Crack Sealing Machine
Trailer type

Kettle volume: 350L

Heat transfer oil heating

Product Details


Crack sealing machine is a road maintenance machine for repairing the pavement cracks, which is used for heating and pouring the sealant evenly into the treated cracks to achieve the waterproof purpose. It’s composed of chassis, power, driving motors, control system, heating system, and pumping systems. It’s used with a router, vacuum cleaner, or hot air lance. It applies to the residential, municipal, highway, freeway, airport, and other pavement.


1. Centralized temperature controller: Dual-digital liquid crystal temperature controller: timely display and adjust the temperature of heating transfer oil, sealant, and sealing hose.

2. Sealing wand: Labor-saving design, electric discharge switch controls the material volume, ensure the best sealing effect under the same sealant, temperature, and road conditions. 

3. Build- in pump: Easy discharging and longer service life.

4. Heating transfer oil system: The sandwich design uses less oil, improves heating speed, and reduce replacement cost.

5. Special geometry chamber: The flame blow to the partition wall at an angle of 45 degrees downwards, without direct contact with hot kettle, the air in the chamber is fully burned with a high heat utilization rate.

6. The lowest feeding height: Compact and reasonable structure, low operating position, and filling height ensure conveniently, labor-saving, and safe feeding operations.

7. Easy-to-replace sealing wand: Choose the corresponding sealing wand according to the cracks and road conditions to achieve the best sealing effect.

8. Dual shock absorber towing chassis: Auto tires, safe driving; Parking brake.

Construction process



Dimensions3150   x 1780 x 1850 mm, L x W x H
Net   weight1050   kg
Safety   deviceParking   brake
Kettle   volume350 L
Melting   rate45 min/80   kg, Continuous melting rate: 20 min/14 kg
Engine220V   Honda gasoline engine
StartingElectric   starting
Engine   speed3600   r/min
Displacement389 cm3
Rated   power5.5 KVA
Fuel92#   gasoline
Fuel   tank capacity25 L
Continuous   working time9 h
Rear-axle   assemblyRear-axle   with a torsion beam
Feeding   pumpAdjustable-speed   motor, 0.75 KW
AgitatorConstant   speed motor, 0.75 KW
Feeding   system
Feeding   pumpSubmerged   pump, Flow 30 m3/h, Pressure 0.56 MPa
Discharge   nozzleDN40   mm
Feeding   height≤ 125 cm
Automatic thermostatic control system
ThermocoupleK   type
Heating   transfer oil85 L
Electric heated hose and burner
Burner220 V,   diesel burner 100 KW/h, 250000 BTU/h
Diesel   tank60 L
Electric   heated hose220 V,   length: 6 m (270 degrees rotating electric heated hose)
Hoist   for grooving machine

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