In April 2025, a YG brand crack seal machine for sale was successfully shipped to Johannesburg, South Africa and put into use. The customer is a local contractor with 10 years of experience in municipal road maintenance. After testing, the project manager said, “This machine operates very smoothly, heats up quickly and discharges steadily, saving more than 30% of construction time compared to the equipment we used in the past.”
The machine is a hot grouting device, primarily used to repair cracks in asphalt or concrete pavements. By heating the sealant compound and injecting it inside the crack, it effectively prevents water penetration and further damage. It is often used in conjunction with asphalt crack sealer machine and grouting auxiliary equipment, and is widely used in highways, urban main roads and industrial parks.


Asphalt Crack Sealer 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 ° (temperature control call) | Temperature sensor 180 ° (temperature control call) | Automatic temperature control system |
Filling speed | 10m/min | 15m/min | 20m/min |
Length of sealing pipe | —— | —— | 5m |
Walking mode | Push-type + brake device | Push-type + brake device | Push-type + trailer |
Mixing method | Manual mixing | Manual mixing | Electric stirring |
Power Configuration | Solar panels + batteries | Solar panels + batteries | Import 2KW generator |
Dimensions | 1200*700*1200mm | 1200*700*1200mm | 1750*786*1200mm |
Weight | 120kg | 150kg | 220kg |

Challenges and Choices of South African Customers
In the initial communication with South African customers, they indicated that crack problems occurred frequently on local roads due to the large temperature difference between day and night. The grouting equipment used in the past had problems such as slow heating, clogging of the spray gun, and difficulty in maintenance, which led to low construction efficiency and prolonged construction period, seriously affecting the project progress.
Based on their feedback, YG team recommended this crack seal machine for sale, which has larger hot melt capacity and faster heating speed compared with the common small machines in the market, and the whole machine is compact and easy to be transported, which is especially suitable for the road maintenance project in the urban and rural areas of South Africa. Customer feedback after trial: “This equipment can be heated up in 20 minutes to work, the material is uniform, and there is no more frequent stoppage of work.”

Application Scenarios with Obvious Advantages
This crack seal machine is suitable for airport runways, urban main roads, rural roads, neighborhood roads and other scenarios. Its advantages include:
- compact structure, easy to transport;
- High efficiency of heating system, saving waiting time;
- Easy operation, short training cycle for construction personnel;
- Long-lasting sealing effect, effectively extending the life of the pavement.
Both municipal contractors and rental service companies can use this equipment to improve the quality and efficiency of road rehabilitation.
Crack Seal Machine for Sale in YG Machinery
As a professional pavement maintenance equipment manufacturer in China, YG Machinery always insists on providing high-performance and cost-effective road maintenance solutions. We have a complete pre-sale consulting, customization and after-sale training service process to ensure that each customer has no worries in the process of using the products.
In addition to crack seal machine for sale, we also recommend the following related products: crack filling machine, asphalt crack sealer machine, road roller and other products. For more technical information or quotation, please feel free to contact YG team, we will provide you with the most suitable solution for your local construction needs.