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Choosing the best hydraulic breaker for Komatsu excavators is not simply a matter of matching an attachment to an excavator model. Komatsu PC200, PC210, PC220, PC300, and PC360 are widely used across construction, demolition, quarrying, roadwork, and infrastructure projects, but their operating weights, hydraulic flow rates, working pressures, and configurations are different.
For many Komatsu PC200, PC210, and PC220 applications, the 135–140 mm breaker class is a practical starting point. Larger machines such as the PC300 and PC360 generally require a heavier breaker class, but the final selection should always be confirmed using the excavator's actual hydraulic specifications.
The Komatsu PC200 is one of the most widely used excavators in the approximately 20-ton class. Contractors use it for construction, road building, foundation work, utility projects, quarrying, and concrete demolition.
Because of its versatility, the PC200 is also a popular carrier for hydraulic breakers.
However, not every 20-ton hydraulic breaker is automatically suitable for every PC200 configuration. Before selecting a breaker, buyers should check the machine's:
Operating weight
Auxiliary hydraulic flow
Working pressure
Return/back pressure
Mounting dimensions
Carrier stability
Application requirements
For many Komatsu PC200 applications, the BEILITE BLT-135 is a practical starting point.
The BLT-135 is designed for approximately the 18–22 ton excavator class and uses a 135 mm chisel. This provides a balance between impact performance, carrier compatibility, and operating efficiency.
BEILITE application information lists the BLT-135 for Komatsu PC200 and PC220 series excavators.
Typical applications include:
General construction
Concrete breaking
Road construction
Foundation work
Medium-duty demolition
Rock breaking
For contractors looking for a versatile hydraulic hammer for a Komatsu PC200, the BLT-135 can provide an effective balance without unnecessarily increasing attachment weight.
Recommended Reading: Hydraulic Hammer for 0.5–2T Excavators: OEM Manufacturer Guide for Global Buyers
The BEILITE BLT-140 can be considered when the working conditions require greater heavy-duty capability and the excavator's hydraulic system can support the breaker.
The BLT-140 is designed for approximately the 20–24 ton excavator class, with a 140 mm chisel. Its typical working flow is approximately 120–180 L/min, with a working pressure of approximately 160–180 bar.
BLT-140 may be worth considering when:
The material is harder
Quarrying is involved
Heavy concrete structures need to be demolished
Higher breaking productivity is required
The breaker will operate for extended periods
The carrier has sufficient hydraulic capacity
A larger breaker should not be selected simply because it is larger. The hydraulic system and working conditions should justify the upgrade.
The Komatsu PC210 belongs to a similar excavator class to the PC200 and is widely used in demanding construction applications.
Common applications include:
Building construction
Road construction
Quarrying
Concrete demolition
Foundation work
Utility construction
Because the PC210 is often used as a multi-purpose machine, contractors typically need a hydraulic breaker that can handle a range of materials and applications.
Both the BLT-135 and BLT-140 can be evaluated for a Komatsu PC210, depending on the machine's actual hydraulic specifications.
The BLT-135 is a balanced choice for:
General construction
Concrete breaking
Medium-duty demolition
Roadwork
General rock breaking
Its 135 mm chisel provides a useful balance between impact capability and carrier compatibility.
The BLT-140 is more suitable when the project places greater emphasis on heavy-duty performance.
It can be considered for:
Harder rock
Quarrying
Heavy concrete
Large-scale demolition
Higher production requirements
For specific Komatsu configurations, the final selection should always be verified against the machine's actual hydraulic flow and working pressure.
Recommended Reading: The Ultimate Guide to Hydraulic Breaker for Hitachi Excavator
The Komatsu PC220 is firmly within the 20-ton-plus excavator class and is commonly used for heavier construction, quarrying, roadwork, and demolition.
As the carrier becomes larger, breaker weight and hydraulic capacity become increasingly important.
A breaker that is too light may fail to take advantage of the excavator's available hydraulic capacity. A breaker that is too heavy may negatively affect carrier stability, handling, and productivity.
The BLT-135 can be considered when versatility is the priority.
