Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
4mm D Type 1440 Resolution S25 Solid Shaft Rotary Encoder

4mm D Type 1440 Resolution S25 Solid Shaft Rotary Encoder

  • High Light

    Solid Shaft Rotary Encoder


    D Type Solid Shaft Encoder


    4mm Solid Shaft Encoder

  • Weight
    Approxi 0.3KG
  • Voltage
    5~26v Option
  • Material
    Stainless Steel Shaft,Aluminum Alloy
  • Product Name
    Optical Incremental Encoder
  • Warranty
    2 Years
  • Operating Temperature
    -20 °C(-40 °C)- +85°C
  • Current Consumption
  • Protection Class
    Up To IP68
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    Key Features of S25 solid shaft 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

4mm D Type 1440 Resolution S25 Solid Shaft Rotary Encoder

S25 rotary encoder solid shaft 4mm D-type 1440 resolution line driver 26LS31 output


Key Features of S25 solid shaft encoder

External diameter: 25mm

Solid shaft diameter: 4mm(D shape)

Thickness: 30mm

Encoder type: Incremental encoder

Resolution : 20;25;36;50;60;100;200;250;256;300;360;400;500;512; 600;625;720;1000;1024;1200;1250;1440;2000;2048;2500

Output phase: Phase A,B,Z,A-,B-,Z-

Outlet type: Cable out from side or Cable out from back


Production date

1. for 1-10 samples: 3-5 working days

2. for 20-50 mass production: 7-10 working days



Items Basic parameters
Output mode NPN&PNP
  Voltage output
  Push-pull output
  Difference output(TTL,HTL,RS422)
Environmental temperature Operating temperature: -20~+80° (Non icing)
  Storage temperature: -25~+85° (Non icing)
Environmental humanity Operating and storage: 35~85%RH (non-condensing)
Protection grade IP50
Cable length 1M (cable length could be added appropriately by
  require, but it need payment individually)
Consumption current 100mA Max
Allowable ripple ≤3%rms
Shaft Load 4mm D Type 1440 Resolution S25 Solid Shaft Rotary Encoder 0Radiel: 10N; Axial:5N
GND not connect to encoder
Slew Speed 5000rpm
Insulation strength AC500V 60s
Insulation resistance 10MΩ
Mark to Space ratio 45% to 55%
Top response Frequency 100kHz Max
Shell Material die cast aluminum
Bearing life 1.5x109 revs at rated load(100000hrs at 2500RPM)
Shaft Material Stainless steel
Vibration(endure) Amplitude 0.75mm,10-55Hz,1 hour for X/Y/Z direction individually
Shock(endure) 49/m/s2,three times for X,Y,Z direction individually
package Carton box
Net weight 50g (with package)
Certification CE



o Goods can shipped via TNT, FedEx, UPS, DHL, EMS, etc.

o You could select the express according to your requirements if freight collector

o If you do not have any courier account, we will check and find a cheapest and safety express for you.

o Our factory has 30% discount with most courier company, so price could be as cheap as possible.



Q: How to pay for a sample?

A: Currently, our factory accept T/T, Credit card, Paypal, Western Union or cash.

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: Can your encoder be customized?

A: Yes, our encoder can be customized according to your requirements,

Q: Do you test your encoder product before shipment?

A: Yes, we 100% test and examine every piece before shipping to make sure it work well on your device.