- Box-Type (Silent) Hydraulic Breakers
- Side-Type (Open-Frame) Hydraulic Breakers
- Top-Type (Vertical) Hydraulic Breakers
- Key Differences: Structure, Noise/Vibration, and Mounting
- Ideal Applications (summary):
- Selecting the Right RSBM Breaker for Your Project
- RSBM Quality and Manufacturing Excellence
- Conclusion
Hydraulic breakers (hammers) are key excavator attachments for breaking rock, concrete and pavement. RSBM offers three main designs – Box-type (silenced), Side-type (open-frame), and Top-type (vertical) breakers – each optimized for different tasks and machines. Understanding their design, noise and vibration levels, mounting method, and ideal applications will help equipment dealers match the right breaker to a project. Below we compare RSBM’s box, side and top breakers in detail and suggest how to choose the best one for your excavator or worksite.
Box-Type (Silent) Hydraulic Breakers
RSBM’s box-type (silenced) breakers fully enclose the hammer body in a steel jacket with internal damping pads. This closed-box design protects the tool from debris and buffers vibrations into the carrier. The outer shell and rubber lining absorb noise and shock – RSBM explicitly notes its box breakers are “silence type and low-noise”. In practice, box-type breakers dramatically reduce operational noise and vibration, making them ideal for urban or noise-sensitive jobs. For example, during city road repairs or building renovations, a box hammer lets operators break concrete without disturbing nearby residents or offices.
Box-type breakers tend to be heavier and more expensive than open models due to the extra materials. However, the trade-offs are better tool protection and less stress on the excavator. By isolating the impact, box breakers cut back the vibration transmitted to the carrier, which extends both hammer and machine life. RSBM emphasizes that the fully-enclosed box is a “mainstream” global trend for these reasons, offering low noise, reduced carrier vibration, and superior hammer protection. In summary, choose a box-type RSBM breaker when noise or vibration is a concern – e.g. urban demolition, tunnel lining works near structures, or anytime noise regulations are strict. The robust shell also means fewer maintenance issues with loose bolts or exposed components.
Side-Type (Open-Frame) Hydraulic Breakers
The side-type (open-frame) breakers are RSBM’s most economical design. Here the mounting bracket and pins sit on the side of the tool, and only the hammer’s sides are protected by two thick steel plates. The front and rear are open to the environment, so these breakers are lighter and simpler to build. RSBM notes that side-type breakers are generally “cost-effective” in manufacture. This open construction makes maintenance easier (no outer shell to remove) and helps dissipate heat. However, it also means more noise and vibration reach the operator than with a box-type design. In fact, RSBM warns side (and top) breakers are “noisier than the box-type of the same ton level”, and their side plates can loosen or break if not well maintained.
The side-mount offers practical advantages on the job. By fitting to the side of an excavator arm, the breaker sits lower on the machine. RSBM points out that this lower installation point allows higher lifting by the excavator. In other words, the boom can reach up and over obstacles more easily when the heavy breaker is attached lower. The company also highlights that side breakers are “with better flexibility for accomplishing different projects”. External sources agree: many builders use side-mounted breakers for general demolition because the tool can be lifted higher to break upper sections of walls or buildings. Practically, side-type breakers excel in demolition sites, road cutting, secondary rock breaking, and other jobs where maneuverability and reach are key.
Key advantages of side-type breakers: They offer a compact profile and lower center of gravity (since the weight hangs beside the arm), which improves balance during angled or horizontal breaking. They tend to be cheaper to buy and easier to service because the housing doesn’t have to be removed for access. Operators also report excellent visibility and control with side breakers, since nothing obstructs the view of the tool tip. According to RSBM and industry comparisons, side-type units strike a balance of power, control and cost – a “workhorse” design suitable for general demolition and quarry work.
Drawbacks: The open design means the carrier feels more noise and shock. Compared to box-type breakers, side models transmit higher vibration to the excavator and produce louder impacts. Dealers should warn customers that while side breakers are rugged, they are not ideal for noise-sensitive sites. In RSBM’s words, the side-type design “does not protect the front and back” of the hammer, and requires more diligence to keep the steel plates tight.
