Hefei Huayang Construction Machinery Co.,Ltd
Specifications of LLRD-G350 crack sealing machine

1.Product Application:

Crack sealing machines are specially used for sealing the cracks on asphalt pavement of the expressways, highways, city road, airports,etc after roads' opening and maintenance. Sealing by the seal glue to ensure the whole usability and prolong the service work time of highway.

2. Parameter:

1) Net Weight: 2200kg

2) Material Melting Speed: About 40 mins

3) Hot melt kettle volume: 350L

4) Heat transfer oil / conduction oil: 120L

5) Engine: Imported Honda GX690 gasoline engine

6) Engine Power: 25hp

7) Fuel Tank: 50L 

8)Hydraulic fuel tank capacity: 50L

9) Burner: Imported Italian Riello Diesel Burner

10)Burning Power: 100000 kcal

11) Heating Method: heat transfer oil indirect heating, to ensure that material will not be carbonized

12) Two stage melting: under the working status, we could use the cycling heating system to fill the material from upper material box and therefore form a cycle, heating sealant thoroughly; at the same time, it’s equipped with vertical mixer, hydraulic driving and reversing, to ensure the material temperature balance in the hot melt kettle 

13) Temperature control: monitoring the temperature of thermal oil filling, sealing materials and electric heating tube, the computer automatic control (when reaching the construction temperature, it would automatically conduct heat preservation procedure)

14) Temperature control scope: 0~299℃

15) Feeding mechanism: the integration of discharging control switch; Infinite speed control; Equipped with a leak-proof switch

16) Feeding hose: The electric heating tube is 6M in length, can rotate 360°, with technology in spout incubator, avoid blocking pipe problem caused by low temperature

17) Discharging control: the infinite speed regulation control

18) Plate and lifting device: grooving machine, dryer equipment can be integrated in the back of sealing machine (optional), not hanging, equipped with plate and electric hoist to assist lifting up and down 

19) Moving Method: Dual-purpose: hand-push type or traction type as you like

20) Vehicle suspension: leverage spring compression type of shock absorber

21) Self-propelling Speed: 10km/h


1) The imported Honda EG690 gasoline generators: provide sufficient power system to the equipment


2)The heating system of imported Riello diesel burner can not only provide the ideal heating effect, it’s also stable and sustainable. through the use of advanced microcomputer control technology, the switch on and switch off function of the burner can be achieved automatically through setting heating temperature on the control panel. Through this, you could not only save energy consumption, but could also realize the real intelligence operations


3)Hot melt pot adopts the design of inter-layered heat conduction oil. It can use special-purposed heating sealing glue, it can also use modified asphalt after heating.


4) The discharge hose adopts electric heating during the whole heating process, in addition to the automatic discharging switch, it’s specially equipped with a drip-proof valve, thus completely eradicating waste and pollution of road surface material caused by material drip 


5) The bracket of spear parts of Crack sealing gun adopt design of heat insulation box, which are interlinked with hot melt kettle. Even when stopping work, you also need not worry that spear sealant would cause coagulation block. The crack sealing gun uses Teflon technology in the heating pipe, guaranteeing no bond in the barrel after use, therefore, there is no additional cleaning procedures of the pipeline 


6) Digital display: Through microcomputer control, you can respectively control the temperature of hot melt kettle, conductive thermal oil and crack sealing gun, thus achieving accurate control of heating temperature for different seal material


7) The whole machine adopts fully enclosed design, not only having beautiful shape, but also can better protect the engine and other key components


8)Night lighting and warning lights for optional choice


9)Advanced design concept, adding a carrying platform in the end of the filling and sewing machine, and also a traction device. Grooving machine, heat gun or other items can be easy to carry, greatly enhancing the maneuverability of the equipment