There are three hammer type Top, Side and Box-Silenced ande fifteen variants for each type, ranging from light duty, medium duty to heavy duty, wich applicable for construction/ earth moving machinery like excavator, skid steer loader & Backhoe Loader of all brand in the world, used in fields of demolition, aggregate stone, construction and minning. 1.Top Type hydraulic hammer, Rock hammer of EDT Series. Compare other brand breakers, EDT professional hydraulic hammer (Rock hammer) will be of the more powerful strike because of the application of strick machining requirement to import slide parts, lesser tolerance and fewer potential oil leakage. Applicable for excavator bucket 2. Side Type hydraulic breaker, Rock breaker of EDT Series EDT hydraulic breaker (Rock breaker) adopt advanced oil loop structure that make it possible to need lesser oil, easy to adjust and higher working efficiency, whole machine was applied with optimum design, simplifier structure with few parts, few parts means few problem and easy maintainence. Applicable for excavator bucket 3. Box-Silenced Type Hydraulic Breaker of EDTSeries EDT Box-Silenced Type Hydraulic Breaker adopt advanced oil loop structure that make it possible to need lesser oil, easy to adjust and higher working efficiency, whole machine was applied with optimum design, simplifier structure with few parts, few parts means few problem and easy maintainence. Suitable Carrier bucket 4. Silence Type Hydraulic Breaker A. EDT-400 Applicable excavator for Volume: 0.15-0.3 M3 and weight: 4-7 tons B. EDT- 800 Applicable excavator for Volume: 0.4-0.6 M3 and weight: 10-15 tons C. EDT-2000 Applicable excavator for Volume: 0.6-0.8 M3 and weight: 18-26 tons D. EDT-3000 Applicable excavator for Volume: 0.9-1.2 M3 and weight: 27-35 tons E. EDT3500 Applicable excavator for Volume: 1.2-1.7 M3 and weight: 30-45 tons F. EDT4500 Applicable excavator for Volume: 1.4-2.0 M3 and weight: 40-55 tons. hydraulic hammers