When we consider heavy machinery, understanding the Hydraulic Breaker Technical Specifications is paramount. A hydraulic breaker, also known as a hydraulic hammer, is an essential attachment for excavators, used to break hard materials such as rock and concrete. Correctly interpreting its technical data ensures we select the right tool for the job, maximize efficiency, and extend equipment lifespan.
The Importance of Hydraulic Breaker Specifications
We define a hydraulic breaker as a powerful tool that uses hydraulic pressure from a carrier to generate rapid, high-force impacts. This process breaks down materials in construction, demolition, and mining. For anyone involved in these operations, a deep understanding of the technical specifications is critical. It directly influences operational safety, productivity, and the overall cost-effectiveness of a project. Without this knowledge, we risk suboptimal performance, increased wear on equipment, and potential project delays.
Key Technical Parameters of Hydraulic Breakers
To make informed decisions, we must examine several key technical parameters. Each specification plays a vital role in the breaker’s performance and suitability for different tasks.
Breaker Operating Weight and Carrier Compatibility
The Breaker Operating Weight refers to the total weight of the hydraulic breaker, including the working tool and mounting bracket. This parameter is crucial for matching the breaker with the appropriate carrier, typically an excavator. An improperly matched breaker can lead to instability, reduced breaking force, or excessive stress on the excavator’s boom and hydraulic system. We always recommend consulting the manufacturer’s guidelines for the applicable excavator weight class to ensure proper balance and operation.
Oil Flow and Operating Pressure
Oil Flow (measured in liters per minute, l/min) indicates the volume of hydraulic fluid the breaker requires from the carrier’s hydraulic system. The Operating Pressure (measured in bar or MPa) is the force per unit area of the hydraulic fluid. These two parameters directly determine the breaker’s power output and impact frequency. Insufficient oil flow or pressure will result in weak impacts, while excessive pressure can damage the breaker or the carrier’s hydraulic components. We ensure our BLT hydraulic breakers are designed to operate within specific ranges to deliver consistent, powerful performance.
Impact Rate and Energy
The Impact Rate (measured in BPM, Beats Per Minute) signifies how many times the piston strikes the working tool in one minute. A higher impact rate generally means faster material breakdown for softer materials, while a lower, more powerful impact rate is better for harder materials. The energy transferred with each impact is a function of both the piston’s mass and its velocity, which are controlled by the hydraulic system’s oil flow and pressure. Optimizing this balance is key to efficient breaking.
Working Tool Diameter and Type
The Working Tool Diameter (or chisel diameter) is a direct indicator of the breaker’s power class. Larger diameters typically correspond to more powerful breakers suitable for heavier applications. The type of working tool also matters significantly. For example, a MOIL POINT is ideal for general rock breaking due to its penetration, while a NARROW CHISEL works best for trenching or cutting. We offer a range of tools to suit diverse job requirements.
Accumulator and Nitrogen Pressure
The Accumulator is a critical component that stores hydraulic energy and absorbs pressure spikes, protecting the hydraulic system of both the breaker and the carrier. It contains compressed nitrogen gas. Maintaining the correct Accumulator Gas Pressure and Back Head Nitrogen Pressure is vital for optimal performance and longevity. Incorrect pressure can lead to reduced impact energy, increased vibration, or damage to internal components. Regular checks and proper charging with a Charging Regulator are part of routine maintenance.
Selecting the Right Hydraulic Breaker: A Practical Guide
Choosing the correct hydraulic breaker involves more than just looking at individual numbers. We consider the entire application. Factors like the hardness of the material, the scale of the project, and the available carrier equipment all influence the selection. For instance, a small hydraulic breaker like the BLT-40, suitable for 0.5-1.2t excavators, is perfect for light demolition or landscaping. In contrast, a BLT-155, designed for 27-33t excavators, is built for heavy-duty quarrying or large-scale demolition.
From Our Field Engineers:
We once had a client attempting to break granite with a breaker undersized for the task. The breaker was operating at its maximum, but progress was slow, and the carrier was under excessive strain. After we helped them switch to a BLT-100, which has a 100mm chisel diameter and is suitable for 10-14t excavators, their efficiency increased by over 40%, and equipment wear decreased significantly. This experience underscores the importance of matching the breaker’s power to the material’s resistance.
