Description

Technical Parameters

Yuanxian High-tech Material Trading (Tianjin) Co., Ltd. is one of the leadnig manufacturers and suppliers of rotary piling rig-core barrel with roller-bit in China. We provide advanced materials made in China with low price. Welcome to wholesale bulk CE approved rotary piling rig-core barrel with roller-bit from our factory. Contact us for customized service and free sample.

Rotary Drilling Tools

Product Introduction

Material	- Auger Bits: Ideal for clay, silt, and sand layers. Single or double helix designs are available for different formation hardness levels. - Drilling Buckets: Suitable for sand layers, gravel, and highly weathered rock. Includes sand buckets and rock-embedded buckets.
Meet requirements	As your requirements, etc.
Specifications	We offer products with diameters ranging from 600mm to 3000mm and support customization.
Logo & package	As your requirements.
Other related products	Hydraulic Diaphragm Walling Grab, Casing Construction Equipment, Rotary Drilling Bits, Continuous Flight Augers, cermet rods, etc.

Product Specification

Core barrel with Roller-bit

Main application:rock hardness above 40Mpa sandstone,rock and Granite

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Upper Thickness mm	Lower Thickness mm	Flat teeth Number
Φ600	500	1700	1200	16	40	4
Φ800	700	1700	1200	16	40	6
Φ1000	900	1700	1200	16	40	8
Φ1200	1100	1700	1200	16	40	10
Φ1500	1400	1700	1200	16	40	12
Φ1800	1700	1700	1200	20	40	14
Φ2000	1900	1700	1200	20	40	16
Φ2200	2100	1700	1200	20	40	18
Φ2500	2400	1700	1200	20	40	20
Φ3000	2900	1700	1200	20	40	22

Single-cut / Double-cut Rock Drilling Bucket

Main application: Dense sand, granvle and medium up to weak/ strength rock.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Base plate Thickness/ mm	Cutting plate thickness/ mm	Flat teeth Number
Φ600	540	2000	1200	14	40	50	5/ 12
Φ800	700	2000	1200	14	40	50	7/ 14
Φ1000	900	2000	1200	16	40	50	9/ 20
Φ1200	1100	2000	1200	16	40	50	10/ 21
Φ1500	1400	2000	1200	16	40	50	14/ 24
Φ1800	1700	1800	1000	20	50	50	16/ 28
Φ2000	1900	1600	800	20	50	50	17/ 32
Φ2200	2100	1600	800	20	50	50	18/ 34
Φ2500	2400	1500	700	20	50	50	20/ 38
Φ3000	2900	1500	700	20	50	50	23/ 44

Single-bottom flat drilling bucket

Main application: clay and elastic mud soile.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Base plate Thickness/ mm	Cutting plate thickness/ mm	Flat teeth Number
Φ600	540	2000	1200	14	40	50	4
Φ800	700	2000	1200	14	40	50	4
Φ1000	900	2000	1200	16	40	50	6
Φ1200	1100	2000	1200	16	40	50	7
Φ1500	1400	2000	1200	16	40	50	9
Φ1800	1700	1800	1000	20	50	50	11
Φ2000	1900	1600	800	20	50	50	13
Φ2200	2100	1600	800	20	50	50	15
Φ2500	2400	1500	700	20	50	50	18
Φ3000	2900	1500	700	20	50	50	21

Cleaning Drilling Bucket

Main application: cleaning the bottom of the borehole.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Base plate Thickness/ mm	Cutting plate thickness/ mm
Φ600	540	2000	1200	14	40	50
Φ800	700	2000	1200	14	40	50
Φ1000	900	2000	1200	16	40	50
Φ1200	1100	2000	1200	16	40	50
Φ1500	1400	2000	1200	16	40	50
Φ1800	1700	1800	1000	20	50	50
Φ2000	1900	1600	800	20	50	50
Φ2200	2100	1600	800	20	50	50
Φ2500	2400	1500	700	20	50	50
Φ3000	2900	1500	700	20	50	50

