20BY45
Vic-Tech
20mm micro stepper motor
6V DC
AVAILABLE
18
1 unit
20mm
Rohs
Product Description
This permanent magnet stepper motor is 20mm in diameter, has a torque of 60gf.cm, and can reach a maximum speed of 3000rpm.
This motor can also be added to the gearbox, the motor step angle is 18 degrees, that is, 20 steps per revolution. When the gearbox is added, the motor deceleration effect rotation angle resolution can reach 0.05~6 degrees. Applicable to many needs, precise control of the rotation position.
The coil resistance of the motor is 9Ω/phase, and it is designed for low drive voltage (about 5V DC). If the customer wants to drive the motor at higher voltage, we can adjust the coil resistance to match it.
In addition, there are two M2 screws on the cover of the motor, they are used to fix with the gear box. Customers can also use the screws to fix this motor to other parts.
Its connector is 2.0mm pitch (PHR-4), and we can change it to another type if the customer wants to.
Therefore, this product can be used where precise position control is required. It can be generally used in medical equipment, printers, automation equipment, robots, etc.
Parameters
| Motor type | 20mm Micro stepper motor |
| No.of Phase | 2 Phase |
| Step Angle | 18°/step |
| Winding Resistance（25℃） | 10Ωor 31Ω/phase |
| Voltage | 6V DC |
| Driving mode | 2-2 |
| Max starting frequency | 900Hz(Min) |
| Max response frequency | 1200Hz(Min) |
| Pull-out torque | 25g.cm(600 PPS) |
Design drawing
Customisable
Our micro stepper motors generally have 18 degrees step angle.(full step driving)
That means it takes 20 steps to rotate one turn.
Motor’s step angle is related to internal stator’s design.
Stepper motor is speed is determined by driving frequency, and it has nothing to do with load (unless it’s losing steps).
Due to high precision speed control of stepper motors, with a driver controlled stepping you can achieve very precise positioning and speed control. For this reason, stepper motors are the motor of choice for many precision motion control applications.
We have micro stepper motors with different diameters, and motor’s torque is related to its size.
Here is relationship between motor’s diameter and torque(with suitable running frequency, at rated voltage):
6mm motor: About 1 g*cm
8mm motor: About 3g*cm
10mm motor: About 5 g*cm
15mm motor: About 15 g*cm
20mm motor: About 40 g*cm
Application
Motor’s speed is determined by driving frequency, and it has nothing to do with load (unless it’s losing steps).
Due to high precision speed control of stepper motors, with a driver controlled stepping you can achieve very precise positioning and speed control. For this reason, stepper motors are the motor of choice for many precision motion control applications.
Our micro stepper motors generally have 18 degrees step angle.(Full step driving)
That means it takes 20 steps to rotate one turn.
Motor’s step angle is related to internal stator’s design.
We have micro stepper motors with different diameters, and motor’s torque is related to its size.
Here is relationship between motor’s diameter and torque(with suitable running frequency, at rated voltage):
6mm motor: about 1 g*cm
8mm motor: about 3g*cm
10mm motor: about 5 g*cm
15mm motor: about 15 g*cm
20mm motor: about 40 g*cm
Since steppers move in precise repeatable steps, they excel in applications requiring precise
positioning, by the number of steps the motor moves.
Precise increments of movement also allow for excellent control of rotational speed for process
automation and robotics. The rotational speed is determined by the frequency of the pulses.
With control of the drive, the motor has lock function (there is current through motor windings, but
the motor does not rotate), and there is still a holding torque output.
The stepper motor has no brushes, and does not need to be commutated by brushes like a brushed
DC motor. There is no friction of the brushes, which increases the service life, has no electric sparks, and reduces electromagnetic interference.
Lead time for samples:
Standard motors in stock: Within 3 days
Standard motors not in stock: Within 15 days
Customized products: About 25~30 days (based on complexity of customization)
Lead time for building a new mold: Generally about 45 days
Lead time for mass production: Based on order quantity
Samples are packed in foam sponge with a paper box, shipped by express
Mass production, motors are packed in corrugated cartons with transparent film outside. (shipping by air)
If shipped by sea, product will be packed on pallets
On samples and air shipping , we use fedex/TNT/UPS/DHL. (5~12 days for express service)
For sea shipping, we use our shipping agent, and ship from shanghai port. (45~70 days for sea shipping)
Yes, we are a manufacture, and we produces mainly stepper motors.
Our factory is located in changzhou, jiangsu. Yes, you are very welcome to visit us.
No, we don’t provide free samples. Customers won’t treat free samples fairly.
Customers pay for shipping cost. We will quote you shipping cost.
If you think you have cheaper/more convenient shipping method, we can use you shipping account.
We don’t have MOQ, and you can order only one piece sample.
But we recommend you to order a little bit more, just in case the motor is damaged during your testing, and you can have a back-up.
We have over 20 years of experience in stepper motor industry.
We have developed many projects, we can provide full set customization from design drawing to production.
We are confident we can give you few advice/suggestions for your stepper motor project.
If you are worrying about confidential issues, yes, we can sign a NDA contract.
Yes, we do sell drivers. They are only suitable for temporary sample test, not suitable for mass production.
We do not produce drivers, we only produce stepper motors
