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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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.

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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: How much is the rubber tyred roller?: In the Xuzhou area, the private owner of the road roller is opened, and the annual road roller is 5000 yuan a year

Q: The front wheel of a road roller is known to be cylindrical, with a width of 2.5 meters and a diameter of 1.2 meters. The front wheel rotates 8 minutes per minute. The 1. roller takes 20 minutes from one end of the road to the other. How many meters is the length of the road?. 2. what is the area of the road roller from one end to the other end of the road?. Process and description: 4, from one end of the road to the other end, the area of the road is equal to the length of the front wheel and the width of the wheel, or =602.88*2.5=1507.2 (square meter).For reference.

Q: I would like to ask, 18T roller layered centimeters, compaction is the most appropriate?: 18T roller is 300 cm layered and compacted most suitable

Q: The role of rubber tyred roller is used for water steady rolling: Rubber roller and double steel roller is generally in asphalt concrete pavement use; rubber tire roller plays a role, enhance the degree of fit between aggregate and asphalt concrete, reinforced compactness; double steel roller has the effect of asphalt concrete.

Q: How do the rollers see dual vibration, single vibration, double drive, single drive, double steel single steel?: Single steel wheel vibration: a steel wheel, two rubber wheelsDouble shock generally no rubber wheels, all steel wheelThere is no rubber wheels are mainly used to distinguish, more intuitiveThe main difference between single drive and double drive is on the steel wheel in front. There is only one pump on the single drive steel wheel,Both driven steel wheels have pumps on both sides

Q: Why should we use the rubber tyred roller in the construction of the asphalt pavement?: Initial pressure is generally used by steel wheel rollers, but there will be a phenomenon of passing, that is, the front of the roller mixture is subjected to lateral movement of pressure, and may cause cracks after compaction. Also useful for the initial pressure of the rubber wheel, but because the initial temperature is higher, the mixture easily adhere to the tire, and the traces are not easy to remove, so there is a lot of opportunities for the rubber wheel to re pressure.I think there are two main advantages of rubber wheels:1., rubber wheel compaction is a kind of kneading type compaction, compaction effect is good, and can remove the steel wheel compaction generated small cracks;2., the rubber wheel compaction will make the mixture of asphalt, mineral powder, fine aggregate and other forms of adhesive floating, so that the upper surface more closely, waterproof better.The disadvantage or non applicability of a rubber tyred roller:

Q: How many tons of pressure are there when they are opened?For example: take a site earthwork flat, 20 tons of press vibration can affect on soil 30cm within the excavation area of soil compaction?, not loose.: A lot of people are roller tonnage misleading, principle of roller steel wheel depth of influence is the amplitude, amplitude and the deeper depth of influence.

Q: The rollers are divided into several types: The roller from the area can be divided into vibroll (RCC) and static (rolling), road roller vibration roller can be divided into 2 6 8 amplitude amplitude, amplitude, and refinement is based on weight and amplitude, exciting force and other distinguished models.

Q: How is the tonnage of the roller machine calculated? Forget to know the answer! Thank you: Each manufacturer's parameters are not the same, about 500kN, small vibration in about 250. The tonnage of a roller means its total weight, allowing a 3% error.

Q: Xugong has 22 tons of rollers weighing several tons: 22 tons is the nominal weight of the factory, the actual weight is about 21.5 tons. Generally speaking, the weight of more than 21 tons, even 22 tons. Because I am a second-hand roller, I still know about this. (Shanghai the Great Wall second-hand construction machinery company)

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