Factory Price Mining Machinery 3 1/2 Inch Reverse Circulation Drilling RC Drill Pipe/Rod

• Customization: Available
• After-sales Service: 6 Months
• Warranty: 6 Months
• Model NO.: 3 1/2
• Certification: ISO 9001:2008
• Surface Treatment: Nitridation
• Manufacturing Process: Forging
• Material: Stainless Steel
• Item: Reverse Circulation Drill Pipe
• Steel Grade: R780
• Diameter: 89mm
• Thread: API Standard Thread
• Delivery Time: 7-15 Days
• Application: Geothermal or Drilling
• Transport Package: Bundle
• Specification: 3 1/2
• Trademark: WEILIDA
• Origin: China
• HS Code: 8431431000
• Production Capacity: 300pieces/Month
• Package Size: 15.00cm * 15.00cm * 20.00cm
• Package Gross Weight: 106.000kg

Product Description

Product Description

What is reverse circulation drilling?
Reverse circulation (RC) drilling represents a fast,economical and efficient way. The RC drilling method will reduce dramatically both overall drilling costs and impact on the environment. It not only prevents cross contamination but also enables a large number of sample bags in a short amount of time.
Why choose us?
Weilida reverse circulation drill pipe is made of high-strength alloy steel and wear-resistant inner tube produced by well-known domestic steel mills.Both ends of the pipe body adopt the internal thickening process,then temered after friction welding.Drill pipe joints are quenched and tempered after rough machining,and surface phosphating and nitriding treatment after finishing,that makes the joints more wear-resistant and easy to disassemble without thread gluing,breaking and joint expansion and cracking.All threads are processed by precision CNC lathes with customized forming cutters, and all threads are equipped with thread gauges that meet international standards. Therefore, the quality of the drill pipes pro-duced is stable and reliable, and the service life is qreatly extended.
 

Technical parameters

OD		Thickness	Length	Thread
inch	mm	mm	mm	Remet/Metzke/FH/IF
3 1/2	89	6--10	1500--9500	Remet/Metzke/FH/IF
4	102	6--10	1500--9500	Remet/Metzke/FH/IF
4 1/4	108	6--10	1500--9500	Remet/Metzke/FH/IF
4 1/2	114	8--10	1500--9500	Remet/Metzke/FH/IF
5	127	8--10	1500--9500	Remet/Metzke/FH/IF
5 1/2	140	8--10	1500--9500	Remet/Metzke/FH/IF
7	178	8--10	1500--9500	Remet/Metzke/FH/IF

We can produce drill pipes of different materials, lengths, diameters, and wall thicknesses, and we can also customize dril pipes according to the materials, lengths, wall thicknesses,and threads required by customers.

Our company&Factory scene

  Shijiazhuang Weilida Prospecting Machinery Co., Ltd. (formerly known as North Petroleum Geophysical Exploration Machinery Factory) was founded in 1988. It is located in Jinzhou City, Shijiazhuang City, an important industrial base in Hebei Province. It has a beautiful environment and a superior geographical location. It is 5 kilometers away from the Jinzhou South Exit of Shiheng Expressway, 15 kilometers away from Xinji South High-speed Railway Station, and 50 kilometers away from Zhengding International Airport, 3 hours away from Beijing Daxing International Airport.

   Our company has a modern factory area of 13,000 square meters and 80 employees.we are an enterprise that integrates the design, manufacturing, testing, domestic and foreign trade sales of drilling machinery and drilling tools, that are rare both at home and abroad. We can produce GB, Gost, API and IOS standards drilling tools, and can also design and manufacture special specifications of drilling tools according to customers needs.

  Our mainly produces: HDD drill pipe, DTH drill pipe, anchor drill pipe, coal mine drill pipe, oil drill pipe, water well drill pipe, geological exploration drill pipe, casing drilling tools, adapter sub, hydraulic pipe winching device, mud pump, portable drilling rig, core tube, casing, and so on. We can also design and manufacture drilling machinery equipment with special specifications according to customer needs.

  Our company has a number of domestic advanced CNC lathes, friction welding machines, pipe end upsetting and thickening machines, and complete production equipment. The quality management system has been established in accordance with ISO9001, and the professional system management personnel have conducted multiple trainings for all employees. The quality management system is in perfect and effective operation. From the signing of the order to the inspection and delivery of finished products, we use various identification methods such as labels, lettering, and spray paint, and record all data to ensure product traceability. We are also equipped with various specifications of thread gauges, pitch testing instruments, taper testing equipment, flaw testing equipment, hardness testing equipment, with the required physical and chemical testing equipment, and we can conduct comprehensive mechanical performance testing on drilling machinery equipment as required.

   We always take sincere cooperation, reliable quality and high-quality service as our corporate philosophy, improve self-management level, adjust market layout, improve product technology content, and solve customer needs, so that customers can buy with confidence and use comfortably.

Quality control

Process

Packing&Delivery

Sales Team

FAQ

Q: Are you trading company or manufacturer ?
A: We are a professional manufacturer.
Q: How long is your delivery time?
A: Generally it is 10~20 days if the goods are in stock. or it is 20~30 days if the goods are not in stock, it is according to
quantity.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.