Typical applications: RSBM lists side-type breakers as suited for mining (secondary rock breaking), metallurgy (slag and furnace demolition), road and foundation work, railway tunneling, general building demolition, and ship hull cleaning. In short, use an RSBM side-mounted breaker for medium-duty to heavy-duty breaking tasks where flexibility and reach matter more than ultra-low noise. For example, clearing old concrete walls, cutting through pavement, or breaking medium-sized boulders – especially in open-air or industrial settings – is ideal for a side-type hammer.
Top-Type (Vertical) Hydraulic Breakers
RSBM’s top-type breakers are designed with the mounting bracket on top of the unit (hence “top-mounted”). The breaker stands more vertical when attached, so its piston strikes straight down into the material. This vertical arrangement gives the top-type a direct downward impact advantage – particularly useful when pulverizing large rocks or hard stone. RSBM notes that the top breaker “reaches rock or concrete vertically which helps breaking quarry materials”. In practice this means top-type breakers can deliver powerful blows deep into rock piles or along trench walls.
Another benefit of the top mount is wider working space. Without side plates, a top breaker allows more room around the attachment, giving the operator better visibility and maneuvering. External comparisons emphasize that top-mounted breakers offer a wider field of view and working area than side-mount units. The operator can see precisely where the tool tip is striking, which is crucial in precision work (e.g. delicate quarrying or rubble sorting). In mining and excavation contexts, RSBM and others point out top-type breakers are often chosen for breaking stones in quarries or demolition of rigid structures where heavy downward force is needed.
Key points for top-type breakers: Because the mounting point is on top, these breakers tend to be longer overall than side-types, giving them extra reach. They are very effective at vertical breaking tasks, like snapping large rocks off a face or digging into concrete foundations. However, like side-type units, they are still open-frame (aside from side plates), so they do not dampen noise like a box-type does. The noise and vibration are generally higher than a box-type, similar to side units. Dealers should note that maintenance access is moderate – easier than fully enclosed models but not as open as side-type (since the top bracket can make some areas tight).
Typical applications: Top-type breakers shine in heavy-duty mining, quarrying, and large demolition jobs. Use them for breaking up stone blocks, asphalt under bridges, deep trench footing removal, or anywhere a long downward reach is beneficial. For example, RSBM markets top-type breakers for sand/pit work and concrete demolition in construction foundations. They are excellent for open-pit quarry tasks or deep excavations, where the carrier can leverage the extra reach and vertical power. If a customer needs to break very thick concrete or rock and has a sufficiently large excavator, a top-type breaker is often the best match.
Key Differences: Structure, Noise/Vibration, and Mounting

To summarize and compare the three RSBM breaker styles, consider these points:
- Mounting & Structure:
- Box-Type – Fully enclosed in a sound-dampened shell. Mounting can vary by design but many box breakers use a side-mount bracket inside the shell.
- Side-Type – Mounts on the side of the hammer’s body with two large cross-bolts; core is open from front and back.
- Top-Type – Mounts on top of the hammer’s rear head. The body is similar to side-type (open sides) but the pin is above the centerline.
- Noise and Vibration:
- Box-Type – Lowest noise/vibration. The full housing and damping pads “significantly reduce operating noise” and cut vibrations to the carrier. Great for urban or sensitive work.
- Side-Type – Moderate noise/vibration. Some damping (pads on the steel plates) helps, but open areas let sound out. RSBM notes it is “noisier” than a box-type of the same tonnage.
- Top-Type – Higher noise/vibration. No full enclosure, so it produces even more noise than side-type. Suitable where noise control is less critical.
- Installation and Reach:
- Box-Type – Similar to side- or top-mount depending on model. Adds weight and bulk but not much extra reach.
- Side-Type – The breaker sits lower on the arm, allowing the boom to lift higher. This lower center of gravity also reduces stress on the arm.
- Top-Type – Taller profile. Longer reach below the arm, good for deep or vertical impacts, but adds length to the machine.
