Do you agree to sample orders?

Yes, we welcome sample orders to test our quality.

Does your drill pipe have rust prevention?

Yes, every drill pipe is treated with paint or anti-corrosive oil before shipping, and thread surfaces are nitrided.

Do you have after-sale service and warranty service?

Any confirmed quality or quantity problem will be compensated. We reply to any questions within 24 hours.

What is your minimum order quantity?

At least 10 pieces, but small orders are also accepted.

50mm Drill Pipe Rig Adapter Coupling / Pin Box Tool Joint

Name: 50mm Drill Pipe Rig Adapter Coupling / Pin Box Tool Joint
Brand: Shijiazhuang Weilida Prospecting Machinery Co., Ltd.
SKU: 2013480345

Hebei, ChinaShijiazhuang Weilida Prospecting Machinery Co., Ltd.

US$15.00

5-99 Pieces

US$11.00

100+ Pieces

Sample price:US$17.00/piece.Request sample

Product profile

Customization

Available

Certification

CE, ISO 9001:2000, ISO 9001:2008

Standard

AISI, BS, JIS, DIN

Model NO.

couplings

Material

Carbon Steel

Thread Type

2 3/8" API Reg, 3 1/2" API Reg (API Thread, Custom

Product Technology

Friction Welding, Nitrading, Tempering Treatment

Product Name

50mm Drill Pipe Rig Adapter Coupling Pin Box

Size

Customize

Specification

57mm-159mm

Trademark

WEILIDA

Origin

China

Production Capacity

100000 Pieces

Key features

Precision CNC Machining: Threads machined by precision CNC lathe for guaranteed tightness and interchangeability.

Customizable Sizes: Size and thread types are fully customizable to meet specific customer requirements.

Multiple Material Options: Available in 40CrMo, 35CrMo, and 4137H carbon steel grades.

Friction Welding Technology: Utilizes flash welding process for strong and reliable tool joint connections.

Rust Prevention Treatment: Drill pipes include paint or anti-corrosive oil and nitrided thread surfaces.

Flexible MOQ Policy: Accepts small orders with a minimum of 1 piece, though 10 pieces is standard.

Third-Party Quality Inspection: Clients can send QC staff or third-party agencies like SGS or BV for inspection.

Comprehensive Certifications: Certified with CE, ISO 9001:2000, and ISO 9001:2008 standards.

Company profile

Shijiazhuang Weilida Prospecting Machinery Co., Ltd.

Hebei, China

Business Type: Manufacturer/FactoryExport Year: 2022-06-20Nearest Port: TianjinAverage Response Time: ≤15hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryShijiazhuang Weilida Prospecting Machinery Co., Ltd. is identified as a Chinese manufacturer/factory and limited company producing drill pipes, drilling tools, drill rigs, and related components. Evidence indicates an established operation founded in 1988, with an approximately 13,000-square-meter factory, 80 employees, three production lines, CNC and friction-welding equipment, and testing capability. The supplier reports ISO 9001 and ISO 14001 certifications, export capability, broad international markets, and stated lead times of within 15 workdays off-season and one month during peak season. It can produce multiple national and international standard specifications and design special products to customer requirements. However, the provided information does not substantiate after-sales service processes, customer case references, or financial credibility. Innovation capability is supported only by limited evidence of R&D personnel and product-design activity.

Supplier typeThe supplier is described as both a trade company in one record and a Manufacturer/Factory in another. Its product, factory, address, and business descriptions consistently support that it operates as a manufacturing supplier specializing in drilling machinery and tools, although the records contain a classification inconsistency.

CertificationsThe supplier reports ISO 9001 and ISO 14001 management-system certifications. Its company description also states that a quality management system was established in accordance with ISO 9001 and is operated through formal personnel training.

R&D capabilityThe supplier reports 6–10 years of total R&D engineer experience and states that it can design and manufacture special drill-pipe and drilling-tool specifications. It also describes efforts to enhance product technical content, providing positive but limited evidence of innovation capability.

Production capacityProduction capability is supported by three production lines, a 13,000-square-meter modern factory, 80 employees, CNC lathes, friction-welding and pipe-end processing equipment, complete production facilities, and a product range covering drill pipes, drilling tools, rigs, and related components. The supplier also reports quality-control personnel and broad export-market coverage.

Customization capabilityThe supplier explicitly states that it can manufacture various national, Russian, American, and European standard products and can design and produce special specifications according to customer needs. It also indicates that mechanical-performance testing of drilling tools can be conducted as required.