The WEKO powder spraying technology is employed worldwide by all significant manufacturers of offset printing presses. The current AP series sets highest standards for application efficiency, repeat accuracy and cycling of the powder application precisely for each sheet. Can this quality still be topped? The WEKO engineers answered the question in the affirmative and developed the STEP application technology. Exact cycling is the key The objective consisted in designing a powder spraying system that cycles as exactly and precisely for each sheet as an electronic signal... and that at maximum printing speeds. To achieve this goal, powder cycling hat to be brought as closely as possible to the sheet. This has been accomplished with WEKO STEP. The powder is metered exactly to the milligram into an air flow. Cycling only takes place immediately before the sheet. Nearly digital individual sheet cycling is thus possible even at maximum speeds of up to 22,000 sheets/h. The new STEP technology will be presented to the interested technical audience for the first time at the drupa 2016 as developmental study.
Paper conditioning through remoistening is an extremely effective measure of restoring the paper's original properties. The latest development of the WEKO experts – the WEKO-DigiCon – are based on the WEKO RFDi conditioning unit for high-performance printing systems working with toner, proven for quite some time. The WEKO-DigiCon is designed for the needs of high-performance inkjet printing systems and has been developed in close cooperation with the renowned digital printing machine manufacturers.
Non-contact remoistening through proven WEKO technology The special spray discs (rotors) are the core of these minimum application systems. They turn at a high speed generating a uniform stream of finest micro-droplets. Adjustable sliders regulate spray fans which border on each other seamlessly. In this manner, the WEKO DigiCon conditions the processed paper with an exactly metered liquid supply. It receives its original (positive) properties back and optimises running and stacking properties. The result are production runs free from malfunctions, less paper waste and markedly increased product quality.
WEKO is known worldwide for its non-contact application systems for liquids and powder. Originally developed for the printing and paper industry, this process is used today in the nonwoven, paper, film, tissue and textile industry as well as with the manufacturing of chipboards.
The WEKO experts offer support worldwide with the choice of WEKO Application Systems and the integration into the production process. They help customers enjoy clear benefits with utilisation and costs. Comprehensive services, such as tests at the WEKO technical centre and high WEKO service standards, complete the WEKO offering.
In addition to the headquarters near Stuttgart, WEKO maintains two production sites in Germany and Brazil, company-owned sales and service offices in Italy, the United Kingdom, the United States of America and Brazil. Furthermore, WEKO collaborates worldwide with agencies marketing the products and offering the proven WEKO service standard in addition.