CORE BARRELS — TYPE 02
Core Barrel with Roller Bits
Core barrel with rolling cutter bits for rotary foundation drilling in suitable rock formations. The roller-bit type, barrel dimensions and connection are selected according to the rock profile and drilling rig specifications.
DIAMETER RANGE
600 – 2500 mm
ROCK SUITABILITY
Project-specific
WALL DESIGN
Single-wall, reinforced
TEETH TYPE
Rolling cutter bits
BODY MATERIAL
Q355 / Hardox 400
KELLY BOX
Universal interchangeable
Product Overview
The ALVRIQ Core Barrel with Roller Bits is purpose-built for coring through hard and weathered rock formations where standard core barrels cannot perform. Tungsten carbide-tipped teeth deliver point-load concentration that fractures rock efficiently, while the reinforced barrel wall maintains structural integrity under high-torque drilling conditions.
The barrel body is fabricated from Q355 structural steel with Hardox 400 wear plates on the cutting edge and barrel wall. Carbide teeth are socket-mounted and rotate freely to self-sharpen, distributing wear evenly across the cutting face for extended service life.
A universal kelly box connection (interchangeable with SANY, Zoomlion, XCMG, and BAUER rotary drilling rigs) ensures broad compatibility without modification. Each barrel is concentricity-tested before dispatch to guarantee straight, true coring performance.
At a Glance
Key Features
Rolling Cutter Bits
Carbide-tipped teeth with self-rotating socket mount. Each tooth turns freely during drilling to self-sharpen and distribute wear evenly, maximizing cutting life in abrasive rock.
Reinforced Barrel Wall
Thicker barrel wall with Hardox 400 reinforcement handles high-torque drilling without deformation. Maintains barrel concentricity for straight, true coring in hard formations.
Hardox 400 Wear Protection
400 HBW wear-resistant steel on cutting edge and barrel wall. Combined with hardfacing overlay on high-friction zones for extended service life in abrasive rock conditions.
Universal Kelly Box
Interchangeable kelly box fits SANY, Zoomlion, XCMG, and BAUER rotary drilling rigs. No adapter needed — simply bolt on and start drilling.
Suitable Ground Conditions
Recommended For
Not Recommended For
Specifications
| Diameter (mm) | Core Length (mm) | Teeth Count | Tooth Type | Wall Type | Weight (kg) |
|---|---|---|---|---|---|
| 600 | 1000 | 12 | Carbide tipped | Reinforced single | ~160 |
| 800 | 1200 | 14 | Carbide tipped | Reinforced single | ~240 |
| 1000 | 1200 | 16 | Carbide tipped | Reinforced single | ~350 |
| 1200 | 1500 | 18 | Carbide tipped | Reinforced single | ~480 |
| 1500 | 1500 | 22 | Carbide tipped | Reinforced single | ~700 |
| 2000 | 1500 | 28 | Carbide tipped | Reinforced single | ~1,100 |
* Specifications are indicative and may vary by configuration. Custom diameters up to 2500 mm available on request.
How to Order
Specify Requirements
Tell us your drilling rig model, required core diameter, and rock formation type. We’ll recommend the optimal carbide tooth configuration and wear package.
Confirm Quote
Receive a detailed quotation within 24 hours including specifications, lead time, and shipping terms. Confirm and proceed to production.
Production & Delivery
Manufacturing takes 15–25 days depending on specifications. Quality-tested and shipped to your project site worldwide.
Frequently Asked Questions
What is a core barrel with roller bits used for?
A roller-bit core barrel uses rolling cutters for annular rock cutting in rotary foundation drilling. Cutter selection depends on ground characteristics and rig capabilities.
How do I select the right roller bits?
Consider rock strength, abrasiveness, fracture conditions, drilling torque, diameter and the required cutter configuration.
What details are needed for a quotation?
Provide borehole diameter, rig model, kelly box dimensions, rock profile and quantity for configuration review.
Related Core Barrels
Other barrel types you might be interested in.
Ready to Order?
Send us your rig model, diameter requirements, and rock formation details. We’ll provide a detailed quote within 24 hours.
Or email: sales@alvriq.com