BORED PILE SINGLE CUT ROCK BUCKET

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Overview

The Bored Pile Single Cut Rock Bucket is a specialized drilling attachment engineered for precision excavation through dense strata, compact soils, and hard rock layers. Designed for use in foundation and infrastructure piling projects, it provides exceptional performance in environments where strength, stability, and speed are critical.

Manufactured under 3GEN Export’s OEM engineering standards, this bucket is built to meet the demands of heavy-duty foundation drilling rigs such as Bauer, Soilmec, Liebherr, Junttan, Casagrande, ABI (Banut & Delmag), XCMG, SANY, Woltman, Mait, TYSIM, and Fangyuan. Its robust design and advanced cutting geometry enable it to deliver efficient material removal with reduced torque resistance and optimized borehole accuracy.

Ideal for rotary drilling applications, the BORED PILE SINGLE CUT ROCK BUCKET is particularly suited for rock layers where full-face cutting efficiency and controlled excavation depth are essential. The combination of hardened cutting edges, replaceable bullet bits, and a heavy-gauge body ensures long-lasting performance, even in highly abrasive and fractured geological conditions.

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Function and Working Principle

The BORED PILE SINGLE CUT ROCK BUCKET functions as an excavation tool used in rotary bored pile drilling. It operates through a continuous cutting and lifting cycle that ensures optimal material removal and clean borehole completion.

1. Cutting Phase:
   As the rotary rig applies torque to the Kelly bar, the bucket’s single cutting edge—equipped with tungsten carbide teeth—engages the rock surface. The sharp angle and spacing of the teeth allow the tool to penetrate hard material efficiently.

2. Collection Phase:
   As drilling continues, loosened rock and soil enter the bucket’s inner chamber through the front opening. The cutting edge and base plate are designed to guide materials smoothly without clogging, ensuring uninterrupted operation.

3. Closing and Lifting:
   When the operator stops rotation and lifts the bucket, the automatic bottom flap closes under gravity or spring tension, securely holding the excavated material inside.

4. Discharge Phase:
   At the surface, the flap reopens to release the debris before the next drilling cycle begins.

This reliable mechanical system enables precise excavation while maintaining borehole integrity—a key requirement for structural foundations and deep piles.

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Design and Construction Features

1. Single-Cut Blade System

Unlike double-cut designs, the BORED PILE SINGLE CUT ROCK BUCKET features a single-cutting edgeoptimized for deep penetration in compact rock and dense gravel. The streamlined structure minimizes torque loss while ensuring powerful cutting action with every rotation.

The result is faster drilling speed, cleaner hole walls, and reduced wear on both the bucket and the rig.

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2. Tungsten Carbide Cutting Teeth

Each tooth is manufactured from heat-treated alloy steel and tipped with tungsten carbide inserts for superior wear resistance. The strategic arrangement of the teeth ensures even force distribution, minimizing vibration and maximizing penetration efficiency.

These replaceable teeth reduce long-term maintenance costs, making the bucket a durable and economical investment for any drilling operation.

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3. Reinforced Cylindrical Shell

The main body of the BORED PILE SINGLE CUT ROCK BUCKET is constructed from high-tensile Q345B or S355 structural steel, featuring internal stiffening ribs and exterior wear plates. This configuration prevents deformation under high torque and ensures the bucket can handle extreme loads without compromising performance.

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4. Automatic Bottom Flap Mechanism

An automatic flap door located at the base of the bucket closes when the tool is lifted, preventing material from falling out. This feature is critical for ensuring clean excavation, especially in deep or inclined boreholes. The flap’s hinge and spring system are made from alloy steel for reliable sealing and long-term durability.

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5. Kelly Box Interface

The top connection of the bucket is equipped with a universal Kelly box (available in 130 mm, 200 mm, and 250 mm square sizes). This interface ensures full compatibility with all major rotary drilling rigs, providing flexibility and ease of use across equipment fleets.

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6. Wear Protection and Surface Finish

The bucket’s exterior surface is coated with industrial-grade epoxy paint, protecting it from corrosion, abrasion, and slurry exposure. Color options such as high-visibility yellow or green provide safety and easy identification on-site.

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Technical Specifications

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Dimensional Chart

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Approximate Weight by Diameter

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Compatible Drilling Rigs

The BORED PILE SINGLE CUT ROCK BUCKET is engineered for universal compatibility with leading piling and foundation machinery brands:

Bauer (Germany)

Models: BG 20, BG 28, BG 36, BG 45

• Tailored to Bauer’s rotary torque systems for high-efficiency penetration.

