Where is the company located and what are the shipping options?

The company is located in Hebei, China. It is near Beijing airport and Tianjin seaport, with inland transportation taking only one day. We offer FOB, CIF, or CFR terms and can ship by plane or ship.

Does the company offer OEM and ODM services?

Yes, the company offers both OEM and ODM services, allowing for customized drilling tools tailored to specific client needs.

8 1/2" IADC637 Rotary Drilling Single Roller Cone Bit for Core Barrel

Name: 8 1/2" IADC637 Rotary Drilling Single Roller Cone Bit for Core Barrel
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2043943875

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

US$300.00-900.00

1 Piece

Sample price:US$350.00/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

12 1/4

Trademark

LONGYUE

Origin

Hebei, China

HS Code

8207199000

Production Capacity

200 Pieces/Week

Key features

High-Efficiency Design: Features advanced grease pressure control and wear-resistant alloy hardfacing for superior performance.

Durable Tungsten Carbide: Equipped with tungsten carbide inserts and inlaid friction-reducing alloy for extended wear life.

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

Enhanced Gauge Protection: Shirttail design with extra carbide inserts increases gauge holding capability and bearing life.

Sealed Bearing System: Utilizes metal sealed and rubber sealed bearings for reliable lubrication and protection.

Wide IADC Code Range: Available in multiple IADC codes (117-737) to suit various soft to very hard formations.

OEM/ODM Services: Full OEM and ODM services available for customized drilling tool solutions.

Fast Delivery Capability: Regular models kept in stock for prompt delivery, with factory near Beijing and Tianjin ports.

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: ≤4.92h 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. Sending photos is also helpful. Additional info like drilling depth, rock hardness, rig capacity, application type, Incoterm, and destination port will ensure a more accurate quote.

Q:What are the lead time and payment terms?

We always have regular models in stock for prompt delivery. Mass production 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 recommended drilling parameters for IADC 637?

For IADC 637 (hard to very hard formations like hard limestone, dolomite, marble), the recommended WOB is 0.5-1.2 kn/mm and RPM is 80-40 r/min. Note that the upper limits of WOB and RPM should not be used simultaneously.

Q:What types of formations is this bit suitable for?

This bit covers a wide range of formations from very soft (caly, mudstone, chalk) to very hard (hard limestone, dolomite, marble) depending on the specific IADC code selected, such as 117, 127, 217, 437, 517, 537, 617, or 637.

Q:What is the material composition of the drill bit?

The bit is made of High Carbon Steel with tungsten carbide inserts and inlaid friction-reducing alloy. It features metal sealed or rubber sealed bearings and hardfaced thrust faces with wear-resistant alloy.