Description
Others

Key attributes

Machinery Test Report

Provided

Warranty

1 Year

Video outgoing-inspection

Provided

Brand Name

Dunrui

Place of Origin

Shandong, China

Product name

Soft Ground Cutting Tools

Material

Alloy steel + Tungsten carbide

Application

Soft Rock, Soil, Sand, and Gravel Excavation

Compatible Brands

Herrenknecht, Robbins, Mitsubishi, CRCHI, CREG

MOQ

1 Piece

OEM

Avaliable

Packing

Wooden Case

Packaging and delivery

Selling Units

Single item

Product descriptions from the supplier

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Warning/Disclaimer

California Proposition 65 Consumer WarningView more

Company Profile

Main Category of Our Scrapers

CUTTER BIT

The cutter bit is the main cutting tool, arranged on both sides of the cutterhead opening slot, the cutting principle is the shield machine forward at the same time, the cutter with the cutter rotation on the excavation surface of the soil to produce axial (along the tunnel forward direction) shear force andradial (cutter rotation tangent direction) cutting force, in the cutter rotation, the cutter blade andcutter head partially inserted into the ground within the soil, and constantly cutting down the soil infront of the excavation. In the hard rock stratum under the cutter mainly plays the role of scrapingslag, not directly involved in cutting.

SIDE CUTTER

The side cutter works on the same principle as the cutter, which is mountedon the edge of the cutter plate and is usedto cut the soil on the outer perimeter toensure the diameter of the excavationsection. The cutter is mounted with boltsfor easy replacement.

PRE-CUTTING BITS

Pre-cutting bit (pilot cutter) is the first cutter to cut the soil body. Pre-cutting bit in the design of the main considerations and other cutting tool combinations work together. Pre-cutting bit is used to firstreduce the soil into blocks by coordinating with the cutter during construction, before the cutting ofthe tools so as to create good cutting conditions. It can increase the fluidity of the cutting soil, reduce the impact load of the cutter, reduce the cutting torque, reduce the wear of the cutter, improve the cutting efficiency.

CENTER CUTTER

It is installed in the center of thecutter head for the center section of theexcavation surface. It is divided into twotypes . It plays the role of centering andloosening the soil in the center part.

PROTECTION CUTTER

Protection Cutter bit can be divided into panelprotective cutter, grouting mouth protective cutter, cutterseatprotective cutter, diameter-preserving cutter,wear-resistant plate, bolt wear-resistant block according tothe installation position and use. Play the role of protectingthe cutter plate and cutter.

COPY CUTTER BIT

The copy cutter bit is arranged on the edge of the cutter head. During construction, the profiling cutter can be extended and retracted radially from the edge according to the amount andscope of over-excavation. When the shield machine advances, turns or corrects deviation in the curve section, the space required is created by cutting the soil body through the imitation over-excavation to ensure that the shield machine realizes curve advancement, smooth turning and deviation correction under the conditions of less over-excavation and less interference to the surrounding soil body.

Quality Control & Testing

Uncompromising Quality, Guaranteed Performance

At Dunrui Technology, quality is not a promise—it is our standard. We implement a rigorous, zero-defect quality control system across our entire production line. Every cutter and pick is subject to multi-stage inspections, ensuring that only products meeting the highest industrial durability standards ever reach your job site. When safety and uptime are on the line, we don’t compromise.

Application Scenarios

Why Choose Us

* Factory Direct Price: Eliminate middlemen and get the best value for your project. * Rich Experience: Over a decade of expertise in TBM tool manufacturing. * Customization: Professional R&D team to provide tailored solutions for specific geology. * 24/7 Support: Instant technical consultation and after-sales service.Contact us today for a FREE quote and technical consultation on your next tunneling project!

Product Packaging

* Inner Packaging: Rust-proof oil coating + Heavy-duty plastic wrap.* Outer Packaging: Standard Export Wooden Crates (Fumigation-free).* Delivery: Support for Sea Freight, Air Freight, and Express (DHL/UPS/FedEx).* Lead Time: Large stock available for standard sizes; custom orders within 15-20 days.

FAQ

Q：What's the nature of your company, manufacturer or trading company?

A：We are Manufacturer. All products are produced by ourselves, so we have competitive prices whileensuring product quality.

Q: How do you ship the products?A: Our goods can be transported by air and sea.

Q: Does this product support customization?

A: Yes, due to the fact that we have our own factories, We can customize the product according to custrequirements.

Q: How long is your delivery time?A: Generally it is 5-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it isaccording to quantity.

Precision Engineering for Demanding Drilling Tasks

SHARPLY's HDD Reamer Bit Pilot Drilling Tools are crafted using premium-grade materials sourced from leading tungsten carbide rods suppliers. Built to endure extreme underground conditions, these RT2, RT1, BR2, and BR1 cutters are reinforced with carbide inserts designed by experienced carbide inserts manufacturers, ensuring both longevity and exceptional cutting capability.

