Controlling Tension Transients in Metallizing and the Subsequent Converting Process
Like so many materials and processes we take for granted today, the development of metalized films came about as a consequence of research and development undertaken and employed during the Second World War. In the case of metalized films, scientists found that cut into narrow strips metalized films when dropped from an aircraft could confuse […]
New Friction Modules Eliminate Maintenance Time
The C-Series Brake Friction Module has been re-engineered to make installation easier. Simple Two-Bolt and No-Adjustment-Needed Spacer combo replaces the previous version that required adjustment. This new style is shipping with all new orders. The Dual V-Friction module brake pads are a snap to replace. No other brake pad is this easy to change out. The brake […]
Plastic Bag Production
The continuing trend that favours plastic bags and sacks at the expense of paper continues. This growth is attributable to the demand for pre-made bags as an alternative to rigid containers, and to the use of plastic bags in industrial and agricultural bag applications, such as fertilisers and seeds. Bjorn Olesen of Danarota Technic A/S, […]
Analog-Digital Tension Controllers
The proper control of web tension is especially important for maintaining good quality in coating and laminating processes. For example, in coating processes, variations in web tension can lead directly to variations in coat weight and may cause spreading problems leading to carry over onto rollers. Even variations across the web width can cause quality […]
Accurate Tension Control
Tension is due to forces pulling against each other and when applied to processing involving the moving web it is necesssary for the sake of production efficiency that these opposing forces are stabilized at a set value which is applicable to both the material and the process. Tension is an invisible force so unless the […]
Emerging Trends
Industry developments such as lighter materials, faster speeds and quality mandates place tough demands on tension system performance levels. Such demands leave little room for error and require a fine degree of tension regulation. Speaking in numerical terms, older web processing machines could perhaps live with tension inconsistencies deviating as much as 5-20% from set […]