An important novelty for the safety and manoeuvring of farm machinery comes from the ADR study centre. In the forefront for its self-steering axles, for which it has several patents, the ADR group has now revolutionised the sector with STC, its patented oleo-dynamic steering control, solving the reverse manoeuvring problem for trailers with several axles, so the operator always knows “where to put wheels”.

In the best ADR tradition, design has aimed at function and simplicity: the system is piloted by the tractor, but is only based in the trailer, so each tractor can hook it on and make it work straight away. y, with low pressure tyres. Manageable and safe. With its patented geometry, STC keeps the trailer on the road even if its directional system has gone wrong, and the user can continue its journey carefully. Like all ADR products, STC is compatible with the rest of the group’s products, from suspensions to brakes.

The really reduced distance between wheel rotation axle and articulation joint pin makes steering really easy and enables the oleo-dynamic system to work with relatively low pressures so each minimum change in direction by the tractor is transmitted to trailer wheels. This characteristic is important when reversing where the comparison with commanded self-steering is absolutely not proposable.

Furthermore, joint compactness means wide section wheels can be used. Lots of advantages, and care over safety. The special STC geometry means you can keep the trailer headed in the right direction even if the oleo-dynamic control system breaks down so the user can carry on its journey carefully.

Copyright 2009 ADR SpA