GPS solutions for farming

Asset tracking, traceability, guidance and control
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Raven Variable rate controller

Add Variable Rate control to your KRM or similar spreader
The simple conversion for variable rate spreading on new or used spreaders.
  • Suitable for land wheel driven spreaders.
  • Replace Land wheel drive with Hydraulic motor drive
  • Choice of Console types in Cab From SCS660 - Pictured, to Envizio Pro
  • Proven in UK over 20 years - The simplest and most reliable system.
  • The conversion allows you to enter rates from the tractor cab.
  • Variable Rates can be controlled by any of the BlackBox VRT models ( VRT can be internal with Envizio Pro)
  • Ruggedly designed Hydraulic drive unit will outlast even a Bredal spreader !
  • Ask Patchwork or ask KRM to quote for a new Spreader with Patchwork On-Board..
Raven is the controller of choice for variable rate Lime and fertiliser Spreading for contractors throughout the UK.

The fast response and wide range of spreading rates means that the Raven system will reliably spread variable rate plans where many other systems struggle. The Conversion kits supplied by Patchwork include complete wiring looms and hydraulic hoses and mean that installation is possible without special workshop facilities.

Choice of Control units

Choose from a wide range of control consoles from within the Raven range depending on your requirements. The SCS660 has a simple interface and provides rapid response and accurate control. Its compatible with the Cruizer and Envizio Plus can also add automatic shutoff.

The new Envizio Pro brings the possibility to combine accurate control with GPS guidance or Autosteer plus automatic spreader control and a built in VRT controller. Available Spring 2008

These controllers are also suitable for variable rate seed systems and chemical injection systems

Please enquire for further details, The range of possibilities are endless.
© Patchwork Limited 2008 - Oaklands, Llancayo Court, Llancayo, Monmouthshire, NP15 1HY.