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Certification:ISO,CE

API REG Thread Reverse Circulation Drilling Tools for 90 - 455 mm Hole Range

4\'\' 4inch Reverse Circulation (RC) Hammer with 115mm RC bits and RC rod for mining Exploration

Introduction

HRC series reverse circulation DTH Hammer is the latest developed products of our company. It is mainly used for deep exploration drilling and stope ore grade control.

It has the following characteristics:

1. Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and continuous sampling.

2.The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.

3. The collection tube adopts an integrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.

4. Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer can drill holes of different sizes ensuring that the sample is not contaminated.

5. In different conditions such as loose soil, hard rock and plenty of water exists, sampling can be done well.

Reverse Circulation (RC) Hammers

Specification

Model	Lengt (Less bit)	Weight (Less bit)	External Diameter	Bit Shank	Hole Range	Working Pressure	Air Consumption
HRC45	1020mm	94.0kg	99mm	HRC45	114-127mm	1.0-3.0Mpa	1.0-2.4Mpa	8-16m3/min
HRC55	1111mm	66.5kg	126mm	HRC55	133-152mm	1.5-3.5Mpa	1.7-3.0Mpa	16-28m3/min
HRC65	1250mm	110.0kg	146mm	HRC65	155-190mm	1.5-3.5Mpa	1.7-3.0Mpa	20-35m3/min
HRC52	1208mm	70.0kg	126mm	HRC52	133-146mm	1.5-3.5Mpa	1.7-3.0Mpa	16-28m3/min

Reverse Circulation Drill Bits

Bit Shank	Bit Diameter.(mm)
HRC	115,140,165mm
MIC	133,140,146mm
PR5	133,140,146mm
PR4	115,127,133mm

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