Full Hydraulic Tire Roller

Construction of roads and highways basically consists of 3 phases, rough grading (or earthmoving), fine grading (which includes sub-grade preparation), and surfacing, which can include gravel, concrete, asphalt, or any combination of the three. Compaction is also a major element of all road and highway construction. Operators must be capable of performing their work in a manner that will provide for maximum compaction with required skills and suitable roller equipment for solid paving operation.

The usage of Steel drum roller by road contractors to compress road surface in other to achieve density faster and for paving or smoothing job is common in Nigeria except for some high profile construction companies who deploys quality and suitable construction rollers to achieve perfect paving job. The Steel drum roller compactor is best fit to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations. But to achieve a more solid and excellent road paving job, PNEUMATIC ROLLER is a perfect roller tool regularly deployed by standard construction companies to perfect their paving job.

The Reason for Pneumatic Roller
The adoption of Pneumatic Roller particularly in the construction of roads is very necessary to avoid timely road damages, pot holes, road breakage as a result of poor construction of the roads. In other word using Pneumatic Roller for road construction is to ensure:

• Maximized road density
• High performance and efficiency; no unnecessary clearances
• Hit mats at the optimal temperatures
• Ensure complete coverage and smoothness
• Simplify night-time operation

Pneumatic compactors have it that there is little bridging effect between the tires. Therefore, they seek out soft spots which may exist in the fill. For this reason, they are sometimes referred to as "proof" rollers.

Another advantage is that Pneumatic Rollers can be used on both soil and asphalt so a road building contractor can save by having one compactor for both stages of construction – base and asphalt.

Pneumatic, rollers used with steel drum rollers in certain applications provide contractors with a better base before paving achieve a better density or compaction and improve the look of the finished product.

In a nut shell, Pneumatic Roller is highly necessary in the construction of road to achieve maximum density and excellent smoothness of road that can endure for ages. And there is currently a brand of Pneumatic Roller equipment with quality and dynamic features in Nigeria that is perfect for road paving job (XGMA Pneumatic Roller)

Driving comfort
Spacious and bright cab features wide view and comfort. The operation can absolutely avoid rolling the curb and the compacting blind corners.

Excellent performance
Adopting the pneumatic tyre to compact the layer will not damage the compacted materials. The compact performance can be improved by adding or reducing the counterweight and changing the inflation pressure of the tyres. Because of the kneading effect produced by the tyre's elasticity, the material displacement will be produced in all directions, forming even dense surface without cracks, which can prolong the service life of the road.

Adopt the front wheels swing mechanism. When the machine works on rough road, the mechanism ensures the even ground pressure, which can make the materials be compacted evenly.
The optional international leading infrared tyre heating system realizes the no water sprinkling work of the compactor, and improves the density and service life of the road.

If a job's worth doing, it's worth doing right, right? And every building project starts with a solid foundation. That's why effective soil compaction is so crucial. Compaction helps to provide a flat, level surface with maximum density and load-bearing capacity on which to build.

But when it comes to compaction, it's not as simple as just choosing the 'best' roller. There's no one-size-fits-all solution for every site. Each job is unique and requires the right equipment to deliver the best result. Regardless of whatever the end product of the project is, the goal of compaction is to compact a surface in the fewest number of passes possible, in order to save on time and fuel costs. Choosing the right compaction roller to achieve this means assessing several factors.

What factors affect soil compaction?
Whether it's a small backyard landscaping project, a stretch of highway, or an industrial-scale high-rise complex, the scope of compaction projects is a very broad spectrum. On any given site, potential variables include:

Soil type: While it might seem obvious, the nature of the soil you're working with has a strong bearing on what equipment to use. For example, padfoot rollers are best suited for more cohesive soils like clay, whereas smooth drum rollers are better for looser, granular bases like sand and gravel & mixed soils. The volume and depth of soil also dictates what equipment you should use. Note: Vibrating machinery may be needed to compact sandier soil because of its high permeability. Whereas high pressure compaction may be required to break up clumps and achieve greater density in a soil with low permeability, like clay.

Moisture level: When it comes to soil moisture, it's a fine balance. Optimum moisture content for soil compaction is generally between 12-25% for fine-grained soils and 7–12% for granular soils. When soil becomes saturated with water, the soil liquifies and can become too dense. When soil is too dry, it isn't able to bind together effectively. Think about the beach as an example – the hot, dry sand is too shifty, while wet sand at the water's edge is too muddy. But somewhere in between, there's a sweet spot for building sandcastles. Although suffice to say, managing soil moisture onsite is a little more sophisticated.

Project specs: This includes the size and nature of the job, project timelines, and necessary level of compaction. For example, are you compacting just in order to lay down some garden pavers or are you laying the foundations of a multi-storey building? Does the job have a deadline of two weeks or two years? Does the site have a combination of different base materials and will the finished product have multiple functions (e.g. building framework and roads). Addressing these kinds of questions will help determine what kind of roller – or how many – you'll need.

Site conditions: Take into account the space, including slope gradient and potential obstacles, such as trees, pipework, underground services or surrounding structures. Consider access points as well as the site itself – for instance, soft tyres may be required to avoid cracking concrete gutters in the vicinity.

What size compactor do I need?
As well as different styles of compactor, you also need to match the size of roller to your application. Naturally, smaller rollers are better suited to smaller sites with smaller lift thickness with limited access, or jobs requiring finer details. However, if a roller is too small, it may not exert enough force to compact the soil densely or deeply enough.

Larger rollers are favoured on big sites with larger lift thickness' where more ground needs to be covered and access isn't an issue. Naturally, heavier rollers are also able to compact larger areas more quickly, covering more surface area in fewer passes.

What happens if I use the wrong roller?
To fully illustrate the importance of choosing the right compaction roller, it's worth mentioning what can go wrong when using an ill-suited roller.

When under-compaction occurs, too much space or air is left in the soil base. As soil particles continue to move and settle into the spaces left by the lack of compaction, under-compacted soil may eventually shift and settle during or even after construction. This may result in damage to pipes and other underground structures, as well as cracks in building walls and floors – leaving structures unsafe or even unusable.

On the other hand, over-compaction will cause de compaction of your material by turning it into a powder like state that will also result in unstable finish leading to premature job failure & erosion.

Since the establishment of the company, Kotai Heavy Industry has always adhered to the principle of people-oriented and customer demand-oriented. The rollers it produces are exported to more than 60 countries in the Middle East, Africa, America, Southeast Asia, Central Asia, etc., and have won the title of "China's Construction Machinery Industry Users" for many consecutive years. Annual TOP50 "Technological Innovation Gold Award, Golden Word of Mouth Award, Application Contribution Gold Award, Best Product Appearance Design Award" and "National Torch Plan Project Award", etc.