lwd-5 stability device for asphalt with mixing materials is applicable for marshall stability test and soaking marshall stability, construction quality inspection for matching ratio of asphalt with mixing materials or asphalt road surface. lcd display is employed to display the curve and experimental data, clear and convenient. nominated pressure and flow ＆#118alue by digital controller without manual adjustment for the pot,equipped with automatic protection under over voltage. the tester may not be damaged by over voltage. technical parameters: 1.pressure: measuring range: 0-50kn,display unit: 0.01kn(10n) 2.flow #118alue: measuring range: 0-10.00mm(actual #118alue reaches 15.00mm) 3.operating voltage: 220v--370w 4.printer: 16p micro-printer or lq300k24 pins