Can the center nozzle be customized?

Yes, the center nozzle can be customized to suit specific drilling needs.

What is the company's export experience?

The company has been exporting since 2016 and exports to countries including the United States, Australia, Costa Rica, Guatemala, Azerbaijan, Congo, Myanmar, Peru, Singapore, Oman, Indonesia, Philippines, India, Switzerland, Ukraine, Turkey, Bolivia, Romania, Kenya, Vietnam, South Africa, Kuwait, Mozambique, Ecuador, France, and others.

Single Cone Rock Roller Drill Bits for Drilling Machines

Name: Single Cone Rock Roller Drill Bits for Drilling Machines
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2110511465

Hebei, ChinaHejian Longyue Drill Bit Manufacture Co., Ltd.

US$300.00-500.00

1 Piece

Sample price:US$300.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

AISI

Model NO.

8 1/2''

Length

Taper-length

Type

Center Drill Bit

Material

High Carbon Steel

Usage

Well Drilling

Machine Type

Drilling Tool

Processing Type

Forging

Advantage

High-Efficiency, Wear Resistant

Bearing Type

Journal /Roller Bearing Bit

Pin Connection

4 1/2" Regular

Transport Package

Wooden Case

Specification

8 1/2''

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207199000

Production Capacity

200 Pieces/Week

Key features

High-Efficiency Design: Features high-efficiency and wear-resistant tungsten carbide inserts for optimal drilling performance.

Customizable Nozzles: Center nozzle can be customized to meet specific drilling requirements.

Advanced Bearing System: Equipped with metal sealed and rubber sealed bearings for durability.

Wear Resistant Alloy: Thrust faces are hardfaced with wear-resistant alloy to extend service life.

Gauge Protection: Shirttail design with more carbide inserts increases gauge holding capability.

Wide Range of Sizes: Available in sizes from 7 1/2'' to 12 1/4'' with various IADC codes.

Versatile Applications: Suitable for soft to very hard formations including shale, limestone, and dolomite.

OEM/ODM Services: Manufacturer offers both OEM and ODM services for customized drilling tools.

Company profile

Hejian Longyue Drill Bit Manufacture Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-08-01 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤5.73h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryHejian Longyue Drill Bit Manufacture Co., Ltd. is a China-based manufacturing factory in Hejian, Cangzhou, Hebei, established in 2016, with 67 employees and a 10,000 m² plant. It produces drilling-related equipment, operates more than 10 production lines, and has 6–10 quality-control staff. The supplier states that it can design HY PDC bits according to customer requirements, indicating customization capability. It has five years of R&D engineer experience, exports 51%–70% of sales, and holds self-operated import and export rights. However, the provided information does not confirm certifications, after-sales capabilities, or verified customer cases. Trade records show limited documented import activity involving Uzbekistan and Kazakhstan, but these records alone do not establish broad customer performance or financial credibility.

Supplier typeThe supplier is explicitly identified as a factory/manufacturer and a limited company located in Hejian, Cangzhou, Hebei, China. Its stated business scope includes drilling equipment and manufacturing-related products, consistent with a specialized industrial manufacturer.

R&D capabilityThe supplier reports five years of total R&D engineer experience and states that it can design HY PDC bits according to customer requests. This provides explicit evidence of product-design capability, although no broader R&D team size, patents, testing facilities, or innovation results are given.

Production capacityThe supplier operates more than 10 production lines, employs 6–10 quality-control staff, and has a 10,000 m² manufacturing plant with 67 total employees. These stated operational resources support a positive assessment of production capability, though actual capacity and delivery performance are not specified.

Customization capabilityThe company explicitly states that it can design HY PDC bits according to customer requirements. Its listed product range includes PDC bits, tricone bits, roller cones, hole openers, rock reamers, and related drilling products, supporting product-specific customization capability.

Product Q&A

Q:How to get an exact quotation?

Please send detailed information including Tricone bits (Diameter, IADC code), PDC bits (Matrix or Steel body, blades quantity, cutter size), Hole opener (Diameter, pilot hole size, rock hardness, thread connection), and Roller cutters (Diameter of cones, model number). Sending photos is also a simple way. For better accuracy, provide drilling depth, drilling length in HDD, rock hardness, drill rig capacity, application type (oil/gas, water, HDD, foundation), Incoterm (FOB, CIF, CFR), transport

Q:What are the lead time and payment terms?

We always have regular models available in stock for prompt delivery. Mass production lead time depends on order quantity. We accept all regular payment terms including L/C, T/T, D/P, and PayPal. Peak and off-peak season lead times are both within 15 workdays.

Q:What are the transportation advantages?

Our factory is located near Beijing airport and Tianjin (Xingang) seaport. Transportation from the factory to Beijing or Tianjin takes only one day, ensuring fast and economical inland charges.

Q:What are the available IADC codes and sizes?

Available IADC codes include 117, 127, 126, 217, 417, 437, 517, 537, 617, 627, 637, and 737. Bit sizes range from 7 1/2'' to 12 1/4''.

Q:What materials are used for the drill bits?

The bits are made of High Carbon Steel with tungsten carbide inserts and inlaid friction-reducing alloy. They feature metal sealed bearings and rubber sealed bearings.