Intermediate Tower
The tower supports the main pipeline and ensures the hydraulic and mechanical connection between the spans.
It is motorized and enables the displacement of the machine. It also must resist to the various mechanical pressures such as the torsions due to the relief, to the stresses on the gear and to the forces between the spans.
This span-structured tower is designed with S275 galvanized steel high-quality components. The tower Otech offers an under-span clearance of 3.20 m,
perfect for the high-growing crops.
Wheels
Rims in galvanized steel fitted with valve protection.
1. Tower control unit
Highly reliable control unit equipped with an adjustable circuit breaker to protect the gear motor and an antiparasitic module to guarantee the maximum durability of the micro switches. Control linkage instainless steel and Delrin (no blocking due to oxidation is possible). Rigid connector board in galvanized steel and bonnet in injected anti-UV polyethylene tainted in the mass. Bonnet locking by stainless steel fastenings.
2. Coupling
4 mm coupling tube in S275 galvanized steel. Cardan hinge with distribution of the stresses on four fixation points. Wind proof undetachable span connection enables a big suppleness of movement and accepts gradients up to 25 %*. Junction with galvanized steel coupler to protect two low-pressure lip seals against environmental threats (UV, sandstorms, etc.).
Wheels
Rims in galvanized steel fitted with valve protection.
3. Drive train:
Centerdrive
Tropicalized motor 055 kW in 1500 tr/min with stainless steel stator. High performance (95 %). Reliable amperage, reliable energy consumption, prolonged lifetime. Watertight cabling made and tested in Otech factory.
Transmission
22 mm square transmission in galvanized steel and coupled to a cardan in aluminium.
Gearbox
Wheel reduction fitted with reversible mounting. Reduction ratio 1/50.
