Hydraulic Hammer for John Deere Excavator: Complete Selection Guide for Contractors
2026-07-28
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Rammer hydraulic breakers are recognized worldwide as some of the most reliable and innovative hydraulic hammers in the construction, demolition, quarrying, and mining industries. With a history spanning more than five decades, Rammer has played a significant role in the evolution of hydraulic breaker technology and continues to be a leading brand under the Sandvik umbrella.
Whether you are operating a Rammer hydraulic hammer, searching for replacement parts, or considering a rebuild of an older breaker, understanding the history and engineering behind these machines can help maximize performance and reduce operating costs.
Rammer was founded in Finland during the 1970s and quickly became one of the pioneers of hydraulic breaker technology. The company introduced innovative hammer designs that improved breaking efficiency while reducing downtime and maintenance requirements.
Over the years, Rammer established a strong reputation across Europe, North America, Australia, and Asia for producing durable hydraulic breakers capable of handling demanding applications such as:
Today, Rammer operates as part of Sandvik Mining and Rock Solutions, one of the world’s largest manufacturers of mining and construction equipment.
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Many contractors and equipment owners are familiar with the names Allied, Rammer, and Sandvik. For decades, Rammer and Allied worked closely together, with certain breaker models marketed under the Allied-Rammer name.
As Sandvik expanded its global rock processing and mining equipment portfolio, Rammer became fully integrated into the Sandvik family. This relationship explains why older machines may carry Allied-Rammer branding while newer units are identified simply as Rammer or Sandvik Rammer breakers.
Because of this long history, many replacement parts and demolition tools remain interchangeable across certain Allied and Rammer models.
One of the unique characteristics of early Rammer hydraulic breakers was their fully hydraulic operating principle.
Unlike gas-assisted hydraulic breakers that rely heavily on nitrogen pressure to generate impact energy, Rammer’s fully hydraulic system uses hydraulic oil pressure to control piston movement throughout the striking cycle.
A Rammer hydraulic hammer typically consists of:
The hydraulic system lifts and accelerates the piston before impact, producing powerful and consistent blows against the working tool.
Fully hydraulic breaker technology offers several advantages:
Because hydraulic power controls the entire striking cycle, impact energy remains more stable throughout operation.
Although accumulators still contain nitrogen, overall breaker performance depends less on nitrogen pressure fluctuations than traditional gas-assisted designs.
Mining and quarry contractors often prefer fully hydraulic systems because they deliver reliable performance under continuous heavy loads.
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A common misconception is that fully hydraulic breakers do not use nitrogen. In reality, virtually all fully hydraulic breakers utilize a nitrogen-charged accumulator.
The accumulator serves several critical functions:
Most accumulators contain a rubber diaphragm that separates nitrogen gas from hydraulic oil.
Because diaphragms wear over time, regular inspection and replacement are essential for maintaining peak breaker performance.
One of the most recognizable features of Rammer breakers is their enclosed silenced housing.
Earlier hydraulic breakers commonly used side plate construction, which offered:
However, side plate breakers typically produced higher noise levels and transmitted more vibration to the carrier machine.
Rammer became well known for promoting fully enclosed silenced breaker housings.
Benefits include:
Today, silenced box designs are widely adopted throughout the hydraulic breaker industry.
Throughout its history, Rammer has introduced several successful breaker generations.
The E Series represented some of Rammer’s earliest hydraulic breaker designs and established the company’s reputation for reliability.
The S Series improved hydraulic efficiency and durability while maintaining the robust design principles of earlier models.
Designed for larger carriers and more demanding applications, the G Series delivered increased impact energy and structural strength.
The M Series introduced improvements in piston design, operating efficiency, and serviceability.
The HR Series became a popular choice for medium and large excavators working in quarry and demolition environments.
The BR Series remains one of the most widely recognized Rammer product lines worldwide.
Its reputation is built on:
Many BR Series breakers remain in operation decades after their original manufacture.
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As technology has advanced, Rammer has continued to develop intelligent breaker systems.
Ramdata allows operators and fleet managers to monitor:
This technology helps reduce downtime and improve fleet productivity.
Modern Rammer breakers can automatically optimize:
The result is improved productivity and lower operating costs.
To complement the premium Rammer product line, Sandvik introduced the Bretec hydraulic breaker brand.
Bretec breakers are designed for:
Together, Rammer and Bretec allow Sandvik to serve both premium and value-focused market segments.
Routine maintenance is essential for maximizing breaker life.
Operators should check:
Maintenance personnel should inspect:
Major rebuilds may include:
Proper rebuild procedures can significantly extend the life of a Rammer hydraulic hammer.
As many older Rammer and Allied-Rammer models remain in service, demand for replacement parts continues to grow.
Common replacement components include:
Using high-quality OEM or aftermarket parts can help maintain performance while reducing ownership costs.
For more than 50 years, Rammer hydraulic breakers have been setting industry standards for reliability, performance, and innovation. From the early E Series to today’s intelligent Rammer breakers equipped with advanced monitoring technology, the brand continues to play a leading role in demolition, mining, and construction applications worldwide.
Whether you are looking for Rammer breaker parts, hydraulic hammer repairs, rebuild services, or replacement demolition tools, understanding the history and engineering behind these machines is the first step toward maximizing productivity and minimizing downtime.
In addition to understanding leading global brands such as Rammer, it is also important to know the manufacturing source behind high-performance hydraulic breakers.
Founded in 2002, BEILITE Machinery Co., Ltd. is a professional OEM hydraulic breaker manufacturer in China, dedicated exclusively to the research, development, and production of high-quality hydraulic hammers and demolition attachments.
Unlike trading companies or multi-category equipment suppliers, BEILITE focuses only on hydraulic breakers and related attachments, making it one of the few manufacturers worldwide that specializes deeply in this product segment.
Guided by the philosophy “Quality Changes the Future”, BEILITE continuously invests in intelligent manufacturing systems and R&D innovation to improve breaker performance, durability, and energy efficiency. As a recognized Chinese National High-Tech Enterprise, the company has successfully overcome several key technical challenges in the hydraulic breaker industry.
BEILITE was among the first manufacturers in China to develop both a heavy-duty hydraulic breaker and an underwater hydraulic breaker, marking a major breakthrough in domestic breaker technology.
The BEILITE hydraulic breaker lineup (BLT40–BLT280) covers a wide range of applications, including:
These models are compatible with excavators ranging from 0.5 to 350 tons, making them suitable for:
BEILITE hydraulic breakers are designed with real-world jobsite conditions in mind. Key advantages include:
These advantages make BEILITE breakers a strong OEM alternative to many global hydraulic breaker brands.
BEILITE has obtained multiple international certifications and industry memberships, including:
With a global customer base of over 1,000 clients in more than 60 countries—including the United States, Germany, Australia, and others—BEILITE has established a strong international presence in the hydraulic breaker industry.
In 2025, the BLTB 280 hydraulic breaker was awarded the Tools and Attachments Innovation Award at the World Demolition Summit, further confirming its engineering excellence and innovation capability.
Contact us today to get OEM hydraulic breaker solutions, Rammer replacement parts, and factory-direct pricing from BEILITE Machinery.
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