Construction Kelly Bar for Rotary Drilling Rig Interlocking/Friction

Introduction

The construction Kelly bar is an indispensable and crucial component for rotary drilling rigs, specifically designed to meet the demanding requirements of modern construction projects. This Kelly bar is available in both interlocking and friction types, offering versatility and adaptability to various drilling conditions. Whether you are working on a large - scale infrastructure project or a smaller building construction, this Kelly bar will significantly enhance the efficiency and performance of your rotary drilling rig.

Product Features

Durable Material

Our construction Kelly bar is crafted from high - strength alloy steel. This material is known for its excellent toughness and wear - resistance. It can withstand the high - pressure and high - torque forces generated during the drilling process. The alloy steel construction ensures that the Kelly bar can operate in harsh environments, such as rocky terrains or areas with high soil compaction, without suffering from premature wear or damage. This durability translates into a longer service life, reducing the need for frequent replacements and saving you both time and money in the long run.

Interlocking/Friction Design

The availability of both interlocking and friction designs gives you the flexibility to choose the most suitable option for your specific drilling needs. The interlocking type provides a more secure connection between the Kelly bar and the drilling rig. It ensures a precise transfer of torque, which is essential for accurate and efficient drilling. This design is particularly useful when drilling in hard or uneven ground conditions, as it can prevent slippage and maintain a stable drilling operation.

On the other hand, the friction type of Kelly bar offers a simpler and more cost - effective solution. It relies on friction to transmit torque, which is suitable for less demanding drilling applications. The friction design is easier to install and maintain, making it a popular choice for smaller projects or when quick setup is required.

Precise Manufacturing

Each Kelly bar is manufactured with high precision. The dimensions of the bar are strictly controlled to ensure a perfect fit with the rotary drilling rig. This precise manufacturing not only guarantees smooth operation but also reduces the risk of mechanical failures. The surface finish of the Kelly bar is also carefully processed to minimize friction and prevent the accumulation of dirt and debris. This helps to maintain the performance of the bar over time and ensures consistent drilling results.

Easy Maintenance

We understand the importance of easy maintenance in construction equipment. Our Kelly bar is designed with this in mind. It has accessible lubrication points, which allow for regular lubrication to reduce friction and wear. The modular design of the Kelly bar makes it easy to disassemble and replace individual parts if necessary. This means that you can quickly address any issues that may arise during the drilling process, minimizing downtime and keeping your project on schedule.

Technical Specifications

Dimensions

The length of the Kelly bar can be customized according to your requirements, typically ranging from 10 meters to 30 meters. The outer diameter also varies, usually between 200mm and 500mm, depending on the size and power of the rotary drilling rig it is intended for.

Torque Capacity

The torque capacity of the Kelly bar is an important parameter. Our Kelly bars are designed to handle high torques, with a range of 100 kN·m to 500 kN·m. This high torque capacity enables the drilling rig to penetrate hard soil layers and rocks effectively.

Weight

The weight of the Kelly bar depends on its length, diameter, and design. Generally, a standard Kelly bar weighs between 2 tons and 10 tons. The weight is carefully balanced to ensure stable operation of the drilling rig and to prevent excessive stress on the rig's components.

Application Scenarios

This construction Kelly bar is suitable for a wide range of construction applications. It can be used in foundation construction for buildings, bridges, and other large - scale structures. In the construction of high - rise buildings, the Kelly bar is used to drill deep foundation holes to provide a stable base for the structure. It is also commonly used in the construction of transportation infrastructure, such as highways and railways, for tasks like pile - driving and soil exploration.

In addition, the Kelly bar can be used in geotechnical engineering projects, such as soil sampling and in - situ testing. Its ability to drill accurately and efficiently makes it an ideal tool for these types of projects, where precise data collection is crucial.

Compatibility

Our Kelly bar is compatible with a variety of rotary drilling rig models. It can be easily integrated with different brands and types of drilling rigs, as long as the relevant technical specifications are matched. This compatibility ensures that you can upgrade your existing drilling rig with this high - quality Kelly bar without having to invest in a new rig. Whether you have a small - scale drilling rig for residential construction or a large - scale rig for industrial projects, our Kelly bar can be a valuable addition to your equipment fleet.