
Hydraulic Breaker
The ME680 uses high-strength, hardened through-bolts designed to stabilize its 300KG structural frame. This special reinforcement prevents accidental cracking and maintains perfect internal alignment during high-intensity operation. By protecting the breaker body from extreme vibration, these bolts ensure long-term durability and reduce maintenance costs in challenging working environments.
The ME680 is equipped with a precision internal valve system that ensures precise reciprocating movement of the piston at optimal frequency. This design effectively manages hydraulic flow of 40-70 L/min, providing responsive control while preventing cylinder deformation. The simplified valve structure allows easier routine inspection and faster maintenance, maximizing machine uptime.
The ME680 features an advanced internal accumulator assembly that acts as a vital damper to absorb hydraulic peaks. By compensating for pressure fluctuations within the 110-140 KG/cm² circuit, it protects the excavator's hydraulic pump and seals from potential damage. This system ensures consistent impact force while extending the overall service life of the machine.
The ME680 uses a precision-machined piston that converts hydraulic energy into powerful kinetic impact force while minimizing power loss. With a stroke perfectly matched to the 68 mm chisel, the system delivers concentrated punching to effectively crush rock and concrete. This efficient design enables faster material penetration while optimizing the fuel consumption of the carrier excavator.
As the core power unit, the ME680 cylinder uses a mirror-polished inner bore to minimize friction and heat buildup during prolonged use. This precision-engineered cylinder ensures the piston operates with maximum accuracy in every movement. The robust housing further protects the cylinder from external debris, ensuring stable performance in continuous demolition tasks.
The heavy-duty front head of the ME680 is designed to provide ultimate support for the 68 mm chisel while absorbing strong recoil. This structure uses premium thrust rings and vibration-damping bushings to effectively isolate the main body from harmful feedback. This rugged construction significantly reduces wear on internal components, even during severe breaking cycles.
The ME680 comes standard with a premium 68mm diameter alloy steel chisel that has undergone a strict multi-stage heat treatment process. This ensures excellent surface hardness for breaking hard materials while maintaining a resilient core to prevent breakage. The tool is available in multiple tip styles to ensure consistent breaking performance across various industrial applications.
The ME680 hydraulic breaker is a professional-grade 300KG-class attachment designed specifically for medium excavators. It features a powerful 68 mm chisel and is optimized for operating flow of 40-70 L/min, achieving a perfect balance between massive impact energy and structural durability. It is a reliable, efficient solution for contractors who need heavy-duty tools to ensure maximum productivity and lower total cost of ownership.
This 300KG power unit is ideal for a variety of professional environments, including road construction, quarry secondary rock breaking, and reinforced concrete demolition. Its compact size and 68 mm chisel make it particularly effective for utility trenching, foundation excavation, and site clearance. Whether you are dealing with frozen ground or hard soil, the ME680 delivers the versatile power needed to meet modern construction challenges.

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