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2 Phase 1.8 Degree Nema8 20mm Stepper Motor for Medical Equipment

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2 Phase 1.8 Degree Nema8 20mm Stepper Motor for Medical Equipment

Country/Region	china
City & Province	changzhou jiangsu
Categories	Switches

Product Details

2 phase 1.8 degree Nema8 20mm Stepper Motor for medical equipment

1) Product Description and images

The stepper motor is made of high-quality cold-rolled steel sheets and high-temperature permanent magnets. It has the characteristics of low temperature rise and high reliability. Because it has good internal damping characteristics, it runs smoothly without obvious vibration area. It can meet the needs of different industries and different environments.
Determine the requirements for positioning accuracy and vibration of the stepping motor: determine whether to subdivide and how many subdivisions are required. The driver is selected according to the current, subdivision and supply voltage of the motor.

2) Product DataSheet

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
Electrical Specifications:
Model No.	Step Angle	Motor Length	Current /Phase	Resistance /Phase	Inductance /Phase	Holding Torque	# of Leads	Weight
	( °)	(L)mm	A	Ω	mH	g.cm	No.	Kg
JK20HS30-0604	1.8	30	0.2	18	3.2	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
Above only for representative products, products of special request can be made according to the customer request.

3) Product Drawing

4) Other Products

Stepper Motor Series
Motor series	Phase No.	Step angle	Motor size	Motor length	Holding torque
Nema 8	2 phase	1.8 degree	20x20mm	30~42mm	180~300g.cm
Nema 11	2 phase	1.8 degree	28x28mm	32~51mm	430~1200g.cm
Nema 14	2 phase	1.8 degree	35x35mm	27~42mm	1000~2000g.cm
Nema 16	2 phase	1.8 degree	39x39mm	20~44mm	650~2800g.cm
Nema 17	2 phase	1.8 degree	42x42mm	25~60mm	1.5~7.3kg.cm
Nema 23	2 phase	1.8 degree	57x57mm	41~112mm	0.39~3.1N.m
Nema 24	2 phase	1.8 degree	60x60mm	56~111mm	1.17~4.5N.m
Nema 34	2 phase	1.8 degree	86x86mm	67~155mm	3.4~12.2N.m
Nema 42	2 phase	1.8 degree	110x110mm	99~201mm	11.2~28N.m
Nema 52	2 phase	1.8 degree	130x130mm	173~285mm	13.3~22.5N.m

We supply Stepper motor, Brushless DC motor, DC Brushed motor, Driver, Spindle motor,

AC servo motor, Coreless motor, Gearbox reducer, Power supply, ball screw, linear guide, and parts.

5) Product information and advantages

Hybrid stepping motor combines the advantages of reactive type and permanent magnet type. The stator is provided with multi-phase windings, the rotor is made of permanent magnet materials, and the rotor and stator are provided with multiple small teeth to improve the step torque accuracy. Its characteristics are large output torque, good dynamic performance and small step angle, but its structure is complex and its cost is relatively high. According to the winding on the stator, there are two-phase, three-phase and five equal series.

The most popular is the two-phase hybrid stepping motor, accounting for more than 97% of the market share. The reason is that it is cost-effective and has good effect when equipped with a subdivision driver. The basic step angle of the stepper motor is 1.8 ° / step. When equipped with a half step driver, the step angle of the stepper motor is reduced to 0.9 °. When equipped with a subdivision driver, the step angle can be subdivided to 256 times (0.007 ° / microstep).

It is recommended that the user select the hardware subdivision type driver when selecting the stepping motor driver, because the hardware subdivision can be used for accurate positioning, while the software subdivision can only reduce the vibration noise of the motor, and cannot be used for accurate positioning.