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20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor

20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor

20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor
20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor
Product Details:
Place of Origin: Jiangsu, China (Mainland)
Brand Name: Jkongmotor
Certification: CE, ROHS,ISO9001
Model Number: JK20HS42-0804
Payment & Shipping Terms:
Minimum Order Quantity: 3-10pcs
Price: US$7.5~US$12
Packaging Details: with export carton . big quantity with pallet
Delivery Time: For samples , 7-15 days / For batch , 15-25days
Payment Terms: T/T , paypal , Western Union, L/C
Supply Ability: 100000pcs/month
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Detailed Product Description
Product Name: Nema8 Stepper Motor Model Number: JK20HS42-0804
Shaft: Single Or Double Leads: 4
Current: 0.8A Holding Torque:
Motor Length: 42mm Step Angle: 1.8°
Inductance: 1.5mH Shaft Diameter: 4mm
Weight: 0.09kg
High Light:

0.8A Hybrid Stepper Motor


Nema 8 micro Stepper Motor


20mm Nema 8 Stepper Motor

20mm micro Nema 8 Bipolar Stepper Motor 0.8A


A hybrid stepper motor has an axially magnetized rotor, meaning one end is magnetized as a north pole, and the other end a south pole. Toothed rotor cups are placed on each end of the magnet, and the cups are offset by half of a tooth pitch.


1.Genaral Specification:

 Item  Specifications
 Step Angle  1.8°
 Temperature Rise  80℃max
 Ambient Temperature  -20℃~+50℃
 Insulation Resistance  100 MΩ Min. ,500VDC
 Dielectric Strength  500VAC for 1minute
 Shaft Radial Play  0.02Max. (450g-load)
 Shaft Axial Play  0.08Max. (450g-load)
 Max. radial force  28N (20mm from the flange)
 Max. axial force  10N


2.Electrical Specification:

Model No.

Step Angle

Motor Length







Holding Torque

# of Leads



  ( °) (L)mm A Ω mH No. Kg
JK20HS30-0604 1.8 30 0.6 6.5 1.7 180 4 0.06
JK20HS33-0604 1.8 33 0.6 6.5 1.7 200 4 0.07
JK20HS38-0604 1.8 38 0.6 10 5.5 300 4 0.08
JK20HS42-0804 1.8 42 0.8 5.4 1.5 400 4 0.09


Matching Stepper motor Driver: JK0220


3.Dimensions: (Unit=mm)

20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor 0



20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor 1

20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor 2

20mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor 320mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor 420mm Micro Nema 8 300g.Cm 0.8A Hybrid Stepper Motor 5


5.Our service

We do also manufacture other products,such as

Nema8 , nema11 , nema14 , nema17 , nema23 , nema24 , nema34 , nema42 , nema52 stepper motor;

Nema11 , nema17 , nema23 , nema24 , nema34 stepper motor with gearbox.

Linear stepper motor , closed loop stepper motor , stepper motor with brake , stepper motor sriver;

42mm , 57mm , 60mm , 80mm , 86mm , 110mm ,  130mm brushless dc motor;

Bldc motor with gearbox , bldc motor driver;

Brush dc motor , spindle motor , ac servo motor kit , couplings , pulley , power supply and so on.


6.Advantages of Hybrid Stepper Motor

The advantages of the Hybrid Stepper Motor are as follows:-

  • Low cost for control achieved
  • High torque at startup and low speeds
  • Ruggedness
  • Simplicity of construction
  • Can operate in an open loop control system
  • Low maintenance
  • Less likely to stall or slip
  • Will work in any environment
  • Can be used in robotics in a wide scale.
  • High reliability
  • The rotation angle of the motor is proportional to the input pulse.
  • The motor has full torque at standstill (if the windings are energized)
  • Precise positioning and repeatability of movement since good stepper motors have an accuracy of 3–5% of a step and this error is non-cumulative from one step to the next.
  • Excellent response to starting/stopping/reversing.
  • Very reliable since there are no contact brushes in the motor. Therefore, the life of the motor is simply dependent on the life of the bearing.
  • The motors response to digital input pulses provides open-loop control, making the motor simpler and less costly to control.
  • It is possible to achieve very low-speed synchronous rotation with a load that is directly coupled to the shaft.
  • A wide range of rotational speeds can be realized as the speed is proportional to the frequency of the input pulses.


As the stepper motor are digitally controlled using an input pulse, they are suitable for use with computer controlled systems.

They are used in numeric control of machine tools.

Used in tape drives, floppy disc drives, printers and electric watches.

The stepper motor also use in X-Y plotter and robotics.

It has wide application in textile industries and integrated circuit fabrications.

The other applications of the Stepper Motor are in spacecrafts launched for scientific explorations of the planets etc.

These motors also find a variety of commercial, medical and military applications and also used in the production of science fiction movies.

Stepper motors of microwatts are used in the wrist watches.

In the machine tool, the stepper motors with ratings of several tens of kilowatts is used.

Contact Details

Contact Person: Stacy

Tel: +8613776803450

Fax: 86-519-88713769

Send your inquiry directly to us (0 / 3000)


Address: Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162

Factory Address:Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162