Roller Bit Core Barrel for Hard Rock Drilling

Roller Bit Core Barrel for Piling rigs

Name: Roller Bit Core Barrel
Steel Material: Q355B 
Diameter: 600mm to 3000mm, customized according to your requirements
Kelly Box: 130×130, 150×150, 200×200, (optional)
Model of Roller Bits for choose: 5 1/2’’, 5 7/8’’, 6 1/2’’, 8 1/2’’, 12 1/4’’, 12 1/2’’, 17 1/2’’
Application: For bored pile, Rotary drilling rig, Pile foundation and Piling rig. 
Suit with the medium or slightly weathered rock, hard or super hard bedrock

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Product Details

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Feature:

1. Cutting rings with rock drilling bits and releases the internal stress of rock.

2. Cutting with the method of rolling and squeezing can increase the anti-wear ability of the barrel.

3. Small barrel facilitates the coring operation, large barrel performs stage breaking.

4. The barrel design incorporates spiral wear-resistant strips to prevent abrasion and extend the lifespan of the barrel

5. Suit with the medium or slightly weathered rock, hard or superhard bedrock.

Advantages:

1. Using raw materials from a top-leading raw steel factory ensures the exceptional structural strength of our core barrel.

2. The use of 42CrMo tungsten carbide as the raw material for the cones suggests high durability and wear resistance, which are crucial for drilling through tough materials like those with compressive strengths ranging from 80 to 160 MPa.

3. We integrate hard-facing strips into our drilling buckets for superior wear protection, ensuring high wear resistance in demanding conditions.

4. A specialized design feature of the drilling teeth. This design may enhance the efficiency and effectiveness of the drilling process by optimizing the angle of the drilling teeth.

5. With a modern workshop, advanced production equipment, and automated robot welding technology, we guarantee a higher quality standard for our drilling tools, ensuring precision and reliability in every product.

Specification:

Roller Bit Core Barrel designed for rotary drilling rigs and hard rock foundation piling applications.

Pile Diameter （mm）	Shell Height (mm)	Shell Thickness (mm)	Stiffening Ring Thickness (mm)	Stiffening Ring Height (mm)	Teeth Quantity ( Piece )	Weight (KG)
⌀ 600	1200	20	40	250	4	650
⌀ 800	1200	20	40	250	6	850
⌀ 900	1200	20	40	250	8	1000
⌀ 1000	1200	20	40	250	8	1100
⌀ 1200	1200	20	40	250	10	1350
⌀ 1500	1200	20	40	250	12	1700
⌀ 1600	1200	20	40	250	14	1900
⌀ 1800	1000	20	40	250	16	2000
⌀ 2000	800	20	40	250	18	1900
⌀ 2200	800	20	40	250	20	2160
⌀ 2500	800	25	40	250	20	2350
⌀ 2800	800	25	40	250	24	3050
⌀ 3000	800	30	40	250	26	4250

Product Details:

Heavy duty roller bit core barrel featuring a reinforced steel body for demanding rock drilling operations.

Production Line:

Core barrel with roller bits arranged along the cutting edge to improve rock breaking performance during rotary drilling. Roller cone bits mounted on a core barrel for efficient hard rock drilling in foundation construction projects. Roller bit core barrel cutting structure designed to penetrate hard rock formations during bored pile drilling.

Workshop:

Rock core barrel with wear resistant protection to reduce abrasion during continuous foundation drilling operations. High strength steel roller bit core barrel manufactured for heavy duty rotary drilling and deep foundation construction. Core barrel with roller cone bits positioned for stable cutting performance in challenging rock drilling conditions.

Packing and Delivery:

Roller bit core barrel assembly showing the connection between the cutting components and the reinforced barrel body. Large diameter roller bit core barrel for rotary drilling rigs used in bored pile and foundation construction. Hard rock roller bit core barrel for drilling through strong rock formations in deep foundation projects.

Roller bit core barrel for bedrock drilling and pile foundation construction with rotary drilling equipment. Roller bit core barrel for rotary drilling rig applications requiring reliable rock cutting and core barrel performance.