Qingdao KOTAI Heavy Industry Machinery Co., Ltd. was established in August 2003. It is a national high-tech enterprise dedicated to the research and manufacture of road construction machinery and high-end structural parts. The company's positioning is to continuously meet the differentiated needs of customers around the world, and to use "quality to lead the future" as the company's development direction.
Our Products
The KOTAI product line of more than 100 machines, attachments, power systems and parts reflects our commitment to our customers' success. We will remain the leader by helping our customers meet their needs with durable and reliable equipment.Product offerings include articulated trucks, backhoe loaders, dozers, engines, excavators, generators, motor graders, skid steer loaders and wheel loaders.
OEM Services
We have world-class technology and custom services that can be tailored to your budget and goals.
Production Market
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.
Technical Support
Our team of experts is available to assist with troubleshooting, answer technical inquiries, and provide guidance.
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KP SERIES HYDRAULIC TYRE ROLLER |
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Fully hydraulic pneumatic tyred rollers |
Unit |
KP166 |
KP206 |
KP266H-2 |
KP306H-2 |
KP267H |
KP307H |
|
Maximum operation weight |
kg |
16000 |
20000 |
26000 |
30000 |
26000 |
30000 |
|
Ground pressure |
kPa |
200-400 |
200-440 |
250-420 |
250-460 |
250-420 |
250-460 |
|
Compaction width |
mm |
2270 |
2270 |
2750 |
2750 |
2750 |
2750 |
|
Climbing capability |
% |
20 |
20 |
20 |
20 |
20 |
20 |
|
I speed |
km/h |
0-7 |
0-7 |
0-7 |
0-7 |
0-7 |
0-7 |
|
II speed |
km/h |
0-15 |
0-15 |
0-14 |
0-14 |
0-14 |
0-14 |
|
Turning radius |
mm |
7500 |
7500 |
9000 |
9000 |
9000 |
9000 |
|
Tyre specification(matte) |
11.00-20 |
11.00-20 |
11.00-20 |
11.00-20 |
11.00-20 |
11.00-20 |
|
|
Tyre qty(f/r) |
4丨5 |
4丨5 |
5丨6 |
5丨6 |
5丨6 |
5丨6 |
|
|
Engine power |
kW |
105 |
105 |
140 |
140 |
140 |
140 |
|
Dimensions |
mm |
5200*2270*3350 |
5200*2270*3350 |
5200*2870*3380 |
5200*2870*3380 |
5200*2870*3380 |
5200*2870*3380 |

Adaptability: Tyred rollers can adjust their tire pressure to suit different types of materials, making them versatile for a wide range of compaction tasks, including soil, asphalt, and aggregates.
Compaction Control: The ability to fine-tune tire pressure allows for precise control over compaction density, ensuring that construction projects meet specific technical requirements and standards.
Even Pressure Distribution: Tyred rollers distribute compaction pressure evenly across the surface, reducing the risk of over-compaction or under-compaction, which can be crucial for achieving uniform and durable road surfaces.
Speed and Efficiency: These rollers can cover a larger area in less time compared to some other compaction equipment, increasing efficiency on construction sites.
High Tractive Force: The rubber tires provide excellent tractive force, allowing the roller to work effectively on steep grades and challenging terrains.
Reduced Surface Damage: The flexible rubber tires minimize surface damage and scuffing, which is essential for achieving high-quality finishes on asphalt and other delicate materials.
Consistent Compaction: These rollers can maintain consistent compaction density over large areas, which is vital for the long-term durability of roads and pavements.
Increased Manoeuvrability: Tyred rollers are more maneouverable than steel drum rollers, due to the pivoting power of their wheels, which makes them ideal for use in tight spaces or on projects with a lot of turns.
Road Construction
For building smooth and stable roads, tyred rollerss are often used after the asphalt has been laid down. Their rubber tires ensure that the pavement is compacted evenly and will last longer.
Parking Lots and Driveways
Tyred rollerss are perfect for small-scale projects like parking lots and residential driveways. Their ability to work in confined spaces and provide smooth compaction is especially valuable for these types of projects.
Soil Stabilization
Tyred rollers can also be used for soil stabilization, providing ground preparation for foundations, embankments and dams. The roller's features, particularly the ability to adjust the ballast and contact pressure of the pneumatic tires, make them ideal for compacting a range of soil types. The result is a firmer base that provides the necessary support for the new structure.
Runway Construction
Tyred rollers are also used in runway construction at airports. The compaction level of airport runways needs to be precise as airplane take-off and landing exert immense pressure on the runway. The precise compaction enabled by tyred rollers helps prevent the deformation and rutting of the runway, which maintains its safety.
Rubber Tires: The most notable feature of tyred rollers is their rubber tires. These tires allow the machine to conform to uneven surfaces, distributing weight and pressure evenly. This helps avoid air pockets or uneven compaction that could weaken the surface.
Ballast: Ballast is extra weight, often in the form of water, sand, or steel, that can be added or removed to adjust the roller’s compaction force. For softer surfaces, less ballast is needed, while more weight is added for harder, more resistant surfaces.
Hydraulic System: Tyred rollers have a hydraulic system that controls the roller’s movement and tire pressure. The hydraulic system plays a critical role in adjusting the weight and pressure applied to the surface during compaction.
Engine: The engine provides the power to propel the roller.
Frame and Body: The roller has a heavily loaded body and a frame that supports the tires and other components. Some models have adjustable ballasting systems integrated into the body.
Check Tire Pressure Regularly
Since rubber tires are the main tool for compaction, maintaining proper tire pressure is essential. Low or uneven tire pressure can lead to poor compaction results and uneven wear.
Inspect Ballast Levels
Ensure the ballast is adjusted correctly based on the material being compacted. If the ballast is not managed properly, it could affect the compaction effectiveness.
Regular Lubrication
Keep all moving parts lubricated to avoid friction that could cause wear and tear. Make sure to check fluid levels, especially in the hydraulic system.
Routine Inspections
Perform daily or weekly checks for wear and tear on parts like tires, engines, and hydraulic components. Catching issues early can prevent costly repairs later.


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