colors and unused samples of our newly developed EXPERT COMPACT seals on the left. The savings for the company by avoiding machine downtimes amounted to about 10.000€ ‒ per month!
Conventional seals
Short lifetime and fast wear
Lower printing efficiency
High operating costs due to frequent downtimes
Higher doctor blade wear
Avoidable downtimes
Need for lubricants/grease
Performance decline due to lower heat resistance
SDS Flexo End Seals
Life cycle up to 10x longer than standard seals
Significant reduction of blade wear
High abrasion and heat resistance
Self-lubrication and reusability of the seals
Increase efficiency and reduce production costs up to 70%
Request your free test samples of our reliable SDS Flexo End Seals!
Our Goal:
Supporting Printers to peak performance.