Asphalt crack sealing machine is a road maintenance equipment specially designed for hot-melt crack sealing repair of asphalt highways, municipal roads, airports, squares, and other pavement cracks. The YG series offers three models: 50L, 80L, and 100L, suitable for different construction scales from small repairs to large-scale municipal projects. Equipped with differentiated heating, discharging, mixing, and power systems, this machine achieves a maximum sealing speed of 20 m/min. It features precise temperature control, uniform heating, flexible operation, and compatibility with various pavement crack sealing materials, and can be used alongside matching maintenance equipment. As a core specialized piece of equipment for reducing costs and increasing efficiency in pavement crack repair, it stands out for its versatility and performance.
Asphalt Crack Sealing Machine Models And Core Parameters
Choosing the right pavement crack repair equipment starts with understanding its technical specifications. The YG series offers three models to match different job scales, from small residential driveways to large municipal projects. Below is a detailed comparison of the YG-50L, YG-80L, and YG-100L.
| 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 |
Key Advantages Of This Crack Filler Machine
What makes the YG series stand out?
- The integration of solar panels with battery backup on the YG-50L and YG-80L means you can operate without relying on external power—ideal for remote work zones.
- The heating systems are tailored for efficiency: the YG-100L uses an Italian diesel burner combined with heat transfer oil circulation, ensuring uniform melting and preventing material charring.
- The electric stirring on the largest model eliminates manual effort, delivering consistent sealant viscosity.
For smaller models, the liquefied gas heating system with heat transfer oil quickly melts asphalt or crack filler, allowing pressure injection that bonds the material tightly to the crack walls. These advantages translate directly into lower fuel consumption, faster filling speed (up to 20 m/min), and longer machine life. As a dependable asphalt crack sealing machine, the YG series reduces downtime and labor costs significantly.
Core Components Of A Reliable Hot-Pour Crack Sealer
Understanding the build of a quality hot pour crack sealer helps you appreciate its performance. The YG series features a rugged steel frame with a heat-insulated hopper to keep sealant workable for extended periods. The heating system includes either liquefied gas burners or a diesel burner wrapped with heat transfer oil coils. The discharge system varies: self-flow gravity for the YG-50L, an asphalt pump for the YG-80L, and a pump plus a 5-meter hand-held tube for the YG-100L, giving you precise control over sealant placement. Additionally, the electric stirring motor on the YG-100L ensures even heat distribution, while the trailer axle and brake devices on all models provide safe transport. This hot pour crack sealer is built for daily professional use on highways, municipal roads, airports, plazas, and industrial parks.
How Does an Asphalt Crack Sealing Machine Work?
Operating an asphalt crack sealing machine follows a simple yet effective workflow. First, use a slotting machine and blower to clean and prepare the crack. Then load solid crack sealant or hot-pour filler into the hopper. Turn on the heating source—liquefied gas for the YG-50L/80L, or the diesel burner for the YG-100L. The heat transfer oil circulates to rapidly melt the material. The temperature sensor maintains the sealant at approximately 180°C. On the YG-80L and YG-100L, an asphalt pump pushes the molten material through a discharge tube under pressure. This pressure injection ensures the sealant penetrates deep into the crack and bonds firmly with the sidewalls. For the YG-100L, the hand-held tube allows precise application. A swivel caster wheel tracks the crack line, making the sealing process smooth and visually neat. The machine’s walking mechanism (push-type with brakes or trailer) lets you move steadily along the crack. As the sealant cools, it forms a flexible, waterproof bond that seals out moisture and debris for years. Every asphalt crack sealing machine in the YG series is designed for fast heat-up and consistent flow.
Smart Features Of The YG Series Crack Sealing Equipment
Beyond basic function, the YG series incorporates thoughtful features that enhance usability. The push-type walking mode on the YG-50L and YG-80L includes a brake device for safe stopping on slopes. Solar panels trickle-charge the batteries, so you never arrive at a job with a dead control system. For cold-weather operation, the YG-100L comes with an imported 2KW gasoline generator that powers the electric stirring and a constant temperature control system on the discharge pipe. This prevents the sealant from burning or aging, ensuring smooth outflow even at low ambient temperatures. The automatic temperature control on the YG-100L not only prevents overheating but also reduces fuel waste. The 5-meter sealing pipe on the YG-100L gives you reach to treat cracks along barriers or curbs without moving the machine every few meters. Electric stirring on the same model ensures that the sealant remains homogeneous, avoiding sediment buildup that can clog nozzles. For cold climates, the heat transfer oil system delivers stable heating even when temperatures drop below freezing. This crack sealing equipment is backed by YG Machinery’s rigorous testing.
Applicable Materials And Final Recommendations For This Equipment
This asphalt crack sealing machine works with most hot-pour crack sealant materials, including polymer-modified asphalt, rubberized asphalt, and fiber-reinforced sealants. It is suitable for a wide range of surfaces: highways, municipal roads, airports, plazas, industrial parks, and even complex or irregular pavements. The YG-50L is perfect for sidewalk and small patch repairs; the YG-80L balances capacity and portability for medium-sized lots; the YG-100L, with its trailer, generator, electric stirring, and constant temperature control, is a production machine for highway crews and large-scale projects. To maximize the lifespan of your pavement, we recommend daily cleaning of the hopper and periodic inspection of the asphalt pump and heating elements. Always use a slotting machine and blower before sealing for optimal adhesion. Investing in a quality asphalt crack sealing machine today prevents costly overlays tomorrow.
We have exported road crack sealing machines to Qatar successfully. For your reference: The Qatari customer purchased our YG-100L road crack sealing machine, which reduced downtime by 50% and accelerated maintenance cycles by 35% in high-temperature environments exceeding 45°C, successfully solving the problems of frequent equipment overheating and material blockage under extreme climates.