Flat strips - Import export

Constant Force Springs are manufactured from flat strip material and spooled to a specific curvature matching the needed pull force. There is practically no limit on extension speed and acceleration. The springs can be fitted in a number of ways and extended partly or completely.

Clock Springs – also called hair springs – is a torsion spring that is optimum for installation spaces that are limited axially, but with more space radially. They are made from strip material or flat rolled wire that is wound in a flat, spiral shape.

We recommend against turning stacked coils upright on the stack. The first choice for the raising of packages delivered in a horizontal position with split straps is therefore always a coil turning seat. However, there is not always a fixed installation for raising narrow coils. The secutex splitband turning strap has two different attachment ends. One end loop of the secutex lifting strap is flat, and can be easily threaded through the gap between the split bands. The flat end loop can then be easily hooked into the forged Cshackle. The protective sleeve is positioned against the “sharp edges“ of the coil. During lifting, the strap moves freely through the protective sleeve while the latter remains motionless against the load. There is no movement, and therefore no wearing against the “sharp edges“. The solution An end loop of secutex lifting slings for slit strips is flat and can easily be pushed into the gap between the slit strips.

Flat Strips for covering the joint between the window frame and wall, for use in drywall construction, interior fittings for wall connection. With adhesive tape cover on the interior for adhesive tape. Acrylate foam tape grade, 1 mm thickness, weather and ageing-resistant, permanently elastic. Coated with Renolit MBAS on request.

Flat Strips with lip for covering the joint between the window frame and wall, for use in drywall construction, interior fittings for connection to the wall. With soft lip extending on to the wall and adhesive tape cover for the adhesive tape. Acrylate foam tape grade, 1 mm thickness, weather and ageing-resistant, permanently elastic. Can also be supplied coated with Renolit MBAS wood and single-colour decorative finish. Decorative wood profiles with soft lip in matching colour.

The BFI shapemeter rolls that we produce under licence from the VDEh-Betriebsforschungsinstitut (BFI) have a solid roll body with a homogeneous steel surface. They are normally installed instead of the existing deflector rolls. For the measurement of wedge-shaped strip, Vollmer offers a special solution that is also based on the BFI patent. It ensures that the flatness of the strips is measured correctly even though transversal stresses are created in the strip during coiling. Individual adaptation With individually manufactured diameters between 200 and 500 mm it is possible to precisely replace the deflector rolls in practically all mills. The outer surface of the roll body is absolutely homogeneous and can be reground on all standard roll grinding machines. The width of the measuring zones can be freely selected above 17 mm. The number of measuring zones that the roll should have is determined individually.

Renolit MBAS and Cova film, weather and ageing-resistant, wood and single-colour decorative finishes, glazing bars – black sealing lip, flat strips – coloured sealing lip. Call to check stock availability

Efficiency thanks to flat strip The use of flatness measurement alone without control already achieves a noticeable increase in productivity because strip breaks can be effectively prevented or the mill can be operated at the maximum possible speed for the particular unflatness. If the mill has the necessary adjusting elements, the Automatic Flatness Control (AFC) results in an effective improvement in quality. Control results of ± 4 I-units referred to the respective nominal curve are realistic. With our detailed know-how of the interplay between measurement, control and rolling mill we are on of the few manufacturers able to supply complete control systems for the strip shape – from the sensor through to the control of the adjusting elements From the pivoting of the rolls through to the combination of pivoting, bending, shifting of the intermediate rolls and zone cooling and far more – we have a command of the whole spectrum of shape control.