Rosenwell Hot Sale Cross-Over Sub for Connection /Sub Crossover / Cross-Over Subs

Product Description

 

Product Description

 Crossover sub is mainly used to connect upper and lower drill tools in different connectors in drilling operations. Also it can be used to protect other tooling in drill stem (called saver sub) or be used to deliver outgoing air to the bit face just above the bit (called bit sub).
The length of crossover subs is generally measured from shoulder to shoulder. Typical lengths range from 6" - 28" long going up in increments of 2 inches with AISI 4145H, AISI 4145H Mod, AISI 4340, AISI 4140-4142 and Non-magnetic material. All connections are phosphate-coated or copper plated to improve resistance to corrosion. Crossover subs come in three basic types: A Pin (male) * Box (female); B Pin (male) * Pin (male); C Box (female) * Box (female)

 

Product Parameters

Description	Upper Connection pat	Lower Connection Part	Type
Kelly cross-over sub	Kelly	Drill pipe	A or B
Drill pipe cross-over sub	Drill pipe	Drill pipe	A or B
Interim cross-over sub	Drill pipe	Drill collar	A or B
Drill collar cross-over sub	Drill collar	Drill collar	A or B
Drill bit cross-over sub	Drill collar	Drill bit	A or B
Swivel cross-over sub	Swivel lower sub	Kelly	C
Fishing cross-over sub	Kelly	Drill pipe	C
	Drill pipe	Fishing tools	C
Crossover sub can be customized as per customer's design.

Detailed Photos

 

 

FAQ

 

1. Who are we?

We are based in Shandong, China, since 2017. We cater to Eastern Europe (40.00%), the Mid East (20.00%), Domestic Market (15.00%), South America (15.00%), and North America (10.00%). Our dedicated team comprises approximately 5-10 professionals in our office.

2. How can we guarantee quality?

We consistently provide a pre-production sample before mass production.

We perform thorough final inspections before shipment.

3. What can you buy from us?

We offer a wide range of products including drilling rigs, mud pumps, top drives, drawworks, and various spares.

4. Why should you buy from us and not other suppliers?

Rosenwell Petro is a highly reputable manufacturer and solution provider for mud pumps and drilling pumps in the oil and gas industry. We specialize in consumable parts, focusing on increasing parts' lifespan, reducing operational costs, and shortening downtime. Our parts are meticulously manufactured to the highest standards.

5. What services can we provide?

Accepted Delivery Terms: FOB, CFR, CIF, EXW, CIP, FCA, CPT, DDP, DDU, Express Delivery.

Accepted Payment Currencies: USD, EUR, CNY.

Accepted Payment Types: T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow.

Languages Spoken: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Italian.
Best IBOP supplier, your reliable partner!

Company Profile

About Us:
Shandong Rosenwell Petroleum Technology Co., Ltd. (hereinafter referred to as 'Rosenwell') is strategically located in Dongying City, the second-largest oilfield and the biggest petroleum equipment industry base in China.
Since 2010, Rosenwell has been engaged in top drive servicing and the supply of interchangeable spares. We are a leading supplier of interchangeable replacement spares for top drive brands such as:
NOV, CANRIG, TESCO, BPM,
TPEC, JH,
and more.
etc.

Warranty :

• Our products boast reliable quality, tested and approved by the market.
• We offer competitive pricing, adding significant value to our partners.
• We maintain stock availability, ensuring the shortest lead times.

Main Products:

• We provide all types of mechanical and rubber seals, and rings.
• We offer repair kits for both hydraulic and mechanical systems.
• We supply regular expendable assemblies, such as IBOP, washpipe assemblies, S-Pipes, *** assemblies, hydraulic cylinder assemblies, yokes,

actuators, cam followers, and more.

Our Culture

Contact Us

 

Shandong Rosenwell Petroleum Technology Co., Ltd.

Contact Person: Chelsy Gao
Mobile: [phone]
Address: 4th Floor, No. 10 Yandong Road, Dongying City, Shandong, China.