• Spindle Motor Encoder Manufacturers Roundss
  • Spindle Motor Encoder Manufacturers Roundss
  • Spindle Motor Encoder Manufacturers Roundss
  • Spindle Motor Encoder Manufacturers Roundss
  • Spindle Motor Encoder Manufacturers Roundss

Spindle Motor Encoder Manufacturers Roundss


Product origin :Jilin, China

Delivery time :5 working days

Supply capacity :5000 pcs per week

ROUNDSS Manufacturers Spindle Motor Encoder is an optical bearingless spindle encoder provide the processing efficiency of machine tools up to 10000 rpm ,adjustable axial mounting range, easy mounting, stable installation construction and completely synchronous with machine tool spindle without synchronous pulley.

Model:STS series


ROUNDSS as China the 2nd largest encoder manufacturer, supply a complete STS series of optical bearingless spindle 

encoder products from 1024PPR to2014PPR and customized the different size of the sensor.You will get the best product 

you want. 

ROUNDSS Manufacturers Spindle Motor Encoder characteristics:

● Long lifetime

● Low price

● High quality

● Resist high temperature 

● Easier installation

● Three times of vibration than regular encoder

Basic Specifications:

Electrical Specifications
Supply VoltageDC5V±0.25V
Output SignalLine Driver ( AM26C311)
Current Requirement≤80mA
Frequency Response100kHz
High-level Output Voltage≥2.5V
Low-level Output Voltage≤0.5V
Rise Time≤200 ns
Fall Time≤200 ns
Resolution2048 PPR
Mechanical Specifications
Max. Speed8000 RPM
Radial Load (Max.)100N
Axial Load (Max.)50N
Starting Torque5X1O-3 N·m
Environmental Specifications
Storage Temperature-40℃- +80℃
Operating Temperature-30℃- +70℃
Humidity30-85% (No condensation)
Protection ClassIP64

Mechanical Drawing:


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.


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