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Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling

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    Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers
     
    Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers
    • Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers
    • Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers
    • Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers
    • Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers
    • Buy cheap Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling from wholesalers

    Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling

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    Brand Name : ROSCHEN
    Model Number : Dia.32mm, dia.38mm, dia.39mm, dia.46mm, dia.52mm
    Certification : ISO9001
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    Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling


    Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling


    General Introduction:


    Roschen’ drifting and extension drill rods are for in drifting, tunneling, long-hole drilling, bench and production drilling industries. These rods are produced with round or hexagonal sections in all common thread designs, and in Male/Male (M/M) or Male/Female (M/F) connections. All our drifting and extension drill rods are heat-treated with carburization or high frequency, combinated with phosphorization.


    The round cross sections are more prevalent for extension drilling applications. A round rod has less material and thus is lighter to handle and less expensive than an equivalent size hexagonal rod. While hexagonal rod is particularly advantageous for drifting and tunneling drilling. The increased rigidity of hexagonal drill rods enables them to abating hole-deviation and enhances flushing for cleaning holes. Even with the larger cross section, hexagonal steel can still accommodate the same diameter bit as that of an equivalent round steel.


    M/F rods provides tighter connections and is easier for handling and quicker for uncoupling than M/M rods, and are potential to drill straighter holes.


    Carburization technique is mainly used in the production of big diameter rods to ensure excellent performance. Carburizing is for hardening entire rod to provide an external over entire rod surface area. Carburized steels are used primarily in underground applications and where water is used as a flushing medium. High Frequency technique is primarily used in the production of small diameter rods to reduce fragileness of drill steels. High Frequency is for hardening only the thread ends of the rod. This provides the longevity of the product as well as being more suitable for more drilling condition need. Steels produced with this technics primarily used in surface drilling applications where air is the primary flushing medium. Phosphorising is to improve anti-erosion capability of the entire external rod surface area.


    Specification Overview:


    Rods Dimension

    Length

    Driven Thread

    Suitable Bits Thread

    Drilling Hole Range

    M-M

    M-F

    mm

    foot

    mm

    foot

    mm

    inch

    Hex.25

    915 ~ 3700

    3 ~ 12

    610 ~ 1220

    2 ~ 4

    R25, R28, R32

    R25

    33 ~ 51

    1 19/64 ~ 2

    Hex.28

    2100 ~ 4920

    6 3/4 ~ 16

    1220 ~ 3050

    4 ~ 10

    R28, R32, R38

    R28

    37 ~ 51

    1 29/64 ~ 2

    Hex.32

    2400 ~ 5530

    7 7/8 ~ 18

    R28, R32, R38, T38

    R32

    40 ~ 64

    1 37/64 ~ 2 1/2

    Round32

    915 ~ 4310

    3 ~ 14

    915 ~ 4270

    3 ~ 14

    R32, R38, T38

    R32

    45 ~ 64

    1 3/4 ~ 2 1/2

    Hex.35

    2670 ~ 6100

    8 5/8 ~ 20

    3700 ~ 6400

    12 ~ 21

    R32, R38, T38

    R32

    45 ~ 76

    1 3/4 ~ 3

    Round39

    610 ~ 6095

    2 ~ 20

    610 ~ 6095

    2 ~ 20

    R38, T38, T45

    T38, T45

    57 ~ 89

    2 1/4 ~ 3 1/2

    Round46

    1830 ~ 6095

    6 ~ 20

    1525 ~ 6095

    5 ~ 20

    T38, T45, T51

    T45, T51

    70 ~ 102

    2 3/4 ~ 4

    Round52

    3050 ~ 6095

    10 ~ 20

    1525 ~ 6095

    5 ~ 20

    T45, T51

    T45, T51

    76 ~ 127

    3 ~ 5

    Quality Custom Round T38 T60 Extension Drill Rods for Drifting / Tunneling for sale
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