Security has always been a universal theme, whether we are talking about public or private places. To this end, the doors and windows segment is continuously involved in developing increasingly cutting-edge solutions to protect against unauthorised access and vandalism. Shutters are used in many public and commercial contexts, as well as in the private sphere, and there are various solutions on the market to cater for specific needs. There are different types of shutters: with zinc-plated steel or coloured elements, with tubular mesh, industrial or micro-perforated, which thanks to the “transparency” effect guarantee security, also making it possible to give them a commercial appearance and to look through into the shop window at the products.
Whichever version you choose there are a number of construction elements that it is important to get acquainted with in order to construct a fitting that will last. These elements comprise the beating heart of the shutter: the motor, the spring, the spring holder boxes and the perfect balance and equilibrium of these items in accordance with the size of the shutter. In a shutter,one of the components most subject to wear is without doubt the spring and this may depend on thefrequency with which it is used, but also on environmental conditions, in particular variations in temperature. If the cord is not straight and perfectly in line or if it becomes very heavy to pull down or even blocked, there may be a problem.
Regular C67 tempered springs are highly subject to deformation and breakage due to changes in temperature. C.S. FIMA, which has been producing accessories for shutters since 2005, has patented a system of non-tempered springs that can resist variations in temperature from between -40°C and +60°C. This makes it possible to reduce the risk of breakage, ensuring the longest possible lifetime of the fitting. Another aspect to consider is the stress that a shutter is subject to during regular opening and closing operations. This often results in the wearing of another important component, the spring holder box. Normally, this accessory is produced with a system of steel spheres which may deform in the long run because of the load they bear and threaten the correct functioning of the shutter as well as lead to direct contact between the spring holder box and the tube with the consequent cutting of same. Once again, choosing innovative materials and technical solutions can enable us to take the best construction decisions. Naysteel by C.S. FIMA is the certified spring holder box that replaces the classic sphere system with a single block of self-lubricating nylon which significantly increases its lifetime, completely eliminating the risk of cutting the tube and reducing noise levels.
This system is able to support a work cycle of over 150,000 manoeuvres without impacting on performance in any way. As producers of motors for shutters for over 30 years, we have always worked alongside manufacturers and we believe that nowadays it is more important than ever to keep up to speed with the latest products on the market in order to offer the best advice and a 360° vision of window and door fittings. Automation makes access to our businesses easier and safer, but the quality of the fitting to which these systems are applied is just as crucial. For us it is very important to raise market awareness of this issue so the product can be seen as part of a more complex system in which the choice of materials and performance levels must always be consistent. Above all, this means conceiving and designing systems on the basis of their final use, cut and modelled according to the needs of the user.
