Modular Single Idler Beltweigher Model MBS

Australian designed from more than 12 years of experience in the design and application of belt weighers.

For simple control applications we offer the single idler MBSX.  The MBSX features two stainless steel double ended shear beams mounted in a simple stringer mounted assembly.  The unit is shipped complete with all mounting bolts, cable junction box and features in built speed sensor option.  The units are stocked at our works and can be dispatched within 24 hrs, with shipping weight less than 25kg.

The Modular Belt weigher system offers a common solution for single idler weighers to highly accurate multi idler weighers.  The modular design allows a common weigher design which suits a wide range of conveyor widths and accuracy requirements and should the requirements change, the weigher can be easily relocated or reconfigured.

The MB series feature a fully floating platform that is restrained against the movement of the conveyor belt by a system of parallel stainless steel leaf springs with require no routine maintenance or adjustment.  The unit features a stainless steel load cell with overload protection mounted under the weigher, protected from falling debris material build up.  The design allows the simple addition of calibration weights, both manually applied to the weigher and stored in convenient test weight receptors, or, for the test weights exceeding 25kg, the calibration weight is applied via lever arm actuation.  As most gantry conveyors only have access walkways on one side, the calibration weigh systems, manual or lever arm only require access from one side.

To ensure the correct application of all our belt weighers please refer to our Application and Installation recommendations for single and multi idlers belt weighers,  [NEEDS UPDATING] TCM0002GB, our contact us to arrange one of our engineers to review your specific application.

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Standard Models

MBS.1 single load cell with dual flexure design for belt widths 500mm to 1500mm. MBS.2 dual load cell four flexure design suitable for belt widths 1600mm to 2500mm.

Custom designs to suit non standard conveyor stringers, idler spacing and idler dimensions are also available on request. Accuracy quoted is based on maximum belt speed of 5m/s and is subject to confirmation by formal quotation. Belt weighers should be installed in accordance with the operating and installation manuals. DImensions and specifications are subject to change without notice.

Specifications

Features

  • Highly accurate, proven and rugged design
  • Fully floating weigh carriage for simple calibration
  • Cost effective modular design
  • Dual load cell configuration for belts >1600mm
  • Integrated test weight receptors or optional lever arm operated stored in place test weights

Application

Belt Weighers are used for the continuous acquisition of flow rates and totalised amounts. They are especially designed for integration into belt conveyors and enable accuracies of up to ± 1%. They can be employed for a variety of tasks:

  • Throughput and consumption measurement of production rates in plants
  • Accountability of received and shipped amounts
  • Maximum or minimum load limit alarms
  • Batching, in loading stations
  • Pre-feeder control

The study design ensures a high degree of reliability and availability.

Construction

The standard belt weigher comprises:

  • Fully floating weighing platforms
  • Overload-protected stainless steel load cell(s) of IP65 construction
  • IP65 cable junction box in painted mild steel
  • IP65 Tail drum speed sensor
  • Mounting and adjusting bolts

Options

  • Weigh quality idler sets with screw adjustment (for precise idler alignment, ± 0.2mm)
  • IP65 cable junction box in 316 stainless steel
  • Friction jockey wheel running on return belt

Operating Principle

The belt weigher comprises load cells that measure the load on the weigh length while a speed transducer acquires the belt speed. The controller calculates both the instantaneous load and the totalised amount. The MBS features a single centrally mounted load cell with maintenance free spring flexure arrangement for belt widths under 1500mm and two flexure assemblies with load cells for the wide belts to account for the large side forces. The modular design also results in a lighter construction better suited to the working range of the load cells.