Technical Parameter

Item	Specifications
Step Angle Accuracy	±5%
Resistance Accuracy	±10%
Inductance Accuracy	±20%
Temperature Rise	80K Max.
Ambient Temperature	-20℃~+50℃
Insulation Resistance	100MΩMin.@ 500VDC
Dielectric strength	One minute C @250VAC∙5mA Max.
Shaft Radial Play	0.06Max.@450g
Shaft Axial Play	0.08Max.@100g

 

Technical Specification

Model No.	Polar	Rated Voltage	Current/ Phase	Resistance/ Phase	Inductance/ Phase	Holding Torque		# of Leads	Rotor inertia	weight	Body Length
Â	Â	V	A	Ω	mH	oz-in	kgf · cm	Â	g · cm2	kg	mm
20H048H-0604	Bipolar	8.1	0.6	13.5	7.2	6.7	0.48	4	4	0.11	48

 

 

Pull Out Torque Curve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAQ

Q: What is the difference between synchronous and asynchronous stepper motors?

A: Synchronous stepper motors offer accurate and precise motion synchronized with control pulses, while asynchronous stepper motors may experience slight deviations from the desired motion due to their inherent design. The choice between the two types depends on the specific requirements of the application and the level of accuracy needed.

 

Q: What are the advantages of stepper motors in open-loop systems?

A: Stepper motors offer distinct advantages in open-loop systems due to their inherent characteristics. They simplify control setups by not requiring feedback devices, reducing system complexity and cost. In open-loop configurations, stepper motors provide accurate and repeatable positioning for a wide range of applications. Their step-by-step movement allows for precise control without the need for complex algorithms. Additionally, stepper motors deliver holding torque even when stationary, ensuring stability. While closed-loop systems offer enhanced accuracy, open-loop stepper systems remain a popular choice for applications where simpler control, cost-efficiency, and reliable positioning are paramount.

 

Q: What are the roles of the stepper motor in the 3D printer?

A: Stepper motors in 3D printers enable precise control over movement, layering, and material flow, which are essential for producing high-quality and accurate 3D printed objects. They contribute to the repeatability and accuracy of the printing process, making them a critical component of 3D printer mechanics.

 

Q: What certifications do you have?

A: We hold ISO9001 and ISO14001 certifications, ensuring that our manufacturing processes adhere to international standards for quality management and environmental management. Additionally, all of our motors are CE-certified, meeting the necessary European safety, health, and environmental protection requirements.

 

http://www.sitmotors.com/