New Generation NEMA 8 Stepper Motor

Nema 8 (口20mmX20mm), 2-phase, 1.8° • Innovation round flange, motor body diameter is only Φ22mm
• 27%-40% more holding torque, up to 8.5 oz-in (60 mNm)
• 18.5% lower volume and approximately 10% less weight than conventional motors
• Innovation round flange provides flexible and customized mounting solutions
• Variety of mounting connection modes: facing forward, out the side of the motor,or out the rear of the motor for flexibility and space savings
• Customizations available include motor windings, various shafts, motor leads and connectors and encoder & gearhead options For details, please see the product page

MOONS' MS08HY series is a compact size HB step motor specifically designed to be applied in small precision instruments. Continuous investment in product research, and advanced electromagnetic simulation has allowed MOONS' to optimize its performance. As a result the new MS08HY series motor is a compact, high efficient, high performance step motor. This design also allows for more mounting and connection options to best fit any application.

High Torque

Optimized magnetic circuit design gives higher efficiency and higher torque. High Torque

Compact Structure – Save Space & Weight

MS08HY series has a smaller body diameter compared with conventional designs. The diameter is reduced from Φ27mm to Φ22mm. Its volume is 18.5% lower and its weight is approximately 10% less than conventional motors. This helps to achieve the customer's requirement for smaller and lighter solutions to better improve their products. Compact Structure – Save Space & Weight

Flexible Machine Designs

MS08HY series has two flange options: square flange and round flange. The square flange option has the same mounting as conventional Nema 8 designs. The round flange is a MOONS' innovation to save even more space, further reduce weight, and allows these motors to take the place of other round motor technologies. Combined with multiple wire outlet options, it lets customers easily design very compact equipment and meet the requirement of high-tech applications such as: portable medical equipment, surveillance cameras, electronic microscopes, actuators, etc. Flexible Machine Designs

Variety of Mounting and Connection Modes

· Square Flange Mounting

The square flange is a standard HB Step design. MS08HY series square flange design provides the option of two square mounting dimensions: 15.4mm or 16mm, covering all requirements in the market. Square Flange Mounting

· Round Motor Flange Mounting

MOONS' has developed an innovative round flange design which is matches perfectly to the new stator lamination. This standard mounting plate allows the mounting screws to be assembled from the same side as the motor, which can make it easier to install as well as makes the entire body very compact. The use of a separate mounting plate also makes it easy for MOONS' to provide customized mounting solutions to fit the specific application. Round Motor Flange Mounting

· Lead Wire and Plug Connections

Lead wires provide a permanent connection to the motor. They can be customized in any lead length with connectors provided on the end of the leads as an option. This allows the motor to be connected directly to the motor drive. Plug connections now have the option of facing forward, out the side of the motor, or out the rear of the motor. The rear facing connector is confined entirely within the motor body shape. This allows for further flexibility and space savings.

Mounting and Connection Options

Customers now have the flexibility to design small, compact equipment that is easy to assemble.

· Square Flange

· Round Flange

Customized Motor & Recommended Options

These motors are routinely used in low to high volume production applications. Our Standard motors offer standard customizations, and come with extended customer and product support. Customizations available include motor windings for optimal performance under your specific operating conditions, various shaft customizations; and customized motor leads and connectors. Customized Motor & Recommended Options

· High Accuracy in Closed Loop Control(Encoder Required)

MS08HY series stepper motor is small in size, but can still be assembled with photoelectric rotary encoders. The customer can make a closed loop control system for the motor, using a simple system realizing higher reliability and efficiency vs. an open loop system. Also, this closed loop system has further advantages of low vibration, low heating and stable stopping. · Mounting Dimensions of Encoder

· Recommended Encoders

Product: photoelectric rotary encoder
Type: HS20A
resolution: 1000 P/R
signal: A, B, Z
voltage: 4.5 ~ 5.5 VDC
input current: 60 mA (Max)
response frequency: 220 kHz
operating temperature: -20 ~ +85℃

· MS08HY Series Stepper Motor + Planetary Gearhead

Compact and lightweight assembly increases the output torque with small gap, high efficiency and low noise. · Recommended Gearhead

Gearhead Data
Reduction Ratio		4:1	16:1	64:1	256:1
		5:1	19:1	76:1	304:1
			22:1	90:1	361:1
				107:1	428:1
					509:1
Number of stages		1	2	3	4
Max. continuous torque	Nm	0.20	0.40	0.60	0.80
Max. intermittent torque	Nm	0.30	0.60	0.90	1.20
Weight	g	34.3	34.6	54.4	64.0
Max. efficiency	%	81	66	53	43
Gearhead length L	mm	17.7	22.9	28.1	33.3

Specification
Planetary gearhead		Straight teeth
Output shaft		Stainless steel, hardened
Bearing at output		Sleeve bearing
Radial play	mm	≤ 0.1
Axial play	mm	≤ 0.35
Max. radial load	N	8
Max. axial load	N	15(5mm from flange)
Max. force for press fits	N	100
Recommend input speed	rpm	≤10000
Direction of rotation (drive to output)		=
Ambient temperature	℃	-10~+60

· Dimension

Specification

Length	Model Number	Connect	Rated Current	Holding Torque		Winding	Rotor Inertia		Motor Weight
Length	Single Shaft	P=Plug L=Leads	Amps (mounted)	Nm Typ.	Oz-in Typ.	Ohms @20℃	g.cm²	Oz-in²	Kg	Lbs
30mm	MS08HY1	P	0.5	0.028	4	8.2	2.7	0.015	0.045	0.1
40mm	MS08HY3	P	0.5	0.046	6.5	14.1	3.6	0.02	0.062	0.14
47.5mm	MS08HY5	P	0.5	0.06	8.5	17.4	4.2	0.023	0.075	0.17

Phases	Steps/ Revolution	Step Accuracy	IP Class	Approvals	Operating Temp	Insulation Class	Insulation Resistance	Shaft Load (20,000 Hours at 1000 RPM)
Phases	Steps/ Revolution	Step Accuracy	IP Class	Approvals	Operating Temp	Insulation Class	Insulation Resistance	Axial	Radial
2	200	±5%	40	RoHS	-20°C to +50°C	B, 130°C	100 MegOhms	6 N (1.3 Lbs.) Push 25 N (5.6 Lbs.) Pull	18 N (4 Lbs.) At end of shaft

Torque Curves

Dimension

· Round Flange Dimensions: mm(in)

· Square Flange Dimensions: mm(in)

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MOONS', founded in 1994, is a global Top 3 stepper motor manufacturer with the yearly shipment of more than 10 million hybrid stepper motors. Highly recognized for High Performance and Quality Products, MOONS' offers a vast array of motion control & smart LED control products or solutions. Combining the cutting-edge technologies developed by the leading motion control brands of AMP, Lin Engineering and Technosoft, MOONS' has comprehensive capabilities to continuously provide all-purpose innovative solutions to the most demanding applications for thousands of customers around the world. MOONS' was listed on the Shanghai Stock Exchange (Stock code 603728) in 2017. NEWSLETTER SIGN UP

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