Hydraulic Type Vibro Hammer

HV-Series

■HV-250W

For Driving / Extracting Steel Sheet Piles & Casings.

Having a big allowance for the loads, CHOWA Vibrating units have tenacious feature against hard soil.
Centrifugal force of 703kN makes much bigger capacity of driving compared with equivalent models.
The weight of Hanger of Vibro itself designed more heavier and it makes bigger Driving force of the point sectional area of pile or sheet pile against ground Resistance.
Engine, Hydraulic Motor and Hydraulic Pump are selected to make maximum Performance of their capacity.
Less fuel consumption, by our Energy-Saving system of Power units.
(Saving around 30% compared with normal type)
Better durability of Vibration Rubber. (Hanger)
Long time operation is available by the cooling system of vibration unit.
By adopting the closed circuit of hydraulic system, smaller hydraulic tank become available and make less oil feverishness and further more take effect of brake when stopping Vibro hammer.
Low Noise Design
Design knowhow and high manufacturing technology for Gears, achieved low noise level from the Gear.
By covering most of vibrating parts by the hanger, achieved more effective sound-proof.
Installed sound-proof materials inside the Hanger and made less noise.

For Driving / Extracting Steel Sheet Piles & Caisson.
High performance with an Engine Power of 352kW (EU Stage II) achieving Centrifugal force of 702kN.
Advanced Cooling System to enhance performance of componente.
Low-noise Power Pack with latest ‘Sound-proof’ technology.
‘Automatic Energy Speed Control’ for Energy Saving offered as Standard feature.
Optional-’Water Jet System’ offered for driving on Hard Soil.

Vibro Hammer incl. Single chuck
Eccentric moment	kgm	25
Centrifugal force	kN	702
Frequency	rpm	1,600
Max. static line-pull	kN	400
Total weight	kg	5,800
Amplitude	mm	18.5
Single chuck weight	kg	600

Vibro Hammer incl. Caisson chuck
Eccentric moment	kgm	25
Centrifugal force	kN	702
Frequency	rpm	1,600
Max. static line-pull	kN	400
Total weight	kg	6,350
Amplitude	mm	15.3
Caisson chuck weight	kg	1,160

High Centrifugal Force and Economical Constraction Works Available upto 2 meter diameter Casing

Strong Centrifugal Force
Powerful Driving and Extraction Force to the large size steel casings and sheet piles.
Most Reliable Hydraulic Power Unit.
High performance with an engine Power of 708kW acheaving Centrifugal force of 1,460 - 2,364kN.
Good for Environment
Adopting Biodegradable lubrivation.
Adopting the Idling System while waiting.Which make strong holding of the pile even idling condition. and saving a lot of energy.
No Oil-leakage because of preventing force for oil-leakage is installed in the power unit.
Application of Piles.
Driving and Extraction Steel Casings from 800 upto 2,000mm diameter and diagonal upto 20° used for foundation works of Bridges,Shore protection,Breakwater and piers.

Eccentric moment	kgm	110
Centrifugal force	kN	1,460 - 2,364
Frequency	rpm	1,100 - 1,400
Max. static line-pull	kN	1,200
Dynamic weight including chuck	kg	19,550
Chuck weight	kg	2,310x2=4,620
Transport weight	kg	22,450