What is the purpose of a hydraulic hammer?

In construction and demolition, hydraulic hammers and breakers are essential. They can break rock, dig holes, or break up earth to facilitate drilling. You’ll find them on skid steers, small excavators, loader backhoes, and large excavators.

Hydraulic hammers drill blasting holes for quarries, drive piles for building foundations or fences, and embed steel rods deep into the ground. They also demolish old structures, roads, and vehicles. The hammer’s power depends on the compression chamber size and the pressure applied to the fluid inside it.

How Does a Hydraulic Hammer Work?

French mathematician and inventor Blaise Pascal discovered Pascal’s Law, which led to the development of the hydraulic hammer. This law states that pressure applied to one area of enclosed liquid results in equal pressure at all other points.

When high pressure enters, it affects the piston, changing the flow direction. The chamber and low-pressure circuit then reverse the piston’s action. The lower side now experiences more force, causing the piston to rise and compress the gas in the chamber.

The valve lifts as oil flows into the chamber, allowing high pressure to enter for piston reversion. The piston then descends, with the gas chamber pressure increasing the speed. The piston strikes the chisel, and oil entering the chamber changes to low pressure when the piston reaches it, reducing the pressure supporting the valve. The valve then lowers, repeating the chisel striking process.

The Types Of Hydraulic Hammers

There are three classes of hydraulic hammers: Small, Medium, and Large.

Small Class

Ideal for indoor remodeling, small-class hammers break concrete for minor patch jobs, dig fence posts, and move quickly while using less PSI. They are swift and efficient for appropriate tasks.

Medium Class

The most common hydraulic hammers are medium-class, with PSI ranging from 2,000 to 3,000. They impact many projects significantly and can frequently touch the ground. These hammers handle utility projects, large concrete tasks, and landscaping stones.

Large Class

Large-class hydraulic hammers are for complex tasks like mining or excavation. Without experience or guidance, operating a large-class hammer is not advisable. With over 2,300 PSI, they descend with great force but less frequently per minute than smaller classes due to the immense power.

How Can A&D Assist?

If you need pneumatic valves like air rams, air treatments, filter regulators, diverter blocks, lubricators, and regulators, contact A&D. We offer industrial machines for sale to both individuals and large organizations.

Scroll to Top
Scroll to Top