

In road infrastructure maintenance, crack filling machine is an indispensable professional equipment, widely used in asphalt pavement crack repair operations. It can not only effectively prevent water infiltration, reduce further damage to the road surface, but also extend the service life of the road, reduce long-term maintenance costs, is a modern road preventive maintenance of the key tools.
Crack Filling Machine Parameters
| Model | YG-50L | YG-80L | YG-100L |
| Hopper Volume | 50L | 80L | 100L |
| Discharge Method | Self-flow | Asphalt pump feed | Asphalt pump feed + hand-held tube |
| Heating Method | Liquefied gas | Liquefied gas + heat transfer oil | Italian diesel burner, heat transfer oil cycle heating |
| Temperature Control | Temperature sensor 180°C | Temperature sensor 180°C | Automatic temperature control system |
| Filling Speed | 10m/min | 15m/min | 20m/min |
| Walking Mode | Push-type + brake device | Push-type + brake device | Push-type + trailer |
| Mixing Method | Manual mixing | Manual mixing | Electric stirring |
| Weight | 120kg | 150kg | 220kg |

Application of Crack Filling Machine
Grouting machine is widely used in the following scenarios:
- Highways, municipal roads, airport runways, industrial park roads
- Cement and asphalt mixed pavement, plaza, parking lot
- Irregular cracks, temperature difference cracks and micro-cracks caused by traffic pressure
Usually used in conjunction with grooving machine and blower, it can realize the complete crack treatment process, from grooving, cleaning to heating and material injection integrated construction.
Working Principle of Crack Sealing Equipment
small grouting machine adopts liquefied gas heating system, combined with thermal oil circulation technology, can quickly melt the asphalt grouting glue heating, and through the internal pressurized pump will be the material from the discharge port stable output, directly filled into the cracks. Some models are equipped with hand-held hose gun, which is convenient for operators to flexibly deal with cracks of different angles and depths.

Asphalt Crack Sealing Equipment Efficiency and Actual Capacity
The actual operating efficiency is affected by many factors:
- Trenching requirements If trenching is required, the progress depends on the depth of the trenching and the condition of the working surface.
- Crack pattern The deeper and wider the cracks are, the more consumables and working time will be required.
- Skillfulness of operation Skilled workers with good co-ordination can reach 2,000-3,000 meters/day.
- Material properties The melting speed of the asphalt grouting adhesive and the ambient temperature will affect the efficiency.
- Quantity of grouting material The average daily quantity of grouting material is 200-300 kg/set. 300 kg/group
Taking the conventional model YG-100L as an example, combined with electric mixing and automatic temperature control system, it can realize the speed of 20m/min under normal condition, which is suitable for repairing large cracks.

How to construct a grouting machine?
- Road closure preparation: sign setting to ensure construction safety;
- Crack slotting: use the slotting machine to expand the crack, easy to fill the material;
- Seam clearing treatment: clean up debris and sundries by blowers;
- Heating the melt: preheat the grouting adhesive to a suitable temperature (around 180°C);
- Grouting: Start the asphalt pump and inject the grouting material evenly;
- Natural cooling: wait for the material to solidify and resume traffic.
The whole process usually needs 4~5 people to cooperate, with the advantages of high construction efficiency and lasting effect.
Why choose YG crack filler machine?
- Intelligent temperature control system, reduce the waste of the melt.
- Automatic mixing, flexible operation of hose nozzle.
- Energy efficient, suitable for all-weather continuous operation.
- Multiple models to choose from, suitable for different construction scales.
- Perfect after-sales service and complete accessories.

More Road Maintenance Equipment Recommendations
In addition to crack sealing machines, we also offer the following products to meet more construction needs:
road marking machines, mini road rollers, electric road sweepers, asphalt crack sealing machines, etc.
For more information about crack filling equipment or to get the latest crack filling machine price, please feel free to contact us by the following way:📞 WhatsApp/WeChat/Phone: +86 13837115193.









