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The MS vacuum system and how it works
  
The patented metering box is the heart of the Monosem MS planter -it doesn't skip a beat. Each component of the metering system is precision engineered to ensure accurate seed singulation every time you plant. There is no plastic used in this critical part of the machine, only durable metal parts that won't warp or easily wear.

The Monosem heavy-duty stainless steel seed disc is precision made for accurate seed singulation. Unlike a cup metering system that is used for round seed, the flat surface of the Monosem stainless steel seed disc allows even the most irregular seed shape to be suctioned and gently held to the disc.

To ensure accuracy, the clear plastic control window allows for viewing of the seed against the seed disc. The vacuum is created through the turbofan, and an adjustment on the metering box lets you set the air suction to the weight of the seed being planted. As the seed disc turns, a brass ejector block assures that the seed is dropped at a consistent angle, reducing seed bounce inside the seed tube. The results are precision seed spacing every time.
  		  
The MS metering box has a rigid molded brass casting with a stainless steel seed disc that is 1mm thick and mounted on a solid agitator, making it remarkably durable. Metering boxes are equipped with self-lubricating bearings and bushings.

 single line metering double line metering
  
  

single lever adjustment
  
Single and double line vacuum distribution systems are available on the same metering box. A single lever metering adjustment is simple to use, while maintaining its dependability and precision.
Seed discs are available from: 18- 30- 36- 60- 72- 120- 180 holes, hole sizes from.5- .6- .65- .7- .8- .9- 1- 1.2- 1.5- 1.8- 2- 2.5 mm. Please consult us for special seed discs such as twin lines or hill dropping.