On-wheel towable pivot
The 4-wheeled movable pivot is equipped with a central element on movable frame fitted with a towing bar. The towers with pivoting wheels can be lined up with the axis of the spans to enable a tractor to displace the entire machine. Thanks to this pivot, the cost price per hectare of the irrigation system gets reduced by increasing the area covered by the same structure.
The pivot point is the center of the irrigated circle. Its function is to keep the span in the parcel center. Hence, it must withstand two main forces: a traction force of the moving spans and the weight of the first span. Besides the single resistance of each element of the pivot point, the global structural resistance of the assembly is essential. For this reason, Otech uses S275 top-quality steel and a NF EN ISO 1461 galvanisation to get a tried and tested structure, composed of an electric management system in compliance with the NF EN909 February 2009 + A1.
Electric Collector
Electric collector with minimum twelve rings (25 A to 500 V) IP233 anti-UV watertight under cap, mounted on watertight ball bearing, triple reach contacts, terminal block, predisposed for additional rings and angular coder. French manufacturing on Otech concept
Central Element
As standard, coupling with the first IP233 anti-UV watertight, span relieve pressures on the upper elbow for tough grounds. Galvanised steel coupler to protect two low-pressure lip seals against environmental threats (UV, sandstorms, etc.).
