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High Thrust 20mm Stepper Motor

Product Details

Place of Origin: China

Brand Name: Vic-Tech

Certification: ROHS

Model Number: VSM20-LINEAR

Payment & Shipping Terms

Minimum Order Quantity: 1

Price: 7~40usd

Packaging Details: EPE inner packaging, paper carton outer packaging,.For bulk products can be palletized for easy delivery and proper protection of products

Delivery Time: 15days

Payment Terms: L/C, T/T

Supply Ability: 100000 pcs per month

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Highlight:

High Thrust 20mm Stepper Motor

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OEM 20mm Stepper Motor

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ODM 20mm Stepper Motor

Type:
Linear Stepper Motor
Phase:
2phase
Step Angle(degrees):
7.5 Degree/15 Degree
Voltage:
5-12V CD
Frame Size:
Dia 20mm
Lead Pith:
0.3048 ~4.0 8 Types Optional
Stroke:
14mm~31mm
Lead Running:
Captive Type
Type:
Linear Stepper Motor
Phase:
2phase
Step Angle(degrees):
7.5 Degree/15 Degree
Voltage:
5-12V CD
Frame Size:
Dia 20mm
Lead Pith:
0.3048 ~4.0 8 Types Optional
Stroke:
14mm~31mm
Lead Running:
Captive Type
High Thrust 20mm Stepper Motor

High Thrust 20mm 2 Phase 4 Lead Linear Stepper Motor Fixed Shaft

20mm captive linear stepper with 4 lead wires:

 

This type of motor is a claw-pole permanent magnet stepping motor, so it first has the common parameter characteristics of stepping motors. For example: basic size, step angle, number of phases, resistance, maximum no-load starting frequency and other indicators.

In terms of its internal structure, the rotor center is made of an integrated nut, the motor shaft is made of a lead screw, and the lead screw is matched with the nut. In this way, when the motor rotates, the output shaft does not rotate, but moves back and forth according to the direction of rotation, so it is called a linear motor.

Due to the structure, this motor has several key parameters, which are introduced separately below.
Please refer to when choosing a product. After determining these parameters, the motor can generally be selected accurately (see FAQ at the end of the page). If customers have any questions in the selection process, customers can get in touch with our company's service personnel, and we will do our best to assist customers.

 

20mm linear stepper motor parameter sheet:

 

 

PRODUCT NAME 20mm linear stepper motor
MODEL VSM20-linear
Step angle 7.5 degree/15 degree
MAX. STARTING FREQUENCY 1000 PPS min. (at 24VDC constant current)
MAX. SLEWING FREQUENCY 1200  PPS min.  (at  24VDC constant current)
INSULATION CLASS CLASS E FOR COILS
INSULATION STRENGTH 3.0mA (max.)
INSULATION RESISTENCE 1 MΩ (DC 100 V)
OPERATING TEMPERATURE RANGE -10~+60 ℃
OEM & ODM SERVICE AVAILABLE

 

 

20mm linear stepper motor drawing:

High Thrust 20mm Stepper Motor 0

 

 

20mm linear stepper motor thrust curve:

 

High Thrust 20mm Stepper Motor 1

Product display:

 

High Thrust 20mm Stepper Motor 2

High Thrust 20mm Stepper Motor 3

 

 

FAQ  for 20mm linear stepper motor:

 

 

1. What is the step angle?

Step angle refers to the angle at which the rotor rotates after the stepper motor receives the external drive signal. Generally refers to the full-step drive state. The step angle is determined by the number of poles of the stepper motor rotor. The angle can be based on 360/(2*PP is the number of rotor poles).

 

2. What is a lead pitch?

Screw lead (L mm) refers to the distance the screw (or nut) moves when the screw makes one revolution. It is an important parameter of the screw. It determines the movement speed of the screw when the motor speed is the same. Of course, it also determines the process of converting motor torque into thrust. There is usually an empirical formula to calculate the conversion of torque (T g.cm) to thrust (F gf): F=2πT/L*10*η η is the conversion efficiency, which usually has a lot to do with the straight line of the screw profile and screw The smoothness of the contact surface of the screw and nut is generally between 0.2 and 0.4.

 

3. What is step size?

The step size is the distance that the lead screw (or nut) moves axially for each step of the linear motor. The product of this value and the drive frequency is the speed at which the screw (or nut) moves at the drive frequency. The step length is determined by the screw lead (L mm) and the motor step angle (A degrees). The basic calculation formula is: step=L/(360/A)

For example: a 7.5-degree step angle linear motor uses a lead screw L of 0.6096, then the step size is 0.6096/(360/7.5)=0.0127, and the step size can also be considered as the motion distance resolution motor (or position control accuracy) of linear motion. 

 

4. What factors will affect the thrust?

The first is the power of the motor itself, which is the most fundamental factor affecting the thrust and push-pull speed of the motor. Therefore, when space allows, the larger the allowable volume of the motor, the greater the thrust and push-pull speed.

In the case of a certain space, the basic power of the motor does not change much. As for the change of the resistance value, it is only to maintain the matching with the driving power supply, voltage and other factors. The power consumed and output by the motor will not change substantially. Of course, under the premise of satisfying usage, reducing consumption is another matter.

 

In addition to the above factors, after fixing the size of the motor, if you want to obtain a larger thrust, generally consider the following four aspects:

4.1. Use a motor with a smaller step angle (currently we have 15 and 7.5 degree options)

4.2. Use screws with a smaller pitch, the current minimum pitch is 0.3048mm

4.3. Use a lower drive frequency, because the thrust of the stepper motor will decrease significantly as the frequency increases. It is generally recommended to be 200~600pps, and the motor thrust will be greater at 200pps.

4.4. Adopt constant current and micro-step drive mode, which can maximize the efficiency of the motor and achieve greater thrust.

 

Of course, the factor of increasing the thrust will reduce the speed of the push and pull, so in the end, it is necessary to comprehensively test the overall requirements of the push and pull force and speed, or the mechanism of the load situation in different operating stages is different, and the use of different drive control schemes will be a very perfect scheme . ideas and practices.

 

Product packaging diagram:

High Thrust 20mm Stepper Motor 4