RSBM Hydraulic Breaker Chisels Choice Guide

There are many different types of chisels for hydraulic breakers, like Wedge, Blunt, Moil, and Cone... do you really know how to choose the right one?

 
1) Introduction of Chisel
Chisel is a metal tool with a sharpened edge at one end, used to chip, carve or cut the solid material.
Chiseling involves forcing the sharp edge into some material to cut it.
In Rock Breaker, we use a chisel to break the rock.
Hydraulic Breaker Chisel is Hardened material
2) Different Types of Chisels
 Conical and Moil Type:
Blunt chisel has an excellent energy transmission. Demolition due to impact breaking. Primary breaking in lightly Cracked rock or secondary breaking to break the oversize rock.

 Wedge Type:
The wedge chisel has good penetration and an excellent wedge effect. General demolition through cutting action. Primary breaking in heavily Cracked rock.

Blunt Type:
Conical and Moil chisel has excellent penetration and a good wedge effect. Primary breaking in lightly Cracked or monolithic rock.

 

 

 

3) Selection of Chisel as per the application

Material	Use	Specifications	Type
Concrete	Walls Blocks Columns support	Reinforced	Wedge
		Non-reinforced	Moil
Sedimentary rock (Limestone, sandstone, graywacke)	Trenching, foundation work, Primary quarry breaking	Heavily fissured	Wedge
		Lightly fissured	Moil
		Monolithic	Moil
Crystalline(Magma, greenstone, gabbro, granite)	Trenching, foundation work, Primary quarry breaking	Heavily fissured	Wedge
		Lightly fissured	Blunt
		Monolithic	Blunt
	Breaking over sizes	/	Blunt
Asphalt	Road surfaces, transport routes	Soft structures	Wedge
Soil	Frozen ground	/	Wedge

 

4) Guidelines for using Chisel

We can provide you with various models of hydraulic breakers as well as chisel selection advice and installation instructions. If you have any questions, please feel free to contact RSBM.