High Strength 4 Inch RE545 Reverse Circulation Hammer Drilling Reverse Circulation Drill Rod
High Strength 4 Inch RE545 Reverse Circulation Hammer Drilling Reverse Circulation Drill Rod
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Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: ISO
Model Number: 3" ~ 5"
High Light:

button bits rock drilling


mincon hammers

Payment & Shipping Terms
Packaging Details: Steel Bundle
Supply Ability: 1000000 pcs
Name: Dth Hammer Drilling
Size: 4 Inch
Feature: High Strength
Use: Ore Mining,Well Drilling
Processing Type: Forging,Casting
Material: Carbon Steel,Carbide
Product Description

High Strength 4 Inch RE545 Reverse Circulation Hammer Drilling Reverse Circulation Drill Rod


Dth Hammer Drilling Quick details


Application Range: Geological exploration,ore mining.


Design Principles: To arrive at target depth exactly and improve the productive efficiency with low cost,durable using.



  • High impact frequency
  • Fast penetration
  • Low air consumption
  • High crush function
  • Excellent energy transfer to the drill bit
  • High discharge / flushing capability
  • Extremely high penetration rate
  • Long life performance.
  • Handles injection of water, foam, oil, and polymers without performance loss.


Dth Hammer Drilling Introduction


Reverse Circulation is used in drilling programs for initial exploration and also for resource definition. There are two types of RC drilling. One is RC with hammer, used in medium and hard rock that can reach depths up to 800m. Rods are usually 4" and 4 ½" diameters.

The other is Air Core drilling used in softer oxide and clay ground to depths of 100m using Air Core & Vacuum Bits designed specifically for the type of ground conditions. RC Rods used for Air Core drilling are normally 3" to 3 ½". Roschen's has broad experience in the design and manufacture of Air Core Drilling equipment to suit a variety of ground conditions.

Roschen offers a complete line of premium quality reverse circulation, drill rods, in sizes from 3 1/2" to 10 3/4", and with a number of thread connections. All Reverse Circulation rods are manufactured using the most advanced technologies and specifically engineered to provide high strength, excellent wear resistance, and long life.

RC, dual wall drill rods are manufactured with an outer drill rod and an inner tube located inside the rod. When the drill rods are threaded together, the inner tubes seal together to provide a continuous route for cuttings to travel from the bit face to the surface for collection.

Dth Hammer Drilling Parameters


Reverse circulation (RC) Hammer Quick Reference
Size RC Hammer Model ROSCHEN RC Hammer Model
3" RC Hammer RE035 ROS RC 35
4-4 1/2" RC Hammer RE004 ROS RC 40
RC Hammer RE540 ROS RC 45
5" RC Hammer RE040 ROS RC 50
RC Hammer RE542 ROS RC 50
RC Hammer RE543 ROS RC 50
RC Hammer RE545 ROS RC 50
5-5 1/2" RC Hammer RE052 ROS RC 55
RC Hammer RE547 ROS RC 55
5 1/2-5 3/4" RC Hammer RE054 ROS RC 55
RC Hammer RE140 ROS RC 55


Thread Type Remet Remet Remet Metzke Metzke Matrix Matrix
Rod O.D. 3 1/2" 4" 4 1/2" 4" 4 1/2" 4" 4 1/2"
Outer Tube O.D. 88.9mm 101.7mm 114.3mm 101.7mm 114.3mm 101.7mm 114.3mm
Outer Tube I.D. 81.8mm 94.6mm 107.2mm 94.6mm 107.2mm 94.6mm 107.2mm
Outer Tube W.T. 5.3mm 7.1mm 7.1mm 7.1mm 7.1mm 7.1mm 7.1mm
Inner Tube O.D. 38.1mm 50.8mm 63.5mm 50.8mm 63.5mm 50.8mm 63.5mm
Inner Tube I.D. 32.6mm 45.3mm 58mm 45.3mm 58mm 45.3mm 58mm
Inner Tube W.T. 5.5mm 5.5mm 5.5mm 5.5mm 5.5mm 5.5mm 5.5mm
Spanner Flat 90mm 90mm 90mm 90mm 90mm 90mm 90mm
Weight 3.0m 75kg. 75kg. 95kg. 75kg. 95kg. 75kg. 95kg.
Weight 6.0m 120kg. 150kg. 168kg. 150kg. 168kg. 150kg. 168kg.

Please contact your Roschen representative for additional details, and ordering assistance.


Reverse Circulation Hammer Drilling Application


High Strength 4 Inch RE545 Reverse Circulation Hammer Drilling Reverse Circulation Drill Rod 0

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