Versatile Applications Backed by CNC Expertise

With proven compatibility across HDD machines, these reamer bits are enhanced through SHARPLY’s in-house CNC machining service. We also offer custom CNC service to tailor-fit each tool's geometry, making our tools ideal for contractors seeking bespoke cutting solutions for tunneling, coal mining, and directional drilling projects.

Partnered with Experts in Carbide Technology

As a trusted carbide saw tips supplier, SHARPLY incorporates precision-crafted teeth into each weld-on cutter. This guarantees cutting-edge performance and reduced downtime. Combined with our roots in custom end mills manufacturing, we ensure each drilling tool exceeds performance expectations.

Reliable Wholesale Support for Industrial Applications

Designed for bulk buyers and professional drilling contractors, SHARPLY’s tools meet strict B2B quality standards. Whether you’re sourcing from carbide inserts manufacturers or tungsten carbide rods suppliers, our supply chain is optimized for consistent quality and lead times.

Product Advantages

High-Performance Materials: Made with tungsten components from certified tungsten carbide rods suppliers, ensuring extreme hardness and wear resistance.
Precision Carbide Integration: Includes carbide saw tips and advanced inserts from leading carbide inserts manufacturers for seamless performance in abrasive conditions.
CNC-Optimized Design: All models are produced with our in-house CNC machining service, with full support for custom CNC service to meet unique drilling specifications.
Trusted by Industrial Buyers: Backed by SHARPLY’s reputation as a custom end mills expert and reliable B2B supplier.
Scalable for Large Projects: Ideal for bulk procurement, supported by efficient logistics and flexible customization capabilities.

About Us

Precision Engineering in Tungsten Carbide Solutions

Zhuzhou Site Cemented Carbide Co., Ltd., established in May 2001 with an investment of RMB 40 million, is located in the Liyu Industrial Area of Zhuzhou City, Hunan Province. We specialize in the production of tungsten carbide products, offering comprehensive solutions for various industries.

Core Manufacturing Capabilities & Quality Assurance

Advanced Production Facilities: Equipped with state-of-the-art production lines and advanced equipment, we ensure high-quality manufacturing processes.
Certified Quality Management: Our operations are certified under ISO 9001:2008 and ISO 14001, reflecting our commitment to quality and environmental management.
Skilled Technical Team: Our team comprises numerous technicians dedicated to maintaining high standards in production and quality control.

Production Strength in Numbers

24/7 Operations: We operate six precision sub-production lines continuously to meet demanding schedules.
Ample Inventory: Maintaining a standing stock of 200 tons ensures prompt delivery and supply stability.
Global Reach: Our products are exported to over 70 countries, including the UK, Europe, Japan, Taiwan, and Southeast Asia.

Commitment to Sustainability

We adhere to ISO 14001 environmental standards, implementing practices that minimize environmental impact throughout our operations.

Customer Collaboration Process

Technical Support: Our team of 18 professional sales engineers provides comprehensive alloy selection and technical support.

Flexible Order Quantities: We accommodate varying order sizes to meet different customer needs.

Efficient Delivery: With a robust logistics network, we ensure timely delivery to meet urgent customer requirements.

Global Service Capability

Our extensive marketing and service network spans over 70 countries, enabling us to provide localized support and services to our international clientele.

FAQ

Who are we?

We are Zhuzhou Site Cemented Carbide Co., Ltd., a manufacturer specializing in tungsten carbide products since 2001, based in Zhuzhou City, Hunan Province, China.

How can we guarantee quality?

Our quality assurance is backed by ISO 9001:2008 and ISO 14001 certifications, advanced testing equipment, and a team of skilled technicians dedicated to maintaining high standards.

What can you buy from us?

We offer a range of tungsten carbide products, including cold forging die cores, brazed tips, disc cutters, plates and boards, saw tips, round rods, rock drilling bits and buttons, milling tools, and geological exploration drill tools.

Why should you buy from us instead of other suppliers?

Our combination of advanced manufacturing capabilities, certified quality management, extensive product range, and global service network positions us as a reliable partner for your tungsten carbide needs.

What services can we provide?

We provide comprehensive technical support, flexible order quantities, efficient delivery services, and a commitment to customer satisfaction through our professional sales engineering team.

Elevate your drilling operations with SHARPLY's precision-engineered tools. Contact us today to discuss your project requirements and discover how our solutions can enhance your productivity.

Dunrui TBM Soft Rock Scraper Tunnel Boring Machine Shield Alloy Steel Tungsten Carbide High Wear Resistance Long Service Life 1

Description

Others

Key attributes

Packaging and delivery

Product descriptions from the supplier

CUTTER BIT

SIDE CUTTER

PRE-CUTTING BITS

CENTER CUTTER

PROTECTION CUTTER

COPY CUTTER BIT

Uncompromising Quality, Guaranteed Performance

Product Advantages

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Dunrui TBM Soft Rock Scraper Tunnel Boring Machine Shield Alloy Steel Tungsten Carbide High Wear Resistance Long Service Life 1

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