一、Overview
       With the rapid development of drilling technology, there are more and more special technology wells, directional wells and cluster wells. The requirements for the lubrication performance of drilling fluid are also increasing, and the processing extrusion used for drilling fluid lubrication is also increasing year by year. Due to the difference in the quality of the lubricant, coupled with the need for reasonable matching, an instrument is required for evaluation. For this reason, we have developed the NZ-3A clay cake stickiness coefficient tester. This instrument is easy to carry, reliable in operation, high in accuracy and good repeatability. It is a necessary instrument for drilling fluid analysis.

二、Model and specification
       NZ-3A

三、Main technical parameters
1. Working power supply                                                 220V±5% AC; 50Hz 
2. Motor power                                                                          5 W 
3. Flip speed                                                               5.5 to 6.5 minutes per turn 
4. Angle reading value, digital display 
5. Accuracy                                                                              0.5 %
6. Ambient humidity                                                               10~85RH%