Demco Farm Options

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Libra Cart Wireless

Libra cart

The Libra Cart hardware connects to your grain cart’s load cells and wirelessly communicates with the Libra Cart app through Bluetooth®.

It automatically detects and records every unload from your grain cart without additional sensors, providing accurate, real-time harvest data on your tablet or smartphone — no need to press any buttons or write anything down.


Weigh-Tronix 640 Monitor

Weigh Tronix

The Avery Weigh-Tronix 640 is a digital scale indicator that provides accurate and reliable weighing.





The 4500 Series HD works as an application on existing Shur-Loks on grain carts. Reliable motor* with all-metal casing and patented dual-pivoting motor mount operates heavy-duty extruded aluminum arms – the strongest on the market, with a lifetime guarantee against breakage. Super-strong tension arm opens and closes the tarp with smooth, consistent tension. Our exclusive dual-pivoting, Durabuilt™ motor mount allows for any misalignment of the roll tube without stress to the motor or arm. Arm is easily moved by 4-spiral torsion springs (heavy-duty front cable return is included with single-arm series).

Key Features

  • 4-Spiral Torsion Springs
  • Heavy-Duty Aluminum Bracket
  • Heavy-Duty Aluminum Arm
  • Cab Wiring Kit for Standard Electric Hardware
  • 90° Worm Gear Durabuilt™ Motor
  • Heavy-Duty Front Cable Return
  • ShurLinke PRO™ and ShurLink EZR™ Remote


Ergonomic pendant operates grain flow gate, auger fold, and adjustable spout and height adjust.


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