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Carbon fiber on the DELTA FORCE boom range

29 November 2016

Lower weight gives a more stable boom

Carbon fiber helps the boom in many areas, primarily due to the low weight and the stiffness of the material which is one of its most distinguished strengths. The lower weight means that the center part gets fewer strengths to be controlled when the boom must be precisely controlled above the crop on rough ground.

It is not much use to have a low weight if there is an increased number of boom movements to be “tamed” in the anti-yaw damper and the center part; this will give a deteriorated spraying result.

Innovation and experience

2 years ago, HARDI started to research in carbon fiber as material in the sprayers. There are many possibilities for using the material; for example tanks, suspensions, boom parts etc. We, of course, have to consider the manufacturing costs, and the carbon fiber must be part of the product where the low weight and the strength will be most advantageous.


The breakaway in the carbon fiber for DELTA FORCE 39 m is first step in using the new material. It will be exciting to receive the feedback from the market at Agromek.


HARDI’s carbon fiber element is designed as a three-dimensional structure where both forward and backward well as vertical movements are most minimal. Carbon fiber has a built-in dampening which is 12 times bigger than for instance steel – carbon fiber can be described as a very “dead” material without practically “natural oscillation”. The carbon fiber boom is woven and hereafter “baked” in the environment with vacuum. There will thus be no air bubbles in the construction, and the strength and weight ratio is uniquely high. The weight is approx. 4 times lower than aluminum, and the strength is considerably higher. The carbon fiber element itself needs practically no maintenance. If the breakaway kit will be damaged, a repair kit is available, and the repair can take place locally.