Concentric/Symmetric Slide Block Casing Drilling Assembly Bit for Small-to-Medium-Sized Grouting Holes and Micro-Piling Projects

• Customization: Available
• After-sales Service: One Year
• Warranty: One Year
• Model NO.: BOD406
• Manufacturing Process: Forging
• Material: Alloy Steel
• Hammer Type: 5’’-24’’ Hammer
• Application: Pile Drilling, Water Well Drillin
• Transport Package: Wooden Case or Carton
• Specification: 168mm, 219mm, 273mm, 323mm, 406mm,
• Trademark: STAROCKDRILL
• Origin: China
• Production Capacity: 5000PCS/Month

Product Description

Concentric/Symmetric Slide Block Casing Drilling Assembly Bit Symmetric casing block bit for Well Drilling

Our concentric casing system with blocks is specifically designed for drilling in soft and unstable formations, making it ideal for applications such as geothermal wells, water wells, small-to-medium-sized grouting holes, and micro-piling projects.

Specification

 

Features

1.Tailored for Soft Formations: Our drilling system is designed to excel in soft formations, including those with high mud content and abundant floating rocks.

2.High-Performance Materials: We utilize specialized materials, such as 25Si2MnCrNi2MoV, for manufacturing our drilling tools. The blocks undergo surface treatment to achieve a hardness rating of HRC42-45, significantly extending their lifespan.

3.Simplified Operation: With our drilling tools, you can save time on tool replacement and boost overall work efficiency.

Product Introduction

To ensure exceptional durability and wear resistance, we subject our blocks to deep heat treatment processing. Additionally, our precision-engineered installation holes, created using advanced slow wire cutting techniques, guarantee seamless and hassle-free block usage.

Trusted by global drilling contractors and customers who looking for high quality drilling tools for their drilling rigs and rock drilling machines, we would be honored to have the opportunity to earn your trust and provide you with rock drilling products that meet your application needs.

Application scenarios

The versatility of our Concentric Casing System with Blocks  makes them widely applicable across various industries, including open-pit mining, underground mining, tunneling, anchoring projects, blast furnace tapping, tunnel construction, hydroelectric projects, quarrying, and various other construction projects.andling, land preparation.

Technical Specifications

(Custom configurations available upon request.)

Model	Casing OD:(MM)	Casing ID:(MM)	Reamer (MM)	NO. Blocks	Casin Shoe ID:(MM)	Hammer Size	Drill Rod(MM)
BOD168	168	156	185	2	142	5 INCH HAMMER	76/89
BOD178	178	158	195	2	148	5 INCH HAMMER	76/89
BOD183	183	163	200	2	152	5 INCH HAMMER	76/89
BOD194	194	180	209	2	167	6 INCH HAMMER	89/114
BOD219	219	205	237	3	192	6 INCH HAMMER	89/114
BOD245	245	225	264	3	210	8 INCH HAMMER	114
BOD273	273	259	308	3	242	8 INCH HAMMER	114
BOD325	325	305	358	3	282	10 INCH HAMMER	114
BOD406	406	382	426	4	360	12 INCH HAMMER	127

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

Packaging & Shipping

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

HENAN STAROCKDRILL EQUIPMENT CO., LTD

Welcome to Starockdrill, a specialist manufacturer of rock drilling tools. Since our establishment in 2008, Henan Starockdrill Equipment Co., Ltd. has been committed to the research, development, and production of rock drilling tools. Our mission is to provide customers with high-quality, efficient, and reliable drilling tools and solutions, helping them enhance productivity, reduce costs, and create more value.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Threaded Drill Rods
Coupling Sleeves
Threaded Drill Bits
Eccentric Casing System
Double Casing Drilling System

Certifications

Project Case

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.