Overload protection

Hydraulic overload protection

The hydraulic overload protection is basically a hydraulic cylinder with a directly connected, nitrogen-filled hydraulic accumulator on each pair of plough bodies. When triggered, the plough body pushes a piston into the accumulator via the hydraulic cylinder. The gas is compressed and automatically returns the body to its initial position after passing the obstacle. A choice can be made between the standard hydraulic protection with decentralised adjustment or the optional protection with central adjustment for convenient and quick adjustment of the release pressure of all bodies.

The benefits

  • Simple adaptation of the release force
  • Smooth and material protecting operation
  • Exchangeable ball joints and sockets
  • As standard, with additional shear bolt
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It's better to bend than to break

The pressure acting on the plough bodies is determined by many different factors. The correct release pressure is of great importance so as to ensure that the body sits firmly in the ground, but no stones are ploughed up. This can be comfortably set with the hydraulic overload protection. Unlike some other manufacturers, the release pressure decreases as the lift height increases. A gentle return of the body into the ground without damage can thus be ensured.

  1. Release force (kg)
  2. Pretensioned: 200 bar centrally
  3. max.
  4. min.
  5. Lift height (mm)
  7. Other makes

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Mechanical overload protection using shear bolts

Shear bolts are the tried and tested standard solution for this system. Under load, the shear bolt snaps off at the predetermined breaking point and the plough body gives way to the obstacle by swivelling upwards. The high release forces of the shear bolt enable use even in heavy and hard soils.

The benefits

  • 6,200 kg shear force
  • Exact shearing via the double-cut, hardened flange plates
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