Bucket with auger bottom

Main application: gravel.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Base plate Thickness/ mm	Cutting plate thickness/ mm	Bullet teeth Number
Φ1000	900	2000	1200	16	40	50	15
Φ1200	1100	2000	1200	16	40	50	17
Φ1500	1400	2000	1200	16	40	50	20
Φ1800	1700	1800	1000	20	50	50	23
Φ2000	1900	1600	800	20	50	50	25
Φ2200	2100	1600	800	20	50	50	28
Φ2500	2400	1500	700	20	50	50	31
Φ3000	2900	1500	700	20	50	50	37

Bucket with cone bottom

Main application: Mudstone, sandstone, gravel.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Base plate Thickness/ mm	Cutting plate thickness/ mm	Bullet teeth Number
Φ1000	900	2000	1200	16	40	50	15
Φ1200	1100	2000	1200	16	40	50	17
Φ1500	1400	2000	1200	16	40	50	20
Φ1800	1700	1800	1000	20	50	50	23
Φ2000	1900	1600	800	20	50	50	25
Φ2200	2100	1600	800	20	50	50	28
Φ2500	2400	1500	700	20	50	50	31
Φ3000	2900	1500	700	20	50	50	37

Tapered Drilling Bucket

Main application: clay and elastic mud soile.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Cutting plate thickness/ mm	Flat teeth Number
Φ600	540	2000	1200	14	50	4
Φ800	700	2000	1200	14	50	4
Φ1000	900	2000	1200	16	50	6
Φ1200	1100	2000	1200	16	50	7
Φ1500	1400	2000	1200	16	50	9
Φ1800	1700	1800	1000	20	50	11
Φ2000	1900	1600	800	20	50	13
Φ2200	2100	1600	800	20	50	15
Φ2500	2400	1500	700	20	50	18
Φ3000	2900	1500	700	20	50	21

Clam Drilling Bucket (soil)

Main application: soil, mudstone, sandstone, clay.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Cutting plate thickness/ mm	Flat teeth Number
Φ600	540	2000	1200	25/ 40	50	4
Φ800	700	2000	1200	30/ 40	50	6
Φ1000	900	2000	1200	30/ 40	50	7
Φ1200	1100	2000	1200	30/ 40	50	9
Φ1500	1400	2000	1200	30/ 40	50	10

Clam Drilling Bucket(rock)

Main application: gravel, boulder and medium mantle rock.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Cutting plate thickness/ mm	Flat teeth NO.
Φ600	520	2000	1200	25/ 40	50	8
Φ800	680	2000	1200	30/ 40	50	10
Φ1000	880	2000	1200	30/ 40	50	12
Φ1200	1050	2000	1200	30/ 40	50	15
Φ1500	1360	2000	1200	30/ 40	50	22

Cone bottom Bucket

Main application: gravel, boulder and medium mantle rock.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket Thickness/ mm	Lower thickness/ mm	Cutting plate thickness/ mm	Flat teeth NO.
Φ600	540	2000	1200	16	30	50	8
Φ800	700	2000	1200	16	30	50	10
Φ1000	900	2000	1200	16	30	50	12
Φ1200	1100	2000	1200	16	30	50	15
Φ1500	1400	2000	1200	16	40	50	22

Core Barrel with Bullet teeth

Main application: gravel, boulder and medium mantle rock.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Upper thickness/ mm	Lower Thickness/ mm	Bullet teeth Number
Φ600	520	1620	1200	16	40	8
Φ800	720	1620	1200	16	40	8
Φ1000	920	1620	1200	16	40	12
Φ1200	1120	1620	1200	16	40	12
Φ1500	1420	1620	1200	16	40	16
Φ1800	1720	1620	1200	20	40	20
Φ2000	1920	1620	1200	20	40	24
Φ2200	2120	1620	1200	20	40	24
Φ2500	2420	1620	1200	20	40	28
Φ3000	2920	1620	1200	20	40	32

