Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
8mm Solid Shaft Absolute Optical Encoder External Diameter 51mm 4096 Steps Per Turn

8mm Solid Shaft Absolute Optical Encoder External Diameter 51mm 4096 Steps Per Turn

  • High Light

    absolute position encoder


    gray code encoder

  • Encoder Type
    Absolute Position Encoder
  • Bit(steps)
    5 Bit;6 Bit;7 Bit;8bit;9bit;10 Bit;11 Bit;12bit
  • Installation Dimension
    40mm Diameter
  • Solid Shaft diameter
    8mm D Shape
  • Interface
    NPN Output
  • Precision
    360/(resolution X 4)
  • Cable Length
    1000mm(cable With Shielding)
  • Net weight 
    About 300g (with Package)
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    SJ50 rotary encoder
  • Minimum Order Quantity
    1pcs encoder to start order
  • Price
  • Packaging Details
    each 1 piece was packed into single carton box
  • Delivery Time
    3-5 working days for sample order, 7-15 working days for mass order
  • Payment Terms
    D/A, D/P, T/T, Western Union, Credit Card, Master Card,Paypal, etc
  • Supply Ability
    100K pieces per year

8mm Solid Shaft Absolute Optical Encoder External Diameter 51mm 4096 Steps Per Turn

Optical absolute encoder external diameter 51mm solid shaft 8mm 4096 steps per turn


Absolute encoder model number








SJ50-T7 NH128

SJ50-C8 NH256W

SJ50-C6 NH64W

SJ50-TE6 NH64E

SJ50-TE5 NH32C


SJ50 Encoder Parameter table

Encoder type absolute encoder
External diameter 51mm
Thickness 29mm
Installation dimension 40mm diameter
Outlet type Radial cable
  Radial socket
  Radial cable with plug
Count direction counterclockwise
  outside control direction
Interface NPN low level effective
  NPN high level effetive
Insulation strength AC500V 60s
Insulation resistance 10MΩ
GND not connect to encoder
starting torque less than 5x 10-3N.m
Intertia moment less than 3x 10-6kg.m2
Shaft load Radial 50N; Axial 30N
Top REV 3000RPM ;IP65≤2000 RPM
Bearing life 1.5x109 revs at rated load(100000hrs at 2500RPM)
Environmental temperature Operating:-20 ~+85°C;storage:-25 ~+90°C
Environmental humidity Operating and storage: 35-85%RH(noncondensing)
Certification CE
package Carton box
Net weight About 300g (with package)



Questions you may interested before ordering

Q: Do you have some videos of your products?

A: Yes, you could visit our YOUTUBE page for encoder videos.

Q: What’s your encoder product guarantee policy?

A: 1 year quality warranty and life-long technical support.

Q: Where can I download the encoder catalogue or datasheet?

A: You could visit our official website or email us directly to the latest files.

Q: What parameters are requested before ordering an encoder?

A: You should get some basic parameters before you start to order. Such as installation dimensions, resolutions, circuit signal, power supply voltage, etc.

If you have any doubt on selecting the model, you are welcome to contact us for more assistant.

Q: Where is your factory?

A: Our factory is located on Shanghai City.

Q: Can I pay a visit to your factory?

A: Yes, you we welcome to visit our factory at any time if convenient.

Q: How long is your delivery time?

A: Usually 3 working days for sample, 7-15 days for mass production,

The production date is according to order quantity.

Q: What is the highest resolution of your encoder products?

A: The highest resolution is 80000ppr, you can email us for more information.


8mm Solid Shaft Absolute Optical Encoder External Diameter 51mm 4096 Steps Per Turn 0


Payment terms:

1. T/T, western union, credit card, Paypal, etc

2. 3-5 working days after payment received

3. Encoders will be shipped once ready


Why choose us?

HENGXIANG brand--The trustworthy partner
CE approved--advantaged product quality;
Fast delivery--strong stock product ability;

Factory directly provide a competitive price;
One-stop service--for your efficient purchasing experience;

OEM design accepted--customized design, your own brand accepted.


More information

If you are looking for more information about our factory or about our products, please contact us or email us right now, we will reply you as soon as possible.