Rocka Heavy-Duty Hydraulic Rock Breaker Hammer

Specializing in high-quality attachments like the ROCKA hydraulic breaker, quick hitch coupler, vibratory plate compactor, ripper, and hydraulic post drivers, Rocka offers products engineered for durability and performance.

Commodity name： Rocka Heavy-Duty Hydraulic Rock Breaker Hammer

Category:

Silence Type Hydraulic Breaker

E-mail:

info@rockageattachments.com

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Product Description

Rocka SK81 SK121 Series Heavy-Duty Breaker (for Noise-Controlled Sites)

The SK81S and SK121S series represent our advanced line of high-current, low-noise molded case circuit breakers, engineered for the demanding requirements of modern main power distribution, transformer protection, and large-capacity motor control. These “Silency Breakers” feature an optimized arc-extinguishing system and mechanical design that significantly reduces operational noise, making them ideal for installations where minimal acoustic disturbance is valued, such as data centers, hospitals, commercial complexes, and industrial plants.

Our silent series minimizes operational sound without compromising power, ensuring compliance and community comfort.

Specification	Unit	SK81	SK100	SK121	SK131	SK141	SK151
Suitable Excavator	ton	18~26	25~30	28~35	30~45	35~45	40~55
Operating Weight	kg	1978	2279	2896	3117	3399	4390
Impact Energy Class	ft/lbs	5000	6000	7500	8500	10000	12000
Impact Rate	bpm	350~500	300~450	300~450	250~400	250~350	250~350
Required Oil Flow	gal/min	31.7~47.6	39.6~55.5	47.6~63.4	50.8~68.7	50.8~68.7	55.5~76.7
Setting Pressure	bar	210	210	210	210	210	210
Setting Pressure	psi	2987	2987	2987	2987	2987	2987
Operating Pressure	bar	160~180	160~180	160~180	160~180	160~180	160~180
Operating Pressure	psi	2276~2560	2276~2560	2276~2560	2276~2560	2276~2560	2276~2560
Hose Diameter	in.	1	1	1¼	1¼	1¼	1¼
Tool(Chisel) Diameter	in.	5.5	5.9	6.1	6.5	6.5	7.0
Tool(Chisel) Diameter	mm	140	150	155	165	165	165

* Every hydraulic breaker with 1 set gas-charging kit with nitrogen bottle, 2 pcs hydraulic hose, 1 set tools with toolbox, 2 piece chisel

* From SK20~ SK43 model warranty for 2 years, without wear and tear parts.

* From SK45~ SK151 mode warranty for 1 year ,without wear and tear parts.

Yantai Rocka Machinery Co., Ltd. is a seasoned export-oriented factory with a strong international presence, consistently supplying high-quality products to markets across the globe. Our equipment is widely used in the United States, Australia, Mexico, and numerous other countries, earning a reputation for reliability and performance in demanding conditions.

Among our most popular products with overseas clients are:

Silence Hydraulic Breaker/Hammer – Engineered for reduced noise output without compromising power, ideal for urban construction and noise-sensitive environments.
Hydraulic Pile/Post Driver – Designed for efficient and stable pile driving in foundation work, fencing, and landscaping projects.
A Range of Accessories to support and enhance the performance of our core equipment, including:
- Breaker chisels in various specifications (flat, pointed, moil, etc.)
- Hammer power cells (seal kits, diaphragm kits, accumulator parts
- Post driver cup chisels and adapters for different pile types

We pride ourselves on providing durable, compatible, and cost-effective solutions tailored to the needs of contractors, rental companies, and distributors worldwide. Whether for demolition, construction, or infrastructure projects, Yantai Rocka delivers tools that build trust—and results—across borders.

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