For preventive road maintenance, crack-filling work relies heavily on crack-cleaning machines as vital pre-processing equipment. Cracks in road surfaces accumulate dust, gravel, aged asphalt filler, weeds, and water. Directly injecting sealant into these cracks reduces adhesion by over 50%, shortening the repair lifespan from 3-5 years to less than 1 year. Crack cleaning machines, by widening the cracks, removing debris, and drying the crack walls, create a clean, rough bonding surface, allowing the sealant to adhere firmly to the crack walls, fundamentally improving sealing, waterproofing, and tensile durability. YG also provides crack-filling machines, grooving machines, and other road construction equipment. Contact us now!
Technical Parameters Of Crack Cleaning Machine
| LQ-350 Crack Cleaning Machine | |
| Parameter | Specification |
| Cleaning Speed | 610m/min (Depth feeding:1030mm/min) |
| Cleaning Depth | 0-100mm |
| Cleaning Width | 3~8mm |
| Matched Power | 13HP |
| Rated Speed | Cutter shaft:3200r/min; Engine:3600r/min |
| Travel Mode | Hand-push type, adjustable cleaning speed |
| Overall Weight | 95kg |
| Overall Dimension | 1150680930 (mm) |
| Blade Size | Diameter 350mm, thickness 6mm; Spec:350504/5/6 |
Core Working Principle of Crack Cleaning Machine
Mainstream seam cleaning equipment on the market consists of three main operating logics: cutting and grooving, hot air high-temperature purification, and wire brush grinding, as detailed below:
- Cutting and Grooving Crack Cleaning Machine: Powered by gasoline/diesel, the main shaft rotates at high speed. Carbide saw blades and milling cutters cut along the existing crack trajectory, precisely controlling the grooving width to 3–25mm and the depth to 15–50mm, transforming irregular fine cracks into standard trapezoidal grooves. Equipped with a high-pressure blower or negative pressure dust extraction system, it simultaneously removes cutting debris and dust, creating a rough, interlocking surface on the crack walls.
- Hot Air Purification Crack Cleaning Machine: Liquefied petroleum gas mixed with high-pressure air combustion generates a high-temperature airflow of 1200–1600℃. This high-temperature burning removes weeds, silt, and evaporates water accumulated in the cracks, while simultaneously softening the surface oxidized asphalt. There is no open flame carbonization pollution, and cracks can be filled immediately afterward.
- Wire Brush Crack Cleaning Machine: A high-speed rotating wire wheel abrades and polishes the crack walls, removing loose dust and asphalt layers. Combined with a rear-mounted air gun, it is suitable for shallow cleaning of fine cracks less than 5mm wide, and for light maintenance projects that do not require grooving or crack widening.
The integrated model combines grooving, dust extraction, and hot air drying functions into one unit, allowing a single machine to independently complete all pre-processing steps, significantly reducing manual handling time.
Crack Cleaning Machine Classification
(I) By Operation Process
- Grooving and Cutting Crack Cleaning Machine: The mainstream, essential model, capable of reshaping crack dimensions, suitable for the most severe cracks on highways and municipal main roads. Available in standard blowing and dust-free suction types.
- Hot Air Crack Cleaning Machine: Focuses on drying and dehumidification, and shallow cleaning. Primarily used in rainy southern regions and for construction in cold winters. Best used in combination with a grooving machine.
- Wire Brush Grinding Crack Cleaning Machine: Lightweight, small equipment, only for shallow crack dust removal and grinding, without grooving capabilities. Dedicated to repairing fine cracks in residential areas and parking lots.
- Integrated Crack Cleaning and Sealing Machine: Towing/vehicle-mounted integrated structure, standard equipment for large-scale, high-speed, long-distance maintenance projects.
(II) Classification by Mobility
- Hand-push Crack Cleaning Machine: Pushed by a single person, lightweight and flexible, the best-selling model on the market, covering the 3-13 horsepower power range.
- Towed Crack Cleaning Unit: High-power, large-capacity hot air unit, towed by a trailer, equipped with an air compressor system, used for long-distance field projects.
Advantages of Crack Cleaning Machines
- Standardized crack cleaning significantly improves the adhesion of the crack sealant, tripling the service life of the maintenance system.
- One machine is suitable for both asphalt and concrete, two mainstream road surface materials.
- The hand-push model is easy to disassemble, assemble, and transport; it can be directly loaded into truck beds.
- Low operating threshold; simple training allows for independent operation.
YG Crack Cleaning Machine Core Advantages
- Durable Body: High wear resistance of tungsten carbide alloy blades; integrated welding of NM400 thickened steel plate for deformation resistance; brand-name gasoline engine with three-stage air filter for shock absorption, stable and low-consumption operation in low-temperature and dusty conditions; multiple dustproof oil seals on the blade shaft and waterproof encapsulation of the electrical control system, reducing malfunctions in rain, snow, and dust.
- Efficient Construction: Electric lifting blade holder, adjustable depth from 0–50mm and width from 3–30mm, with guide wheels for a smooth cut; built-in blower for slag removal, optional negative pressure dust collection for environmentally friendly operation, single-person operation saves labor; full range of models available (hand-push, towed, and vehicle-mounted), can be combined with YG’s own crack filling machine to form a complete maintenance line.
- Safe and Easy to Operate: Equipped with an emergency stop, protective baffle, and high-temperature warning; an easy-to-understand electrical control panel, low learning curve.
- Excellent Cost-Effectiveness: Direct production from the source, no middlemen, bulk purchase discounts available.
- Complete set collaboration: The entire series of equipment for cleaning cracks, grooving, and filling cracks is self-developed and adapted, and the procurement, delivery, operation, and maintenance are unified, reducing management costs.
Crack Cleaning Machine FAQ
Q1: Must the crack cleaning machine be purchased together with a crack sealing machine?
A: There is no mandatory requirement to purchase them together; if you already own a crack sealing machine from another brand, you can purchase the YG crack cleaning machine separately. For new projects, purchasing a complete YG crack cleaning + crack sealing unit will result in bulk discounts and complete set debugging guidance from the manufacturer.
Q2: Can crack cleaning be performed normally in sub-zero temperatures during winter?
A: Yes. The YG hot air unit has stable ignition at low temperatures, and the high-temperature airflow quickly dries freeze-thawed water; for grooving models, preheating the engine for 3 minutes before starting in low temperatures allows for normal cutting. In low-temperature environments, it is recommended to use it with weather-resistant crack sealing adhesive.
Q3: Can the crack cleaning machine clean both cement and asphalt surfaces?
A: It is compatible with all models; only the saw blade needs to be changed to the corresponding material. Use a soft alloy saw blade for asphalt surfaces and a thickened diamond saw blade for concrete surfaces. Switching is simple and quick.
Q4: Are certifications and foreign language documents provided for overseas exports?
A: YG machines can obtain CE international certification. Each exported unit comes with a complete set of English operation manuals, maintenance drawings, and video tutorials, along with 24/7 remote cross-border technical support.
Choose A Professional Crack Cleaning Machine Manufacturer – YG
As a self-developed and self-manufactured factory for complete road maintenance equipment, YG’s crack sealing machines are matched and calibrated with its own crack filling machines for higher compatibility in construction. Each machine undergoes 24-hour continuous cutting tests under no-load and full-load conditions, and the spindle concentricity and lifting accuracy are verified unit by unit, making it suitable for harsh construction environments both domestically and internationally. If you are interested in purchasing a crack cleaning machine, contact us immediately. YG engineers will precisely match the machine combination based on the customer’s project volume, construction area, and environmental requirements, avoiding overkill or insufficient equipment power that could slow down the construction period. Act now!
