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Kelly Bars
Kelly bars are crucial components connecting the power head and drill bit of a rotary drilling rig, responsible for precisely transmitting enormous torque and pressure to the bottom of the hole. We offer a full range of friction type and interlocking/lock type Kelly bars suitable for various geological conditions, from clay and sand to hard rock formations.
Want to drill ultra-deep holes (over 60 meters)? Choose a friction-type Kelly Bar for smooth extension and retraction, doubling efficiency.
Want to drill through hard rock or boulder layers? Choose a mechanical lock-type Kelly Bar with pressurization function, penetrating rock as easily as drilling soil.
Features and advantages of kelly bar:
- Superior steel, stronger torsional resistance: Reject inferior tubing! Crafted from high-strength alloy seamless steel tubes (St52 equivalent), the drill rod remains rock-solid even under extremely high torque.
- Wear-Resistant Technology: Hard facing welding on both inner and outer keys ensures precise fit and special heat treatment between drill rod sections, significantly extending service life.
- OEM Services
| 1.Interlocking Kelly Bar Main Technical Parameter | ||||
| Identification No. | Torque(ton.m) | O.D.(mm) | Sections | Drilling Depth (m) |
|---|---|---|---|---|
| IK 36/470/3/27~28 | 36 | 470 | 3 | 27~28 |
| IK 36/470/4/36~72 | 36 | 470 | 4 | 36~72 |
| IK 25/440/3/36 | 25 | 110 | 3 | 36 |
| IK 25/440/4/50 | 25 | 440 | 4 | 50 |
| IK 28/394/3/24~48 | 28 | 394 | 3 | 24~48 |
| IK 28/394/4/32~65 | 28 | 394 | 4 | 32~65 |
| IK 18/377/3/36 | 18 | 377 | 3 | 36 |
| IK 18/377/4/50 | 18 | 377 | 4 | 50 |
| IK 22/406/3/36 | 22 | 406 | 3 | 36 |
| IK 22/406/4/50 | 22 | 406 | 4 | 50 |
| IK 36/508/4/60 | 36 | 508 | 4 | 60 |
| Other sizes can be manufactured as per customer demand. | ||||
| 2.Friction Kelly Bar Main Technical Parameter | ||||
| Identification No. | Torque(ton.m) | O.D.(mm) | Sections | Drilling Depth (m) |
| FK 36/470/3/27~28 | 36 | 470 | 3 | 27~28 |
| FK 36/470/4/36~72 | 36 | 470 | 4 | 36~72 |
| FK 25/440/3/36 | 25 | 440 | 3 | 36 |
| FIK 25/440/4/50 | 25 | 440 | 4 | 50 |
| FK 25/440/5/65 | 25 | 440 | 5 | 65 |
| FK 28/394/3/24~48 | 28 | 394 | 3 | 24~48 |
| FK 28/394/4/32~65 | 28 | 394 | 4 | 32~65 |
| FK 18/377/3/36 | 18 | 377 | 3 | 36 |
| FK 18/377/4/50 | 18 | 377 | 4 | 50 |
| FK 22/406/3/36 | 22 | 406 | 3 | 36 |
| FK 22/406/4/50 | 22 | 406 | 4 | 50 |
| FK 36/508/4/60 | 36 | 508 | 4 | 60 |
| FK 36/508/5/75 | 36 | 508 | 5 | 75 |
| Other sizes can be manufactured as per customer demand. | ||||
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SERVICES
Services
Professional and reliable after-sales service
We provide a comprehensive and responsive after-sales service to ensure your operations run smoothly. Our support team offers 12-hour online service to address your inquiries promptly, regardless of your location worldwide.
Additionally, we have our own professional after-sales engineers who can be dispatched to your site as required. Our on-site services include installation, commissioning, operator training, and pile testing, all tailored to meet your specific needs and ensure optimal performance of your equipment.
Production-to-shipment tracking and feedback process
We provide comprehensive, end-to-end tracking and regular updates throughout the entire process, from production initiation to final shipment.
Our systematic tracking covers each critical stage: assembly, quality inspection, testing, packaging, and final loading for dispatch. At every milestone, we proactively provide detailed feedback, including photos, videos, and progress reports.
This transparent communication ensures you are fully informed and can plan confidently for the seamless arrival of your equipment, eliminating uncertainty and facilitating a smooth project timeline.
Professional pre-sales services
Our pre-sales service is designed to optimize your procurement process from the very beginning. By integrating the expertise of our sales personnel with our technical engineering team, we provide professional consultation based on your specific project requirements.
This collaborative approach significantly reduces your upfront selection costs and improves overall efficiency. We focus on delivering precise product recommendations, ensuring the proposed equipment is the most suitable and effective solution for your project needs, ultimately helping you make a well-informed and confident purchasing decision.
