Rocka SK40S Silent Breaker – Quiet Power for Tight Job Sites
Designed for excavators in the 4–7-ton class, the SK40S delivers consistent breaking force where it matters most—whether you’re working on urban demolition projects or extracting rock in mining applications. Thanks to Rocka’s proprietary silence technology, noise output is reduced by 45dB compared to standard breakers, allowing crews to work longer in residential or commercial zones without noise-related restrictions.
Durability is built into every component. The breaker features a heavy-duty steel casing and a service-friendly architecture, making routine maintenance straightforward and minimizing equipment downtime. Certified to CE standards and protected by a 3-year warranty, the SK40S offers both regulatory compliance and long-term reliability.
Wide compatibility ensures a hassle-free fit with leading excavator brands. From foundation removal and road repairs to trenching and site preparation, the SK40S combines low-noise operation, dependable construction, and easy serviceability—giving operators the confidence to take on demanding jobs with fewer disruptions.

We are a China-based manufacturer specializing in the design, production, and global supply of high-performance hydraulic attachments. With a strong focus on customization, we offer comprehensive OEM and ODM services to meet the specific requirements of equipment dealers, rental companies, and original equipment manufacturers.
Product Portfolio
Backed by years of export experience, our products have been successfully deployed in over ten countries, including key markets such as the United States, Australia, Canada, and Mexico. We pride ourselves on reliable quality, consistent delivery, and responsive after-sales support.
As we continue to expand our global footprint, we are actively seeking long-term distribution partners, equipment dealers, and project suppliers worldwide. Whether you’re looking for standard products or fully customized solutions, we are ready to support your business with competitive factory-direct pricing and engineering expertise.
Let’s build something lasting — together.
