High-Performance Mower Conditioner BiG M 450

• Infinitely variable power transmission via wheel motors
• Reduced 1,250 engine rpm in road travel for better fuel economy and ride comfort
• Hydro-pneumatic axle suspension for high operator comfort
• Hydraulic axle height control adjusts ground clearance to conditions

Wheel motors bring the power steplessly on the ground and make BiG M 450 fantastically easy to steer and manoeuvre. The axles boast hydro-pneumatic suspension for ultimate operator comfort and hydraulic height control, so that operators can flexibly adjust the ground clearance of the machine in field work and for road travel at reduced transport height.

The hydraulic wheel motors make BiG M 450 an extremely agile machine which also manoeuvres easily in small fields. Each wheel is driven by a swashplate motor and a set of planetary gears. Unlike traditional drivelines which use universal joints, this type of ground drive is very robust and hard-wearing.

All axles on the BiG M 450 can vary their height hydraulically and have hydro-pneumatic suspension – features that offer operators ultimate ride comfort both in the field and on public roads. For example, they can lower the running gear to bring the transport height down below 4 m (13'1.5").

The maximum road speed is 40 km/h (25 mph) which is generated at 1,250 engine rpm. At the same time, engine speed is automatically controlled relative to the current ground speed and load. For example, the system reduces the engine speed when the machine is waiting at a traffic light or when it is approaching a junction, saving a great deal of fuel and reducing the load on the engine and the drives.

BiG M 450 is clad with 800/65 R32 (front) and 600/65 R28 (rear) bar-tread flotation tyres as standard, which give the machine the necessary traction and protect the turf. Flotation Trac 800/60 R 32 (front) and 600/60 R 30.5 (rear) tyres from Vredestein are also available as an option for grassland applications. This is a very robust tyre which gives very quiet running, offers a very large contact area and very soft treading on the turf.