One factor of building long-lasting asphalt roads that can withstand the strain of traffic year after year is an elevation control system for paver screeds, such as Mini-Line® paving control. It automatically maintains the desired grade when paving, while its ultra-sonic sensors copy the reference with millimetre precision. The paving crew can thoroughly rely on the levelling job of Mini-Line®, and take care for other important tasks of high-quality asphalt laying.
In addition to the mono or multi-sonic sensors G221 and G224, Mini-Line® can operate with our accurate and heavy-duty slope sensor S297, as well as with our linear laser receivers with millimetre resolution. The choice of sensors depends on the paving application. Don't hesitate to contacting us in case you are not sure of the appropriate sensor.
Both ultra-sonic sensors have LEDs indicating the elevation difference to on-grade. A glimpse gives you the peace of mind that the sensors are working and delivering precise signals to the control. br> When using the G224 Multi-Sonic sensor over a reference stringline it will detect, indicate and send height data, as well as direction (aligning) values, p. e. to control an expendable paving screed.
If the subbase or ground serves as reference for the ultra-sonic height measurement then we recommend using an averaging beam system. It will improve the mat smoothness averaging out irregularities of the ground across the entire span of the beam. There is the Compact Averaging Beam of four sensors available, as well as the Super Averaging Beam of 9 m or 13 m length, for up to 6 ultra-sonic sensors.
The paving control is typically separated in a left and right control loop. At each side there is a HS301 hand-set controller that raises or lowers the left or right tow arm cylinder of the paver. br> If you'd like to control both tow arms from one central control panel, or if you'd like to have a crossover operation from left to right side (or viceversa), then PL2005 Dual paving control shall be the right choice for you. The panels and all sensors will be connected to the central interface box that controls the valves of the tow arm cylinders.