Core Barrel with Roller-bit

Main application: rock hardness above 40Mpa sandstone, rock and Granite.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Upper thickness/ mm	Lower Thickness/ mm	Bullet teeth Number
Φ600	500	1700	1200	16	40	4
Φ800	700	1700	1200	16	40	6
Φ1000	900	1700	1200	16	40	8
Φ1200	1100	1700	1200	16	40	10
Φ1500	1400	1700	1200	16	40	12
Φ1800	1700	1700	1200	20	40	14
Φ2000	1900	1700	1200	20	40	16
Φ2200	2100	1700	1200	20	40	18
Φ2500	2400	1700	1200	20	40	20
Φ3000	2900	1700	1200	20	40	22

Grabing style core barrel

Main application: gravel, boulders.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Upper thickness/ mm	Lower Thickness/ mm	Bullet teeth Number
Φ800	720	1950	1550	25	40	8
Φ1000	920	1950	1550	25	40	12
Φ1200	1120	1950	1550	25	40	12
Φ1500	1420	1950	1550	25	40	16
Φ1800	1720	1950	1550	25	40	20
Φ2000	1920	1950	1550	25	40	24
Φ2200	2120	1950	1550	25	40	24
Φ2500	2420	1950	1550	25	40	28
Φ3000	2920	1950	1550	25	40	32

Double walled core barrel

Main application: Backfil, strength up to medium rock.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket thickness/ mm	Lower Thickness/ mm	Bullet teeth Number
Φ1500	1420	2000	1200	16	40	28
Φ1800	1720	2000	1200	20	40	28
Φ2000	1920	2000	1200	20	40	28
Φ2200	2120	2000	1200	20	40	28
Φ2500	2420	2000	1200	20	40	28
Φ3000	2920	2000	1200	20	40	28

Single cut flat auger

Main application: Soft to stiffsilt and clay, loose to mediumdense sand and gravel.

Diameter/ mm	Height/ mm	Pitch/ mm	Upper fight thickness/ mm	Lower fight Thickness/ mm	Flat teeth Number
Φ600	1850	400	20	30	2
Φ800	1850	400	20	30	2
Φ1000	1850	500	20	30	3
Φ1200	1950	500	20	30	4
Φ1500	1950	500	30	40	5
Φ1800	2550	600	30	40	7
Φ2000	2550	600	30	40	8
Φ2200	2550	600	30	40	9
Φ2500	2550	600	30	40	11

Double cut Rock Auger

Main application: dense sand, granvle and medium up to weak rock.

Diameter/ mm	Height/ mm	Pitch/ mm	Upper fight thickness/ mm	Lower fight Thickness/ mm	Bullet teeth Number
Φ600	1850	400	20	30	18
Φ800	1850	400	20	30	22
Φ1000	1850	500	20	30	24
Φ1200	1950	500	20	30	26
Φ1500	1950	500	30	40	31
Φ1800	2550	600	30	40	49
Φ2000	2550	600	30	40	57
Φ2200	2550	600	30	40	63
Φ2500	2550	600	30	40	69

Single cut Rock Auger

Main application: dense sand, granvle and medium up to weak rock.

Diameter/ mm	Height/ mm	Pitch/ mm	Upper fight thickness/ mm	Lower fight Thickness/ mm	Bullet teeth Number
Φ600	1850	400	20	30	8
Φ800	1850	400	20	30	10
Φ1000	1850	500	20	30	11
Φ1200	1950	500	20	30	13
Φ1500	1950	500	30	40	17
Φ1800	2550	600	30	40	20
Φ2000	2550	600	30	40	22
Φ2200	2550	600	30	40	24
Φ2500	2550	600	30	40	27

Two wing Belling Bit(rock)

Main application: soil, medium rock.

