gardening. landscaping. greendesign.

12 - 15 September 2018 // Nuremberg, Germany

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Turbo 4

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Turbo 4 professional machines represent the top-range of Gianni Ferrari collecting units and guarantee SUPERIOR PERFORMANCE UNDER ALL APPLICATIONS.


These machines have been designed and built with regard to safety and reliability in every working condition. The machine and relevant equipment have been subjected to various tests and checks provided by the EEC regulations for safety, noise, vibrations and electromagnetic emissions. Several devices have been installed on the machine to ensure maximum safety.


For maximum traction and power. Unbeatable on areas with strong slopes. The low center of gravity of theTurbo4 allows safe cutting even on the side of slopes, where competitors’ mowers could not work. The exclusive HTC™ automatic traction control allows a very sharp turning radius, providing the machine with high maneuverability. Power, collector capacity, speed as Turbo 2.

Inlet and collecting system

The intake duct connecting the front attachment to the fan is made of strong steel instead of plastic for long life. The powerful vacuum fan has a large diameter producing a high input of air at low rpm resulting in low noise level. The vacuum fan is equipped with 6 curved rotor blades that are easily changed in case of damage or wear.

Transmission Turbo 4

The double hydrostatic transmission is provided by a system composed of a variable displacement hydraulic pump with powerful drive that controls two hydraulic motors, one per axle. Each hydraulic motor is installed on a differential gear connecting two gear drives in an oil bath that transmits motion to each wheel via gear reduction system for greater torque. The system is fixed on a strong chassis manufactured of solid 20 mm thick steel. The system is extremely safe and powerful, and enables the machine to easily climb the most difficult slopes. The differential gear on the front axle is equipped with a differential lock to further improve the traction of the machine. The rear drive axle differentiates itself from traditional steering wheels axles by the absence of a steering universal joint, allowing a tighter steering angle. A further patented device that increases the steering angle comprises an automatic proportional control of the front axle. Therefore the machine can steer with a turning radius of only 70 cm. The machine has an extremely low centre of gravity enabling it to go across a slope without the fear of tipping over.

Driving position

Since this is a highly professional machine, intended for extended use during day time, particular attention has been paid to the operator’s seat and control ergonomics to give the driver maximum comfort and safety. The controls for the engine, the blade engagement and the hydraulic devices (deck lift, collector emptying and lifting) are all located near the operator’s right hand and are all easily accessible. Warning lights and level gauges are located on the steering console arm. The tilt adjustable steering arm always allows the correct drive position to be achieved by the operator and it is extremely comfortable. Access to the seat is unhindered as there are no obstacles between the steering wheel, seat and foot-platform. The power steering has its own hydraulic pump that controls a double action steering ram and also acts as a connection bar to the steering hubs. The foot-platform is mounted on isomounts and is fully adjustable to the vertical position allowing the mower deck to be safely tilted via hydraulic power to vertical. The seat is adjustable in various positions for better comfort. 3 heights, full slide, adjustable back and armrests plus weight adjustment from 50 to 130 kg. If requested is available a heated seat model.

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