Low-Frequency Vibratory Hammer Rental
When constructing excavation cofferdams and shore protection structures, choosing the right equipment for driving Larssen sheet piles plays a key role. Low-frequency vibratory hammers are specialized equipment that, thanks to their technical characteristics, are optimally suited for working in dense and cohesive soils.
What is a Low-Frequency Vibratory Hammer?
Low-frequency vibratory hammers operate in the range of 300 to 500 vibrations per minute (approximately 5-8 Hz). The main feature of these machines is their high centrifugal force with a relatively small vibration amplitude. It is this combination of parameters that makes them indispensable when working with heavy steel sheet piles.
Key Characteristics of Low-Frequency Models:
- Large equipment weight — from 3.5 to 13 tons and above
- High centrifugal force — from 647 to 2567 kN
- Powerful hydraulic systems — oil flow can reach 600 l/min
| Class | Frequency (Hz) | Frequency (RPM) | Main Application |
|---|---|---|---|
| Low-frequency | up to 10-15 Hz | up to 800 | Cohesive and dense soils (clay, loam, coarse-grained) |
| Medium-frequency | ~15-30 Hz | ~900 - 1800 | Universal soils (medium-density sands, light loams) |
| High-frequency | 30 Hz and above | 1000 to 2400+ | Low-viscosity and water-saturated soils (sands, quicksands) |
Advantages of Using Low-Frequency Vibratory Hammers for Sheet Piles
Effectiveness in difficult soils. Low-frequency vibratory hammers handle sheet pile driving excellently in clayey, loamy, and dense sandy soils, where high-frequency models may lose efficiency.
Work with long sheet piles. This type of equipment allows driving sheet piles up to 12-15 meters long.
Reliability and simplicity of design. Most low-frequency models belong to the "NF" (Fixed Moment) type, which means fewer complex mechanisms and increased work reliability.
Low-Frequency Vibratory Hammer Rental: An Economically Viable Solution
Purchasing a vibratory hammer is a serious capital investment. The cost of a new machine can exceed 10 million rubles. Therefore, rental becomes the optimal choice for most construction companies.
Rental Advantages:
- Reduced financial burden — no need to invest a large sum at once in equipment purchase.
- Access to modern equipment — rental companies update their equipment fleet.
- Maintenance at the lessor's expense — the owner maintains the equipment's technical condition.
- Flexibility — you can rent equipment for exactly the duration of the work.