Size	Diameter/ mm	Reamed diameter/ mm	Height/ mm	Unfolded height/ mm
KD600	560	1200	1900	1550
KD800	760	1600	2160	1700
KD1000	960	2000	2650	1950
KD1200	1160	2400	3050	2050
KD1500	1460	3000	3600	2600
KD1800	1760	3600	3900	2650
KD2000	1960	4000	4200	2850

Three wing Belling Bit(rock)

Main application: soil, medium rock.

Size	Diameter/ mm	Reamed diameter/ mm	Height/ mm	Unfolded height/ mm
KD600	560	1200	1900	1550
KD800	760	1600	2160	1700
KD1000	960	2000	2650	1950
KD1200	1160	2400	3050	2050
KD1500	1460	3000	3600	2600
KD1800	1760	3600	3900	2650
KD2000	1960	4000	4200	2850

Three wing Belling Bit(soil)

Main application: soft to stiffsilt clay, loose to mediumdense sand and gravel.

Size	Diameter/ mm	Reamed diameter/ mm	Height/ mm
KD1500	1460	3000	3600
KD1800	1760	3600	3900
KD2000	1960	4000	4200

Three wing Belling Bit(roller cutter)

Main application: weak rock, granite.

Size	Diameter/ mm	Reamed diameter/ mm	Height/ mm
KD1500	1460	3000	3600
KD1800	1760	3600	3900
KD2000	1960	4000	4200

Air lift backcycling Roller Bit

Main application: medium up to weak rock.

Diameter/ mm	Bucket/ mm	Height/ mm	Bucket height/ mm	Bucket thickness/ mm	Roller Number
Φ800	650	2100	1200	20	6
Φ1000	850	2100	1200	20	6
Φ1200	1050	2400	1500	20	8
Φ1500	1350	2400	1500	25	8
Φ1800	1650	2600	1700	25	10
Φ2000	1850	2600	1700	25	12
Φ2200	2050	2600	1700	25	12
Φ2500	2350	2600	1700	30	14
Φ3000	2850	2600	1700	30	16

Product Details

- Main Structure: High-strength alloy steels such as 42CrMo and 20MnCr5, processed through forging and heat treatment to ensure excellent strength and toughness.

- Cutting Teeth: Tooth heads are made of YG series cemented carbide (e.g., YG11C), with hardness ≥ HRA90 and impact toughness ≥ 12J/cm². Roller cones are reinforced with tungsten carbide for superior wear resistance.

- Wear Resistance Treatment: Key components are overlaid with wear-resistant alloys or nano-coatings to extend service life and reduce replacement frequency.

- Structural Components: Bucket bodies and helical blades use Q345B or high-strength wear-resistant plates, balancing rigidity and lightweight design.

JT A series flat teeth and teeth holder

BE flat teeth and teeth holder

Tricone bit

Roller Bit

Advantages

Core barrel with Roller-bit – Key Advantages

1. Superior Core Quality & Recovery

Minimal Core Disturbance: The double-tube (or wireline) configuration features a stationary inner tube that remains isolated from the rotating outer barrel. This design protects the extracted core from torsional twisting, bending stresses, and vibrational disturbance-preserving the natural structural integrity of the sample.

Accurate Geological Representation: In fractured, foliated, or weathered hard rock, the roller-bit produces clean, intact core runs with clearly defined bedding planes, fracture orientations, and mineralization zones. This is essential for:

Geotechnical site investigations (dam foundations, tunnels, slopes)

Mineral exploration and resource estimation

Environmental and groundwater studies

Higher Core Recovery Percentage: The gentle crushing action, combined with efficient flushing, minimizes core washout and erosion, delivering core recovery rates consistently above 90–95% in competent hard rock.

2. Efficient Cuttings Removal & Cooling

Optimized Flushing Port Design: Strategically positioned fluid nozzles deliver high-velocity drilling media (water, mud, or air-mist) directly to the cutting face, ensuring:

Instantaneous cuttings evacuation-preventing regrinding, which is a primary cause of premature bit wear

Effective heat dissipation-reducing thermal stress on carbide inserts and roller bearings, thereby extending operational life

Cleaner Borehole: Efficient chip removal keeps the borehole clean and free from debris accumulation, reducing the risk of stuck pipe and improving hole stability-particularly in swelling or reactive formations.

