Belt scales

Belt scales

If you want to weigh loose material on a belt conveyor, you can use one of our constructions. It doesn’t matter what material you are willing to transport or what type of industry you represent – different variants make our products universal for most of your needs. All you have to do is send your transport system data, the material you wish to convey and the required accuracy of measurement, and we will select and propose a suitable solution.

You do not have to worry that you won’t cope with the machine construction and launching. Our engineering team will take care of installing, constructing and calibrating of the belt scale on your site. And if your conveyor is unusual and universal design cannot be used? We will design a belt scale especially for you.

Our measuring electronics allow much more than just weighing flowing material. If your application requires it, we can equip the balance with flow control functions, batch dosing or devices in the production process. For each of our weights we can issue a calibration certificate with calculated measurement uncertainty.

Offer

WPL

The WPL model is the smallest and suprisingly affordable belt scale in our offer. Due to its small size, it is particularly suitable for installation in places where it is necessary to deal with small amount of space, for example on mobile crushers. Despite the small dimensions, the design of the balance is rigid enough even for high loads, and the shielded strain gauges are not exposed to damage.

 

Specification:

  • the most affordable belt scale on the market,
  • two load cells made of aluminum with IP67 protection,
  • measurement error ± 0.5..2%,
  • the possibility of adjusting the level of rollers,
  • belt width up to 1 200 [mm],
  • maximum flow up to 4 000 [t/h].

 

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WPC1

WPC1

WPC1 is a belt scale we are offering the most to our clients. It is used in the largest number of applications, and its design allows a really high and precise accuracy. The project itself was created after analysing the dynamic requirements for weighing systems in systems characterized by very high loads. Thanks to the use of a single stainless-steel sensor, IP68 / 69K, we can minimize the risk of a potential failure. The use of telescopic arms guarantees that the scale will your conveyor perfectly.

 

Specification:

  • rigid and reliable construction based on a parallelogram flat spring frame,
  • lack of leverage and pivots,
  • measurement error below ± 0,5%,
  • the possibility of adjusting the level of rollers,
  • a wide range of belt widths: from 500 to 2 000 [mm],
  • maximum flow up to 12 000 [t/h],
  • load cell made of stainless steel with IP68 protection.

 

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WPC2

WPC2

The extension of the section on which the material is weighed usually allows for even higher accuracy. The material rests on the scale for a longer time and can be weighed more accurately. WPC2 is actually two or more WPC1 weights, so all the advantages of this design are valid also in this case.

 

Specification:

  • two or more WPC1 weights placed in series,
  • even higher accuracy: measurement error below ± 0,25%,
  • rigid and reliable construction based on a parallelogram flat spring frame,
  • lack of leverage and pivots,
  • the possibility of adjusting the level of rollers,
  • a wide range of belt widths: from 500 to 2 000 [mm],
  • maximum flow up to 12 000 [t/h],
  • laod cell made of stainless steel with IP68 protection.

 

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Control systems

Penko SGM 800

SGM800 with BLT software

The most affordable controller for measuring flow on conveyor belts and basic portion dosing. Although it is intended for installation inside the control cabinet, it has a small keyboard and a display. You can also add an analogue output or Ethernet ports, Rs232/422, Profibus, Canbus.

Penko 1020

1020 with BLT software

This model is available in two versions: a panel one and an IP65 stainless steel cover, used to measure flow on conveyor belts and basic dose dosing and flow control. It has 1 counter reset and a pulse output. It also has an Ethernet output, it can also have an analogue output or ports Rs232/422, Profibus, Canbus.

Flex 2100

Flex 2100 with BLT software

The best solution for conveyor scales is Flex 2100 (or Flex), which is equipped with a touch screen with process visualization, special software created by us in Polish and extensive communication capabilities (RS232/422, Ethernet, Profibus, Canbus). The driver enables, among other readings from sensors – speed and weight, advanced dosing functions and a preview of 3 dosing counters. The software can also be modified to control the remaining elements on the production line.

Accesories

Whrligig

Whirligig sensor

  • The most economical solution
  • Lightweight, compact design
  • Sufficient accuracy for most applications – 8 pulses per revolution
  • Installation on a passive shaft or on a separate conveyor roller
  • Possibility to use any induction sensor with a diameter of M18 or M30
  • Optionally magnetic mounting bracket
Czujnik prędkości CPW

CPW speed sensor

  • 39,79 pulses per linear meter of conveyor belt
  • Equipped with an induction sensor
  • Ideal for belts with variable speed
  • Maximum speed 3 [m/s]
  • Zinc-plated construction
  • Optional: stainless steel version
  • Optional: version for Ex zone
Rolka czujnika Whirligig

Whirligig sensor roller

  • Ready belt support roll for installing the Whirligig sensor
  • Rigid construction
  • Belt width up to 2000 [mm]
  • Self-cleaning rubber rings
  • Maximum belt speed 1,7 [m/s]
  • Zinc-plated construction
  • Bearings included

How does it work?

A typical conveyor belt scale consists of a measuring bridge placed on strain gauges, an electronic measuring device and a belt speed sensor. The strain gauges determine the weight of the material on the belt. This information, in the form of a voltage signal, is interpreted by an electronic measuring device. Together with the mass, the device also reads the speed in the form of pulses coming from the belt speed sensor. By these two measured values, the mass flow rate on the tape [kg/s, t/h] and the count increment [kg, t] are calculated.