Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
Mechanical Revolution 4096 38mm Optical Rotary Encoders

Mechanical Revolution 4096 38mm Optical Rotary Encoders

  • High Light

    38mm Optical Rotary Encoders


    4096 Optical Rotary Encoders


    38mm absolute magnetic encoder

  • Name
    K38 Absolute Magnetic Encoder
  • External diameter
  • Shell 
    Die Cast Aluminum
  • Consumption Current
    100mA Max
  • Shaft Load
    Radial: 40N; Axial:20N
  • Top REV
    5000RPM ;IP65≤3000r Rpm
  • Insulation Strength
    AC500V 60s
  • Insulation Resistance
  • Mark To Space Ratio
    45% To 55%
  • Top Response Frequency
    300kHz Max
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
  • 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

Mechanical Revolution 4096 38mm Optical Rotary Encoders

K38 mechanical encoder 4096 revolution external diameter 38mm installation size 45mm


Selling points of our rotary encoder

External diameter 38mm

Thickness 28mm

Power supply voltage 5V or 8--30V

Resolution(PPR):Min 50ppr, Max 16384ppr

IP grade IP50 or IP65

Installation dimension 45mm

Output Phase: A-,B-,Z- or ABZ or A+B+Z+A-B-Z-

Gross weight 140 grams

Slew speed 500 round per minute


Some Related K38 encoder model number

K38-T3N4096 DC5-30V

K38-T3V4096 DC5V

K38-T3F4096D DC30V

K38-T6C3600 DC5V

K38-T3N1000 DC5-24V

K38-T3V1200 DC12V

K38-T6C1024 DC24V

K38-T6E2048 DC8-30V

K38-Q3N2500 DC5V

K38-Q3F5000 DC30V

K38-Q3F8192 DC12V

K38-Q3N10000 DC12-24V

K38-Q3N16384 DC5-30V


Production date

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

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

3. for over 100pcs, production will be discussed with customers and ship on time


Product Basis information

External diemeter 38mm
Thickness 38mm
Installation dimension R23.5mm(spring plate 38T45)
Hollow shaft type blind hole ; through hole
Hollow shaft diemeter 5mm,6mm,6.35mm;8mm
Environmental humanity Operating and storage: 35~85%RH (non-condensing)
Shell Die cast aluminum
Consumption current 100mA Max
Shaft Load Radiel: 40N; Axial:20N
Top REV 5000RPM ;IP65≤3000r rpm
Insulation strength AC500V 60s
Insulation resistance 10MΩ
Mark to Space ratio 45% to 55%
Top response Frequency 300kHz Max
Shell Material die cast aluminum
Bearing life 1.5x109 revs at rated load(100000hrs at 2500RPM)
GND not connect to encoder
Shaft Material Stainless steel
Vibration(endure) Amplitude 0.75mm,5-55Hz,2 hours for X/Y/Z direction individually
Shock(endure) 490m/s2,11 ms three times for X,Y,Z direction individually
Protection grade IP50 ; IP65
Cable length 1000mm
starting torque less than 9.8X10-3 N.m



Mechanical Revolution 4096 38mm Optical Rotary Encoders 0


Mechanical Revolution 4096 38mm Optical Rotary Encoders 1

Principle of encoder

Every 90 el° the incremental encoder outputs a rising or falling edge on the “A” or “B” output that can be interpreted as a count. If an encoder outputs 1000 PPR, a counter can interpret 4000 counts (4 counts each pulse).

The phase angle states the length between 2 edges, given in el°. This parameter is typically specified with a defined constant phase angle value and phase angle error (also called quadrature error).




Injection molding machine

Disc shoe machine,

Textile dyeing

Leather machine

Paper equipment

Industrial machinery

Paper cutter

CNC machine tool

Automatic measurement

Remote control


Our Service

1. Quick response once received customer’s quotation query

2. Professional engineer team, to solve your problems at any time

3. Strictly inspection before shipment

4. Various encoder models to be selected

5. Short lead time

6. High quality standard



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.

Q: Can your encoder be customized?

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