BORED PILE DOUBLE CUT ROCK BUCKET

---

Overview

The Bored Pile Double Cut Rock Bucket is a high-performance drilling attachment designed for deep foundation projects that involve dense soil, gravel, or hard rock formations. Engineered to deliver precision, power, and durability, this heavy-duty bucket plays a crucial role in bored pile drilling, ensuring efficient rock cutting and debris removal.

Manufactured under 3GEN Export’s OEM engineering standards, this bucket is compatible with the most advanced piling rigs, including Bauer, Soilmec, Liebherr, Junttan, Casagrande, ABI (Banut & Delmag), XCMG, SANY, Woltman, Mait, TYSIM, and Fangyuan.

Its double-cut design, equipped with replaceable rock teeth and bullet bits, allows for aggressive penetration and optimized cutting performance in hard geological conditions. Whether drilling through limestone, weathered basalt, or mixed rock layers, the BORED PILE DOUBLE CUT ROCK BUCKET guarantees stable boreholes with minimal deviation — a standard of excellence demanded by today’s foundation contractors.

---

Purpose and Function

In bored piling, the final drilling stages often encounter compact rock layers or mixed soil conditions that can reduce tool efficiency and cause uneven excavation. The Bored Pile Double Cut Rock Bucket addresses this challenge with a dual-cutting mechanism that maximizes contact surface area and torque distribution.

When attached to a rotary rig’s Kelly bar, the bucket cuts and collects rock fragments simultaneously. The lower cutting edge performs the initial incision, while the upper cutting blades finish the excavation, leaving a smooth borehole wall. The bucket then closes automatically as it is lifted, trapping all collected material securely inside — preventing spillage and ensuring clean disposal at the surface.

This two-stage operation ensures that the borehole bottom is properly leveled and ready for the next stage of foundation construction, including steel cage installation and concrete pouring.

---

Design and Construction Features

1. Double Cutting Edge System

The defining feature of the BORED PILE DOUBLE CUT ROCK BUCKET is its dual-level cutting mechanism. The first (lower) row of cutting bits penetrates the rock surface, while the second (upper) row enlarges and smoothens the borehole diameter. This design significantly enhances drilling efficiency, especially in medium-to-hard rock layers.

Each cutting tooth is made from heat-treated alloy steel with tungsten carbide tips, ensuring exceptional resistance against abrasion and impact.

---

2. Replaceable Rock Bits and Holder Configuration

The bucket is fitted with bullet-type rock teeth, positioned at precise angles for maximum contact with the borehole wall. These bits are easily replaceable, reducing maintenance time and cost. The tooth holders are welded with precision to ensure balanced torque transmission during rotation.

---

3. High-Tensile Cylindrical Shell

The body of the BORED PILE DOUBLE CUT ROCK BUCKET is built from Q345B or S355 structural steel, providing high yield strength and exceptional fatigue resistance. The cylindrical shell is reinforced with rib plates, allowing it to withstand extreme rotational forces and vertical loads during drilling.

---

4. Automatic Bottom Flap System

A spring-loaded flap mechanism ensures that the bucket remains sealed during lifting. This automatic closure system minimizes material loss and prevents soil or rock fragments from falling back into the borehole — an essential feature for clean excavation in deep drilling operations.

---

5. Kelly Box Interface

The bucket is equipped with a universal Kelly box interface (130 mm, 200 mm, 250 mm square), ensuring compatibility with all major drilling rigs. This standardization provides easy interchangeability between tools, improving efficiency on multi-equipment job sites.

---

6. Corrosion Protection and Surface Finish

Each bucket is finished with a two-layer industrial epoxy coating to resist corrosion, slurry abrasion, and moisture exposure. The coating also improves visual safety on-site, with bright yellow or green color finishes representing enhanced visibility during handling and operation.

---

Technical Specifications

---

Dimensional Reference Table

---

Approximate Weight by Diameter

---

Working Principle

The BORED PILE DOUBLE CUT ROCK BUCKET operates through a simple yet highly efficient mechanism:

1. Lowering the Bucket:
   The bucket is connected to the Kelly bar and lowered into the borehole using the rig’s winch system. The cutting bits engage the rock surface.

2. Rotational Cutting:
   As the rotary drive applies torque, the double rows of teeth break and dislodge rock fragments. The double-cut system ensures even cutting pressure, reducing vibration and tool wear.

3. Collection of Material:
   The loosened rock enters the bucket cavity through the lower openings. The flap remains open during cutting and automatically closes when lifting begins.

