X-ray transmission sorter RGS-1М

X-ray sorter  RGS-1М is designed to enrich diamond material with grain size – 6 + 3mm in the diamond industry.

Principle of sorter operation is based on the difference in X-ray absorption by material with various atomic density.

The primary advantage of RGS-1М over modern X-ray luminescent sorters is the possibility to identify and recover diamonds from the material flow irrespective of their X-ray luminescence features (poor luminescent or not fluminescent).

The sorter includes a sorting machine (SM) and an automated control rack (ACR).

Technical data
Material to be processedDry, dust-free, classified (contents of main class 85% minimum)
Material grain size fraction–6 +3 mm.
Material supply and transportation systemGrain-by-grain, 2-stream, one-stage type with  supply vibrofeeder. 
Optional installation of collectors (tanks) for concentrate and tailings.
Throughput100 kg/h minimum (– 6 + 3 mm)
number of X-ray tubes
Two X-ray tubes operating on low and high energy, respectively.
mode of radiationConstant
anode voltage, anode current(60) kV max.; (50±10) mA
Detection:Detection module is intended to convert X-ray radiation to amplitude-number pulse patterns recorded by means of analog-to-digital converters of microprocessor-based control and detection controllers.
EjectionPneumatic, with compressed air, by means of solenoid-operated pneumatic valves. 16-channel stopping mechanism (8 valves per each channel). Local ejection.
Recovery rate98.5 % minimum
Yield per ejection (with maximum capacity)NA
AutomationChecking of main systems prior to start of material supply and in the course of operation (material supply is stopped if fault is detected). Sensitivity control. Failure indication. Monitoring and control from the APCS of enrichment plant.
Electric power supply1 phase; (220±22) V; (50±1) Hz
Power consumption6 kVA max.
Flowrate of potable water to cool the tubes4 l/min minimum
Average compressed air flowrate (0.4 MPa)4 m³/min
Overall dimensions (L×W×H), mass:
SM1880×750×1560 mm; 1000 kg
ACR765×550×1410 mm; 180 kg
Operation Conditions:
Ambient air temperaturefrom + 10°С to + 35°С
Relative humidity (at ambient air temperature + 25°С)SM – to 100% 
ACR – to 80%
Protection against X-raysSpecially designed construction of the sorter totally protects against the X-ray. Each unit is being tested for safety.
Dimensional drawing
Installation drawing
Process diagram