LWD Series Marshall Stability Tester

Application:
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.

Specifications:
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 carefully
LDW –2	Load transducer	Displacement transducer	Digital 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 Printer	Automatically eliminate zero error