8mm Mini Micro Stepper Motor 2 phase 18 degree step angle

Short Description:

Model No.  SM08133
Motor type  micor stepper motor
Driving voltage  V DC
Step angle  18°/STEP
No. of phases  2 phases (bipolar)
Coil resistance  20Ω±10% ohm/phase(20℃)
Minimum order quantity  1unit

Product Detail

Product Tags

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A stepper motor is a motor that converts electrical pulse signals into corresponding angular
displacement or linear displacement. They have multiple coils that are organized in groups called
"phases". By energizing each phase in sequence, the motor will rotate, one step at a time.
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


Model No. SM08133
Driving voltage 3.3V DC
Coil resistance 40Ω±7%/phase
No. of phase 2-2 phases
Step angle 18°/step
Max.starting frequency 1000pps min.(AT 3.3V DC)
Max.slewing frequency 1200pps min.(AT 3.3V DC)
Pull in torque 0.8g min(AT 3.3V 900PPS)
Pull out torque 1.0g min(AT 3.3V 900PPS)
Drive mode Bipolar drive
Insulation class Class e for coils
Insulation strength 100v ac for one second
Insulation resistance 1 MΩ(DC 100V)
Operating temperature range -0~+55℃

Design drawing

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About miniature stepper motor torque diagram

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Example of the same type

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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.
For linear stepper motors, they are widely used in:
Medical device
Camera equipment
Valve control system
Test instrument
3D printing
Textile machinery
Industrial control
Air conditioning
CNC machine
and so on

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Customization service

Motor’s design can be adjusted based on customer’s requirement including:
Motor’s diameter: we have 6mm, 8mm, 10mm, 15mm and 20 mm diameter motor
Coil resistance/ rated voltage: coil resistance is adjustable, and with higher resistance, motor’s rated voltage is higher.
Bracket design/ lead screw length: if customer want the bracket to be longer/short, with special design such as mounting holes, it’s adjustable.
PCB + cables + connector: PCB’s design, cable length and connector pitch are all adjustable, they can be replaced into FPC if customers require.

Lead Time and Packaging Information

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

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Shipping Method

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)


1.Are you a manufacturer?
Yes, we are a manufacture, and we produces mainly stepper motors.

2.Where is your factory location? Can we visit your factory?
Our factory is located in Changzhou, Jiangsu. Yes, you are very welcome to visit us.

3.Can you provide free samples?
No, we don’t provide free samples. Customers won’t treat free samples fairly.

4.Who pays for shipping cost? Can I use my shipping account?
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.

5.What’s you MOQ? Can I order one motor?
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.

6.We are developing a new project, do you provide customization service? Can we sign a NDA contract?
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.

7.Do you sell drivers? Do you produce them?
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

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