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Custom Turbine Servomotor Position Rod for Hydropower Plants
The servomotor position rod (position feedback rod) is a critical mechanical feedback component supporting the turbine hydraulic governor system. Connected to the piston of the servo cylinder, it transfers mechanical displacement to the position sensor or feedback lever mechanism when the servomotor moves to adjust guide-vane opening. This provides real-time guide-vane opening data back to the governor controller, enabling closed-loop regulation of unit speed and output power.
Bending, deformation, excessive wear, or thread damage of the position rod can cause position feedback deviation, leading to inaccurate guide-vane adjustment, unit speed fluctuation, and affecting the stable operation of hydropower units.
We deliver tailor-made servomotor position rod solutions strictly based on customer drawings, stroke, load, installation spacing, and on-site environmental conditions.
Main Technical Features
High-strength alloy steel material: Forged alloy steel blank with excellent mechanical performance, withstands frequent alternating impact loads and workshop vibration, resistant to bending or deformation
High-precision machining: Strict straightness and coaxiality control to avoid feedback errors caused by mechanical distortion
Advanced surface treatment: Hard-plating anti-corrosion treatment on working surfaces provides outstanding wear-resistance, scratch-resistance, and moisture-proof performance for humid hydropower plant environments
Diversified connection structure: Customizable threaded ends, pin hole joints, hinge connections, and other end structures to match servo cylinder and displacement sensor assembly requirements
Strict quality control: Complete dimensional tolerance inspection, surface defect detection, and non-destructive testing before delivery to eliminate hidden material defects
Application Scope
Spare & auxiliary components supply for new-built hydropower stations
Governor-system upgrading and retrofitting of existing turbine-generator units
Overhaul replacement parts for Francis, Kaplan, bulb, and pumped-storage reversible units
Medium-large hydropower plants, EPC contractors, and power-asset operators worldwide
Our Services
Custom design & fabrication according to customer drawings or technical specifications
Material & surface-process optimization for high-humidity, vibration-intensive hydropower workshops
Full factory inspection: dimension measurement, appearance check, non-destructive testing
Technical support for installation, commissioning, and on-site maintenance guidance
Please provide your stroke, load parameters, or drawings. We will prepare targeted technical proposals and quotations for you.
