Instructions
The YONDA YSD20K hydraulic vibratory drill head combines vibration and rotation for foundation and borehole drilling applications. Applications include secant pile walls, ground anchors and excavation support, drilling through cobble and boulder formations, geothermal boreholes, water wells and construction dewatering wells.
Delivering up to 174 kN of vibration force at a maximum frequency of 3,600 cpm (60 Hz), the YSD20K offers two rotation motor configurations, M01 and M02, each with four gear settings. The M01 configuration provides a maximum rotation torque of 33,300 Nm, while the M02 configuration offers a maximum rotation speed of 90 rpm. Configuration selection depends on tooling, borehole diameter and ground conditions.
Key Features
• Hydraulic motor-driven vibration unit with up to 174 kN of vibration force.
• Four rotation gear settings for different torque and speed requirements.
• Applications in foundation support, cobble and boulder drilling, and well construction.
• Integration assessment based on rig hydraulics, mounting interfaces and project requirements.
Parameter
FAQ
1. What applications is the YSD20K designed for?
Applications include secant pile walls, ground anchors and excavation support, cobble and boulder drilling, geothermal boreholes, water wells and construction dewatering wells. Suitability depends on ground conditions, borehole diameter, drilling depth and tooling.
2. What are the vibration force and frequency of the YSD20K?
The catalog specifies a maximum vibration force of 174 kN and a maximum frequency of 3,600 cpm, equivalent to 60 Hz. These are catalog maximum values; actual operating conditions depend on hydraulic supply and load.
3. What is the difference between the M01 and M02 rotation motor configurations?
Both configurations offer four rotation gear settings. M01 has a set pressure of 20.5 MPa, a maximum rotation torque of 33,300 Nm and a maximum speed of 64 rpm. M02 has a set pressure of 28 MPa, a maximum rotation torque of 31,600 Nm and a maximum speed of 90 rpm. Maximum torque and maximum speed occur in different gears, rather than at the same operating point.
4. What hydraulic supply does the YSD20K require?
The vibration unit has a catalog set pressure of 21 MPa and a flow rate of 170 L/min. The rotation unit requires 170 L/min, with a set pressure of 20.5 MPa for M01 or 28 MPa for M02. These figures apply to the individual units; total hydraulic supply requirements must be confirmed against the circuit design and simultaneous operating requirements.
