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SU400
SLYM
China
1pc
L/C, T/T
standard export packaging
3-5days
12 months
avalible
43-50t
Overview & Working Principle
The SLYM Machinery underwater hydraulic breaker operates on the same core principle as land-based models—utilizing high-pressure hydraulic oil to drive a reciprocating piston that strikes the chisel at high frequencies. However, marine operations introduce unique structural and environmental challenges.
Our breakers utilize a dual-action cycle combined with a continuous air-supply circuit linked to a surface air compressor. This system equalizes internal and external pressures, preventing water ingress, hydraulic lock, and premature seal failure.
Key Engineering Features
Advanced Air-Pressure Compensation: Continuous airflow into the housing creates a positive pressure barrier, blocking water intrusion and clearing out any condensation or minor seepage instantly.
Corrosion & Wear Resistance: Manufactured with high-strength alloy steels, reinforced housing shields, and specialized marine-grade surface treatments to resist saltwater corrosion and abrasive silt.
Optimized Backpressure Management: Engineered hydraulic circuits accommodate return-line pressure variations, ensuring stable frequency and preventing cavitation in deep-water applications.
Heavy-Duty Chisel Integration: Fitted with specialized high-impact chisels designed to fracture high-strength reinforced concrete and hard subsea rock formations effectively.
Technical Specifications & Model Selection Matrix
| Model Series | Suitable Carrier Weight | Required Hydraulic Flow | Operating Pressure | Required Air Compressor Output | Recommended Application Range |
| SU100 | 10 - 20 Tons | 60 - 110 L/min | 150 - 170 bar | 1.5 - 2.0 m3/min | Shallow water, coastal maintenance, minor trenching |
| SU200 | 20 - 35 Tons | 120 - 220 L/min | 160 - 180 bar | 2.0 - 3.5 m3/min | Standard port construction, caisson breaking, marine civil works |
| SU300+ | 35 Tons + | 230 - 350 L/min | 180 - 210 bar | 3.5 - 5.0 m3/min (Depth dependent) | Deep-water bridge foundations, massive subsea rock excavation |
(Note: Custom mounting brackets and pin configurations are available to fit specific excavator brands and long-reach marine booms.)
Critical Operational Guidelines for Maximum Lifespan
Pre-Submergence Air Supply (Mandatory): Always start the surface air compressor and establish internal air pressure before or simultaneously as submerging the breaker into the water. Never submerge or operate the unit without active air compensation, as sudden water pressure can instantly ruin internal seals.
Strict Blank-Firing (Dry-Firing) Prevention: Avoid empty strikes when the chisel is not firmly engaged against the rock or concrete workpiece to eliminate destructive internal stress waves.
Hydraulic Oil & Flow Matching: Ensure your carrier machine's main relief valve and oil flow match the exact specifications listed above to prevent overheating or sluggish impact frequency.
