SB81 Cat Hydraulic Hammer 140mm Chisel 20-25 Ton Heavy Excavator Rock Breaker

This heavy-duty SB81 triangular hydraulic breaker is a high-performance 140mm chisel breaker, universal 18-26 ton excavator breaker and robust triangular rock hammer. As a durable excavator breaker attachment and efficient heavy duty demolition hammer, it is essential construction breaker parts for medium-large excavators. Adopting triangular reinforced housing and nitrogen energy storage system, it delivers strong impact for primary rock breaking, concrete demolition and road construction. It solves weak striking, low frequency, oil leakage and abnormal noise. Standard mounting interface for direct installation. Widely used in mining, quarrying, infrastructure construction and site demolition.

Parameter Table

Core Technology

SB81 triangular breaker adopts mining-grade hydraulic impact technology. Alloy steel cylinder with precision deep boring ensures smooth piston movement. Piston and chisel go through vacuum quenching for high hardness and toughness. Optimized internal oil circuit improves energy efficiency. Each unit passes nitrogen filling test, continuous impact test and sealing test before delivery.

Working Principle

Excavator supplies high-pressure hydraulic oil to the breaker. Hydraulic oil pushes the piston up to compress nitrogen in the accumulator. Nitrogen releases energy to drive the piston down rapidly, striking the chisel to generate impact force. The chisel transfers energy to rock/concrete to finish breaking. Hydraulic-nitrogen cycle repeats for continuous striking.

Product Advantages

• Triangular Reinforced Structure: High rigidity, strong impact resistance for heavy breaking
• Powerful Impact: Nitrogen-hydraulic system, high primary rock breaking efficiency
• Zero Leakage: Imported multi-layer seals, reduce oil leakage failure
• Durable: Hardened core parts, long service life in mining conditions
• Wide Compatibility: Standard interface, fits most 18-26 ton excavator brands
• Cost-Effective: Factory direct supply, competitive wholesale price

FAQ

1. Q1: What excavator tonnage fits SB81 140mm triangular breaker?
2. A1: It fits most 20-25 ton crawler excavators. Confirm excavator flow and pressure before purchase.
3. Q2: What faults indicate the breaker needs maintenance?
4. A2: Weak striking force, intermittent hitting, hydraulic oil leakage, abnormal noise during operation.
5. Q3: Does this breaker set include the 140mm chisel?
6. A3: Yes, complete set includes standard 140mm 42CrMo chisel, mounting pins and necessary wearing parts.
7. Q4: What's the advantage of triangular housing vs straight type?
8. A4: Triangular housing has higher rigidity and better impact resistance, more stable for heavy-duty primary rock breaking.
9. Q5: Do you support bulk wholesale for mining fleets?
10. A5: Yes, we support bulk orders for mining companies and repair shops, with favorable price and reliable after-sales support.