Water Bag for Quarry (Hydro Bag / Steel Cushion Bag)
High-Pressure Hydraulic Bag for Stone Block Pushing
The Toolwits Water Bag for Quarry, also known as a Hydro Bag or Steel Cushion Bag, is a specialized hydraulic expansion tool widely used in marble, granite, and other natural stone quarries. It is designed to apply extremely high pushing force safely and efficiently, helping quarry operators detach large stone blocks after cutting with a diamond wire saw.
✅ Working Principle
This water bag consists of two ultra-strong steel sheets, permanently sealed together around the edges. When water is pumped into the internal cavity under high pressure:
The bag expands outward,
Generating powerful lateral thrust inside the stone cutting slot,
Causing the stone block to separate cleanly and safely from the mountain.
Because it uses water pressure instead of oil, it offers strong pushing force while maintaining maximum safety with no fire risk.
✅ Key Features & Advantages
1. Ultra-Thin 2 mm Design
The hydro-bag is only 2 mm thick when empty, allowing it to fit perfectly into the narrow slot cut by the diamond wire saw.
This eliminates the need for wide pre-drilled holes or large insertion gaps.
2. Massive Pushing Force (Up to 1,000 Tons)
Once pressurized (typically 30–40 bar), the water bag can generate over 1,000 tons of expansive force, enough to move extremely large blocks of marble, granite, limestone, or sandstone.
3. High Strength Steel Construction
Made with high-grade, wear-resistant steel plates:
Excellent fatigue resistance
Long service life
Designed for repeated expansion cycles
Withstands high water pressure safely
4. Safe & Eco-Friendly
Compared with traditional hydraulic jacks or oil-based pumps:
No oil leakage
No explosion or fire risk
Clean, water-based operation
Complies with international safety standards
Certified with ISO9001, CE, SGS, ensuring stable quality and global export readiness.
5. Simple Operation
Insert → Connect pump → Pressurize → Block separates
No professional training required; easy for quarry workers to operate.
6. Cost-Effective Solution
The hydro bag dramatically reduces labor and equipment costs:
No need for explosives
No mechanical jack slots
Less labor-intensive block removal
Higher extraction efficiency
📌 Applications
The Water Bag for Quarry is suitable for:
Granite quarries
Marble quarries
Limestone & sandstone extraction
Stone block pushing after wire saw cutting
Secondary block separation
Quarry bench separation with multiple hydro-bags
It is commonly used after the diamond wire saw completes the main cut, to push the block free from the remaining natural wall.
📐 Available Sizes
Common models (custom sizes available):
100 × 100 cm
120 × 120 cm
160 × 160 cm
Custom dimensions for special quarry requirements
🛠 Recommended Equipment
To operate the hydro-bag, you need:
High-pressure water pump (30–40 bar)
High-pressure hoses
Pressure gauge & safety valve
Quick coupling system
Toolwits can also supply matching pumps, hoses, valves, and connectors.
🎯 Why Choose Toolwits Hydro-Bags?
Premium steel materials
Stable welding and sealing technology
Long lifespan & high safety margin
Proven performance in quarries worldwide
Excellent price-performance ratio
Complete quarry solution supply (wire saws, segments, pads, tools, etc.)
Packing, Storage, Handling and Transportation
After sales service team:
Technical Team:
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