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Calculate the necessary torque, speed, stopping accuracy, and system inertia for your application.

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Operator Manuals

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Product Lead Time can be found in the Online Product Catalog listed under Specifications as "Available to Ship". For lead time on larger quantities please contact your local sales office.

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Product Training

As the world leader in motion systems, Oriental Motor has experience and knowledge in a wide range of areas related to motion control and motion systems. Oriental Motor's team of application specialists, engineers and technical support staff have a wealth of knowledge to share. As part of our commitment to provide the latest technology and service, Oriental Motor is now offering in-depth product and technology training for all. You can choose to join an online course, or stop by for an in-person training (available in Chicago and Los Angeles). To learn more about the new training Oriental Motor offers call  1-800-GO-VEXTA  1-800-GO-VEXTA (468-3982). Click here for more information.

Safety Standards

The following marks are indicated on the nameplates of approved products. Learn More.

ULUL recognized component.

ULRecognized to Canadian safety requirements under the component Recognition Program of Underwriters Laboratories Inc.

ULRecognized to Canadian Safety requirements and UL under the component Recognition Program of Underwriters Laboratories Inc.

CSACSA certified component.


ENEN and IEC certified component (indicates that VDE, TÜV Rheinland or DEMKO has certified that the product meets EN or IEC standards.)


CECertified CE marking for compliance with EC Directives (safety).

JETJapanese Safety Standards for Electrical Equipment Certified by Japan Electrical Safety & Environment Technology Laboratories.

CCCChina Compulsory Certification safety license for selling or exporting to China.

Technical Seminars

Responding to customer requests for in-depth training, Oriental Motor offers Free Motion Control and Technical Seminars. Targeted towards the needs of local industries, Motion Fair included technical seminars, one-on-one engineering assistance and product displays. Motion Fair is a technical training and information-sharing event for customers and partners of Oriental Motor. Motion Fairs are held throughout the year at various location in the United States.

For more information on the next Motion Fair in your area register for the FREE technical seminars and an Oriental Motor representative will contact you with the details.

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AlphaStep
UMK Series Stepping Motor and Driver Package (AC Input)
UMK Series

The UMK Series is a stepping motor (resolution: 200 per rotation) with easy-handling AC input driver package. It provides enhanced high-speed characteristics compared with motor packages combined with a DC input driver.

Selectable from Six Types of Motors

The product line now has two frame sizes 1.65 in. (42 mm) and 2.22 in. (56.4mm). Three kinds of output torque are available for each size.


Compact Driver

The UMK Series driver offers high output of 0.95 to 2 A/phase in a compact body of 1.38 in. x 3.94 in. x 5.31 in. (35 mm x 100 mm x 135 mm) based on surface mount technology and optimized heat design.

A Full Range of Functions

The UMK Series has a range of built-in functions such as automatic current cutoff, pulse input mode switching, step angle select and overheat output logic switching. All these functions can be controlled using the front panel switches and monitored by LEDs. The series also comes with a timing output that facilitates mechanical homing.

RoHS Compliant

RoHS (Restriction of Hazardous Substances) Directive:
Directive on restriction of the use of certain hazardous substances in electrical and electronic equipment (2002/95/EC).
The RoHS Directive prohibits the use of six chemical substances in electrical and electronic products sold in the EU member states. The six controlled substances are: lead, hexavalent chromium, cadmium, mercury and two specific brominated flame-retardants (PBB and PBDE).

Product Lineup

Type
Motor Frame Size
Basic Step Angle
Max. Holding Torque

Standard

Standard

1.8°
22 ~ 45 oz-in
(0.16 ~ 0.32 N·m)
55 ~ 191 oz-in
(0.39 ~ 1.35 N·m)
High-Resolution
High-Resolution
0.9°
22 ~ 45 oz-in
(0.16 ~ 0.32 N·m)
55 ~ 191 oz-in
(0.39 ~ 1.35 N·m)

View Products = View all available part numbers for UMK Series Step Motor and Driver Systems