How long is the delivery time?

The average lead time is within 15 working days, regardless of peak or off-season.

What thread types are available?

We provide various thread connections including NC38, NC50, BTC, LTC, and STC to fit different casing and drill pipe requirements.

Is quality inspection performed?

Yes, 100% visual inspection is conducted on all finished products to ensure quality and reliability.

High-Performance Downhole Drilling Circulating Sub with Tough Threads

Name: High-Performance Downhole Drilling Circulating Sub with Tough Threads
Brand: Mudanjiang Kaidi Petroleum Machinery Co., Ltd.
SKU: 2091926082

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

Lifetime Support

Warranty

12months

Model NO.

J030701

Manufacturing Process

CNC Milling

Surface Treatment

Spray-Paint

Operation Pressure

Atmospheric Pressure

Material

Alloy

Transport Package

Wooden

Specification

Circulating Sub

Trademark

KAIDI

Origin

China

HS Code

8401100000

Key features

Lifetime Support: Comprehensive after-sales support available for the entire lifecycle of the product.

Custom Manufacturing: Full customization available from samples, designs, or specific customer drawings.

Special Material Processing: Expertise in processing nickel-based and titanium alloys for high strength and corrosion resistance.

CNC Precision Manufacturing: Utilizes advanced CNC milling and machining centers for accurate complex part processing.

100% Quality Inspection: Every finished product undergoes strict visual inspection before shipment.

Fast Lead Time: Efficient production with lead times within 15 working days for both peak and off-season.

Versatile Thread Options: Available with NC38, NC50, BTC, LTC, and STC threads to match various casing and drill pipe needs.

Proven Manufacturer: Established in 2015 with 10 years of export experience and strong technical capabilities.

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.