BLT Hydraulic Breaker Specifications Overview
We provide a range of BLT hydraulic breakers, each engineered for specific applications. Here’s a comparison of some of our popular models:
| Model | Breaker Operating Weight (kg) | Chisel Diameter (mm) | Oil Flow (l/min) | Operating Pressure (bar) | Impact Rate (BPM) | Applicable Excavator (t) |
|---|---|---|---|---|---|---|
| BLT-100 | 986 | 100 | 80~110 | 150~170 | 350~700 | 10–14 |
| BLT-125 | 1357 | 125 | 90~120 | 150~170 | 350~650 | 14~18 |
| BLT-155 | 2610 | 155 | 180~240 | 200~220 | 200~300 | 27~33 |
This table illustrates how key specifications scale with the size and power of the breaker. For instance, the BLT-155, designed for larger excavators, features a significantly higher operating weight, chisel diameter, oil flow, and operating pressure, enabling it to tackle more demanding tasks. Our BLT-155, with its 155mm chisel diameter, offers substantial breaking power for large-scale projects.

Maintaining Peak Performance: Beyond the Numbers
Beyond initial selection, consistent maintenance is crucial for sustaining the performance parameters of your hydraulic breaker. This includes regular lubrication with Chisel Paste, checking Tool Pin and Bushing Pin wear, and ensuring all Seal Kit components are intact. Proper maintenance prevents premature wear of internal parts like the Piston and Cylinder Body Assembly, ensuring the breaker operates at its designed Impact Rate and Operating Pressure.
Here are some key maintenance aspects:
- Lubrication: Apply grease to the working tool and bushings regularly to reduce friction and wear.
- Nitrogen Pressure Check: Verify the accumulator and back head nitrogen pressures according to manufacturer specifications.
- Seal Integrity: Inspect seals for leaks and replace them as needed to prevent hydraulic fluid contamination and pressure loss.
- Tool Inspection: Check the working tool for excessive wear or damage, replacing it before it affects performance or damages the breaker.
Expert Insight: The Future of Hydraulic Breaker Technology
We see a clear trend in hydraulic breaker technology towards even higher efficiency, increased durability, and greater adaptability to diverse and challenging environments. Manufacturers are focusing on optimizing the power-to-weight ratio and enhancing the energy recovery systems. For instance, our BLT-155 model, with its impressive 200-220 bar operating pressure and 180-240 l/min oil flow, represents a step in this direction. These high specifications allow for sustained, powerful impacts in demanding applications like large-scale quarrying or heavy demolition, where consistent performance is non-negotiable. We continue to invest in advanced materials and precision engineering to ensure our breakers not only meet but exceed the evolving demands of the industry, offering longer service intervals and reduced operational costs.
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FAQs about Hydraulic Breaker Technical Specifications
What is the most critical specification when buying a hydraulic breaker?
The most critical specification is the Applicable Excavator weight class, as it ensures proper matching with your carrier machine. This prevents damage to both the breaker and the excavator, ensuring safe and efficient operation. Once the carrier compatibility is established, we then look at Oil Flow and Operating Pressure to match the breaker’s power to your specific material breaking needs.
How does oil flow affect hydraulic breaker performance?
Oil Flow directly influences the Impact Rate and overall power of the hydraulic breaker. If the oil flow from the excavator is too low, the breaker will deliver weaker, slower impacts, reducing efficiency. If it’s too high, it can cause overheating and premature wear. We design our breakers to operate within specific oil flow ranges for optimal performance and longevity.
Can I use any working tool with my hydraulic breaker?
No, you cannot use just any working tool. The Working Tool Diameter must match the breaker’s design, and the tool type should be chosen based on the material you are breaking. Using an incorrect tool can lead to inefficient breaking, damage to the tool, or even damage to the breaker’s internal components like the Front Cylinder and Bushings. Always refer to the manufacturer’s recommendations.
What happens if the accumulator nitrogen pressure is incorrect?
Incorrect Accumulator Gas Pressure can significantly impair breaker performance. If the pressure is too low, the accumulator cannot effectively store energy or absorb pressure spikes, leading to reduced impact force and increased stress on the hydraulic system. If the pressure is too high, it can also reduce impact efficiency and potentially damage the accumulator’s diaphragm. Regular maintenance includes checking and adjusting this pressure.
How often should I check the technical specifications of my hydraulic breaker?
While the core technical specifications remain constant, we recommend reviewing them whenever you change application types, acquire a new carrier, or experience performance issues. For critical parameters like Accumulator Gas Pressure and Back Head Nitrogen Pressure, we advise checking them as part of your routine maintenance schedule, typically every 50 to 100 operating hours, or as specified in your operator’s manual. This proactive approach helps maintain optimal performance and prevents unexpected downtime.