4. Lifting and Discharge:
   The bucket is lifted to the surface, where the flap opens to release the debris. This cycle is repeated until the desired borehole depth and cleanliness are achieved.

---

Compatible Rig Models

The BORED PILE DOUBLE CUT ROCK BUCKET is designed for universal compatibility with global piling equipment brands:

Bauer (Germany)

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

• Designed to match Bauer’s high torque and Kelly drive systems.

Soilmec (Italy)

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

• Perfect alignment for Soilmec’s SR rotary platforms and long-stroke systems.

Liebherr (Germany)

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

• Engineered for Liebherr rigs requiring high penetration rates in rock.

Junttan (Finland)

Models: PMx20, PMx22, PMx24

• Optimized for compact drilling environments with limited access.

Casagrande (Italy)

Models: B125 XP, B200 XP, B300 XP

• Balanced weight and torque distribution ensure consistent drilling.

ABI (Banut & Delmag, Germany)

Models: RH Series, MIDI Series

• Enhanced for ABI’s torque-rich systems and hard soil excavation.

XCMG (China)

Models: XR220D, XR280D, XR360E

• Compatible with high-speed rotary heads and fast drilling cycles.

SANY (China)

Models: SR205C10, SR285C10, SR360R

• Reinforced cutting geometry to suit SANY’s large torque rigs.

Woltman (Netherlands)

Models: W Series

• Perfect for offshore and deep foundation environments.

Mait (Italy)

Models: HR130, HR180, HR260

• Custom Kelly box options available for Mait’s diverse range.

TYSIM (China)

Models: KR125A, KR220C, KR300C

• Lightweight configuration ensures quick rig mobility and fast drilling response.

Fangyuan (China)

Models: FYD and FYZ Series

• Adaptable for both soil and mixed rock layers.

---

Key Advantages

1. Enhanced Rock Cutting Efficiency

The dual-level cutting arrangement ensures that the bucket can penetrate and crush rock simultaneously, improving productivity by up to 30% compared to single-cut buckets.

2. Extended Service Life

The wear-resistant components — including tungsten carbide teeth and reinforced steel ribs — extend the operational life, even under continuous use in abrasive rock formations.

3. Precision and Stability

The bucket’s balanced structure prevents lateral movement, ensuring the borehole remains perfectly aligned, which is critical for structural integrity.

4. Reduced Vibration and Torque Loss

The optimized tooth spacing and shell geometry distribute cutting forces evenly, minimizing mechanical stress on the rig.

5. Fast Cleaning and Material Discharge

The spring flap mechanism provides a clean and efficient emptying cycle, saving time during repetitive drilling operations.

6. Universal Rig Compatibility

With multiple Kelly box options and adaptable configurations, the BORED PILE DOUBLE CUT ROCK BUCKET fits virtually any piling rig brand in the global market.

---

Quality and Manufacturing Process

All 3GEN Export products are produced under strict OEM quality management protocols:

• Precision CNC cutting and plasma welding for dimensional accuracy

• Dynamic balancing to ensure minimal torque loss

• Ultrasonic weld inspection to detect micro-defects

• Heat treatment and hardfacing of cutting elements

• Anti-corrosion coating to prevent rust and abrasion

• Final performance testing for every manufactured unit

Each bucket is serial-numbered, inspected, and shipped with a quality certificate to ensure reliability on site.

---

Packaging and Delivery

Every BORED PILE DOUBLE CUT ROCK BUCKET is securely packed and ready for international transport.
Packaging includes:

• Industrial-grade steel or wooden crate

• Moisture-proof coating

• Protective seals for cutting teeth

• Full inspection documentation and product label

3GEN Export guarantees global delivery in just 5 working days, ensuring contractors stay on schedule even in high-demand operations.

---

Weight and Handling

This optimized weight distribution supports efficient torque transfer and minimal wear on the drilling rig.

---

Applications

• Deep foundation piling

• Bridge and viaduct foundation shafts

• Offshore and port construction

• Wind turbine foundations

• Industrial and infrastructure deep boreholes

The BORED PILE DOUBLE CUT ROCK BUCKET delivers dependable results in all these conditions, making it a staple tool in modern piling operations.

---

Conclusion

The BORED PILE DOUBLE CUT ROCK BUCKET from 3GEN Export is the industry standard for precision, endurance, and efficiency in rock drilling.
Built from premium-grade steel and fitted with tungsten-carbide rock bits, it’s engineered to perform under the toughest geological conditions.

With global delivery in 5 working days, OEM quality assurance, and compatibility across all major rig brands, 3GEN Export provides the trusted reliability that professional contractors depend on.

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.