Shanghai Hengxiang Optical Electronic Co., Ltd. 86-21-54613487
K18 Hollow Shaft Electric Motor Encoder , A Phase Small Rotary Encoder

K18 Hollow Shaft Electric Motor Encoder , A Phase Small Rotary Encoder

  • High Light

    hollow shaft rotary encoder


    incremental position encoder

  • Encoder Type
    Universal Encoder
  • External diameter
  • Hollow Shaft Diameter
  • Resolution
    250ppr - 1600ppr
  • Installation Dimension
    R11mm, Spring Plate 18T22
  • Output phase
    Phase A,B,Z
  • Shaft Load
    Radial 2N; Axial 2N
  • Cable length
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
    K18 mini 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

K18 Hollow Shaft Electric Motor Encoder , A Phase Small Rotary Encoder

K18 hollow shaft incremental encoders 360 resolution thickness 15.3mm A phase mini encoder


Quick introduction for K18 series

Encoder type:Incremental encoder

External diameter:18mm


Installation dimension:R11mm, spring plate 18T22

Hollow shaft diameter:2.5mm

Resolution :250;256;360;400;500;512;720;800;1000;1024;1440;1600

Output phase:Phase A,B,Z

Supply voltage:DC5V ; DC8-30V


K18 mini hollow shaft encoder Characteristics

Items Basic parameters
Outlet type Cable out from side
  Cable out from back
Output mode Collector open circuit output(NPN &PNP)
Protection grade IP50
Cable length 1M (cable length could be added appropriately by
  require, but it need payment individually)
Consumption current 50mA MAX
Top response frequency 100KHZ
Rise/ Fall time 100nsec Max
starting torque less than 5x 10-4 N.m
Intertia moment less than 0.3x 10-6kg.m2
Shaft load Radial 2N; Axial 2N
Top REV 3000r rpm
Environmental temperature Operating:-10 ~+70°;storage:-15 ~+75°
Environmental humidity Operating and storage: 35-85%RH(noncondensing)
Vibration(endure) Amplitude 0.75mm,10-50Hz,1 hours for three axis individually
Sock(endure) 49m/s2 ,three times for X,Y,Z direction individually
Shaft Material Stainless steel
Shell Material aluminum alloy
Cable length 150mm
Certification CE
package Carton box
Net weight About 20g (with package)



Signal Circuit of encoder reference to K18 Series encoder

1. The NPN Open Collector -- The NPN Open Collector(NPN) is an interface based on an output circuit with an NPN transistor.

An open collector is the unconnected collector connection of an NPN transistor, whose emitter is connected to earth and whose collector is connected to the output.

2. PNP output

The PNP output is an interface based on an output circuit with a PNP transistor.


K18 Hollow Shaft Electric Motor Encoder , A Phase Small Rotary Encoder 0



  • Petrochemical industry
  • Pharmaceutical industry
  • Food industry
  • Aviation and aerospace industry
  • Architectural decoration industry
  • Oil and gas industry
  • FFS machine
  • VFFS machine
  • Packing machinery
  • Capsule filling machine
  • Pharmaceutical machine
  • VVVF motor
  • Drawing machine
  • VFD
  • Inverter
  • Variable frequency driver
  • Embroidery machine
  • Elevator


Factory Encoder Production Capability

5000 pieces per month

-------- Production Line Capacity

50000 pieces per year

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


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.