Lower Fluid Consumption: The roller-bit's efficient cutting action requires less hydraulic energy for hole cleaning compared to diamond bits, reducing pumping costs and fluid consumption.

3. Lower Torque & Torsional Stress

Optimized Rolling Action: The rotating roller cones convert high axial load into a rolling/crushing force rather than dragging shear. This significantly reduces the torque required to rotate the drill string, minimizing the risk of rod twist-off or thread fatigue-common failures in deep and deviated boreholes.

Protection for Drill String Components: Reduced torsional vibration extends the service life of drill rods, swivels, and top-drive systems, lowering maintenance costs and improving overall rig safety.

Smoother Operation: The rolling action produces less stick-slip vibration compared to fixed-cutter bits, resulting in smoother, more stable drilling dynamics-a critical advantage when drilling through highly fractured or heterogeneous rock masses.

V19 flat teeth and teeth holder

H22 bullet teeth and teeth holder

JT B series flat teeth and teeth holder

Production Applications

Mineral Exploration & Mining
The roller-bit core barrel is the industry-preferred tool for hard-rock mineral exploration, where obtaining high-quality, undisturbed core samples is critical for resource estimation and mine planning.

Specific Application	Why Roller-Bit Excels
Gold & Base Metal Exploration	Penetrates quartz-veined host rocks (granite, greenstone, schist) with minimal core loss, preserving visible mineralization and alteration zones for accurate assay correlation.
Iron Ore & Hard Hematite	Handles abrasive, high-density iron formations (BIFs) with UCS often exceeding 60MPa, delivering intact runs that accurately reflect grade boundaries.
Rare Earth & Hard-Rock Lithium	Effectively cores through pegmatites and spodumene-bearing granites, where conventional bits suffer rapid wear due to high quartz and feldspar content.
Deep Exploration Drilling (>500m)	Extended bit life reduces tripping frequency, a critical advantage in deep boreholes where each round-trip can consume 4–8 hours of rig time.

Certificate

Our Prestressed anchorage have CE, SGS, ISO Certificates.

Packaging And Delivery

Packing: As your requirements.

We support customized package:

1) All the products are packed with seaworthy packing.
2) Customer's special requirement for packing can be satisfied.
3) Air freight; sea freight and truck freight are all available.

FAQ

1. What is your delivery time?

We offer fast delivery: stock items ship in 7-15 days, while custom orders typically take 15-30 workdays, depending on your specific quantity.

2. How do you guarantee product quality?

Quality is verified through Mill Test Certificates (MTC) included with every shipment, and we fully support third-party inspections for your peace of mind.

3. Are there any hidden costs?

No. Our quotations are transparent and all-inclusive, ensuring you won't encounter any unexpected or additional fees.

4. Do you provide samples?

Yes, we provide samples for a nominal fee of $1; you just need to cover the freight cost to evaluate our quality firsthand.

5. What payment terms do you accept?

We accept T/T at sight and L/C, as well as Cash and Western Union. Please contact us if you require alternative arrangements.

6. What is your MOQ?

Our standard MOQ is usually one container, but we offer flexibility for specific items; please get in touch to discuss your requirements.

7. Can you produce according to my drawing?

Absolutely. We specialize in OEM and custom manufacturing, and our engineering team can produce exact specifications based on your drawings.

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Rotary Piling Rig-Core Barrel With Roller-bit

Rotary Drilling Tools

Product Introduction

Product Specification

Product Details

Advantages

1. Superior Core Quality & Recovery

2. Efficient Cuttings Removal & Cooling

3. Lower Torque & Torsional Stress

Production Applications

Certificate

Packaging And Delivery

FAQ