• Digital Code Rotary Switch
  • Digital Code Rotary Switch

Digital Code Rotary Switch


Product origin :Jilin,China

Delivery time :5 working days

Supply capacity : 5000 pcs per week

Digital Code Rotary Switch with multiple switching functions are applicable to the machinetool`s operation panel for axis selection ,feed rate and override ,etc.
This product is suitable for all kinds of NC processing machinery, NC automated machine, gauges. The knob pinion positioning, digital output, and the signal is stable and reliable. It is generally used for Numerical control panel`s mode transformation ,spindle override and feedrate override in the reliable control of CNC machine tools.

RDN series digital code rotary band switch is mainly applied in axis selection switch and override selection switch of NC 

machine tool in domestic market. The RD series band switch with excellent electronic parameters and comfortable feel 

have wide application in CNC Industrial machinery.

Model :RDN


● Miniaturization: 33.6 * 36.3mm

● Rear operating panel length 25mm

● Above 50,000 times guarantee

● The closed integration structure: oil-proof, dust-proof, water-proof

● Fewer wirings, time and effort saving

● Easy setting, transform screws position to adjust the settings

● Gold-plated double contacts ensure the stability and reliability.

● Five rotation angles:13.85°, 15°, 20 27°, .69°, 30°.

● Four digital modes: binary (positive and inverse) code, hexadecimal (positive and inverse) code (Error signal prevention)

● Firm and reliable, Knob strength:3N·m

● Waterproof grade: IP 40 non-waterproof; IP 65 waterproof

Basic Specifications:


Condition Specifications

Operating Temperature Range

Nonfreezing   -20°C—+70°C

Storage Temperature Range

Nonfreezing   -40°C—+70°C

Gyroscopic Moment

0.1~0.2N·m(1~2 kgf·cm)

Terminal Strength


Screw Strength


Knob Strength


Vibration Resistance 

Swing: 10-55-10Hz/min;Amplitude:1.5mm/each direction/2 hours

No abnormal appearance and structure found.

(meet electrical requirements)

Contact Resistance

DC+5V/1A Voltage Drop; 1kHz<20mV;<50mA

<100mΩ(initial value including conductor resistance)

Insulation Resistance

DC250V/ after a minute terminal-terminal


DC500V/after a minute terminal-FG


Voltage Resistance

AC250V/after a minute  terminal-terminal

No abnormal appearance and structure found.

AC1500V/after a minute terminal-FG

Rated Voltage

load resistance 



Mechanical Drawing:

Digital Code

Company Building

Roundss was founded in 2006. It is a professional rotary encoder manufacturer with 11000 sq factory. The headquarter is in 

Changchun, which is the photoelectric industry base of China. Roundss has 4 sales branches, 30 full-time sales staff and 18 

agents in China. We will provide the quality optical encoders and good service to customers in fast response.

Factory Show

Roundss has 11000 sq meter factory including machining workshop and dust free assembly workshop. The automatic 

assembly line was developed by Roundss, which is the first in encoder industry. We have 8 production lines: universal 

incremental encoders; absolute encoders; manual pulse generator; draw wire sensor; magnetic ring encoder; gear tooth

encoder; servo motor encoder; flexible couplings. We could provide 3000pcs encoders for one week. For every encoder

before leaving factory, it must pass two times of singal inspections.


All encoders passed CE certificate. Some encoders like MPG, handwheel are RoHs compliant. Roudss spends 6% of annual 

income on science and technology activities and R&D. Now we have got more than 40 national patents.

International Exhibitions

Each year, ROUNDSS attends around 10 international exhibitions, such as IMTS, JIMTOF, EMO, SIMTOS, SPS IPC Drives 

and so on. The rotary encoders are welcomed by customers around the world. Now encoder products have been exported 

to more than 50 countries.


Roundss has 12 agents around the world. Haas, Beijing-Fanuc and Bosch group are all our partners. Wide selection of 

encoder products is available. The incremental encoder and MPG are our star products. Roundss also supply the customized

encoder service. We welcome partners to visit our company to talk about cooperation details. 

Group Activity

ROUNDSS has about 150 employees. We pay attention to the growth of each partner, respect employees, care for employees,

and improve employees. Roundss group will devoted ourselves in encoder industry and supply the best rotary encoders to you!

Our Service


1. The questions about the encoder will be answered within 24 hours.

2. One-stop solution will offer to meet all your requirements on budget, designing and shipment.

3. We can offer the information of dealer in your market if you want to contact them directly.

4. Update the procession of manufacturing.

5. Warranty 18 months: Free replacement of defective products within 18 months.




Q1:Can I have a sample for testing?

A: Actually we have a very good price principle, when you make the bulk order then cost of sample will  be return to 

you. The price is the same for 1-30 sets including the sample

Q2:Can I add my logo on the encoder ?

A:Yes,OEM and ODM are available for us. But you should send us the trademark authorization letter.

Q3:How can i get the after-service?

A:We will send you the spare parts by free if the problems caused by us. If it is the men-made problems, we also send 

the spare parts,but you should pay for the repair fee and shipping cost.

Q4 :Do you have inspection procedures for encoder ?

A:100% self-inspection before packing

Q5:Can I have a visit to your factory before the order?

A: Sure,welcome to visit our factory.

Here is our factory address: No.1666, Ya’an Road, North Lake District, Chanchun, China

We can pick you up at the airport.


Please feel free to give your inquiry in the form below. We will reply you in 24 hours.
* Email :
Company :
  • Name :

  • Phone :

Message :

Privacy policy

close left right