IWN GmbH & Co. KG: Agricultural technology

Minimise erosion, protect crops: intelligent systems for agricultural technology.

Agriculture worldwide faces complex challenges. In 2050, it will have to feed around 10 billion people and produce energy crops and biomass for industry.

At the same time, environmental impacts from agriculture are to be reduced: Soil loss due to increasing erosion and cultivation must be minimised through alternative strategies. Mastering these problems of the coming years, and providing farms with an economically sound basis for the upcoming structural change, are important concerns of IWN.

IWN's agricultural technology systems are designed with this philosophy in mind. They offer advantages for the environment and the farmer. Our pulse-width modulated field sprayer valves VariQspray and VariQspray pro enable the precise, economical, and therefore environmentally friendly application of crop protection agents. The VariQtire tyre pressure control system ensures soil-friendly and fuel-saving driving characteristics of agricultural machinery. The VariQselect cross hoe drive provides chemical-free, purely mechanical yet thorough weed control.

IWN implements individual components and assemblies for agricultural machinery. From vehicles to agricultural equipment, we cover all areas and produce custom-fit solutions for our customers in a wide range of materials.

Product examples

Soil-protecting, erosion-reducing technologies.

Less wear and longer service life, reducing the annual investment required for repairs and system replacement.

Easy installation thanks to IWN Plug and Play systems.

Experience IWN technology in action

PWM switching valve VariQspray for field sprayers.

The pulse-width modulated switching valve VariQspray has very short switching times (< 20ms). The LED status display on each valve enables simplified troubleshooting, e.g., in the event of a CAN error. Shakehand and CAN bus wiring: the addressing of the individual valves on the spray bar is automated, so that the operator can carry out a valve exchange with little effort. Easy integration into the ISOBUS system. A simple wiring harness enables short installation or assembly times. It can be used on all ARAC-compatible nozzle stands, as a replacement for the drip safety device. The electrical connector is not located directly on the valve, the contacting can be placed in the boom protected from environmental influences. The switching valve is compatible with the VariyQspray pro sensor valve.

The entire system is excellently suited for retrofitting. The valve is CE-homologated.

Illustration

Tyre pressure control system VariQtire

The use of tyre pressure control systems to adjust and control tyre pressure has no alternative in agriculture. Reduced tyre pressure in the field ensures improved soil protection with less compaction, resulting in a good yield. The ideal tyre pressure in the field minimises slippage. This increases the tractive power of agricultural machinery by 15%. At the same time, diesel consumption is reduced by 10% and CO2 emissions are reduced. For driving on the road, the tyre pressure can be increased with IWN VariQtire. The reduced contact area reduces rolling resistance. The agricultural machine consumes 10% less diesel and the tyres last up to three years longer. The steering and braking ability of the tractor units - in other words, road safety - is increased.

The heart of the IWN VariQtire, the rotating union, is mounted directly on the bolt of the tyre with an adapter between the rim and the axle. Thanks to its simple design, the tyre pressure control system can be retrofitted in a noticeably short time and is ready for immediate use.

Illustration

PWM sensor valve VariQspray pro for field sprayers

The pulse width modulated sensor valve VariQspray pro optimises the environmentally friendly and efficient application of spraying agents. Further advantages of the VariQspray pro PWM sensor valve from IWN: Integrated status and clogging monitoring. Short installation and assembly times. The IWN sensor valve is normally open from 1bar. The fluid flow supports the opening movement, and a low switching power is required for the closing movement due to the small solenoid travel. Integrated drip protection in all operating states. Emergency operation possible in case of system failure. Short switching times (<10ms). Low power consumption (<200mA at 50% PWM operation). Working pressure up to 8 bar. Good cross distribution of valves among each other.

With clogging monitoring. Designed for spot operation. Different application rates per individual valve can be set in spot operation. Integrated flow rate controller, resulting in flow rate recording for each individual valve, proof of application rate is possible.

Status display via a multi-coloured LED on each valve, simplified troubleshooting, e.g., in the event of a blocked nozzle. Shakehand, CAB bus wiring. Addressing of the individual valves on the spray bar is automated, so that the operator can replace valves with little effort. Each valve has its own intelligence. Simple integration into the ISOBUS system. Short installation or assembly times. Can be used on all ARAC-compatible nozzle trunks. The entire system is excellently suited for retrofitting. The valve is CE homologated.

Illustration

VariQselect cross-hoe drive for hoeing machines and hoeing robots

Weed control with soil closure interrupted by hoeing. The capillary action of the weeds is interrupted and the plant dies. Thanks to an integrated camera, the system recognises the size of the crop and automatically adjusts the gripper movements and the travel speed so as not to damage or dirty the plant.

We offer the cross-hoe drive as a hydraulic and electric version. Both models are available as applications for agricultural machinery and for hoeing robots.