ALVRIQ 13
Telescopic Kelly Bars for Rotary Drilling Rigs
ALVRIQ Kelly bars are telescopic drill rods designed to transmit torque and axial force from the rotary drilling rig to the drilling tool at the bottom of the borehole. The telescopic design enables drilling at different depths — each section extends progressively as the borehole deepens, allowing a compact rig to achieve deep foundation piles.
Available in 4-section and 5-section configurations to suit different drilling depth requirements. Choose between interlocking Kelly bars for maximum torque transmission in hard ground, or friction Kelly bars for standard soil drilling operations. Each Kelly bar is engineered to match your specific rig model and drilling parameters.
At a Glance
PRODUCT CODE
ALVRIQ 13
FUNCTION
Torque & Axial Force
SECTIONS
4-Section / 5-Section
DRIVE TYPE
Interlocking / Friction
STEEL GRADE
Q690 / Hardox 500
DRILLING DEPTH
Up to 100 m
RIG BRANDS
SANY / Zoomlion / XCMG / BAUER
SURFACE TREATMENT
Anti-corrosion Coating
Key Features
Engineered for reliable torque transmission and drilling depth.
Telescopic Depth Design
Telescopic design with 4 or 5 sections for different drilling depths. Each section extends progressively, enabling compact rigs to achieve deep foundation piles.
Torque & Force Transmission
Transmits rotary torque and axial force from the drilling rig to the drilling tool at the borehole bottom. High-strength steel ensures reliable power delivery under demanding conditions.
Interlocking & Friction Options
Interlocking Kelly bars for maximum torque transmission in hard ground, or friction Kelly bars for standard soil drilling. Select the drive type that matches your project requirements.
Multi-Brand Compatibility
Compatible configurations for SANY, Zoomlion, XCMG, BAUER and other major rotary drilling rig brands. Custom-engineered to match your specific rig model and connection interface.
Configuration Options
Choose the right Kelly bar type for your drilling requirements.
Equipment Compatibility
Compatible configurations for major rotary drilling rig brands.
SANY
SR series rotary rigs
Zoomlion
ZR series rotary rigs
XCMG
XR series rotary rigs
BAUER
BG series rotary rigs
Other Brands
Custom configuration available
Specifications
Standard configuration — custom specs available on request.
| Parameter | Range / Options | Notes |
|---|---|---|
| Sections | 4-Section / 5-Section | Selected per drilling depth |
| Drive Type | Interlocking / Friction | Interlocking for high torque |
| Steel Grade | Q690 / Hardox 500 | High-strength wear-resistant |
| Max Drilling Depth | Up to 100 m | Depends on section count |
| Torque Rating | Varies by rig model | Matched to rig specifications |
| Rig Compatibility | SANY / Zoomlion / XCMG / BAUER | Other brands on request |
| Surface Treatment | Anti-corrosion coating | Extended service life |
| Connection Interface | Custom per rig model | Square / hex / pin connection |
Product Gallery
ALVRIQ Kelly bars in production and on-site.
Built in Our Factory. Not Outsourced.
Every ALVRIQ Kelly bar is manufactured in-house at our own facility. We control every step — from high-strength steel tube sourcing and precision machining to welding, heat treatment, and final assembly — ensuring consistent quality and full traceability.
- ✓Q690 / Hardox 500 high-strength wear-resistant steel tubes
- ✓Precision-machined drive keys and connection interfaces
- ✓Stress-relieving heat treatment for dimensional stability
- ✓Anti-corrosion surface treatment for extended service life
- ✓Each Kelly bar tested for straightness and torque capacity
15+
Years of
Manufacturing
8,000m²
Production
Facility
30+
Countries
Served
ISO
9001:2015
Certified
Ready to Specify Your Kelly Bar?
Tell us your drilling rig model, required drilling depth, and ground conditions. We’ll recommend the right Kelly bar configuration and provide a detailed quote within 24 hours.
Or email us directly at sales@alvriq.com
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