SB121 Hydraulic Breaker Attachment For 20–30 Ton Excavator
This SB121 hydraulic rock breaker is a heavy-duty SB121 excavator breaker fitted with a 155mm chisel, a high-power 20-30t digger attachment ideal as a quarry breaking hammer and large mining rock breaker for rock quarrying & concrete demolition.
Built with an integrated body and built-in accumulator, it delivers powerful impact and stable frequency to crush granite, basalt and reinforced concrete. Optimized oil circuits reduce overheating during nonstop work and solve common issues like power loss and oil leakage. The thick shell, forged wear-resistant chisel and imported seals cut maintenance downtime, making it the preferred breaking attachment for mines and engineering firms worldwide.
Parameter Table
| English Parameter | Spec |
|---|---|
| Model | SB121 Hydraulic Breaker |
| Match Excavator | 20–30 Ton Crawler Excavator |
| Standard Chisel | 105mm Forged Chisel |
| Working Pressure | 165–185 Bar |
| Structure | Integrated Cast Shell + Built-in Accumulator |
| Application | Mining, Rock Breaking, Road Demolition |
Product Advantages
- Hard rock breaking efficiency +20% vs ordinary same-size breakers thanks to the large accumulator.
- Stable performance during all-day continuous mining work without thermal attenuation.
- Thickened shell reduces cracking failure in complex mine environments.
- Universal accessories cut dealer inventory costs.
- Vibration reduction system extends excavator service life.
- Factory direct supply, cost-effective for bulk mining procurement.
FAQ
Q1: What excavator tonnage matches SB121?
A1: Fits 20–30 ton crawler excavators perfectly, no overload damage to the main pump.
Q2: Can SB121 work in open-pit mines for hard rock?
A2: Yes. Large built-in accumulator + 155mm heavy chisel breaks granite/basalt efficiently and works continuously all day.
Q3: Are SB121 spare parts interchangeable?
A3: Yes, our SB121 adopts industry general standards; chisels, seals and pins fit all standard SB121 breakers on the market.
Q4: Why will it not lose strength after long working hours?
A4: Optimized heat dissipation oil circuit avoids seal thermal expansion and pressure drop, maintaining stable impact force.
Q5: Does it support single / continuous strike switching?
A5: Yes. Single hit for precise rock splitting, continuous hit for rapid concrete breaking & mass rock excavation.
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