hydraulic hammer is a type of construction machinery that is mounted on excavators, backhoes, skid steers, mini-excavators, and stationary plants. Driven by hydraulic power it breaks rocks into smaller sizes or demolishes concrete structures into manageable pieces Hydraulic hammers are widely used in mining and landscaping applications. Although it can be both stationary and mobile, the hydraulic hammer is most commonly used as a mobile tool because it is more flexible. With simple but efficient working principle, the purpose of the hydraulic hammer is to apply force to a small piston and to create a mechanical advantage when the constant pressure is redirected through the pipes on a bigger area, producing high force. Today, there are many different types of rock hammers and they differ in terms of weight, size and usage. Every hydraulic hammer is designed to be used for a specific application.STB hammers are easy-to-use, attach, and are designed to last. We achieve productivity, reliability and cost-effectiveness by providing a resilient product avoiding downtime, low upkeep, affordable rebuild and maintenance cost and, due to simplicity in construction, far less hours of labor put into maintenance than others.