Main technical parameters: Notechnical parametertld-20a 1max load20kn 2accuracy gradegrade 1 3measuring range0.2%~100% 4load measuring accuracyr.O.�0.5% 5testing force resolution1/200000fs 6range of testing speed0.001�?500 mm/min 7speed accuracyr.O.�0.5% 8measuring accuracy of displacementr.O.�0.5% 9measuring system of deformation5~800mm 10measuring accuracy of deformationr.O.�0.5% 11mechanical structuregate model 12valid testing space1200mm 13valid testing width350mm 14position limit protectionselectronic position limit protection 15over current protectionexceed 20% voltage, machine will stop automatically 16overloadexceed 10% max load, machine will stop automatically 17power supplysingle phraze 220v�10% 18power0.75kw 19weight190kg 20dimension0.8*0.5*1.6 Other functions All machines are controlled by microprocessor, it can be controlled independently, menu operation, flexibly set, lcd, english interface. All the machines equipped with micro printer to print the result. May match pc, the special software can measure the performance data of various materials. May match macro-deformation measure system Additional load cell can expand the measuring range of load. According to different voltage, the user can chose the different power adaptor.