DRK-XNR400B Melt Flow Index (MFR & MVR)

Overview

DRK-XNR400B Melt Flow Index is an instrument used to measure the Melt Mass-Flow Rate (MFR, unit: g/10min) and Melt Volume-Flow Rate (MVR, unit: cm³/10min) of thermoplastic plastics. This instrument complies with the requirements of the JB/T5456 standard and is applicable to standards such as GB/T3682, ISO1133, and ASTMD1238. It is widely used for the determination of the melt index values of plastics.

Technical Parameters

• Measurement Methods: Two methods, MFR & MVR
• Constant Temperature Range: Room temperature ~ 400°C
• Temperature Accuracy: ±0.2°C
• Temperature Resolution: 0.1°C
• Displacement Range: 0.01 – 50mm
• Displacement Resolution: 0.01mm
• Timing Range: 0.1 – 999 seconds
• Timing Accuracy: 0.1 second
• Cutting Methods: Three cutting methods, automatic, manual, and time-controlled
• Display Method: Liquid crystal display
• Printing Function: Equipped with a printer to print test reports
• Extrusion Discharge Part
  • Discharge Port Diameter: Φ2.095±0.005 mm
  • Discharge Port Length: 8.000±0.025 mm
  • Loading Barrel Diameter: Φ9.550±0.025 mm
  • Loading Barrel Length: 152±0.1 mm
  • Piston Rod Head Diameter: 9.475±0.015 mm
  • Piston Rod Head Length: 6.350±0.100 mm
• Standard Test Loads (Eight Levels in Total)Power Supply Voltage: 220V±10%, 50Hz
  • Level 1: 0.325 kg = (piston rod + weight tray + heat insulation sleeve + No.1 weight body) = 3.187 N
  • Level 2: 1.200 kg = (0.325 + No.2 0.875 weight) = 11.77 N
  • Level 3: 2.160 kg = (0.325 + No.3 1.835 weight) = 21.18 N
  • Level 4: 3.800 kg = (0.325 + No.4 3.475 weight) = 37.26 N
  • Level 5: 5.000 kg = (0.325 + No.5 4.675 weight) = 49.03 N
  • Level 6: 10.000 kg = (0.325 + No.5 4.675 weight + No.6 5.000 weight) = 98.07 N
  • Level 7: 12.500 kg = (0.325 + No.5 4.675 weight + No.6 5.000 + No.7 2.500 weight) = 122.58 N
  • Level 8: 21.600 kg = (0.325 + No.2 0.875 weight + No.3 1.835 + No.4 3.475 + No.5 4.675 + No.6 5.000 + No.7 2.500 + No.8 2.915 weight) = 211.82 N
  • Relative Error of Test Load: ≤0.5%
• Operating Environment Conditions: Ambient temperature is 10°C – 40°C; relative ambient humidity is 30% – 80%; there are no corrosive media in the surroundings. It should be correctly installed on a stable foundation and adjusted to be horizontal. There is no strong air convection, and there is no vibration or strong magnetic field interference in the surroundings.

Configuration

• Main Machine: 1 unit
• Weights: 8 pieces
• Spirit Level: 1 piece
• Die: 1 piece
• Die Cleaning Rod: 1 piece
• Barrel Cleaning Rod: 1 piece
• Loading Rod: 1 piece
• Hopper: 1 piece
• Sampling Tray: 1 piece
• Manual Knob: 1 piece
• Instruction Manual, Packing List, and Certificate of Conformity: 1 set