Halco Rock Tools, UK Manufacturer of DTH Hammers and Bits. Halco pioneered the development and distribution of DTH hammers in the 1950s.
The Halco RC500 has been designed to give maximum performance in Exploration and Grade control applications.
 
The integral adaptor housing allows easy access to the long lasting sample tubes. Enhanced performance stems from a simple robust design that reduces complicated maintenance procedures, which result in more downtime.
 
The RC500 features improved flushing characteristics from high velocity air flow directed through the drill bit. 
 
The RC 500 is offered with either Remet or Metzke threads on the sub adaptor body and an integral Drill Bit Catcher System for added peace of mind.
Top loading filter to prevent debris entering the hammer.
N.R.V (Non-Return-Valve) to prevent hammer from flooding.
Easy sample tube removal.
Piston and liner configuration for optimal airflow.
8 spline bit shank gives large drive area and reduces contact stresses.
Air Consumption
 
Suitable for operation at air pressures of 200 - 600 PSI (14 - 41 bar).
 
Drilling diameters of 137 - 189mm (5 3/8 - 7 1/2").
Bit Catcher to prevent loss of bit head if failure occurs and seals the hole for sample recovery.
Tech Specs
Wear Limits
Overview
Hammer Type
Part Number
Shank
Top Thread
Hammer Flat Size
Weight
Outside Diameter
Make Up Length
Recommended Maximum Thrust
RC500
600409
Halco
Remet 4 1/2"
125mm (4.921") 
75Kg
132mm (5.197")
1382mm (54.409")
2000Kg (4400 lbs)
600410
Halco
Metzke 4 1/2"
125mm (4.921") 
75Kg
132mm (5.197")
1382mm (54.409")
2000Kg (4400 lbs)
Drill Bit Overview
Halco RC500
Diameter
Face
Buttons
Oversize
Weight
(Kg)
27.4
27.6
27.8
28.0
40.0
Part
Number
653554
653555
653556
653557
653487
Inch
5 3/8
5 1/2
5 5/8
5 3/4
7 1/2
mm
137
140
143
146
189
Design
Drop Centre
Drop Centre
Drop Centre
Drop Centre
Drop Centre
Type
Dome
Dome
Dome
Dome
Dome
Qty & Dia
12 x 16mm / 4 x 13mm
12 x 16mm / 4 x 13mm
12 x 16mm / 4 x 13mm
12 x 16mm / 4 x 13mm
16 x 16mm / 10 x 13mm
Additional bit configurations are available on request.
Halco RC500 - Shroud
Outside Diameter
Part
Number
604624
604625
604626
604627
Inch
4.92" 
5.04"
5.16"
5.28"
mm
135
138
141
144