73-F18 Spiral drill pipes /twist drill rod for coal mining

FOB Price: US $12 - 20 / Piece | Get Latest Price
Min.Order Quantity: 3 Piece/Pieces
Supply Ability: 3000 Piece/Pieces per Day
Port: qingdao
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
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Quick Details

Place of Origin:
Shandong, China (Mainland)
Brand Name:
ruilong drill
Model Number:
Drill Pipe
Machine Type:
Drilling Equipment
Processing Type:
Coal Mining

Packaging & Delivery

Packaging Details: wooden case
Delivery Detail: within 5 days


1.diameter :72-F18
2.length :1000mm
3.material :DZ50

1. 73-F18 Spiral drill pipes /twist drill rod for coal mining introducation

73-F18 Spiral drill pipes /twist drill rod for coal mining  PDC drill bit is super hard material combined with diamond and hard alloy under high temperature and high pressure. It not only has the advantages of hard and durable from diamond, but also has the advantages of high impact resistance and big blade from hard alloy. It greatly improves the drilling efficiency and is the ideal drill bit for the drill operation of medium & hard as well as super hard rock. The carrier of PDC bits is forged and pressed by first-class steel. Its mechanical capacity is strengthened by fully automatic vacuum heat treatment equipment. The ordinary type adopts Chinese PCD as its blade, while the super-strong type adopts American blade made by GE. Choosing proper type makes high ratio of performance and price.


73-F18 Spiral drill pipes /twist drill rod for coal mining  Our PCD drill bits are widely used in all industries, such as coal mining, oil exploration, geological exploration, water and hydroelectric, railway and road, tunneling construction and so on. Two-wing PDC anchor bit (standard type) is applied to the hardness not bigger than f8. The working life is 10-30 times of the ordinary alloy bits, and the efficiency could be improved by 60%. Besides, the PDC bits don’t require figuring, which lows the labor intensity and helps to saves cost. GE, American company, produces the main material of the blade for two-wing PDC anchor bits (strengthened type). The diamond content is 1.5 times of the ordinary bits, which has excellent abrasive resistance and applied to medium and hard rock (f≤12). Super strengthened PDC bits adopt newly designed ball type diamond as its blade.

2. 73-F18 Spiral drill pipes /twist drill rod for coal mining

Drilling parameter
Dia. mmDrilling pressure (Kg)Rotate speed (rpm)Pump volume (1min)
28300—700300—350 150—200
30300—700300—350 150—200
32300—700300—350 150—200
48300—700300—350 120—160
56320—800250—350 130—180
75480—1200200—300 150—200
94640—1600150—250 200—250
110880—2200120—200 200—300
1521500—3000100—200 500—850
1901800—4000100—200 600—1200
2302200—4500100—200 750—1400
2702400-5000100—200 1000-1500

 3. 73-F18 Spiral drill pipes /twist drill rod for coal mining

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Linqing Ruilong Drilling Tools Co.,Ltd, established in 1993, is located in the famous ancient canal city---Linqing, Shandong, China.

Our company is professional in drill and drill bit used formine. The factory covers 16,000 square meters. There are 80 staff ,7 Professional Technical staff and more than 40 sets specialized equipment. At present, our products are serialized,new T beam with prestressed hollow drill pipe winding series: new drill pipe used for soft rock excavation,co... View detail

Basic Information

Business Type: Manufacturer, Trading Company  
Main Products: Drill Machine,Drill Rod,Drill Bit,Drill tools  
Number Of Employees: 101 - 200 People  

Trade & Market

Main Markets: Southeast Asia
Eastern Asia
Mid East
Eastern Europe
Northern Europe
Central America
North America
South America
Total Annual Sales Volume: US$50 Million - US$100 Million  
Export Percentage: 51% - 60%  

Factory Information

No. of Production Lines: 6  
Number of R&D Staff: 31 - 40 People  
Number of QC Staff: 21 - 30 People  
Certifications: ENTERPRISE CREDIT GRADE CERTIFICATE,Quality system certification certificate
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

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How It Works

China (Mainland) | Manufacturer, Trading Company | Contact Details
Experience: Established 2007 , 18 years OEM

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Ms. Drill-June Zhang
Ms. Drill-June Zhang:
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