Where is the company located and what is the nearest port?

The company is located in Hebei, China. The nearest port is Tianjin Port, which is one day away from the factory.

TCI Roller Cone Cutters

Name: 8 1/2 Inch IADC 637 Single Roller Cone Bits/TCI Roller Cone Cutters
Brand: Hejian Longyue Drill Bit Manufacture Co., Ltd.
SKU: 2112552135

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

US$1,000.00-3,000.00

1 Piece

Sample price:US$1500.00/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

IADC 637 Certification: Designed for hard to very hard formations with high compressive strength.

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

High-Efficiency Wear Resistance: Features tungsten carbide inserts and hardfaced wear-resistant alloy for durability.

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

Gauge Protection Design: Shirttail features more carbide inserts to increase gauge holding capability.

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

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

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

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: ≤5.25h 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, Hole opener, or Roller cutters. Photos are also accepted. For better accuracy, provide drilling depth, rock hardness, drill rig capacity, application type, Incoterm, and port of destination.

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 are the recommended drilling parameters for IADC 637?

For IADC 637, recommended WOB is 0.5-1.2 kn/mm and RPM is 80-40 r/min. This is suitable for hard to very hard formations like hard limestone, dolomite, and marble.

Q:What materials are used for the bit teeth and inserts?

The bit uses tungsten carbide inserts and inlaid friction-reducing alloy. The body is made of high carbon steel with hardfaced wear-resistant alloy on thrust faces.

Q:Does the company offer OEM and ODM services?

Yes, the company provides both OEM and ODM services with 5 R&D engineers and advanced drilling equipment.