Main Products: PDC Bits ,Drill Pipe
22" roller hole opener ,HDD reamer best-selling in china
USD $10 - $100,000,000 /Piece
Min.Order:5 Pieces
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Henan Zhongmei Drill Tool Co., Ltd.
Business Type: Manufacturer,Trading Company
Kaifeng Henan ChinaMain Products: PDC Bits ,Drill PipeProduct Details
10"- 48" holeopener, underreamer, HDD reamer is our specialized product, efficiency for horizental directional drilling
10',12",14",16",18"20",22'',24''26'',28'' holeopener, roller hole opener, HDD reamer is our specialized product, efficiency for horizental directional drilling
Product Name: Roller hole opener
size:10",12",14",16",18",20",22'',24''26'',28'',30",36" holeopener
Material: 4145H
Chemical Analysis &Physical
C | Cr | Mo | Si | Mn | P | S | Ni |
0.45 | 1.10 | 0.26 | 0.20 | 1.10 | 0.017 | 0.006 |
|
Mechanical Testing
Yield strength RP0.2 N/mm2 | Tensile strength Rm N/mm2 | Elongation A% | Section Shrinkage Z % | Impact Akv J | Hardness HB 10/3000/30 |
915 | 1030 | 16.5 |
| 78 | 316 |
SIZES
Dia of the hole | Quatity of cones | Min Dia of the hole | Fishing neck |
| Water hole | Total length | NW | |||||
L | D | Upper Thread | Down thread |
|
|
| ||||||
311(12-1/4) | 3 | 246(8-1/2) | 457.2(18) | 203(8) | 6-5/8REG | 4-1/2REG | 38.1(1-1/2) | 1524(60) | 360 | |||
444.5(17-1/2) | 3 | 266.7(10-1/2) | 457.2(18) | 241.3(9-1/2) | 7-5/8H90 | 7-5/8REG | 57.2(2-1/4) | 1752(69) | 550 | |||
660.4(26) | 3 | 444.5(17-1/2) | 457.2(18) | 241.3(9-1/2) | 7-5/8REG | 7-5/8REG | 76.2(3) | 1753(69) | 900 | |||
914.4(36) |
| 609.6(24) | 609.6(24) | 241.3(9-1/2) | 7-5/8REG | 7-5/8REG | 76.2(3) | 1905(75) | 1000 | |||
914.4(36) | 4 | 457.2(18) | 457.2(18) | 254(10) | 7-5/8REG | 7-5/8REG | 88.9(3-1/2) | 2642(104) | 1540 | |||
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