Tramac says its new V4500 heavy breaker was specifically engineered to provide a higher energy per blow. With an impact class of 13,000 foot pounds, the breaker fits carriers ranging from 99,200 to 176,400 pounds and has an operating weight of 9,921 pounds. The tool is 7.5 inches in diameter and 29.7 inches long. Other features include blank-firing protection to prevent metal-on-metal contact, a pressure regulator valve to prevent overpressure and accidental overflow, reinforced suspension to absorb vibration, an automatic pressure regulator to ensure constant operation despite variation in flow or temperature, an automatic frequency adaptation system, an energy recovery feature that captures rebound energy for the next blow, and an automatic greasing system.