R35 extension rod

R35 extension rod for tunneling jumbo drilling tools

The R35 extension rod is manufactured using special steel for hollow drill rods. The internal hollow channel is generally referred to as a flushing hole, and its main function is to deliver water or air during drilling operations.

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Description

R35 Extension Drill Rods for Tunneling Jumbo Drilling Rigs

R35 extension drill rods are widely used as drill tools for tunneling jumbo drilling rigs.

Specifications of the R35 Extension Drill Rod

  1. Male thread (external thread) T38 hexagonal 35mm to male thread (external thread) R35.
  2. Female thread (internal thread) T38 hexagonal 35mm to male thread (external thread) R35.
  3. Male thread (external thread) T38 hexagonal 39mm to male thread (external thread) R35.

Technical Information of the R35 Extension Drill Rod

  • Lengths: 4305 mm, 4915 mm, 6135 mm, etc.
  • Weight: Ranges from 33.8 kg to 49.3 kg.
  • Material: High-strength alloy structural steel, 23CrNi3Mo.
  • Manufacturing process: Forging process, full carburization, high-frequency treatment, and phosphating process.
Technical Parameters
R35 extension rod for tunneling jumbo drilling tools
Drifter rodL (mm)L (foot, inch)H (mm)H (inch)Order numberWeight (kg)

T38-Hex35-R35

T38-Hex35-R35

430514', 1 31/64"351 3/8B276-3543-765533.8
491516', 1 1/2"351 3/8B276-3549-765538.4
552518', 1 33/64"351 3/8B276-3555-765543.3
613520', 1 1/2"351 3/8B276-3561-765548.0

T38-Hex35-R35 MF rod

T38-Hex35-R35 MF rod

430514', 1 31/64"351 3/8B296-3543-765534.0
491516', 1 1/2"351 3/8B296-3549-765538.6
552518', 1 33/64"351 3/8B296-3555-765543.5
613520', 1 1/2"351 3/8B296-3561-765548.2

T38-Round39-R35

T38-Round39-R35

430514', 1 31/64"391 1/2B270-3943-765534.2
491516', 1 1/2"391 1/2B270-3949-765539.2
552518', 1 33/64"391 1/2B270-3955-765544.3
613520', 1 1/2"391 1/2B270-3961-765549.3
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R35 extension rod for tunneling jumbo drilling tools