The asphalt crack filler machine is road machinery, mainly used for preventive maintenance of road diseases, and is generally used in conjunction with a slotting machine, a filling machine, a hairdryer (or a thermal spray gun). The filling machine is the core equipment of the filling technology. Cracks are one of the main forms of early disease on expressways, among which linear cracks such as horizontal cracks and longitudinal cracks are the most common. Filling technology is the treatment technology for these diseases, covering the content of filling material, filling equipment, and filling technology. The filling machine is the core equipment of the filling technology. The function of the joint filling machine is to heat the cracks after grooving and cleaning the cracks and use a filling gun to evenly pour the sealant into the grooves to complete the joint repair work.

Working Principle of Crack Sealing Machine:
The small crack filling machine adopts a liquefied gas heating system and circulating heat transfer oil to quickly melt the asphalt or joint filling glue. The pressure of the asphalt pump is discharged from the discharge port to achieve the effect of crack treatment. Through the pressure injection type grouting, the material and the joint wall are closely combined, and the flexible universal wheel can track the cracks to make the grouting effect beautiful. As the filling material uses asphalt or sealing glue, it is easy to solidify when the temperature is low. The filling machine is equipped with a Yamaha generator set to provide the power of the whole machine. The filling machine adopts a constant temperature control system at the discharge pipe to avoid the burnt and aging of the material, to ensure smooth discharge.

Application of Road Crack Filling Machine:
The filling machine is mainly used for the treatment of surface cracks on asphalt pavements, cement pavements, and sites.

Selection Guide:
1. The operation should be convenient and simple so that the construction is more worry-free;

2. It must be safe and reliable, the center of gravity must be low, the dragging must be stable, the feeding height must be lower, the heat preservation effect is good, and the heat preservation effect is good, which can not only reduce fuel consumption but also avoid burns;

3. The stability should be high, the failure rate should be low, and problems should not occur every three to five. This will not only increase maintenance costs, but delay construction is fatal;

4. High working efficiency, fast heating, and fast discharging;

5. Reasonable cost performance, higher prices will increase investment, but if the performance is good, it is still a good deal. Some equipment is cheaper but not easy to use and has a high failure rate. The purchase cost is reduced and the construction cost is increased.

Safety Precautions for Road Maintenance and Filling Machine:
1. The operator must undergo professional training.

2. The operator should wear protective gear when working.

3. Check the liquefied gas tank and pipeline connection before operating the road maintenance and filling machine to ensure that there is no leakage.

4. Pay attention to the high-temperature part of the road maintenance and filling machine to avoid burns.

5. When filling the grouting material, pay attention to avoid the asphalt splashing and hurting people.

6. When filling heat transfer oil, avoid mixing water and air.

7. When operating the machine, the situation of the combustion furnace and the display of the instrument should be observed at any time.

8. When special circumstances cause the flame to go out, the gas manual valve should be closed in time.

9. Avoid putting stones and sundries in the oil storage tank.