YBCH-800 Auto Chemistry Analyzer


The overhead electronic stirrer use the numerical control touch type stepless speed governor, which is convenient to display the running speed with digital screen, which makes the machine more safe and reliable. Advanced technology, low noise, mechanical deceleration structure, small size, large output, large torque, suitable for scientific research, colleges, chemical, pharmaceutical, medical units, etc.


  • Speed range 30-2200rpm, constant speed, high and low speed accurately controllable;
  • Performance: DC brushless motor, continuous and stable operation for a long time, outstanding performance;
  • Safety protection:including overload protection and motor protection;
  • Overload, short circuit and abnormal speed, automatically cut off the circuit and alarm to ensure safe operation;
  • Prevent sample overflow: Smooth start, effectively prevent sample overflow;
  • Enclosed shell: The enclosed shell prevents liquid from splashing into the internal corrosion circuit of the machine, ensuring safe operation. There is a stir bar penetration hole, and the stir bar is easy to replace. It is not necessary to move the stirring head up and down;
  • Other options:RS232 connect to the PC ,record the speed and torque and other data. Use imported chucks to prevent the stir bar from loosening;
  • The LCD displays the set and actual values of the speed and monitors the speed and torque in real time;
  • The torque can be automatically adjusted according to the viscosity change of the sample, and the rotation speed can be finely adjusted according to the demand during the operation to facilitate the experimental operation.

Technical Specification

Model RWD50 RWD100 RWD150
Capacity 20L(H2O) 40L(H2O) 50L(H2O)
Speed range 30-2200rpm 30-2200rpm 30-2200rpm
Speed display LCD LCD LCD
Speed display resolution ±1rpm
Time set function 1~9999min
Torque 40N.cm 60N.cm 80N.cm
Overload protection Display failure, stop automatically
Motor protection Display failure, stop automatically
Viscosity 10000mPas 50000mPas 80000mPas
Drill chuck clamping diameter 0.5-10mm
Exterior Dimension 186x83x220mm
Weight 2.6kg 2.8kg 3.0kg
DinEn60529 Class IP42
Allowable ambient temp. 5-40℃
Allow ambient humidity 80%
Motor input power 60W 120W 160W
Motor output power 50W 100W 150W
Voltage 100-240VAC
Frequency 50/60Hz
Power 70W 130W 160W
Safety protection Chuck protector  Safety buckle Anti-slip mat
Mixing time setting YES
Speed mode Fast speed and accurate speed adjust
Speed memory YES
Stirring paddle fixing method Self-locking chuck