ST252J Road Roller BuyST252JRoad Roller at Okorder

ST252J Road Roller BuyST252JRoad Roller at Okorder

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 unit

Supply Capability:: 300 unit/month

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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.

4speed

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.

Inquies FAQ

My dearest friend, if you want to buy our tower cranes, please tell us the following parameters. And we will make the most suitable project for!

1. Building height or tower crane working height.

2. Max load capacity and tip load capacity.

3. Span or jib length

4. Other Special requirements

Q:I need a roller, but the search found different working principles of rollers: Hydrostatic roller is the most common is 3 steel wheels, produced by walking the compaction effect, vibration in rolling oil single steel wheel and double steel wheel, can static pressure, but also can make the steel wheel vibration, there are two stalls, high vibration and low vibration, high Zhenneng reached more than double the compaction effect now, hydrostatic roller are eliminated for many years.

Q:Strong earthquakes and small earthquakes can be used normally,: Suddenly a weak is the connecting shaft bearing fault vibration wheel these problems in mechanical problems, there is a problem with this hydraulic system pressure test to determine the need to carefully check the problems in professional roller I ask

Q:Roller cylinder is cylindrical, the width of the drum is 1.5 meters, the cross sectional diameter is 1.2 meters, if every minute to 10 laps, then 1 when the pressure of the road surface number of square meters?: Solution: the bottom perimeter is 3.14 * 1.2=3.768 (meters)The lateral area of the cylinder is 3.768 * 1.5=5.652 (square meters)10 turns per minute, you can find one minute, the area of the road is 5.652 * 10=56.52 (square meters)1 hours =60 minutes56.52 x 60=3391.2 (square meter)Answer: 1 hours, 3391.2 square meters of road surface pressure

Q:The asphalt pavement here is divided into three layers, the two layer with rubber tire roller for rolling, the surface layer is needed for the rubber roller, wherein the two layer is below AC, the top layer is SMA series.: The asphalt aggregate ratio and slag amount is more than 6% SMA can not use leather wheel, this is the result of the test section, the rub mastic floating that the depth of the surface structure reduces in this case leather wheel, skid resistance is reduced, skin wheel function is rubbing that is dense, so more suitable for dense graded mixture.

Q:Brief introduction of vibratory roller with double steel wheels: Double steel wheel, high frequency;Extraordinary compaction efficiency;Automatic starting system;Vibration frequency meter patent design;Unique sprinkler system.Run heavy l volume: 11300 kgSteel wheel width: 2000 mmVibration frequency: 42HZ/63.3HZ

Q:Who knows, what is the best way to press the water stable?: The current widespread use of single steel wheel roller compaction water stability, but if the water layer thickness is less than 25cm, you can use the double steel wheel Dynapac compaction, compaction mode with low frequency and high vibration, the efficiency is doubled. Although the rental of double steel wheel is more than twice as much as that of single steel wheel, it is much more cost-effective to compare it with efficiency and cost.

Q:Excavators, forklifts, bulldozers, rollers with the same tonnage fight who badly rank: when other machine ran first and then driving the main digging sub floor, kill the driver, do not close machine line, so this is a boring the problem is driving technology, the two is to have strategic thinking, the three is not afraid of death.

Q:Now the police, when the general work will be put out, began to work this afternoon has been long bright: This is the failure lights, according to the situation you say there should be several possibilities: oil filter clogging, filter clogging, pressure sensor failure or blockage in oil, oil pump does not turn you find instructions have introduced one by one investigation

Q:The working principle of roller: Freon compression, using compression method Freon liquefaction, heat release,The liquid Freon enters the air conditioner, the indoor unit or the refrigerator to vaporize and absorb heat and cool downThe vaporized Freon enters the compressor and compresses and liquefy, giving off heat, thus reciprocating

Q:It should be the shape of the roller! Ask friends or have other recommended rollers?: 31 new roller model, eighth generation full hydraulic single drive single steel wheel roller (SSR200AC-8, SSR220AC-8)

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