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Siemens
Siemens Milltronics MSI Belt Scale Weighing System
Model: 7MH7123-5AA
4-hour response · Pricing in SAR · Delivery across all KSA regions
Siemens Milltronics MSI Belt Scale Weighing System
The Siemens Milltronics MSI is a single-idler or dual-idler in-motion conveyor belt weighing system measuring the mass flow rate of bulk solids — including coal, limestone, iron ore, phosphate, cement clinker, grain, and sand — continuously on running conveyor belts. The MSI weighing system comprises a Milltronics weigh bridge frame with precision load cells spanning one or two conveyor idler stations, a belt speed sensor (either a tacho wheel on the belt or a tachometer on the head pulley), and a SIWAREX WC weighing integrator that computes the belt load (kg/m) from the load cell signals, combines it with the belt speed (m/s) to calculate mass flow rate (t/h), and integrates the instantaneous flow rate to produce the cumulative totalised weight (tonnes).
The SIWAREX WC integrator connects to the plant SCADA or PLC via PROFIBUS, Profinet, or Modbus RS-485, enabling real-time mass flow data to be used for process control (feed rate control to mills and crushers), production accounting (batch weighing), and custody transfer measurement at port loading and unloading facilities. The MSI's factory-developed automatic zero and span calibration procedures — using a static test weight or a calibration chain — allow accurate calibration without diverting the conveyor from production, minimising throughput interruption at continuously operating Saudi processing facilities.
In Saudi Arabia, the Milltronics MSI KSA is the standard belt weigher for limestone and raw meal feed rate measurement at Saudi Cement, YACCO, and Al Jouf Cement plants, phosphate ore weigh feed at Ma'aden and Mosaic-Saudi operations at Ras Al-Khair Industrial City, iron ore pellet feed measurement at Hadeed Jubail, and clinker weigh-feed to cement grinding mills across the Kingdom. Port bulk cargo loading and unloading facilities at Jubail, Dammam, and Jeddah use large-capacity MSI belt weighers (up to 2400 mm belt width) for vessel loading measurement and cargo billing. Grain terminal operators at Saudi ports use the MSI for OIML-certified grain custody transfer measurement during import discharge operations.
Razz Middle East supplies Milltronics MSI belt weighers with SIWAREX WC integrators, weigh bridge installation, speed sensor installation, PROFIBUS/PROFINET integration, and annual calibration services across Saudi Arabia.
Technical Specifications
Full specifications for the 7MH7123-5AA
- Accuracy
- 0.5–1.0% (OIML R50 Class 0.5)
- Belt Width
- 400–2400 mm
- Idler Span
- Single or dual idler
- Load Cells
- 2 per weigh frame (SIWAREX)
- Integrator
- SIWAREX WC
- Outputs
- 4–20 mA flow rate + pulse totaliser
- Communication
- PROFIBUS, PROFINET, Modbus RS-485
- Calibration
- Test weight or calibration chain
- Environment
- IP67 load cells and weigh frame
- Compliance
- OIML R50, CE
Key Features & Benefits
- OIML R50 Class 0.5 accuracy provides ±0.5% of total mass error over test period — meeting the legal metrology accuracy requirement for custody transfer belt weighing at Saudi port facilities and quarry output metering.
- SIWAREX WC integrator with PROFIBUS and PROFINET connectivity feeds real-time mass flow rate data directly to SIMATIC S7 PLCs and PCS 7 DCS for automated feed rate control to mills, crushers, and storage silos.
- Automatic zero and span calibration using calibration chain (test chain draped on the belt) enables calibration without stopping the conveyor, minimising production downtime at continuously operating Saudi cement and mining facilities.
- IP67 load cells and weigh bridge withstand the dusty, wet, and vibrating environments at cement plants, port terminals, and mineral processing facilities in Saudi Arabia's coastal industrial cities.
- Dual-idler configuration (MSI) provides higher accuracy than single-idler by averaging the load signal over a longer belt segment, reducing the influence of belt tracking variations on measurement accuracy.
- Pulse output provides the accumulated weight totaliser in engineering units for batch control systems at SABIC and Aramco bulk material handling facilities, directly triggering batch-complete setpoint comparators in PLC programs.
- Wide belt coverage from 400 mm to 2400 mm in a single product family covers everything from small-scale quarry output belts to the main port unloading conveyor systems at Saudi bulk import terminals.
