Product Description
An asphalt joint sealer, also known as an asphalt crack filler, is specialized equipment designed to repair cracks in roads, pavements, or parking lots by injecting hot-melt asphalt sealant. Here's a simple English introduction outlining its key features:
Purpose
- Specifically used to seal cracks in asphalt surfaces, preventing water infiltration, debris accumulation, and further damage to extend the lifespan of roads and pavements.
Working Principle
- Heats solid asphalt sealant (in pellet or block form) to a liquid state (typically 180-220°C) in a heating tank. A pumping system then delivers the molten sealant through a hose and nozzle into the crack, where it cools and solidifies to form a durable seal.
Main Components
- Heating Tank: Stainless steel or insulated tank with heating elements (gas, diesel, or electric) to melt sealant.
- Pumping System: Hydraulic or pneumatic pump to extrude the molten sealant.
- Control Panel: Regulates temperature, pumping pressure, and flow rate.
- Nozzle and Hose: Flexible hose with a precision nozzle for accurate crack filling.
- Transportation Chassis: Trailer-mounted or wheeled for mobility on job sites.
Key Parameters (Example)
- Heating Capacity: 100-500 kg/h (sealant melting rate)
- Working Temperature: 180-220°C (adjustable for different sealant types)
- Pumping Pressure: 0.5-2 MPa (controls sealant extrusion speed)
- Tank Volume: 200-1,000 L (depends on model size)
- Heating Method: Gas-fired (LPG/propane), diesel, or electric resistance
The asphalt crack filling machine is a specialized equipment designed for efficiently repairing cracks in road surfaces. Equipped with advanced heating and dispensing systems, it melts high-quality asphalt or sealant materials on-site, ensuring a seamless and durable repair. Its precision control system allows for accurate application, minimizing material waste and maximizing repair quality. Portable and user-friendly, this machine significantly enhances road maintenance efficiency, prolonging pavement lifespan and improving driving safety. Ideal for both small-scale repairs and large-scale projects, it's a vital tool in modern road maintenance arsenals.


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