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42mm Nema 17 12V Dc 70 Oz.In Hybrid Stepper Motor For 3D Printers JK42HS48

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42mm Nema 17 12V Dc 70 Oz.In Hybrid Stepper Motor For 3D Printers JK42HS48

Country/Region	china
City & Province	changzhou jiangsu
Categories	Electronic & Instrument Enclosures

Product Details

42mm Nema17 12V dc 70 oz.in hybrid Stepper Motor for 3D printers JK42HS48

1) Product Description and images

There are many structural forms and classification methods of stepper motors, which are generally divided into three types according to the excitation mode: reluctance type, permanent magnet type and mixed magnet type; According to the number of phases, it can be divided into single-phase, two-phase, three-phase and multi equal forms.
The running performance of stepping motor is closely related to the control mode. From the perspective of its control mode, it can be divided into the following three categories: open-loop control system, closed-loop control system and semi closed-loop control system. Semi closed loop control system is generally classified as open loop or closed loop system in practical application.

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	Detent Torque	Rotor Inertia	Weight
Model No.	( °)	(L)mm	A	Ω	mH	kg.cm	No.	g.cm	g.cm2	Kg
JK42HS25-0404	1.8	25	0.4	24	36	1.8	4	75	20	0.15
JK42HS28-0504	1.8	28	0.5	20	21	1.5	4	85	24	0.22
JK42HS34-1334	1.8	34	1.33	2.1	2.5	2.6	4	120	34	0.22
JK42HS34-0406	1.8	34	0.4	24	15	1.6	6	120	34	0.22
JK42HS34-0956	1.8	34	0.95	4.2	2.5	1.6	6	120	34	0.22
JK42HS40-0406	1.8	40	0.4	30	30	2.6	6	150	54	0.28
JK42HS40-1684	1.8	40	1.68	1.65	3.2	4.2	4	150	54	0.28
JK42HS40-1206	1.8	40	1.2	3	2.7	2.9	6	150	54	0.28
JK42HS48-0406	1.8	48	0.4	30	25	3.1	6	260	68	0.35
JK42HS48-1684	1.8	48	1.68	1.65	2.8	5.0	4	260	68	0.35
JK42HS48-1206	1.8	48	1.2	3.3	2.8	3.17	6	260	68	0.35
JK42HS60-0406	1.8	60	0.4	30	39	6.5	6	280	102	0.5
JK42HS60-1704	1.8	60	1.7	3	6.2	7.3	4	280	102	0.5
JK42HS60-1206	1.8	60	1.2	6	7	5.6	6	280	102	0.5
We provide customized service to add gearbox, encoder, brake and integrated driver.

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

Because of the wide application of stepper motors, more and more research has been done on the control of stepper motors. If the stepping pulse changes too fast during startup or acceleration, the rotor cannot follow the change of the power on signal due to inertia, resulting in locked rotor or out of step. When stopping or decelerating, the same reason may lead to over step. In order to prevent locked rotor, out of step and over step, and improve the working frequency, the stepping motor shall be controlled to increase and decrease speed.

The speed of the stepping motor depends on the pulse frequency, the number of rotor teeth and the number of beats. Its angular velocity is proportional to the pulse frequency and synchronized with the pulse in time. Therefore, when the number of rotor teeth and the number of running beats are constant, the required speed can be obtained as long as the pulse frequency is controlled. Since the stepping motor is started by its synchronous torque, the starting frequency is not high in order to avoid out of step. In particular, with the increase of power, the rotor diameter increases, the inertia increases, and the starting frequency and the maximum operating frequency may differ by as much as ten times.

The starting frequency characteristic of the stepping motor makes it impossible to directly reach the operating frequency when the stepping motor is started. Instead, there must be a starting process, that is, from a low speed to the operating speed. The operating frequency cannot be immediately reduced to zero when stopping, but there must be a high-speed gradual reduction to zero.