S38 Optical Encoder incremental solid shaft encoder rotary encoders

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Quick Details
Place of Origin:
Shanghai, China
Brand Name:
Model Number:
S38 Optical Encoder
Position Sensor
Optical Sensor
square-wave signal
S38 Optical Encoder incremental solid shaft encoder rotary encoders
Shaft diameter:
6mm (D type)
max to 16384 PPR
Grade of protection:
IP50& IP65
Optional supply voltage:
DC5V & DC8-30V
Output mode:
NPN,PNP,voltage output.Line Driver, RS422
Outlet type:
Wire out from side & back
Wire length:
about 120g (with package)

Packaging & Delivery

Selling Units:
Single item
Single package size: 
15X15X15 cm
Single gross weight:
0.2 kg
Package Type:
Carton box for S38 Optical Encoder incremental solid shaft encoder rotary encoders
Lead Time :
Quantity(Piece) 1 - 10 >10
Est. Time(days) 3 To be negotiated



S38 Optical Encoder incremental solid shaft encoder rotary encoders





1) Advantages 


1, Factory advantage 

------Customer Repurchase rate ≥ 85%

------Over 25 years experience engineer team in research and development

------ CE & ISO9001 & SGS Certification


2, Encoder Advantages

    --- Mini outer size of 38mm

   --- Solid shaft 6mm

   --- Resolution max to 16384ppr.

   --- Power supply voltage 5-30V

   --- Max motor speed to 24000 RPM

3, Application: textile industry, packing machinery, production line, etc., for automation control.



Product Description


Detailed Images



3) S38- Series encoder Specification 


External dimensionsExternal diameter: 38mm ;Thickness: 28mm ;Shaft diameter: 6mm



Output phasePhase A,B,Z,A-,B-,Z-
OutlettypeCable out from side & back 
Protection gradeIP50 & IP65
Cable length1000MM
packageCarton box
Net weight About  120g (with package)
Certification CE/ ISO9001
Output modeN -pen Collector(NPN)V-Voltage outputF-Push-pull outputC- Line driver (26LS31) & RS422E- Line driver(7272)
Supply voltageDC+5V±5% & DC8-30V±5%DC+5V±5% DC8-30V±5%
Consumption current100mA MAX200mA MAX
Top response frenquency100KHZ200KHZ
Output volumeoutput currentInput ≤30mALoad resistance 2.2K ≤30mA≤±20mA
output- ≤10mA
output voltage"H"--≥(supply voltage-2.5V)≥2.5v
"L" ≤0.4V ≤0.7V(Less than 20mA)≥0.4V(when≤30)≤0.5V
Load Voltage≤DC30V-
Rise & Fall timeless than 2us(load resistance 1KΩ,cable length:2Mless than 1us(cable length:2m)
Origin motion low lelvel availablehigh level availablelow level availablehigh level available
starting torqueless than 1mN.m
Intertia momentless than 1x 10-6kg.m2
Shaft loadRadial 30N; Axial 20N
Top REV5000RPM
Environmental temperatureOperating:-20  ~+80°;storage:-25 ~+85°
Enviromental humidityOperating and storage: 35-85%RH(noncondensing)
Vibration(endure)Amplitude 0.75mm,10-50Hz,1 hour for three axis individually
Sock(endure)49m/s2 ,three times for X,Y,Z direction individually
Material Main body: aluminium alloy
Cable length1000mm(cable with shielding)



 4)Machine Dimension




Company Information

ShanghaiHengxiangOptical Electronics Co.,Ltd, located on Shanghai, an international city of China, set up in 2001, is a professional manufacturing high-tech corporation, providesresearch and manufacturing ,entityintegrating optical,mechanical and electronic design.

After development for many years, rotary encoders now have 10 series and over 100 sorts, both popularly sale around the world. Our rotary encoders are widely used for automation field, such as, Office equipment ,Water conservancy equipment,Electrical equipment,Textile machinery,Carpentrymachinery,Injection machinery,Vulcanizateequipment ,Medical device,CNC machine,Metallurgical machine,Printing machinery,testing machine,Elevator,Servo motor,Packing machine, etc. , and has won trust and high reputation from clients .



"HengXiang" brand encoder, has ISO9001:2000 Quality Management System Certificate and CE Certification, moreover, we have own invention patents five and utility model patents five, also passed Shanghai New and High-tech AchievementsTransformation Project.
Our target:Meeting Client's Requirement,Creating Social value,serving clients attentively and Achieving win-win.




Product Quality

Following the metto of "Quality through developing", we ensure that all our customers will be supplied only the best quality and the best services from us. lf you are interested in any item of our products, please do not hesitate to contact us. We are expecting to build mutual beneficial business relationship with you esteemed company in neat future.


Our service

Shanghai Hengxiang Optical Electronics Co,ltd commits to provide customers with a wide range of world-class, good quality and reliable , timely and superior services and complete solutions. Shanghai Hengxiang Optical Electronics Co,ltd  is able to supply you with a 12-month warranty.






Q. Are you Trading or Manufacturer ?
A: We are Professional Manufacturer since 2001.


Q. How can I trust you?
A: We HENGXIANG have been in this line since 2001, with a team doing export for 20+ years,14 years of Alibaba verified supplier member, we are professionals doing professional business.


Q: What specifications are required before order an encoder?

A:Encoder type----------------solid shaft or hollow shaft encoder

  External Diameter----------Min 12mm, MAX 158mm

  Shaft Diameter---------------Min shaft 2.5mm, Max shaft 80mm

  Phase & Resolution---------Min 20ppr, MAX 80,000ppr

  Circuit Output Mode---------you could choose NPN,PNP,Voltage, Push-pull,Line driver

  Power Supply Voltage------DC5V-30V


 Q; How many pieces to start ?

A; 1PCS only


Q: Why choose "Hengxiang" Brand Encoder 

A: All encoders are designed and developed by our own engineer team since year2001,

and most of the electronic component of encoders are imported from overseas market.

Never let our quality down, because quality is our culture.


Q: How long is your lead time? 

A: Short lead time----3 days for samples,7-10days for mass production


Q: What is your guarantee policy?

A:1year warranty  and  life-long technical support 



Q: Your Company Official Website? 

A:You may visit our official website: http://www.shhxgd.com


Q: Where to download encoder datasheet or catalogue? 

A:You could visit our website at http://www.shhxgd.com or contact online sale service to get the latest catalogue files.