Low Cost Industrial Belt Scale System

MBS Belt Scale

The Siemens MBS is a basic, modular, medium-duty belt scale providing dynamic weighing information for process indication.

The MBS is used with aggregates, sand, or minerals, animal feeds or grains, providing basic continuous in-line weighing at a minimal cost. Coupled with a BW100 integrator and TASS speed sensor, the MBS belt scale system is available for as low as $2,600.00).

With no cross bridge, this versatile unit will fit most conveyor widths and standard idlers, and product build-up is reduced.

Operating with Milltronics BW100, BW500, or SIWAREX FTC microprocessor- based integrators, the MBS provides indication of flow rate, total weight, belt load, and speed of bulk solids materials on a belt conveyor. A speed sensor monitors conveyor belt speed for input to the integrator.

MSI single idler scale

Siemens MSI is a heavy-duty, high accuracy full frame single idler belt scale used for process and load-out control, with accuracies of +/- 0.5%.  The MMI belt scale consists of two or more MSI single idler belt scales installed in series and has an accuracy of +/- 0.25%.  It is rated for NTEP approval.

Siemens MSI and MMI belt scale provides continuous in-line weighing on a variety of products in primary and secondary industries. It is proven in a wide range of tough applications from extraction (in mines, quarries and pits), to power generation, iron and steel, food processing and chemicals. The MSI is suitable for monitoring such diverse products as sand, flour, coal.

MMI multiple idler scale

The MSI's patented use of parallelogram-style load cells results in fast reaction to vertical forces, ensuring instant response to product loading. This enables it to provide outstanding accuracy and repeatability even with uneven loading and fast belt speeds.

Operating with Siemens BW100, BW500, or SIWAREX FTC microprocessor-based integrators, the MSI provides indication of flow rate, totalized weight, belt load, and belt speed of bulk solid materials.

Siemens MSI belt scale installation video

Download MSI-MMI datasheet 

Calibration Procedure for BW500 Controller 

If you're about to work on a Siemens BW500 controller, you may want to view the following video.  This 7 minute video will step you through a basic setup from start to finish.

Choose your Speed Sensor 

RBSS speed sensor

Siemens RBSS is a high resolution, wheel-driven return belt speed sensor. Easily installed close to the belt scale assembly, the RBSS provides a signal generated as the wheel on the sensor rotates on the return belt. To secure this cost-effective unit in place, position a cross bar between stringers - either just before or after a return belt idler, or use the optional mounting bracket. The weight of the RBSS ensures positive rotation of the wheel in the middle of the return belt, and pulses from the magnetic sensor are generated by the rotation of the 60 toothed speed sprocket driven by the wheel.

WS300 speed sensor

SITRANS WS300 is a low to high resolution shaft-driven speed sensor. At only 1.22 kg (2.68 lbs), it is one of the lightest and most durable units ever developed for monitoring conveyor belt speed. With its rugged cast aluminum housing, it is suitable for outdoor installation, and its low weight prolongs bearing life.

It is directly coupled to a rotating tail or bend pulley shaft to ensure accurate belt-travel readout, eliminating problems caused by belt slippage or material build-up. The WS300 converts shaft rotation into a pulse train of 32, 256, 1000, or 2000 pulses per revolution using a high precision rotary optical encoder. The digital signal is transmitted as speed input to any Siemens integrator for calculation of belt speed, flow rate and totalized weight.