It is suitable for:
General construction
Concrete breaking
Medium-duty demolition
Roadwork
General rock breaking
BEILITE application information specifically lists Komatsu PC220-6, PC220-7, and PC220-8 among the excavator applications for the BLT-135.
The BLT-140 can be considered when the PC220 is working in more demanding conditions.
Typical applications include:
Quarrying
Hard rock breaking
Heavy demolition
Large concrete structures
Long-duration breaker operation
Again, the final decision should be based on the excavator's actual auxiliary hydraulic specifications.
Recommended Reading: Top 10 Hydraulic Breaker Hammer Manufacturers for Mining and Construction Projects
The Komatsu PC300 represents a significant step up from the PC200, PC210, and PC220 class.
A PC300-class excavator generally provides greater carrier capacity and is designed for more demanding applications.
Compared with a PC200-class machine, a PC300 typically offers:
Greater operating weight
Higher attachment capacity
Greater carrier stability
Higher potential hydraulic capacity
Higher potential production rates
For this reason, a 135–140 mm breaker may no longer be the optimal choice for heavy PC300 applications.
Instead, buyers should generally begin evaluating the 160–175 mm breaker class, subject to the excavator's actual hydraulic specifications.
The BLT-165 can be considered when contractors need a balance between:
Breaker weight
Impact performance
Hydraulic demand
Carrier stability
Operating cost
It may be suitable for general heavy construction, concrete breaking, roadwork, and moderate rock breaking.
The BLT-175 can be considered when the application requires greater impact capability.
Typical applications include:
Large concrete structures
Quarrying
Hard rock
Heavy demolition
Foundation demolition
Secondary rock breaking
However, the BLT-175 should not automatically be selected simply because the excavator is a PC300. The carrier's hydraulic flow, working pressure, mounting configuration, and required breaker weight must be checked first.
A properly matched hydraulic breaker can make a PC300 more versatile for:
Large-scale concrete demolition
Quarrying
Secondary rock breaking
Road construction
Foundation demolition
Infrastructure projects
For rental fleets and contractors, application frequency is particularly important. A breaker used occasionally for concrete demolition may require a different configuration from one operating continuously in a quarry.
The Komatsu PC360 is significantly larger than the PC200, PC210, and PC220.
It belongs to a heavier excavator class and is commonly used for:
Quarrying
Heavy rock excavation
Large infrastructure projects
Heavy demolition
Mining-related applications
Large-scale earthmoving
This is why a PC360 should not be matched with the same breaker simply because that breaker works on a PC200 or PC220.
Komatsu's H-Series matching information lists the PC360LC-10/11 with the JMHB360H hydraulic breaker, including an approximately 160 mm tool diameter and 2,571 kg breaker weight. This provides a useful reference for understanding the breaker class expected by a PC360-size carrier.
For BEILITE applications, buyers can begin evaluating the BLT-175 or BLT-185 class.
The final choice should be based on:
Excavator configuration
Hydraulic flow
Hydraulic pressure
Breaker operating weight
Material hardness
Required productivity
Working hours per day
For heavy quarrying or hard-rock applications, a larger breaker may provide higher production. For general demolition, however, installing an excessively large breaker does not necessarily improve total project economics.
| Excavator | Approx. Class | Starting Breaker Class | BEILITE Models to Evaluate | Typical Applications |
| PC200 | 18–22 t | 135–140 mm | BLT-135 / BLT-140 | Construction, concrete, demolition |
| PC210 | 20–22 t | 135–140 mm | BLT-135 / BLT-140 | Construction, roadwork, rock |
| PC220 | 20–24 t | 135–140 mm | BLT-135 / BLT-140 | Quarrying, concrete, demolition |
| PC300 | 30–35 t | 160–175 mm | BLT-160 / BLT-175 | Heavy demolition, quarrying |
| PC360 | 35–40 t | 175–185 mm | BLT-175 / BLT-185 | Heavy rock, quarrying, demolition |
These recommendations are starting points rather than universal fitment specifications.
Before ordering a hydraulic breaker attachment for a Komatsu excavator, buyers should provide the supplier with:
Exact excavator model
Excavator operating weight
Hydraulic oil flow
Hydraulic working pressure
Hydraulic return/back pressure
Auxiliary piping information
Required breaker weight
Working material
Expected operating hours
Required productivity
This information enables the manufacturer to recommend a breaker more accurately.
