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3D Printer K18 Incremental Optical Encoder 2.5mm Hollow Shaft Diameter

3D Printer K18 Incremental Optical Encoder 2.5mm Hollow Shaft Diameter

3D Printer K18 Incremental Optical Encoder 2.5mm Hollow Shaft Diameter

Product Details:

Place of Origin: Shanghai,China
Certification: CE,ISO9001
Model Number: K18 incremental encoder

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs encoder to start order
Price: negotiable
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
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Detailed Product Description
Encoder Type: Universal Encoder External diameter: 18mm
Hollow Shaft Diameter: 2.5mm Resolution: 250ppr - 1600ppr
Application: Small Robot , 3D Printers ,etc Output phase: Phase A,B,Z
Shaft Load: Radial 2N; Axial 2N IP Grade: IP40
High Light:

incremental type encoder


incremental position encoder

K18 incremental encoder NPN circuit 400 resolution rotary encoder for 3D printer


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.





  • 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.


3D Printer K18 Incremental Optical Encoder 2.5mm Hollow Shaft Diameter




Q:How to order our product ?


1).Please tell us the model and quantity and other request you need.

2).We make the PI for you.

3).After you confirm the PI, we arrange the order for you after receiving your payment.

4).After the goods finished, we send the goods out to you and tell you the tracking

5).We will track your goods until you receive the goods.

Q: What's your warranty ?

A: 18 months

Q: What's your shipment method?


We ship by Express, by air, by sea, by train. Normally we checked and compare, then
provide customer the most proper shipment method.

Q: What's about MOQ?

A: for First order MOQ=1pcs

Q: If i want to place order, what's the payment method you accept ?

A: We accept T/T, Paypal, Western union, L/C.

Q: If i want to place order, what's the process?

A: Thanks. You can send inquiry to us by alibaba, or send us by email, we will reply
within 24hrs.

Q:How long is the delivery time?

A:Normally, 5-10 days, The fastest delivery within 3-5 days.

Contact Details
Shanghai Hengxiang Optical Electronic Co., Ltd.

Contact Person: Manager

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