Hydraulic Breaker for 31–50 ton Excavator
Large excavators in the 31–50 ton class can run the SB81 at maximum efficiency, or specialized ultra-heavy breakers for the most demanding mining and quarry applications.
Overview
The 31–50 ton excavator class represents the upper end of the hydraulic breaker market. These large machines are primarily found in quarrying, mining, and major infrastructure projects where maximum productivity is the primary objective.
For this class, the SB81 remains the standard recommendation, but at the upper end of the range (40–50 ton), specialized ultra-heavy breakers with impact energies of 4000–6000 J may be considered for the most demanding applications.
The SB81 operates at maximum efficiency on 31–50 ton excavators — the larger machines provide more than sufficient hydraulic flow and pressure, and the greater machine weight provides better stability and ground reaction mass for the breaker.
For 40–50 ton excavators in high-production quarry or mining applications, it is worth consulting with breaker manufacturers about specialized heavy-duty models that may offer higher productivity than the SB81.
Recommended Models
Hydraulic Requirements
| Excavator Class | 31–50 ton |
| Oil Flow Required | 150–250 L/min |
| Working Pressure | 160–210 bar |
| Recommended Models | SB81 |
Common Compatible Excavators
* Always verify hydraulic flow and pressure specifications for your specific machine model before purchasing.
Common Selection Mistakes
Using an undersized breaker on a large machine — wastes the machine's hydraulic capacity
Not using a hydraulic oil cooler — mandatory for continuous operation with heavy breakers
Ignoring the excavator's maximum auxiliary flow setting — some large machines have adjustable flow limits
Selection & Efficiency Tips
On 31–50 ton machines, the SB81 operates at peak efficiency — maximize operating time
Consider a high-flow auxiliary circuit upgrade if your machine's standard flow is below 150 L/min
For 40+ ton machines in quarry applications, consult with breaker specialists about ultra-heavy options
Track operating hours and productivity to optimize maintenance intervals