Industrial Applications in Saudi Arabia
- Limestone and raw meal weigh-feed control to cement kiln preheaters at Saudi Cement, YACCO, and Al Jouf Cement plants, where PROFIBUS-integrated mass flow data drives the kiln feed rate PID controllers in the PCS 7 DCS.
- Phosphate ore flow measurement on main mine conveyors at Ma'aden Wa'ad Al-Shamal and Ras Al-Khair operations, where OIML R50 Class 0.5 accuracy provides the production accounting data for ore reserve depletion reporting.
- Iron ore pellet and DRI feed rate measurement to Hadeed steel plant at Jubail, where belt weigher data feeds the raw material charging controller that maintains correct charge mix ratios in the electric arc furnace.
- Port bulk cargo loading measurement at Jubail Industrial Port and Dammam commercial port, where large-diameter belt weighers on shiploading conveyors provide the custody transfer weight for vessel cargo documentation.
- Clinker feed rate measurement to cement grinding mills at Saudi cement plants, where MSI belt weigher data feeds the mill feed rate controller to maintain optimal mill loading and specific power consumption.
- Coal and pet-coke weigh-feed measurement at cement kiln firing systems, where accurate fuel feed rate control from the MSI belt weigher maintains kiln thermal input within the process optimisation window.
- Grain import discharge metering at Saudi port grain terminals, where OIML R50 certified MSI belt weighers provide the legal custody transfer measurement for imported grain cargo during vessel discharge operations.
Industrial Supplier in Saudi Arabia
Get a Quote for the Siemens Milltronics MSI Belt Scale Weighing System
We respond within 4 business hours. Send model 7MH7123-5AA for competitive pricing in SAR with delivery across Saudi Arabia and the GCC.
Frequently Asked Questions — 7MH7123-5AA
Common questions from buyers in Saudi Arabia and the GCC
What is the Siemens Milltronics MSI Belt Scale Weighing System (7MH7123-5AA) and what is it used for?
The Siemens Milltronics MSI is a single-idler or dual-idler in-motion conveyor belt weighing system measuring the mass flow rate of bulk solids — including coal, limestone, iron ore, phosphate, cement clinker, grain, and sand — continuously on running conveyor belts. The MSI weighing system comprises a Milltronics weigh bridge frame with precision load cells spanning one or two conveyor idler stations, a belt speed sensor (either a tacho wheel on the belt or a tachometer on the head pulley), and a SIWAREX WC weighing integrator that computes the belt load (kg/m) from the load cell signals, combines it with the belt speed (m/s) to calculate mass flow rate (t/h), and integrates the instantaneous flow rate to produce the cumulative totalised weight (tonnes).
Where can I buy the Siemens 7MH7123-5AA in Saudi Arabia?
Razz Middle East supplies genuine Siemens products including the Siemens Milltronics MSI Belt Scale Weighing System (7MH7123-5AA) across all regions of Saudi Arabia — Riyadh, Jeddah, Dammam, Al Khobar, Jubail, Yanbu, Mecca, and Medina. We source fast-moving items to order and can source specialist configurations. Request a quote on this page for same-day pricing.
How do I get the best price for the 7MH7123-5AA in KSA?
Click "Request Free Quote" on this page or message us the model number 7MH7123-5AA on WhatsApp. Our technical sales team responds within 4 business hours with a competitive price in SAR and a confirmed delivery lead time — with no hidden charges or handling fees.
Does Razz Middle East supply genuine Siemens products in Saudi Arabia?
Yes. Razz Middle East is an independent industrial supplier, not an appointed Siemens distributor. We source through Siemens OEM channels or through authorised Siemens distributor channels and supply 100% genuine product with full manufacturer warranty and documentation, serving the oil & gas, petrochemical, power generation, water, construction and manufacturing sectors across the Kingdom.
What is the delivery lead time for the Siemens Milltronics MSI Belt Scale Weighing System in Saudi Arabia?
Items are sourced to order and delivered duty-paid, typically 2-3 weeks, to Riyadh, Dammam, Jeddah and the Eastern Province. Project orders and non-standard configurations can take longer. Contact us with the exact model number 7MH7123-5AA to confirm the lead time for your quantity.
Can the 7MH7123-5AA be supplied for industrial projects in KSA?
Yes. Razz Middle East is an approved vendor to SABIC, Ma'aden, Sadara, Saudi Energy, ACWA Power, Safari Group and others. For project orders we provide the manufacturer's technical documentation and certificates of conformity for your vendor approval file. Contact our project team with your project specification.
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