Soilmec (Italy)

Models: SR-30, SR-45, SR-75, SR-95

• Optimized for Soilmec’s high-speed drilling and automatic torque balancing systems.

Liebherr (Germany)

Models: LB 20, LB 28, LB 36, LB 44

• Supports Liebherr’s precise alignment control and strong rotary drives.

Junttan (Finland)

Models: PMx20, PMx22, PMx24

• Ideal for compact rigs with flexible torque output and space constraints.

Casagrande (Italy)

Models: B125 XP, B200 XP, B300 XP

• Perfectly balanced for Casagrande’s robust rotary heads and smooth Kelly drive operation.

ABI (Banut & Delmag, Germany)

Models: RH Series, MIDI Series

• Enhances cutting accuracy and stability in ABI’s vibration-resistant designs.

XCMG (China)

Models: XR220D, XR280D, XR360E

• Matches XCMG’s multi-speed drilling configurations for consistent results.

SANY (China)

Models: SR205C10, SR285C10, SR360R

• Fully compatible with SANY’s large-torque foundation rigs.

Woltman (Netherlands)

Models: W Series

• Suitable for offshore and heavy foundation projects where reliability is paramount.

Mait (Italy)

Models: HR130, HR180, HR260

• Configurable with Mait’s efficient drilling head design.

TYSIM (China)

Models: KR125A, KR220C, KR300C

• Lightweight configuration ideal for compact, mobile operations.

Fangyuan (China)

Models: FYD / FYZ Series

• Efficient in mixed soil and rock conditions with minimal torque loss.

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Performance Advantages

1. Maximum Penetration Efficiency

The single-cut configuration provides deeper bite per rotation, enabling faster excavation through dense rock layers with less energy consumption.

2. Simplified Structure, Higher Reliability

With fewer moving parts than a double-cut bucket, the design minimizes maintenance needs and mechanical failures, ensuring consistent on-site performance.

3. Excellent Material Retention

The automatic flap system prevents loss of material during lifting, keeping the work area clean and maximizing efficiency.

4. Extended Service Life

Wear-resistant components, including carbide teeth and reinforced shell plates, significantly extend operational lifespan.

5. Cost-Effective Maintenance

Quick-replace tooth systems reduce downtime, allowing for on-site repairs without specialized tools.

6. Optimal Rig Compatibility

Thanks to the standardized Kelly box system, the BORED PILE SINGLE CUT ROCK BUCKET can be interchanged between rigs seamlessly.

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Applications

• Bridge and viaduct foundation shafts

• Urban piling and deep foundation construction

• Wind turbine and energy projects

• Offshore and port infrastructure

• Pile foundations in mixed or rocky formations

Whether operating in limestone, weathered granite, or compact clay with rock inclusions, this bucket ensures clean boreholes and reduced rework.

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Manufacturing Quality

Each BORED PILE SINGLE CUT ROCK BUCKET undergoes a rigorous production process under 3GEN Export’s OEM standards:

• Precision CNC fabrication for accurate alignment

• Ultrasonic weld testing to detect structural inconsistencies

• Hardfacing and heat treatment for wear resistance

• Dynamic balancing to eliminate rotational vibration

• Final inspection and quality certification before shipment

Every unit is serialized and traceable, ensuring total transparency and reliability from manufacturing to site delivery.

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Packaging and Global Delivery

All buckets are securely packaged for global logistics and safe arrival:

• Heavy-duty steel or wooden crates

• Moisture protection and corrosion-resistant wrapping

• Labeled and documented for immediate field use

3GEN Export guarantees worldwide delivery within 5 working days, ensuring project continuity and eliminating costly delays.

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Weight and Handling Specifications

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Why Choose 3GEN Export

• OEM Engineering Excellence: Manufactured to precise mechanical standards for durability and performance.

• Global Reach: Delivered to over 70 countries within 5 working days.

• Reliability and Value: Every product tested to meet global construction benchmarks.

• Universal Fit: Designed to match the geometry and torque of all major rig systems.

• After-Sales Support: Technical guidance and spare parts available upon request.

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Conclusion

The BORED PILE SINGLE CUT ROCK BUCKET represents the pinnacle of precision engineering in foundation drilling. With its high-strength structure, tungsten carbide cutting system, and reliable automatic flap design, it provides a balance of efficiency, durability, and safety unmatched in its category.

Designed and supplied by 3GEN Export, this bucket is trusted by foundation contractors and equipment operators worldwide for its consistency, strength, and performance in even the most challenging drilling conditions.

When your project demands dependable excavation in rock and mixed soil layers — 3GEN Export delivers.

    Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.

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