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| Quantity: | |
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SM140
SLYM
China
1pc
L/C, T/T
standard export packaging
3-5days
12 months
avalible
18-26ton
Technical Features & International Standards
High-Quality Forged Steel Chisels: Precision-machined from heavy-forged tool alloy steel and subjected to advanced wear-resistant heat treatment to maximize structural durability and resist shattering in high-resistance strata.
Advanced Wear-Resistant Heat Treatment: Core dynamic components, including the internal cylinder housing and high-tolerance piston, undergo induction hardening and specialized stress-relief processing to prevent friction-induced mechanical scoring.
Reliable Nitrogen Pressure Stability: Features an engineered back-head gas chamber designed for superior nitrogen retention, ensuring steady impact energy delivery and stabilizing the optimal striking frequency across extended operational shifts.
High-End Durable Seal Kits: Outfitted with premium multi-stage international standard seal configurations capable of withstanding intense thermal cycling and protecting the circuit from microscopic oil contamination.
Carrier Weight Class Matching Logic: Precision-calibrated for heavy crawler excavators within the designated 18 to 25-ton class. This technical alignment matches the carrier's auxiliary hydraulic flow rates and operating pressure boundaries exactly, eliminating pump cavitation, reducing backpressure spikes, and preventing premature boom structural fatigue.
Job-Site Precautions & Troubleshooting
Strict Avoidance of Blank Firing: Operators must maintain solid downward pressure to ensure the chisel point is firmly pressed perpendicular against the rock face before executing the stroke. Blank firing sends high-amplitude shockwaves back into the piston face and tie rods, accelerating structural fracture.
Maintain Perpendicular Operational Positioning: Always position the breaker at a true 90-degree vertical angle to the material surface. Using the attachment to pry, lean, or drag rock introduces severe lateral stress, leading to inner front bushing binding, uneven striking paths, and catastrophic piston scoring.
Proactive Management of Oil Temperature and Contamination: Continuous hammering in hard rock generates rapid frictional heat within the host machine's hydraulic lines. Suspend operations if oil temperatures exceed safe limits. Inspect return filters frequently; managing hydraulic oil contamination is vital, as microscopic metal particles act as abrasives that destroy critical cylinder clearances.
Systematic Nitrogen Pre-Charge Verification: Routinely monitor the back-head gas thresholds using a dedicated testing kit. An incorrect low nitrogen pre-charge drastically cuts impact energy, resulting in soft hits, while over-charging creates excessive backpressure that can lock the piston completely and stall operations.
