ROUNDSS
ROUNDSS

Focus on the research and development of encoders and sensor

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ROUNDSS
ROUNDSS

Focus on the research and development of encoders and sensor

EXPLORE MORE CONTACT US
ROUNDSS
ROUNDSS

Focus on the research and development of encoders and sensor

EXPLORE MORE CONTACT US
ROUNDSS
ROUNDSS

Focus on the research and development of encoders and sensor

EXPLORE MORE CONTACT US
ROUNDSS
ROUNDSS

Focus on the research and development of encoders and sensor

EXPLORE MORE CONTACT US
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PRODUCT SERIES

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Absolute Encoder
Incremental Encoder
Electronic Handwheel/MPG
Servo Motor Encoder
Magnetic Ring Encoder
Gear Tooth Encoder
Draw Wire Sensor
Linear Optical Scale
Linear Magnetic Scale
Circular Scale Encoder
Flexible Coupling
Rotary Band Switch
Encoder Components

Absolute Encoder

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Incremental Encoder

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Electronic Handwheel/MPG

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Servo Motor Encoder

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Magnetic Ring Encoder

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Gear Tooth Encoder

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Draw Wire Sensor

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Linear Optical Scale

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Linear Magnetic Scale

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Circular Scale Encoder

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Flexible Coupling

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Rotary Band Switch

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Encoder Components

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MAIN PROMOTED PRODUCTS

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RFC Incremental Circular Scale Encoder

RFC Incremental Circular Scale Encoder

RFC Incremental Circular Scale Encoder

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Absolute Linear Grating Scale RLA100

Absolute Linear Grating Scale RLA100

Absolute Linear Grating Scale RLA100

RLA-100 Series Optical Linear Encoders offer precisemeasurements up to 3040 mm
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Blind Hole Encoder RCC38H

Blind Hole Encoder RCC38H

Blind Hole Encoder RCC38H

End hollow shaft 6/8/10mm, small size, resolution to 5000ppr
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Incremental Linear Grating Scale RLS

Incremental Linear Grating Scale RLS

Incremental Linear Grating Scale RLS

Optical linear scales series RLS are accurate and reliable;
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Incremental Encoder RCC30S

Incremental Encoder RCC30S

Incremental Encoder RCC30S

The RCC30S is widely used in automatic control, automatic measurement
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Hollow Shaft Encoder RCC38T

Hollow Shaft Encoder RCC38T

Hollow Shaft Encoder RCC38T

6/8/10mm through hollow shaft, compact size, high resolution to 5000ppr
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Hollow Shaft Encoder RAA58B20

Hollow Shaft Encoder RAA58B20

Hollow Shaft Encoder RAA58B20

RAA58B photoelectric absolute encoder is a shaft sleeve encoder .
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Split absolute encoder SAR58K24

Split absolute encoder SAR58K24

Split absolute encoder SAR58K24

Application Range：Robots, DD motors, industrial automationr, Radar, non-standard (equipment/systems)r, UAV turntables, turntables Product Features : Absolute encoder based on optical reflection principle, bearing-free r, Small space requirement
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Manual Pulse Generator RSA

Manual Pulse Generator RSA

Manual Pulse Generator RSA

Used for CNC machine tools and printing machinery.
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Hand Wheel RHC60.3

Hand Wheel RHC60.3

Hand Wheel RHC60.3

All-plastic housing design, ultra-compact, weight 0.095kg.
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Solid Shaft Encoder RAA58S10

Solid Shaft Encoder RAA58S10

Solid Shaft Encoder RAA58S10

RAA58S10 photoelectric absolute encoder is a shaft-out type.
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Incremental Optical Encoder - DVC37

Incremental Optical Encoder - DVC37

Incremental Optical Encoder - DVC37

Incremental Optical Encoder OD37 Compact, slim design, high-precision,resolutions up 2500ppr.
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Coupling RD2-AD

Coupling RD2-AD

Coupling RD2-AD

Imported rubber is used, according to different torque, the rubber material is different.
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Digital Output-RLC78D

Digital Output-RLC78D

Digital Output-RLC78D

Incremental encoder and absolute encoder are optional for the digital signal output type.
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Photo-Magnetic encoder - Split RAMR47

Photo-Magnetic encoder - Split RAMR47

Photo-Magnetic encoder - Split RAMR47

Split Reflective Absolute Photo-Magnetic Encoder OD47mm
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Absolute Optical Encoder - Intergrated RAA35.1T6

Absolute Optical Encoder - Intergrated RAA35.1T6

Absolute Optical Encoder - Intergrated RAA35.1T6

Integrated Transmissive Absolute Photoelectric Encoder OD35mm
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OUR ADVANTAGES

OUR ADVANTAGES

SINCE 2006

Changchun Rongde Optics Co., Ltd.(ROUNDSS) is a national high-tech enterprise and little giant science and technology enterprise concerned with R&D, manufacture and sales of industrial encoders and high precision couplings. Founded in 2006, ROUNDSS with registered capital 21.92 million RMB is the only company achieved automatic assembly of encoders in domestic. It is also the main participant in formulating national industry standards.

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ROUNDSS

ROUNDSS

PROFESSIONALISM, DEDICATION AND INNOVATION

01/ Who Am I ?

Professional R&D team and strict quality inspection.

02/ What are my strengths ？

① Excellent quality   ② React quickly  ③ Guarantee of strength  ④ Customized service   ⑤Worry-free after-sales service

19 years

Established In 2006

170 +

Current Employees

60 +

Marketing Network

ROUNDSS

APPLICATION INDUSTRY

APPLICATION INDUSTRY

Machine tool industry

Rubber/plastic machinery industry

The robotics industry

Elevator industry

Food/Medical/chemical industry

Packaging industry

Machine tool industry

In CNC machine tools, the AC servo electric machine tool worktable is mainly used for motion control. In order to display or control the displacement of the machine tool worktable, it is often necessary to convert it into a digital quantity. For this purpose, position sensors are required. Commonly used ones include code disks, induction synchronizers, synchronizers and gratings, etc. CNC machine tools generally use code disks and gratings (hereinafter referred to as encoders) for position detection.
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APPLICATION INDUSTRY

APPLICATION

NEWS

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Types and Applications of Servo Motor Encoders-2

2026-04

Types and Applications of Servo Motor Encoders-2

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Understanding Absolute Encoders: Precision in Motion Control

2026-04

Understanding Absolute Encoders: Precision in Motion Control

Absolute encoders are vital devices in the realm of motion control and automation, offering a unique solution to position sensing. Unlike incremental encoders, which only provide relative position information, absolute encoders deliver a distinct digital output that corresponds to the absolute position of a shaft or axle. This quality ensures that the system can determine its exact position withou

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Rotary Encoder: Precision Position and Motion Sensing in Modern Automation

2026-04

Rotary Encoder: Precision Position and Motion Sensing in Modern Automation

China Rotary Encoder manufacturers, high precision sensing solutions, stable signal output, durable design, ideal for automation and industrial control systems

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For any inquiries or requests, please contact us via phone or online consultation. We provide professional solutions tailored to your needs.

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CONTACT

Compile Excellence, Connect the World

Address：No.1666 Yaan Rd., North Lake Sci-tech Development District, Changchun130102,China.

Telephone：0431-81881745

Email：

adacui@roundss.com.cn 

Whatsapp：

+8615843030327

Wechat：

+8615843030327

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