56mm Hollow shaft Encoder

The 56mm Hollow Shaft Encoder is a high-performance rotary position sensing device designed for applications requiring accurate angle measurement,smooth rotational control,and reliable signal feedback.Featuring a compact 56mm housing,a durable Hollow Shaft structure,and an integrated push-button switch,this encoder delivers excellent performance in industrial automation,automotive electronics,smart home systems,medical equipment,and human-machine interface(HMI)devices.

Manufactured in Dongguan,China by KKG,this encoder complies with CE,SGS,and ISO9001 quality standards,ensuring dependable operation in demanding environments.With a rotational life of up to 50,000 cycles,low contact resistance,and stable electrical characteristics,it provides a long-lasting solution for modern electronic control systems.

Whether you require a standard incremental encoder or a hollow shaft absolute encoder for precise position feedback,this product series offers excellent adaptability for various industrial and commercial applications.

What Is a hollow shaft encoder?

A hollow shaft encoder is a rotary sensing device that converts mechanical rotational movement into electrical signals while featuring a center opening through the shaft.Unlike traditional solid shaft designs,the hollow center allows cables,shafts,or pneumatic lines to pass directly through the encoder,making installation cleaner,more compact,and more efficient.

The hollow shaft construction significantly reduces installation complexity while improving alignment accuracy,making it one of the most popular encoder solutions in modern automation equipment.

This hollow shaft rotary encoder integrates both rotational detection and push-button functionality,enabling users to rotate for parameter adjustment and press for menu confirmation or function switching.This dual-function design saves installation space and enhances user interaction.

Operating Principle

The 56mm Hollow Shaft Encoder operates by detecting rotational movement using highly accurate optical or mechanical sensing technology.As the shaft rotates,the internal sensing elements monitor angular displacement and convert the movement into electrical output signals.

These signals are transmitted instantly to the controller,allowing the connected system to determine the shaft's position,rotation direction,and movement speed with exceptional precision.

The hollow shaft enables cables or rotating shafts to pass through the center,reducing wiring interference while improving installation flexibility.

Meanwhile,the integrated push-button switch provides additional control functionality,allowing users to confirm settings,switch operating modes,or activate specific system commands with a simple press.

This combination of rotational sensing and push-button operation makes the encoder ideal for modern industrial control panels,automotive interfaces,and intelligent electronic equipment.

Key Features

Compact 56mm Housing

The compact 56mm diameter allows installation in equipment where mounting space is limited while maintaining excellent mechanical stability.

Hollow Shaft Design

The optimized hollow shaft structure simplifies wiring and shaft installation,making it easier to integrate into complex automation systems.

Smooth 360°Rotation

Continuous 360-degree rotation provides seamless parameter adjustment without mechanical limitations.

Adjustable Rotational Torque

Available shaft rotation force ranges from 50gf.cm to 400gf.cm,allowing designers to choose the ideal tactile feedback for different applications.

Long Mechanical Life

Designed for up to 50,000 rotational cycles,ensuring reliable long-term operation in demanding industrial environments.

Excellent Electrical Performance

Contact Resistance≤1Ω

Insulation Resistance≥100MΩ

AC300V Withstand Voltage

Stable DC5V operation

These characteristics help ensure accurate signal transmission while minimizing electrical interference.

Wide Operating Temperature

Reliable performance from-20°C to+70°C,suitable for both indoor and industrial environments.

Integrated Push Switch

The built-in push-button eliminates the need for separate switches,reducing panel space while improving operating efficiency.

Product Functions

Accurate Angle Detection

The encoder precisely converts rotational movement into digital electrical signals for accurate position monitoring.

Parameter Adjustment

Users can smoothly rotate the encoder to adjust machine parameters,menu settings,speed,volume,brightness,or other variables.

Function Selection

Integrated push-button functionality allows quick mode switching and menu confirmation.

Real-Time Signal Feedback

Fast response and stable output ensure precise synchronization between the encoder and control system.

Human-Machine Interaction

The encoder provides intuitive operation,making it ideal for HMI systems,industrial touch panels,and intelligent control interfaces.

Advantages of the Hollow Shaft Design

Compared with traditional solid shaft encoders,hollow shaft encoders offer several important advantages.

Easier Installation

The center opening allows shafts and cables to pass directly through the encoder,reducing assembly complexity.

Better Space Utilization

Equipment designers can maximize internal space without requiring additional routing channels.

Reduced Mechanical Stress

The hollow shaft structure minimizes shaft alignment errors while reducing installation stress.

Cleaner Cable Management

Passing cables through the shaft protects wiring and improves the overall appearance of the equipment.

Improved System Reliability

Simplified installation reduces mechanical wear and minimizes maintenance requirements over time.

Typical Applications

Industrial Automation

The encoder is widely used in industrial control equipment,PLC systems,CNC machines,and Siemens operator panels.

Operators rotate the encoder to configure machine parameters,production settings,and operating modes with high precision.

Automotive Electronics

Modern vehicles increasingly rely on rotary controllers for infotainment systems and navigation interfaces.

The encoder enables smooth menu navigation,audio adjustment,and system control while delivering precise rotational feedback.

Smart Home Control Panels

Smart home devices use rotary encoders for lighting control,temperature adjustment,curtain operation,and scene selection.

The integrated push switch simplifies user interaction while maintaining an elegant interface.

Medical Equipment

Medical instruments require precise and reliable control.

The encoder is suitable for diagnostic equipment,laboratory devices,imaging systems,and patient monitoring instruments where accurate parameter adjustment is essential.

Communication Equipment

Network devices,communication terminals,and professional control consoles utilize rotary encoders for frequency selection,parameter configuration,and menu navigation.

Consumer Electronics

Applications include:

Audio equipment

Smart speakers

Amplifiers

Professional mixers

Digital instruments

Intelligent appliances

KKG Electronics, each part of the use of temperature-resistant materials, high-temperature testing equipment 260 ℃ for 5 minutes, the appearance of the product does not change!   

High effiency of production, shipped in 1 day after payment.

Q1:What is a hollow shaft encoder?

A1:A hollow shaft encoder is a rotary sensor that converts shaft rotation into electrical signals for measuring position,speed,or angle.Its hollow center allows a motor shaft or cable to pass through,making installation easier and saving space.A hollow shaft absolute encoder can also retain the shaft's position even after a power outage,making it ideal for applications requiring reliable position feedback.

Q2:How does a hollow shaft encoder work?

A2:A hollow shaft encoder uses internal sensors to detect shaft rotation and convert it into electrical signals for accurate position or speed feedback.Its hollow center allows easy installation over a motor shaft,while a hollow shaft absolute encoder can retain position even after a power loss.

Q3:What is your delivery timeframe?

A3:For commonly requested models,we usually have stock available for immediate dispatch.For other models,lead time is typically just a few days.

Q4:What about the quality of your products?

A4:Every product is rigorously tested to ensure 100%functionality before shipment.We stand by our commitment to provide durable and dependable quality.

Q5:How are your products packaged?

A5:Our products are securely packed with inner boxes and sturdy outer cartons to ensure maximum protection during transit.

Q6:What payment options do you offer?

A6:For small orders,payment via PayPal is preferred.For larger orders,we accept payment through T/T(bank transfer).