Belt scale EBW 20-MID

Belt scale EBW 20-MID

  • Legal-for-trade belt scale with MID approval
  • Calibration approval for class 0.5/ 1 and 2
  • For flow rates from 2 to 1,000 t/h
  • For belt widths from 500 to 1,000 mm
  • Two high-precision load cells with OIML R50 approval class C3
  • Load cells with transport and overload protection
  • Frame completely painted or made of stainless steel
  • Easy installation


With control unit IT3 Beltweigher and WC 9604 for legal-for-trade applications.



Questionnaire  Data sheet


The EBW 20-MID is a legal-for-trade belt scale for two or three idlers. The longer load carrier ensures in a much higher measuring accuracy compared to single-idler belt scales.

The EBW 20-MID is used in stationary belt conveyors and for precise, legal-for-trade weighing or for the dosing of bulk materials of all kinds, e.g. chalk, brocken stones and other stone materials, coal, wood pellets and surrogate fuels, grain, animal feed and similar products. The belt scale is used in the following industries: pit and quarry industry, glass industry, metal industry, recycling industry, waste management, food and feed industry.


The belt scale EBW 20-ST has a simple mechanical design. The load carrier is designed for two or three idlers. The weighing frame is supported by two load cells and spring steels. The belt scale has a low installation height, which allows the use in belt constructions with a small interspace between upper and lower belt.

The load cells are made of stainless steel and hermetically sealed (protection IP 68). The load cells are equipped with a transport and overload protection.

As standard, the belt scale is made of angle steel profile, painted or optionally made of stainless steel.


Easy installation:

The EBW 20-SC can be installed quickly and easily. Weighing frame and load carrier are delivered fully assembled. The scales’ support spars are easily screwed upon the conveyer.


Low maintenance:

The robust construction of the belt scale requires low maintenance. It works reliably for years, as long as no external disturbance occurs (lightning strike, overload, etc.).


We recommend to comply with the measuring accuracy:

  • daily zeroing
  • regular external checking
  • annual adjustment with reference material or with test weights


MID approval:

The belt scale has in conjunction with the control unit WC 9604

  • a certificate of type examination (MID approval)

as an automatic scale for totalizing - belt scale based on OIML R50 (DIN 8132).


The continuous flow of materials on the conveyer results in a pressure load upon the weighing platform of the belt scale, which is recorded by the strain gauge load cells. At the same time, the measuring wheel running simultaneously on the lower belt and records the current belt speed.


The weight value of the material on the measuring station and the speed value of the conveyer belt combine to give the overall flow rate in tons per hour.