311mm IADC 837 Tricone Roller Cone Rotary Tools Rock Drill Bit

Name: 311mm IADC 837 Tricone Roller Cone Rotary Tools Rock Drill Bit
Brand: Hejian Hengji Bit Manufacture Co., Ltd.
SKU: 822090785

Hebei, ChinaHejian Hengji Bit Manufacture Co., Ltd.

US$100.00-4,000.00

1 Piece

Product profile

Customization

Available

Customized

Length

3''~26''

Model NO.

311mm

Type

Center Drill Bit

Material

Tungsten Carbide

Usage

Well Drilling

Place of Origin

Hebei, China

Brand Name

Machine Type

Drilling Tool

Bits Material

Carbide

Processing Type

Forging

Bits Use

Well Drilling

Colo

Blue, Red, Yellow...

Transport Package

Wooden Case

Specification

according requirement

Trademark

Origin

Hebei

HS Code

82071990

Production Capacity

1000PCS/Month

Key features

Advanced TCI Technology: Features tungsten carbide insert technology for high-drillability formations.

Optimized Bearing Structure: Elastomer-sealed bearings ensure extended lifespan and reliable performance.

Superior Fluid Circulation: Three jet nozzles ensure efficient debris removal and cooling during operations.

Wear-Resistant Coating: Carbide material applied to palm tip and tooth edge to increase wear resistance.

Carbide Centralizer: Embedded on palm surface to reduce wear in grinding and horizontal formations.

Customizable Colors: Available in Blue, Red, Yellow, and other custom color options.

Fast In-Stock Delivery: Prepared for delivery within 1 week if the product is in stock.

Global Availability: Products available worldwide with support for projects of all sizes.

Company profile

Years of Export ExperienceImporters and ExportersHigh Repeat Buyers ChoiceSelf-branded

Hejian Hengji Bit Manufacture Co., Ltd.

Hebei, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.88hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW, DDP

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory/combined manufacturing entity in Hejian, China, with five production lines, 50 quality control staff, and ISO 9000/ISO 9001 management-system certifications. It demonstrates broad customization and R&D capabilities, including recent new products and ODM services, and reports OEM service for well-known brands. Quality controls include 100% finished-product inspection, raw-material traceability, complaint-handling procedures, and 10 stated quality assurance/control inspectors in one record, although another record states 50 quality control staff. After-sales offerings include installation, training, repair, maintenance, and debugging, but no overseas warehouses, showrooms, agents/branches, or prior offline trade-show participation are reported. Service procedures and records exist, while corrective/preventive-action procedures are not documented. Financial credibility cannot be determined from the provided information because the financial entries only identify...

Supplier typeThe supplier is described as a combined entity and factory, located in Hejian, Cangzhou, China, with manufacturing identified as the industry of associated companies. This supports classification as a direct manufacturing supplier rather than an offshore company.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 management-system certifications. These certifications provide explicit evidence of formal quality-management certification.

After-Sales capabilityThe supplier lists installation, training, repair, maintenance, and debugging services, and has a clear customer-complaint procedure with followed records. However, it reports no overseas warehouse, showroom, agent/branch, or overseas-service country, indicating that the documented service scope is not supported by an overseas physical network.

R&D capabilityThe supplier reports new products within the past year, ODM services, 50 years of total R&D engineer experience, and broad design customization. It does not have an available SDK, but the stated R&D and ODM evidence demonstrates product-development capability.

Production capacityThe supplier operates five production lines, reports an average off-season lead time within 15 workdays and peak-season timing within 15 workdays to one month, and identifies a machining center as a combined facility. It also reports 100% finished-product inspection and 10 qualified service-capability suppliers, supporting established production and service operations.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization in both R&D and design-service records. This is direct evidence of a broad customization range.

Client casesThe supplier explicitly reports providing OEM services for well-known brands, which is evidence of experience serving recognized-brand customers. No specific brand names, project details, volumes, or performance outcomes are provided, so the depth of these cases cannot be evaluated.

Product Q&A

Q:How does the design of the bit contribute to its performance?

The bit features a high-quality welded tooth surface for enhanced penetration rates and an optimized tooth design to improve wear resistance and drilling speed.

Q:Can the bit be customized based on specific needs?

Yes, HJ Bit offers tailored solutions for unique drilling requirements, ensuring the best performance for each project.

Q:What packaging options are available for this product?

The bit is packaged in wood boxes, with fumigation trays available if necessary. Custom packaging can also be provided based on the customer's needs.

Q:How soon can I receive the product after ordering?

If the product is in stock, it can be shipped within 1 week. Delivery time may vary depending on order quantity when out of stock.

Q:How is the product delivered?

The product can be delivered by sea or air, depending on your location and order specifications.