High Performance Raise Boring Machine Drill Rod for Drilling Rigs

Name: High Performance Raise Boring Machine Drill Rod for Drilling Rigs
Brand: ETERNAL
Rating: 5.0 (2 reviews)

ETERNAL company specialize on manufacturing raise boring drill pipes from 8" to 15" ,which are applicated to bore all kinds of tunnels and shafts . They choose high strength alloy steel forgings materials and heat treatment. Therefore they have excellent mechanical properties and impact values.In the past years , RBM drill pipes ( drill rod ) have been exported to many countries, such as South Africa , Brazil , Chile , Mexico , Russian , Vietnam , Korea etc.They could be installed on machines of Atlas Copoc,Robbins,NFM,etc .

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Model:
RBM-DP,10",Customized
Brand:
ETERNAL

Product Description

Product Specification

1. Size: 10",OD254*L1524,Customized

2. Material: Alloy steel 4145H

3.Product Procedure:Forging,heat treatment,lathe machining

4. Heat treatment: Quenching and tempering

5. Surface treatment: Surface quenching

6. Surface hardness: HRC55-62

7. Transport packaging: Wooden case

Mechanical property

Tensile strength : min 970MPA

Yield strength : 755MPA,

Impact value :min 54J

Elongation:min 13%

Reduction of Area:min 45%

Product feature

drill pipe feature

Size and technical specification

Norminal size	Shoulder to shoulder length	Small bore diameter	Diam.of boreback	Length of boreback	shoudler to first spanner flat	Width of spanner flat	Shoudler to end of spanner flats	Dimension across spanner flat	Connections	Weight
A	B	C	D	E	F	G	H
in mm	in mm	in mm	in mm	in mm	in mm	in mm	in mm	in mm		kg
8”203.2	48"1219.2	4-3/4“120.7	6 5/32"156.4	22”558.8	1 1/2"38.1	2 3/4”69.9	8 1/4"209.6	6 7/8“174.6	6 3/4"R.B.-DI22	170
10”254	60”1524	4-3/4"120.7	7 7/16“188.9	36"914.4	1 1/2"38.1	2 3/4”69.9	8 1/4"209.6	8”203.2	8 1/4"RB-D122	345
11-1/4”286.8	60"1524	4-3/4”120.7	7 11/16”195.3	36"914.4	1 1/2"38.1	3 1/2”88.9	10"254	9"228	9 1/4"R.B.-DI22	480
12-7/8”323.9	60”1524	5-7/16"138.1	9”228.6	36”914.4	1 9/16”39.7	3 15/16"100	11"279	10 1/2”266.7	10 1/2"RB.-D122	640
12-7/8”323.9	120"3048	5-7/16"138.1	9”228.6	96”2438.4	1 9/16”39.7	3 15/16”100	11"279	10 1/2”266.7	10 1/2"R.B.-DI22	1270