Hydraulic motor graders are a high speed, high efficiency, high precision and multi-purpose earthmoving machine.Working device with external ring gear, greater transmission torque, larger blade cutting angle,so that the machine has better material control ability, with the largest traction in similar models in the country.The machine is suitable for large-scale ground leveling, trenching,scraping,bulldozing,ripping,land reclamation,snow removal and so on,is an indispensable mechanical equipment for the construction of national defense engineering,mine construction,urban and rural roads,water conservancy construction, farmland improvement and so on.

1.Using 6 block electric control shift hydraulic gearbox, speed ratio distribution is reasonable, to ensure that the machine has three work gear selection, to ensure the reliability and flexibility of the operation.

2.The use of external ring gear, greater transmission torque, larger blade cutting angle, so that the machine has better material control ability, is particularly useful in dealing with dry materials and clay.

3.Using the international advanced hydraulic brake control technology, internationally renowned hydraulic parts, to ensure safe and reliable braking.  

4.Advanced luxury, full vision, fully sealed cab and high efficiency shock absorbing seat to maximize operational comfort.

5.Standard large capacity air conditioner, double sealed side door, the noise is lower than 84dB, effectively reduce the operator's labor intensity.

6.Four-door steel hood for easy engine maintenance and heat dissipation.


Model SG18 SG21
Length × width × height (mm) 9130×2600×3400 9430×2600×3400
Working weight (t) 16.2 17
Engine model 6BTAA5.9-C180 SC8D190.1G2 6CTAA8.3-C215
Rated Power (kW/rpm)   132(180HP)/2200 140(190HP)/2300 160(215HP)/2200
Speed (km/h) 5.3~37 5.4~39.7
 Minimum turning radius (mm) 7800 8200
Blade size (mm) 3965/635 3660、3965、4270/635
Rated working pressure (MPa) 16 16


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