- Maintenance:
- Box-Type – Requires removing shell panels for access, so routine checks take more effort. However, the shell protects components from debris.
- Side-Type – Very easy access to tool, bushings and hosing since nothing blocks the sides.
- Top-Type – Moderate. The bracket on top may limit access in some spots but still much easier than a fully boxed design.
- Cost:
- Box-Type – Generally highest price (more steel, fabrication).
- Side-Type – Typically lowest price (simplest build).
- Top-Type – Mid-range cost.
Ideal Applications (summary):
- Box-Type: Noise-sensitive work (urban demo, indoors, hospitals, schools), any job needing minimal vibration.
- Side-Type: General demolition (walls, concrete slabs, roads), roadwork, small quarries, secondary rock breaking, where versatility and cost matter.
- Top-Type: Heavy quarry/mining, foundation digging, trenching, and where extra downward reach is needed (e.g. deep rubble piles).
Selecting the Right RSBM Breaker for Your Project
When choosing a breaker, match the design and size to the excavator class and task. RSBM breakers cover machines roughly 5–100 tons (some models can be made even smaller or larger on request). In practice: small mini-excavators (5–10t) typically use compact side- or top-mount hammers. Medium excavators (10–40t) can use any of the three types based on job needs. Very large excavators (50–100t+) pair with heavy-duty top- or box-type breakers for maximum power.
Always match the hammer weight to the carrier’s capacity. RSBM recommends calculating the acceptable hammer range from the excavator’s bucket capacity and weight to avoid tipping or overloading. In general, choose a breaker with rated weight about 60–80% of the excavator’s standard bucket load. Using too heavy a hammer on a small excavator will reduce performance and cause undue wear. Conversely, a very lightweight breaker on a large machine underutilizes the carrier. RSBM’s guidelines and formulas help dealers advises customers on the ideal hammer range for their machines.
RSBM also emphasizes customization. Dealers should note that RSBM offers OEM/ODM services to tailor breakers (mounting brackets, hoses, colors, etc.) to almost any excavator brand and model. This means if a client has special project needs or a rare machine, RSBM can often adjust a design accordingly. Whether it’s custom mounting pins, quick-change couplers, or even special tool steels, RSBM’s flexible manufacturing ensures the breaker will fit the application.
RSBM Quality and Manufacturing Excellence
Choosing RSBM breakers also means relying on solid engineering and quality materials. RSBM uses high-strength steels (like Q345B, NM400 and Hardox) in their breaker bodies and tools, and fabricates under “strict corporate standards” tighter than national norms. Their plants have complete equipment and advanced technology to produce durable breakers. RSBM specifically highlights that their products are cost-effective yet built to meet customer needs. They even produce their own drill rods and wear parts, reducing dependence on imports and ensuring tool quality.
Moreover, RSBM supports dealers with full after-sales and warranty (typically 6 months standard) and OEM branding options. Dealers can reassure customers that an RSBM breaker comes from a manufacturer committed to innovation and service. Case studies and certifications on RSBM’s site further demonstrate their focus on reliability. In short, RSBM’s manufacturing excellence and flexibility make it easy to find a breaker that not only fits the excavator, but also endures tough conditions.
Conclusion
In summary, the choice among RSBM’s box, side, and top-type breakers depends on the job:
- Use a box-type (silenced) breaker for city or sensitive projects where low noise and low vibration are crucial. Its enclosed shell protects the hammer and keeps surroundings quiet.
- Choose a side-type breaker for general demolition, road or infrastructure work where budget and flexibility are key. Its lower mounting position allows higher reach and easier access, though it is louder.
- Opt for a top-type breaker when working in quarries, deep trenches, or heavy concrete where a vertical strike and wider coverage are needed. It delivers powerful downward blows ideal for rock-breaking.
By matching these characteristics to the excavator size and project needs – and leveraging RSBM’s OEM customization – dealers can confidently recommend the perfect RSBM hammer. Each breaker type is built with RSBM’s high standards and can be tailored through the company’s ODM program. This ensures that whichever type you choose, it will be a high-quality, reliable tool suited to the task.



