At the pinnacle of innovation and power, Sintash introduces the STM ST81 Hydraulic Hammer as the ultimate solution for colossal projects and demolition operations requiring maximum impact intensity and uninterrupted durability. This model, positioned in the highest tier of STM’s ultra-heavy-duty hydraulic hammers, is designed to overcome the most challenging natural obstacles and man-made structures by leveraging the latest advancements in material engineering and hydraulics. The ST81 is an unequivocal choice for leading contractors involved in strategic projects that demand the highest level of technology and efficiency.

Exclusive Features and Strengths of the STM ST81 Hydraulic Hammer:

• Exceptionally High Impact Energy with Optimized Transmission System: Equipped with a completely redesigned hydraulic power unit and a piston with optimized mass and stroke, it produces exceptional impact energy, even beyond previous models, and transfers it to the chisel with minimal loss. This means unparalleled breaking speed in the toughest materials.
• Monoblock Body or Ultra-Reinforced Design for Maximum Strength: The body structure, using special steel alloys and advanced robotic welding and machining processes, is designed to offer the highest level of resistance against torsional, bending, and continuous impact stresses, bringing the probability of cracks or fractures close to zero.
• Intelligent Power & Frequency Adaptation System: Features advanced sensors and an Electronic Control Unit (ECU) that automatically adjusts the power and frequency of impacts based on the hardness and resistance of the material being demolished. This enhances productivity, reduces energy consumption, and prevents damage to the hammer in varying working conditions.
• State-of-the-Art Vibration & Noise Dampening Technology: Utilizing multiple layers of advanced polymer buffers and an internal suspension system, it significantly reduces harmful vibrations and noise, leading to a tremendous increase in operator comfort, reduced fatigue, and protection of the excavator’s structure.
• Integrated High-Capacity Automatic Lubrication System with Monitoring Capability: Equipped with a central automatic greasing system with a large reservoir and grease level warning sensors, ensuring smooth and uninterrupted hammer operation during long work shifts and extending maintenance intervals.

The STM ST81 Hydraulic Hammer is designed for the most massive and complex projects, including: excavation and demolition in very large and deep mines with ultra-hard rocks, strategic infrastructure projects such as the construction of long tunnels and large dams, demolition of very voluminous foundations and heavily reinforced concrete structures, as well as special projects like underwater demolition (with a special kit).

By offering the STM ST81 Hydraulic Hammer, Sintash Company demonstrates its commitment to providing the world’s most advanced technologies to Iranian industries. This model is supplied with VIP technical support, the fastest possible supply of genuine spare parts, and specialized services by Sintash’s trained engineers. We are with you to ensure you benefit from the maximum potential of this demolition giant.

For expert consultation, additional technical information, a comprehensive catalog, and special sales conditions for the STM ST81 Hydraulic Hammer, please contact Sintash’s Major Projects Department. With the ST81, no obstacle will be insurmountable for you.