Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
Miniature Photoelectric Absolute Encoder 10 Bit IP50

Miniature Photoelectric Absolute Encoder 10 Bit IP50

  • High Light

    Photoelectric Absolute Encoder


    Miniature Absolute Encoder


    Single Turn Absolute Encoder IP50

  • Allowable Ripple
  • Outlet Type
    Absolute Encoder/ Radial Cable/ Radial Socket /axial Cable With Plug /Radial Cable With Plug
  • Precision
    360/(resolution X 4)
  • Sock(endure)
    49m/s2 ,11 Ms Three Times For X,Y,Z Direction Individually
  • Bit(steps)
    5 Bit;6 Bit;7 Bit;8bit;9bit;10 Bit;11 Bit;12bit
  • Shell Material
    Die Cast Aluminum
  • Encoder Type
    Absolute Encoder
  • Environmental Humidity
    Operating And Storage: 35-85%RH(noncondensing)
  • Interface
    NPN Low Level Effective /NPN High Level Effetive
  • Count Direction
    Counterclockwise/outside Control Direction /clockwise
  • Bearing Life
    1.5x109 Revs At Rated Load(100000hrs At 2500RPM)
  • Environmental Temperature
    Operating:-20 ~+85°C;storage:-25 ~+90°C
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    Miniature photoelectric absolute encoder SJ38
  • 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

Miniature Photoelectric Absolute Encoder 10 Bit IP50

Miniature photoelectric absolute encoder SJ38 series 1024 steps per turn 10 bit IP50


Factory Encoder Production Capability

5000 pieces per month

-------- Production Line Capacity

50000 pieces per year

--------Actual Units Produced (Previous Year)


SJ38 absolute encoder Product Basis information

Items Basic parameters
Encoder type absolute encoder
External diameter 38mm
Thickness 28mm
Installation dimension 30mm diameter
Shaft length 13mm
Solid Shaft diameter 6mm D shape
Bit(steps) 5 bit;6 bit;7 bit;8bit;9bit;10 bit;11 bit;12bit
Supply voltage DC5V ; DC8-30V
GND not connect to encoder
starting torque less than 4.4x 10-3N.m
Intertia moment less than 1.5x 10-6kg.m2
Shaft load Radial 30N; Axial 20N
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)
Vibration(endure) Amplitude 0.75mm,10-55Hz,2 hours for three axis individually
Sock(endure) 49m/s2 ,11 ms three times for X,Y,Z direction individually
Shaft Material Stainless steel
Shell Material die cast aluminum
Cable length 1000mm(cable with shielding)
Allowable ripple ≤3%rms
Load Voltage ≤DC30V
Output code gray code
Precision 360/(resolution x 4)
Insulation strength AC500V 60s
Insulation resistance 10MΩ

Miniature Photoelectric Absolute Encoder 10 Bit IP50 0

About Absolute encoder

Absolute encoders have an encoder disc (sporting marks or slots) on a power-transmission shaft and a stationary pickup, but the disc marks output a unique code for each shaft position. Absolute encoders are either single-turn or multi turn encoders. Single turn absolute encoders can verify position within a single turn of the encoder shaft. This makes them useful for short travel situations. In contrast, multiple-turn absolute encoders are better for more complex or longer positioning situations.

Engineers generally classify absolute encoders by the number of their output bits, which correlates to the number of the disc’s tracks—and the maximum rotary angle the encoder registers. More after the jump.

Absolute rotary encoders have the advantage of non-volatile memory. That is, they do not lose track of positioning even when power fails. So even if something moves the machine shaft when power is off, an absolute encoder keeps track of the rotary-position change when the machine powers on again. Usually, electronics store this information as binary code, ideally Gray binary code. Absolute rotary encoders can operate point-to-point as well. They are useful in situations where safety is a concern, because they position whenever machines power on. Immunity to electoral noise is another benefit. One caveat: absolute rotary encoders are generally more expensive than incremental encoders. However, the cost of absolute encoders has steadily decreased over the last decade, and that’s driven steady increase of their use.



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