Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
Binary Output Mechanical Rotary Encoder 2048ppr 11 Bits

Binary Output Mechanical Rotary Encoder 2048ppr 11 Bits

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    Binary Output Mechanical Rotary Encoder


    Mechanical Rotary Encoder 2048ppr


    Single Turn Absolute Encoder 11 Bits

  • Installation Dimension
    30mm Diameter
  • Shaft Length
  • Solid Shaft diameter
    6mm D Shape
  • Count Direction
    Counterclockwise Outside Control Direction
  • Interface
    NPN Low Level Effective /NPN High Level Effetive
  • Protection grade
    IP50 ; IP65
  • Shaft Load
    Radial 30N; Axial 20N
  • Top REV
    3000RPM ;IP65≤2000 RPM
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    Mechanical rotary 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

Binary Output Mechanical Rotary Encoder 2048ppr 11 Bits

Mechanical rotary encoder SJ38 series absolute encoder Binary output 2048ppr 11 bits


Some part number of SJ38 encoder

SJ38-T5N 32 DC5C

SJ38-Q5 NH32C DC24V




SJ38-Q7NH128 DC8-30


SJ38-QE8NH256 D



SJ38 series encoder Product Basis information

Items Basic parameters
Installation dimension 30mm diameter
Shaft length 13mm
Solid Shaft diameter 6mm D shape
Outlet type Radial cable
  Radial socket
  axial cable with plug
  Radial cable with plug
Count direction counterclockwise
  outside control direction
Interface NPN low level effective
  NPN high level effetive
Consumption current 100mA MAX
Top response frequency 100KHZ
Allowable ripple ≤3%rms
Load Voltage ≤DC30V
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
Solid Shaft diameter 6mm D shape
Bit(steps) 5 bit;6 bit;7 bit;8bit;9bit;10 bit;11 bit;12bit

Binary Output Mechanical Rotary Encoder 2048ppr 11 Bits 0


Q: What’s your MOQ?

A: 1pcs

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.


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


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


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.