PENTAR S.A

The mechanical back-up design uses SPIROL® Disc Springs. Under normal circumstances, the hydraulic system holds a constant pressure on Disc Springs stacked in series. If pressure fails to be maintained, the stack of Disc Springs decompresses to actuate the braking mechanism. A compression spring or wave spring is not capable of providing the force required (in the space available) to actuate the brakes. The reliability of this safety system is dependent on the consistent performance of Disc Springs. In this critical application, the Disc Spring’s performance and level of predictability improves product quality and ensures overall safety. SPIROL® Disc Springs have a high capacity to consistently store releasable mechanical energy. Visit www.SPRIOL.com to learn more!

A drive motor can also act as a generator. If the drive system is built so as to allow reverse power to flow then this power can be fed into a resistor, thus taking energy out of the system and causing whatever is driving the motor to slow down. Following to this the braking resistor converts the stop energy into heat. Electrical drive systems are being used more and more on ships, oil rigs, crane barges and offshore vessels of all types. An important benefit from using an electric drive is that reliable systems of regenerative and dynamic braking resistors are available to complement or replace traditional mechanical braking systems. The advantages of electric braking include control, reliability, mechanical simplicity, weight saving and in some cases the opportunity to make use of the regenerated braking energy. The Braking Resistor Units from Klöpper Therm are designed according to specific applications.

Paper Unwinder with a mechanical drag brake and conical clamping system, available in different sizes and versions for all types of coil reels and for all material widths Paper Recoiler, for all types of coil reels and for all material widths, with air motor or with electromotor

Lubrication of rolling and friction bearings, as well as other machine elements at medium rotating speeds or sliding speeds in a broad temperature range For example, electric motors, drives, control systems and telecommunication and navigation systems under arctic conditions, Bowden cables and brake mechanisms in aircraft, sliding parts in shock-freezing systems etc. Lubricating grease for plastic/plastic and plastic/metal pairs and elastomers For plastic sliding coatings in bridge supports and as a parting agent in plastics processing Advantages and benefits Highly effective due to optimum formula Broad temperature range with a wide range of possible uses Excellently suited for lubricating plastics and elastomers Lubricating grease resistant to ageing, especially at low temperatures