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Integral Spiral Drill Collar - China

price: contact company for price

钻铤规格 外径 内径

长度 倒角直径

参考弯曲

强度比

NC23-31 79.4 3 1/ 8 31.8 1 1/4 9150 76.2

2.57 :1

NC26-35 88.9 31.2 38.1 1 1/2 9150

82.9 2.42 :1

NC31-41 104.8 4 1/8 50.8 2 9150

100.4 2.43 :1

NC35-47 120.7 4 3/4 50.8 2 9150

114.7 2.58 :1

NC3850 127.0 5 57.2 2 1/4 9150

121.0 2.38 :1

NC44-60 152.4 6 57.2 2 1/4 9150或9450 144.5

2.49 :1

NC44-62 158.8 6 1/4 57.2 2 1/4 9150或9450 149.2

2.91 :1

NC44-62(4IF)158.8 6 1/4 71.4 2 13/16 9150或9450

150.0 2.63 :1

NC46-65(4IF)165.1 6 1/2 57.2 2 1/4 9150或9450

154.8 2.76 :1

NC46-65(4IF)165.1 6 1/2 71.4 2 13/16 9150或9450

154.8 3.05 :1

NC46-67(4IF)171.4 6 3/4 57.2 2 1/4 9150或9450

159.5 3.18 :1

NC50-67(41/2IF)171.4 6 3/4 71.4 2 13/16 9150或9450

159.5 2.37 :1

NC50-70(4 1/2IF)177.8 7 57.2 2 1/4 9150或9450 164.7

2.54 :1

NC50-70(4 1/2IF)177.8 7 71.4 2 13/16 9150或9450 164.7

2.73 :1

NC50-72(4 1/2IF)184.2 71/4 71.4 2 13/16 9150或9450

169.5 3.12 :1

NC50-77 196.8 7 3/4 71.4 2 13/16 9150或9450 185.3

2.70 :1

NC50-80 203.2 8 71.4 2 13/16 9150或9450 190.1

3.02 :1

6 5/8REG 209.6 8 1/4 71.4 2 13/16 9150或9450

195.7 2.93 :1

NC61-90 228.6 9 71.4 2 13/16 9150或9450 212.7

3.17 :1

7 5/8REG 241.3 9 1/2 76.2 3 9150或

9450 223.8 2.81 :1

NC70-97 247.6 9 3/4 76.2 3 9150或9450

232.6 2.57 :1

NC 70-100 254.0 10 76.2 3 9150或

9450 237.3 2.81 :1

8 5/8REG 279.4 11 76.2 3 9150或

9450 266.7 2.84 :1


Company Contact:


  • Phone: 03916080816

  • Address: Jiyuan City Henan Province of China Mainland, Jiyuan , China

  • Email: Email


Published date: April 27, 2013 -

  • Business Description: JIYUAN CITY HUAZHONG METALLURGICAL MACHINERY CO.LTD is located in Jiyuan

    City Henan Province of China Mainland, created in 2006 with the

    registered capital RMB 5 million. Nowdays it has grown as a middle

    export enterprise which operates metallurgical spare parts, machining,

    steel products and forging so on.

    We have heat treating and machining workshops with the variety of equipments. Such as,box type resistance furnace, pit type resistance furnace, the domestic advanced double medium frequency quenching machine handling the maximal workpiece diameter of 600 mm, the maximal workpiece length of 5000 mm in heat treating workshops . In mechanical processing workshop with strong mechanical processing capacity, there are a variety of large and medium and heavy duty lathe, deep hole drilling and boring machine, CNC gantry milling machine, horizontal boring machine, grinding machine, sawing machine and a series of heavy machinery processing equipment. There are many senior technicians , experienced technical personnel and management personnel.

    The products we could manufacture include forged steel roller, leveling rolls, corrugated roller and pipe mould so on as per the customer s specific requirements.

    Our aim is to use our service and sincere exchange for your trust and supports, Quality and credibility are the most basic concepts to build our brand and create mutual benefit and win win situation.

    We are willing to sincerely cooperate with all the colleagues home and abroad in order to create a better future.

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