Breaker size is only one part of the selection process. The structural design of the hydraulic breaker also matters.
BEILITE offers different hydraulic breaker configurations for different working environments.
Sound-suppressed or silent hydraulic breakers are particularly useful when noise and vibration need to be controlled.
Typical applications include:
Urban construction
Residential areas
Municipal projects
Infrastructure renovation
Noise-sensitive demolition
BEILITE sound-suppressed breakers use MIC shock absorption technology to help reduce operating noise and vibration.
For contractors working near residential buildings or in urban environments, a silent hydraulic breaker can be a practical alternative to a conventional open housing design.
Top-mounted hydraulic breakers position the main breaker structure vertically and are particularly suitable for demanding applications.
Typical applications include:
Heavy-duty rock breaking
Quarrying
Vertical breaking
Heavy demolition
Continuous breaking operations
The design can provide strong vertical impact performance and is commonly considered for heavy-duty work.
Side-mounted hydraulic breakers use a different structural arrangement and can provide practical advantages for general construction work.
They can be considered when operators prioritize:
Easy maintenance
Good visibility
Flexible operation
Straightforward servicing
The best breaker structure depends on the application, not simply the excavator model.
Recommended Reading: Hydraulic Breaker Comparison: Sound Suppressed, Top Mounted, and Side Mounted Types
Selecting the correct chisel is another important part of hydraulic breaker performance.
The same hydraulic breaker can perform differently depending on the tool installed.
A moil point is commonly used when concentrated penetration is required.
It is suitable for:
Hard rock
Primary breaking
Concentrated impact applications
The pointed geometry focuses impact energy onto a relatively small area.
A narrow chisel provides concentrated impact while maintaining a useful cutting profile.
It can be used for:
Concrete breaking
Rock breaking
Precise demolition
General construction
A blunt tool provides a larger contact area and is commonly used for secondary breaking applications.
Typical applications include:
Oversized rock
Secondary rock breaking
Slag
Material reduction
A pyramid point can be useful for concrete and general demolition.
It can be considered for:
Concrete demolition
Building demolition
General breaking applications
The correct chisel should always be selected according to material characteristics, breaker design, and manufacturer recommendations.
Recommended Reading: How Often Should I Replace the Chisel (Tool ）of a Hydraulic Breaker?
For a hydraulic hammer for Komatsu excavators, two specifications deserve particular attention: hydraulic flow and hydraulic pressure.
Hydraulic flow determines how much oil the breaker receives, while hydraulic pressure determines the hydraulic force available to operate the breaker.
If the oil flow is too low, the breaker may operate too slowly or fail to achieve the expected impact rate.
If the flow is too high, excessive operating speed, heat generation, or component stress may occur if the hydraulic circuit is not correctly configured.
The same principle applies to pressure. The breaker should operate within the manufacturer's specified pressure range.
For example, BEILITE BLT-140 has a typical working flow range of approximately 120–180 L/min and a working pressure of approximately 160–180 bar. These specifications should be compared with the actual auxiliary hydraulic circuit of the Komatsu excavator before installation.
This is why buyers should never select a hydraulic breaker based only on excavator tonnage.
"My excavator is 20 tons, so I need a 20-ton breaker" is not a sufficient selection method.
No.
A larger hydraulic breaker generally has the potential to deliver greater impact energy, but that does not mean it will always produce better results.
An oversized breaker can create several problems:
Excessive attachment weight
Reduced carrier stability
Higher hydraulic demand
Increased operating cost
More difficult handling
Potentially unnecessary impact energy
An undersized breaker can also cause problems:
Lower productivity
Longer breaking cycles
Excessive operating time
Poor carrier utilization
Higher cost per unit of material removed
The objective is to find the optimal breaker, not the maximum-size attachment.
For example, a properly matched 135 mm breaker may be more economical for a PC200 breaking ordinary concrete than a substantially larger breaker.
By contrast, a PC360 operating continuously in hard rock may justify a much heavier breaker.
For contractors, distributors, rental companies, and OEM buyers, we recommend a six-step selection process.
Do not stop at "PC200."
