What bearing types are used?

We use journal bearings and roller bearing bits, featuring metal sealed and rubber sealed bearings with advanced grease pressure control.

Where is the factory located?

Our factory is located in Hejian City, Cangzhou, Hebei, China, near Beijing airport and Tianjin seaport for economical transportation.

Hard Rock Core Barrel Roller Cone Bits Roller Cutter

Name: Hard Rock Core Barrel Roller Cone Bits Roller Cutter
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2169994515

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

US$210.00-250.00

1 Piece

Sample price:US$800.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

AISI

Model NO.

8.5

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

Transport Package

Wooden Case

Specification

12 1/4"

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207199000

Production Capacity

200 Pieces/Week

Key features

High Efficiency & Wear Resistance: Forged high carbon steel with tungsten carbide inserts for superior durability.

Advanced Bearing System: Metal sealed and rubber sealed bearings with friction-reducing alloy lubrication.

Customizable Nozzles: Three nozzles design with center nozzle customization options available.

Enhanced Gauge Protection: Additional carbide inserts on the shirttail increase gauge holding capability.

Wide Size Range: Available in 7 1/2'', 8 1/2'', 9 7/8'', and 12 1/4'' bit sizes.

OEM/ODM Support: Full customization services including machine type and processing type.

Fast Delivery: Regular models in stock with prompt delivery and fast inland transport.

Global Export Experience: Exported to over 25 countries including US, Australia, and Europe.

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: ≤4.82h 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 bit type (Diameter, IADC code), drilling depth, rock hardness, drill rig capacity, application type, Incoterm, and destination port. Photos are also helpful.

Q:What are the payment terms?

We accept all regular payment terms including L/C, T/T, D/P, and PayPal.

Q:What is the lead time for orders?

Regular models are available in stock for prompt delivery. Mass production lead time depends on order quantity, typically within 15 workdays.

Q:What materials are used in the drill bits?

The bits are made of high carbon steel with tungsten carbide inserts and inlaid friction-reducing alloy for wear resistance.

Q:Can the center nozzle be customized?

Yes, the center nozzle can be customized according to specific requirements.