Instructions
The YONDA YDH80B combines hydraulic rotation and percussion for anchoring, water well drilling and Ø178 mm casing drilling. Its two-speed hydraulic rotation system allows speed and torque selection through hydraulic circuit switching, while three percussion frequency options support application-specific configuration.
With maximum rotation torque of 14,760 Nm and maximum rotation speeds of 71 rpm and 35 rpm in the respective settings, the YDH80B provides drilling rig manufacturers and contractors with speed and torque options for their drilling requirements.
Key Features
- Combined rotation and percussion: Integrates both functions for anchoring and water well drilling applications.
- Two-speed hydraulic rotation: Select rotation speed and torque through hydraulic circuit switching.
- Three percussion frequency options: Available for application-specific selection.
- Ø178 mm casing drilling: Suitable for corresponding casing drilling applications, subject to tooling and operating conditions.
Parameter
Product Video
FAQ
1. What applications is the YDH80B suitable for?
The YDH80B is suitable for anchoring, water well drilling and Ø178 mm casing drilling. Selection should consider ground conditions, drilling depth, tooling and the carrier’s hydraulic capabilities.
2. What are the two rotation settings??
The first setting provides a maximum speed of 71 rpm and maximum torque of 7,380 Nm. The second provides a maximum speed of 35 rpm and maximum torque of 14,760 Nm. Settings are selected through hydraulic circuit switching. Actual output depends on hydraulic supply and operating load.
3. What percussion frequency options are available?
The YDH80B offers three percussion frequency options. The catalog lists a percussion frequency of 2,500 bpm. Contact YONDA to confirm the individual settings and corresponding hydraulic requirements for your application.
4. What hydraulic requirements should be checked before integration?
The catalog specifies an operating pressure of 180 bar and flow of 130 L/min for percussion, and 205 bar and 170 L/min for rotation. Each function’s hydraulic supply and control circuit should be checked separately, together with the mounting interface and carrier load capacity. The head weighs 755 kg.
