Hollow Shaft Encoder

The Hollow Shaft Encoder is a high-performance rotary sensing device designed for precise position,speed,and angle detection in industrial and electronic control systems.Featuring a compact Hollow Shaft structure,stable output signals,and smooth rotational performance,it is widely used in industrial automation,robotics,automotive electronics,smart home devices,medical equipment,and communication systems.

Unlike traditional solid shaft encoders,the Hollow Shaft Encoder is mounted directly over a motor or rotating shaft,simplifying installation and reducing alignment errors.Its integrated design saves installation space while providing accurate and reliable signal feedback for demanding applications.

Whether used as a standard hollow shaft rotary encoder or a hollow shaft absolute encoder,this product delivers outstanding durability,high precision,and excellent operational stability.

What Is a Hollow Shaft Encoder?

A hollow shaft encoder is a rotary sensor that converts mechanical rotation into electrical signals.The hollow center allows the encoder to be mounted directly onto a rotating shaft,eliminating the need for couplings and simplifying installation.

Compared with conventional solid shaft designs,hollow shaft encoders provide improved alignment,reduced mechanical wear,and more efficient use of installation space.They are ideal for applications requiring accurate rotational feedback and compact mechanical structures.

How Does a Hollow Shaft Encoder Work?

The encoder detects shaft movement using precision optical or magnetic sensing technology.As the shaft rotates,the sensing element generates electrical pulses corresponding to the shaft's position and movement.

These signals are transmitted to the control system,allowing accurate monitoring of rotation angle,speed,and direction.

For applications requiring continuous position tracking after power interruption,a hollow shaft absolute encoder stores the exact shaft position,eliminating the need for homing after restart.

Product Features

Compact Hollow Shaft Design

The hollow shaft structure allows direct installation onto motors and rotating shafts while reducing assembly complexity and installation time.

Excellent Rotational Stability

The thin hollow shaft design minimizes wobble,ensuring smooth rotation and highly accurate signal output even during continuous operation.

Crisp Positioning Feel

Clear positioning and crisp rotational feedback make the encoder ideal for large control knobs,operator panels,and user interface devices.

High Precision Signal Output

Available with AB two-phase or ABC three-phase incremental outputs,the encoder provides stable and accurate feedback for modern control systems.

Long Service Life

Designed for 30,000 to 50,000 operating cycles,the encoder offers dependable performance in industrial environments.Customized lifespan options are also available.

Wide Operating Temperature

Operating reliably between-40°C and+85°C,the encoder performs well in harsh industrial conditions.

Flexible Shaft Length

Available in 15mm and 25mm shaft lengths to accommodate different installation requirements.

Product Functions

The hollow shaft rotary encoder provides smooth and accurate rotary input for numerous control applications.

Typical functions include:

• Frequency adjustment

• Volume control

• Brightness adjustment

• Menu navigation

• Speed regulation

• Temperature adjustment

• Parameter selection

• Human-machine interface operation

The integrated rotary operation provides intuitive user control while maintaining precise electrical feedback.

Advantages of Hollow Shaft Encoders

Compared with conventional encoder designs,hollow shaft encoders offer several important benefits.

Easy Installation

The hollow center enables direct mounting onto rotating shafts without additional couplings.

Compact Structure

Space-saving construction makes the encoder ideal for equipment with limited installation space.

High Accuracy

Precision sensing technology delivers reliable position and speed feedback.

Stable Performance

Low shaft wobble ensures consistent signal quality during long-term operation.

Reduced Maintenance

Fewer mechanical components result in lower wear and longer service life.

Flexible Integration

Suitable for both new equipment and retrofit automation projects.

Typical Applications

Industrial Automation

Used in PLC systems,industrial control panels,CNC machines,servo systems,and automated production equipment for precise rotary input and position feedback.

Robotics

Provides accurate joint position monitoring and motion control for robotic arms and automation equipment.

Automotive Electronics

Installed in infotainment systems,multifunction control knobs,navigation interfaces,and intelligent cockpit controls.

Smart Home Systems

Ideal for smart lighting controllers,thermostat panels,intelligent switches,and home automation devices.

Medical Equipment

Used in laboratory instruments,diagnostic equipment,medical imaging systems,and precision control panels.

Audio Equipment

Perfect for amplifiers,mixers,speakers,professional audio consoles,and multimedia control systems.

The whole product is made of temperature-resistant material, tested by high-temperature testing equipment at 260℃ for 5 minutes, and there is no change in the appearance of the product!

Q1:What is a hollow shaft encoder?

A:A hollow shaft encoder is a rotary sensor that converts shaft rotation into electrical signals while allowing the shaft to pass through its hollow center for easier installation.

Q2:How does a hollow shaft encoder work?

A:It uses internal optical or magnetic sensors to detect shaft rotation and output electrical signals for accurate position,speed,or angle feedback.

Q3:What is the difference between a hollow shaft rotary encoder and a hollow shaft absolute encoder?

A:A hollow shaft rotary encoder typically provides incremental position information,while a hollow shaft absolute encoder retains the exact shaft position even after power loss.

Q4:Are you a factory or trading company?

A:KKG production and marketing factory,low price and reliable quality,many styles,the factory was established more than 20 years,has a wealth of experience in production and sales,after-sales issues are not to worry about.

Q:How about your quality control?

A:All the products will be 100%checked before the shipment.

Q:How could I get a sample?

A:Free sample,you can take it from our office by your express delivery or pay express fee to us to send you.

Q:What is your warranty?

A:Within 90 days after shipment if quality problem we will solve it well or we accept return of goods and refund your money.

Q:Shipping

A:UPS/Fedex/DHL/TNT/EMS.or pls contact us directly which way your pre ferred.