Products
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HDY5 Hydraulic Impact Hammer
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FV-330 Series Photovoltaic Pile Driving/Extraction Machine
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Electric Vibrating Hammer DZ60A
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High Frequency Vibrating Hammer FV-400
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SV-200 Series Side Clamping Pile Driving/Extraction Machine
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FV-600 Series Four Eccentric Pile Driving/Extraction Machine
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SV-500 Series Side Clamping Pile Driving/Extraction Machine
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High Frequency Vibrating Hammer FV-350
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SV-300 Series Side Clamping Pile Driving/Extraction Machine
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Hydraulic Impact Hammer HDY22
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FV-500 Series Four Eccentric Pile Driving/Extraction Machine
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Taiwan PCF350 Series Pile Driving/Extraction Machine
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Electric Vibrating Hammer DZ150A
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Mini pile driving/extraction machine FV-150 series
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FV-800 Series Four Eccentric Pile Driving/Extraction Machine
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Hydraulic Impact Hammer HDY25
SV-400 Series Side Clamping Pile Driving/Extraction Machine
Heavy duty pile hammer for limited access
Vibrator with double gripper 656 kn
Independent side and bottom grip logic
Compatible with high-torque excavators 32–40 t
Pile pulling mode under the beam
Cast steel tilt bracket (360°/±30°)
Possibility of reconstruction of foundations without columns
Force conservation at low installation heights
Description
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YEKUN Weiboro SV-400 – Heavy Duty Piling Hammer for Limited Access | 656kN double jaw vibratory loader with independent side and bottom jaws for 32-40t excavators
Description:
The YEKUN Weiboro SV-400 is a true heavy duty piling hammer for limited access. It is designed for excavators in the 32-40t range and allows piles to be driven where vertical space is measured in meters rather than floors. The hammer provides 656 kN of dual-grip vibratory loader power with a low profile, allowing it to work under bridge decks, in parking lots or inside existing building columns.
The SV-400 is based on independent side and bottom grip logic. The side grip provides a holding force of 385 kN, the bottom grip provides 520 kN. Each gripping circuit operates separately, giving the operator precise control over a variety of pile shapes, from H-beams to round pipes. This independent logic eliminates the need for manual readjustment when changing pile types.
The SV-400 is compatible with high-torque 32-40t excavators thanks to its optimized center of gravity. The hammer weighs 3870 kg (including connectors and grippers), ideally balanced for Caterpillar 336, Komatsu PC360 and Hitachi ZX350 excavators. The reinforced mounting bracket attaches directly to the stock boom lugs, without welding or structural modifications.
A special feature is the mode of pulling piles under the beam. The operator tilts the hammer sideways using a cast tilt bracket (360°/±30°), guides the pile under a low obstacle, and then returns the hammer to the vertical position for driving. The bracket is made of one piece, without welds that can crack under cyclic vibration loads. Combined with continuous 360° rotation, the SV-400 can approach piles from any angle without moving the excavator.
With an eccentricity of 6.6 kg m and a variable frequency (2300–3000 rpm), the 656 kN double-grip vibratory driver is capable of driving steel sheet piles up to 14 m long or reinforced concrete piles into medium-density soils. At the same time, the total height of the hammer does not exceed 3.1 m, which ensures that the force is maintained at a low height - power is not lost even in a limited space.
The SV-400 is a specialized tool for the reconstruction of column-free foundations. In building strengthening projects, where installing new piles within existing structures typically requires the removal of floors or roof panels, this hammer passes through the side. One operator can clamp, tilt, load and remove the pile without manual lifting. Site reports show productivity gains of 3 to 5 times over traditional crane and guide installations in confined spaces.
For contractors regularly faced with confined work spaces, the YEKUN Weiboro SV-400 transforms a standard 32-40t excavator into a 656kN dual-grip vibratory pile driver capable of pulling, tilting, clamping, driving and retrieving piles - all with independent side and bottom grip logic and under-beam pulling mode. The SV-400 proves that high diving power doesn't require a lot of space.
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