
Pulse width modulation |
Low noise during operation, high efficiency, and low maintenance cost which better enhance the service life of DC motor. |
Four-quadrant regenerative operating mode |
Regenerative braking function |
It doesn't need external reversing contactor and will not result in electric motor parts or other components overheating or burning down. |
Enable/ reversing terminal |
To realize certain functions by using simple passive switching value or transistor collector open circuit. Status indicator light |
Power supply indicator and over-current alarm indicator can provide the visible status of speed controller. Output current setting function (amplitude limiting) |
Torque compensate function |
Double closed-loop PI regulation(current, voltage) |
Standard analog quantity signal control Analog quantity: 0-5V 0-10V or controlled by potentiometer |
A broader scope of input voltage:20-55V |
Speed ratio | 1:100 |
Control potentiometer | 10K/2W |
Input voltage | 20-55V VDC |
Output current | 0-20A (amplitude limiting) |
Input impedance | ≥50KΩ |
Revolving speed (standard precision %) | 1 % |
Starting/braking time | 1-20 S |
Environment temperature | -10ºC~+50ºC |
Environment humidity | ≤80RH(no moisture condensation)(relative humidity) |
Insulation and voltage resistance | 1100V DC 1 minute |
Insulation resistance | > 20 MΩ |
Leakage current | ≤ 0.9 mA |
Weight | 0.15Kg |



Jinan lanjiu Electronic Technology Co., Ltd. was founded in 2017. The company is located in Huaiyin District, Jinan City, the charming city known as "Spring City", close to Jinan west railway station, with convenient transportation. The company mainly engaged in high and low voltage permanent magnet DC motor, high and low voltage BLDCM, high and low voltage AC and DC servo motor, and its supporting high and low voltage DC motor drivers, AC and DC servo motor drivers and other high-quality products for industrial fields. The company always adheres to the business philosophy of "service first, quality first, customer first, and win-win cooperation", and has been committed to providing customers with high-quality products and services.

Q:What's the lead time for regular order?
longer based on different model, period and quantity.
A: For all of our motors, they are customized based on different requirements like lifetime, noise, voltage, and shaft etc. The price also varies according to annual quantity. So it's really difficult for us to provide a price list. If you can share your
detailed requirements and annual quantity, we'll see what offer we can provide.
Q: Is it possible for you to develop new motors if we can provide tooling cost?
A:Yes. Please kindly share the detailed requirements like performance, size, annual quantity, target price etc. Then we'll make our evaluation to see if we can arrange or not.
Q: Can I get some samples?
A: It depends. If only a few samples for personal use or replacement, I am afraid it'll be difficult for us to provide because all of our motors are custom made and no stock available if there is no further needs. If just sample testing before the official order and our MOQ, price and other terms are acceptable, we'd love to provide samples.