What materials are used for the Circulating Sub?

The product is made from Alloy 4145H with a spray-paint surface treatment.

Does the product support BHA integration?

Yes, it is compatible with standard drill string connections such as NC, Reg, and FH.

What quality control measures are in place?

We perform 100% visual inspection on finished products and ensure full traceability of raw materials.

Wear Sub

Name: Circulating Sub with Drill Pipe Thread /Connection/Wear Sub
Brand: Mudanjiang Kaidi Petroleum Machinery Co., Ltd.
SKU: 2090837082

Heilongjiang, ChinaMudanjiang Kaidi Petroleum Machinery Co., Ltd.

US$250.00-1,000.00

1 Piece

Sample price:US$250.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Provide

Warranty

1 Year

Model NO.

J03

Manufacturing Process

CNC Milling

Surface Treatment

Spray-Paint

Operation Pressure

Atmospheric Pressure

Material

Alloy

OEM

Provide

Others

ISO

Alloy

4145h

Transport Package

Wooden Case

Specification

DWT89

Trademark

KAIDI

Origin

China

HS Code

8431431000

Key features

Dual-Port Design: Enables fluid diversion between annulus and drill string for efficient wellbore cleaning.

Reduced NPT: Minimizes stuck pipe risks by enabling immediate circulation in demanding conditions.

BHA Integration: Compatible with standard drill string connections including NC, Reg, and FH.

Flexible Operation: Configurable for pressure-activated automatic or manual mechanical activation.

OEM & Customization: Full and flexible customization available from samples or designs with OEM service.

Quality Assurance: 100% visual inspection of finished products with full raw material traceability.

Durable Material: Constructed from high-strength Alloy 4145H with spray-paint surface treatment.

Fast Lead Time: Average production lead time within 15 workdays for both peak and off-season.

Company profile

Importers and ExportersYears of Export ExperienceQuality AssuranceHigh Repeat Buyers Choice

Mudanjiang Kaidi Petroleum Machinery Co., Ltd.

Heilongjiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: DalianAverage Response Time: ≤5.56h

AI-Powered supplier vetting

SummaryKaidi Petroleum Machinery is a limited company with 21 employees, focused on API oilfield drilling tools and non-standard OEM products. It reports OEM service for well-known brands, modern CNC-based production equipment, two production lines, and export experience of 10 years. Its customization capabilities cover samples, designs, minor changes, full customization, and flexible customization. Quality controls include documented inspection instructions, quality assurance, traceable raw-material identification, complaint procedures, and corrective-action processes. However, it reports no supplier-management certification, no available SDK, only one R&D engineer, and no available R&D audit documentation. Financial credibility cannot be assessed because the provided financial fields contain years rather than financial results or monetary data.

Supplier typeThe supplier is identified as a limited company with 21 employees and no parent group affiliation. Its stated business is technology-based petroleum equipment, specifically API oilfield drilling tools and non-standard OEM products.

CertificationsNo supplier-management system certification is reported. This is a stated absence of certification evidence, although the supplier does report quality assurance, traceability, documented procedures, and maintained quality records.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with records, and it maintains written procedures and records for service-capability assessment and corrective/preventive actions. These controls support after-sales handling, but no specific response-time or service coverage information is provided.

Production capacityProduction resources include CNC cutting and machining equipment, CNC and conventional lathes, laser marking, sandblasting, cranes, modern workshops, two production lines, and eight quality-control testing devices. The supplier also reports a lead time within 15 workdays during off-peak seasons, supporting an established production capability.

Customization capabilityThe supplier explicitly offers customization from samples and designs, minor and full customization, and flexible customization. It also reports strong customization for special-alloy processing and OEM services for well-known brands, providing direct evidence of broad customization capability.