Description
Product Description
Encoder N-86517-38
The Encoder N-86517-38 is a precision incremental rotary encoder designed for accurate speed and position feedback in tower crane hoisting mechanisms, slewing drives, and construction hoist systems. As a direct OEM replacement for part number N-86517-38, this encoder ensures seamless integration with variable frequency drives (VFDs) and PLC-based control systems, providing real-time data essential for smooth acceleration, precise positioning, and safe operation under variable load conditions.
Built to withstand the electrical noise, vibration, and harsh environmental conditions typical of construction sites, this encoder delivers reliable, maintenance-free performance in critical lifting applications.
Key Features
ndustrial-Grade Protection: Rugged housing with IP67 ingress protection rating – fully sealed against dust, water, oil, and concrete slurry.
High Noise Immunity: Optically isolated electronics and fully shielded against electromagnetic interference (EMI) from nearby motors, brakes, and power cables.
Wide Operating Temperature: Engineered for extreme environments, reliable operation from -30°C to +90°C.
High-Speed Performance: Maximum response frequency up to 400 kHz, suitable for high-speed hoisting and rapid traversing applications.
Flexible Mounting Options: Available with solid shaft (with or without keyway) or hollow shaft configurations, with flexible coupling for easy motor mounting.
Applications
Tower Cranes: Speed feedback for main hoist and auxiliary hoist drives; position feedback for slewing mechanism control.
Construction Hoists: Closed-loop speed control for VVVF-driven personnel and material lifts.
Overhead Cranes: Bridge and trolley travel feedback for precise positioning.
Hoisting Winches: Motor speed control for accurate load handling.
Slewing Drives: Rotation speed monitoring for crane superstructure.
Trolley Mechanisms: Position feedback for variable frequency-driven trolley travel.
Our Advantages
Professional supplier of tower crane spare parts
Competitive pricing
Stable supply and fast delivery
Strict quality inspection before shipment
Export experience to global markets






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