What types of bearings does the bit use?

The bit uses journal/roller bearing types with metal sealed and rubber sealed bearings to ensure durability and performance.

Is the product customizable?

Yes, the center nozzle can be customized. The manufacturer also offers OEM and ODM services for drilling tools.

8 1/2'' IADC 637 Tricone Roller Cone Bit for HDD

Name: 8 1/2'' IADC 637 Tricone Roller Cone Bit for HDD
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2042971095

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 Wear Resistance: Features tungsten carbide inserts and friction-reducing alloy for extended durability.

Customizable Center Nozzle: The center nozzle design can be customized to meet specific drilling requirements.

Advanced Bearing Protection: Equipped with metal sealed and rubber sealed bearings for superior reliability.

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

Wide IADC Code Range: Available in multiple IADC codes including 117, 127, 637, and 737 for various formations.

Optimized for Hard Formations: Specifically designed for hard to very hard formations like limestone and dolomite.

Fast Inland Transportation: Factory is near Beijing and Tianjin ports with transport time of only one day.

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

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: ≤6.06h 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 a simple method. Also provide drilling depth, drilling length, rock hardness, drill rig capacity, application type, Incoterm (FOB, CIF, CFR), transport mode, and destination port.

Q:What are the lead time and payment terms?

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

Q:What is the delivery advantage?

We have regular models in stock for prompt delivery. Our factory is near Beijing airport and Tianjin seaport, with inland transportation taking only one day, ensuring fast and economical logistics.

Q:What are the recommended drilling parameters for IADC 637?

For IADC 637, the recommended WOB is 0.5-1.2 kn/mm and RPM is 80-40 r/min. This code is suitable for hard to very hard formations with high compressive strength, such as hard limestone, dolomite, and marble.

Q:What materials are used for the bit teeth?

The bit teeth are made of tungsten carbide inserts with inlaid friction-reducing alloy to ensure high efficiency and wear resistance.