Road Roller Buy S812H Road Roller at Okorder

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Product Description:

Product Name: S812H Road Roller



Operating weightkg12000
Weight on front drumkg6700
Static linear loadN/cm308
Speed rangekm/h0~10.4
Theoretical gradeability%45
Min. external turning radiusmm6800
Steering angle°±30
Oscillating angle°±10
Vibration frequency(L/H)Hz30/35
Nominal amplitude(H/L)mm1.80/0.9
Excitation force(H/L)kN290/180
Drum diametermm1523
Drum widthmm2130
Engine model
Cummins  4B3.9
Water cooled, turbo-charged,air-air intercooling
Rated power @2200r/min kW93




state-owned company

fortune 500 company


Road Roller Buy S812H Road Roller at Okorder 


Road Roller Buy S812H Road Roller at Okorder



Why choose us?

1 sincre

CNBM International is a state company, now is one of the largest state-owned group cooperation in China! All the equipment such as tower cranes, produced by CNBM are compliant with the national level quality.

2 professional

Our engineers will at your services 24hours to solve all your tower crane installation and other questions.  Our goal is to provide the best professional services.

3 quality

 CNBM International’s tower crane  have strict quality control, only the best quality products can pass the test.


 We have professional sales team to guarantee your reply within 12hours to save your precious time.

5 After sales

If the tower crane has any problems, we will solve your problems in first time.

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Q:What's the difference between a three wheel roller and a two wheel roller?
Three roller is the static compaction, without vibration function, used for compaction of embankment or base, two roller generally called double drum vibratory roller, roller tonnage than three small tonnage, mainly used for oil pressure, the asphalt concrete, with vibration function, the upper two wheels a water tank, can go on wheels to prevent water roller compacted asphalt concrete glued to the wheels.
Q:Is there any difference between vibratory roller and vibratory roller?
It's the same rollerCompacting capacity of vibratory roller = mechanical weight + exciting force (vibratory force of vibratory wheel mechanical vibration)Compared to the previous self weight roller, the volume and weight have been reduced, but the compaction effect has been improved obviously.
Q:20T roller machine price
I own a XCMG 202j 20T roller, 09 years to buy: usually 250 yuan per hour / month, monthly 16000 yuan
Q:Roller brand at home and abroad
World rollers are well-known manufacturers mainly in Germany, Sweden, the United States and japan. The roller mechanism before several manufacturers mainly in the United States Ingersoll Rand (INGERSOLL RAND, Ingersoll Rand note: the roller's business in 2007 sold to Volvo building Volvo equipment) and Caterpillar (CATERPILLAR), Germany's BMW (BOMAG) and Wittgen (WIRTGEN), Sweden Dynapac (DYNAPAC note: Atlas Copco, Dynapac has been acquired), Japan, Sakai (SAKAI).
Q:What's the use of this roller? What is the difference between a roller and an ordinary roller?
This is a convex block roller, is adding a layer with a convex block device mounted on the original circular surface of the base, consisting of two semicircle. This roller is mainly used for the compactness of roadbed. In general the main base material is not easy to be smooth when compacting it will be used
Q:Roller driving skills 100
First of all, be sure to find a good reference, aimed at the past, and the other is to relax and look at the far point. It depends on the big direction so it will be straight up.
Q:Why should we use the rubber tyred roller in the construction of the asphalt pavement?
At present, the latter two are widely used in construction.The following is a steel wheel roller, which is in front of the paver. The following table shows two rubber tyred rollers. Roller's purpose: 1. to achieve the required density (usually controlled by compaction); 2. press out the smooth surface.General compaction includes initial pressure, re pressure and final pressure. The final pressure is to remove the traces of rollers, the road is kept smooth, generally can not be omitted, and the use of steel wheel roller. If the initial pressure can meet the density requirements, there is no need to re pressure, but generally still maintain these three steps.
Q:Working principle of vibratory pump and vibrating motor
The motor drives the gear pump of the hydraulic oil circulation, and then to the vibrator here, the hydraulic oil circulating through the hydraulic gear into rotary force (hydraulic motor, and the motor is also popular that a truth, only substation, power transformation) let you through a transmission shaft. To an eccentric rotor to rotate, so there is a shock.
Q:The rollers are divided into several types
The routine use: single steel wheel used in roadbed, double steel wheel and rubber wheel. But according to the construction in the oil surface different processes and materials, double steel wheel and the rubber wheel will be used in the roadbed.
Q:What is the difference between roller vibration and static pressure?.
Vibratory roller is to use its own gravity and vibration compaction of various construction and road construction materials. In highway construction, vibratory roller is suitable for compaction of various non cohesive soil, crushed stone, crushed stone mixture and various asphalt concrete, and is widely used.Static pressure: 1 tons roller weight 1 tons, static pressure strength is 1 tonsVibration: 1 tons roller, vibration force 2.5 tons, vibration pressure strength 1+2.5=3.5 tons.The working principle of vibratory roller1, the emergence of vibration - mass eccentric + rotationIn the picture, the big circle is a vibrating wheel, and the blue green is an eccentric vibrator. When running at high speed, the eccentric steel force drives the big steel wheel to vibrate together, and generates exciting force.

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