TOP DRIVE SYSTEM Introduction The TOP DRIVE SYSTEM has been developed in 1991 based on additional air spring application at transport vehicles, gaining immediate success. Application count about 300 models and over 800 versions which ranges from lightweight to heavy transport vehicles. The TOP DRIVE SYSTEM catalogue is therefore the most complete in Europe for vehicle coverage. Today over 200.000 installations has been made in Europe and in the world. The integrative air springs are especially indicated for vehicles which spend several time of their life in loaded conditions near the constructor’s indicated limit. In this situation, air springs application significantly decrease the induced rolling moment, avoid leaf spring weakening and the wearing of relative connected parts. Benefit is immediate and perceptible: the induced rolling moment is significantly reduced, vehicle stability improvement is immediate, the driver feels the control of his vehicle. The traditional leaf spring reinforcement (additional or supplementary leafs) is bound to have a short life span and not improve the vehicle like the air springs do. TOP DRIVE SYSTEM main advantage is his regulation ability, according to vehicle type and load. The performance in vibration absorption on bumpy roads is completely different between an air spring and a metallic coil spring. Even at the minimum space between the end stroke rubber pad and the axle, the vehicle is still able to react without bumps, holding safely all vehicle parts. TOP DRIVE SYSTEM is available for front and rear axles and is provided in kit for the most diffuse European commercial and industrial vehicles. Each TOP DRIVE SYSTEM kit is provided with twin “TOP DRIVE CONTROL” valve, which limit the maximum working pressure, already preassembled and airtight tested. Pneumatic system splitting allows different inflating pressure for each side and the leveling in unbalanced load situations. Installation is really simple, in most cases is not necessary any supplementary hole on chassis, no welding and other particular tools operations, allowing an easy removal process too. Major recreational vehicles manufacturers install TOP DRIVE SYSTEM integrative air suspensions as first equipment. ADVANTAGES The “TOP DRIVE SYSTEM” offers numerous advantages, such as: • greater load elasticity • less noise and greater driving comfort • greater stability and a better road-holding capacity (less rolling) • excellent reliability • simple installation • few maintenance requirements • decrease in direct stresses on basic vehicle structures • prevents lowering of the rear axle due to leaf spring fatigue • allows vehicle levelling • ensures correct positioning of the headlamps • enhances load stability during travel • allows a better distribution of weight on the different vehicle axes, thereby improving steering manoeuvres APPLICATIONS It has a wide range of possible applications, e.g.: • ambulances • minibuses • fire trucks • roadside rescue and recovery vehicles • vehicles for transporting the disabled • transport of fragile merchandise • special vehicles • recreational vehicles (motor caravans) • mobile offices and workshops • special transport vehicles I dati riportati sono indicativi e non vincolanti. ESI Italia S.r.l. si riserva la facoltà di apportare modifiche in ogni momento e senza preavviso. 10 Reported data are indicative and not binding. ESI Italia S.r.l. reserve the right to make changes at every time without notice.
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