LWD Series Marshall Stability Tester

                              LWD Series Marshall Stability Tester

                              The Marshall Stability Tester is used for determining thermal stability of bituminous mix material and capability of resistance to plastic deformation and flow value of the material as well as providing accurate basis for the composition of bituminous mix material. The tester has load and deformation transducer as well as digital load and flow indicator, It can automatically increase load and print out loading peak value and flow value、automatically draw the relationship curve between the load and deformation、automatically change the load. It is suitable for traffic engineering, university and research institute to make experiment use.


                              1. Capacity : 30kN

                              2. Proving ring: 30kN

                              3. Pressure ring accuracy : 0.01kN

                              4. Loading head: R50.8mm

                              5. Micrometer : division 0.01cm

                              6. Mold : Ø101.6 x 87.0mm

                              7. Specimen : Ø101.3 x 63.5mm

                              8. Load transducer accuracy : 1%

                              9. Displacement transducer accuracy: 1%

                              10. Data acquisition cycle : 5 times per second

                              Model Load test Flow test Auto degree Allocation Remarks
                              LDW-1 Proving ring Micrometer Hand operation  

                              Notice proving ring's readings


                              LDW–2 Load transducer Displacement transducer Digtal display load increasement Digital display indicator Adjust zero carefully
                              LDW-3 Load transducer Displacement transducer

                              Auto load increasement

                              Auto printing out

                              Auto discharge load

                              Digital display indicator


                              Automatically eliminate zero error



                              7×24 熱 線