Provide the complete model designation whenever possible, including the machine generation and configuration.
Operating weight determines whether the excavator can safely carry the breaker and maintain sufficient stability during operation.
These are critical for determining whether the breaker can operate within its specified range.
A breaker used for urban concrete demolition may require a different configuration from one used for quarrying or hard-rock breaking.
Use the excavator class, hydraulic specifications, and application to narrow down the breaker options.
Choose the tool according to the material, breaking method, and required result.
This approach provides a much more reliable selection than choosing a breaker solely from an excavator-to-breaker compatibility chart.
For international buyers, hydraulic breaker selection is not only about the initial purchase price.
Manufacturing capability, quality control, spare parts availability, technical support, and long-term durability can all influence the total cost of ownership.
BEILITE Machinery has specialized in hydraulic breakers since 2002 and manufactures hydraulic breakers covering a wide range of excavator classes.
Our product portfolio includes:
BLT Series hydraulic breakers
Sound-suppressed hydraulic breakers
Top-mounted hydraulic breakers
Side-mounted hydraulic breakers
Heavy-duty hydraulic breakers
Breakers for compact excavators and backhoe loaders
We use high-strength materials and controlled manufacturing processes to support breaker durability and consistent performance.
For distributors, rental companies, and OEM/ODM buyers, we can evaluate the excavator specifications, working conditions, target applications, and market requirements before recommending a suitable hydraulic breaker configuration.
For many PC200 applications, the 135–140 mm breaker class is a practical starting point. BEILITE BLT-135 and BLT-140 can be evaluated depending on hydraulic flow, working pressure, and application.
The BLT-135 is designed for approximately the 18–22 ton excavator class, and BEILITE lists Komatsu PC200 among its compatible applications. Final compatibility should be confirmed using the exact excavator's hydraulic specifications.
The BLT-135 and BLT-140 are both potential options for PC210-class excavators. BLT-135 is a balanced general-purpose option, while BLT-140 can be considered for heavier applications if the hydraulic system supports it.
Potentially, yes. The BLT-135, for example, can be considered for both machine classes in appropriate applications. However, hydraulic flow, pressure, mounting configuration, and application should always be checked.
For PC300-class excavators, buyers can generally begin evaluating the 160–175 mm breaker class. The final selection depends on hydraulic flow, pressure, breaker weight, and application.
The PC360 is a substantially heavier carrier. For BEILITE applications, the 175–185 mm breaker class can be evaluated, subject to the exact machine configuration and hydraulic specifications.
Potentially. A breaker such as the BLT-135 may be suitable for both excavator classes in appropriate configurations. However, the hydraulic circuit and mounting configuration should be confirmed before installation.
Check the Komatsu excavator's technical specifications or measure the auxiliary hydraulic circuit. The breaker supplier should also provide the required working flow and pressure for the proposed breaker.
No. The best breaker provides an appropriate balance between impact performance, hydraulic demand, carrier stability, productivity, and operating cost.
For hard rock and primary breaking, a moil point is commonly used because it concentrates impact energy. However, the best tool depends on rock hardness, structure, breaking method, and the specific breaker.
When choosing a hydraulic breaker for Komatsu PC200, PC210, PC220, PC300, or PC360, the excavator model should be treated as the starting point—not the final answer.
For many Komatsu PC200, PC210, and PC220 applications, the 135–140 mm breaker class provides a practical starting point.
For larger PC300 machines, buyers should generally evaluate the 160–175 mm class, while PC360 applications may require a heavier 175–185 mm class, depending on hydraulic capacity and working conditions.
The most important selection factors are:
Excavator operating weight + hydraulic flow + hydraulic pressure + breaker weight + material hardness + application
The right hydraulic breaker is not simply the largest breaker you can install.
It is the breaker that matches your Komatsu excavator and delivers the productivity your job requires.
Not sure which hydraulic breaker is right for your Komatsu excavator?
Send us your PC200, PC210, PC220, PC300, or PC360 model, together with the machine's hydraulic flow, working pressure, and working conditions.
Our engineers can recommend the appropriate BEILITE hydraulic breaker and chisel configuration based on your machine and application.
Phone/ Whatsapp:+86 18357669906
Email:info@beilite.com