FAQ

DID YOU KNOW

Universal Motors have high power-to-weight ratios, potentially reaching speeds of 20,000rpm+

DID YOU KNOW

Brush cards are ideal for rougher applications.

DID YOU KNOW

There are 7 different factors of choosing whether you need oil or grease.

ABOUT THE COMPANY

We are a fractional horsepower electric motor manufacturer. We build and assemble all our motors and gearmotors in-house, at our location in Sioux Center, IA, USA. We work directly with the original equipment manufacturers (OEM’s) on any new projects.
We manufacture fractional hp electric motors—PMDC, AC Induction, Brushless DC and Universal. These motors can be converted into inline gear motors or right angle gear motors. Each of these combinations can be modified or custom engineered to make sure you are matched with the best motor or gearmotor to fit your specific needs.
Groschopp has been in business since the early 1930’s. We have had a lot of experience in all types of different industries. You can learn more about us on our history page.
“To meet or exceed customer requirements and enhance customer satisfaction through continual improvement.”
Our team is available to help you weekdays from 7 AM to 4:30 PM CST.
Groschopp is closed for the following holidays throughout the year: New Year’s Day, Easter, Memorial Day, 4th of July, Labor Day, Thanksgiving, day after Thanksgiving, Christmas Eve and Christmas day.
Available positions are posted on our Careers page, and applications can be filled out there. You may also send your resumes/applications directly over to groschopp@groschopp.com. Your information can be mailed to Groschopp, Attn: Human Resources at 420 15th St., Sioux Center, IA 51250.
We are in many different industries and applications, but some of our most common include: automotive, industrial/commercial, construction, agriculture, food processing, medical equipment, sporting goods, packaging, as well as many others.
Groschopp has been a member of the Motion Control & Motor Association (formerly the SMMA) since 2010. The MCMA is the manufacturing trade association for the electric motor and motion control industries. The MCMA is the voice for the motor and motion industry, providing a forum for education, communication, research and networking.

GENERAL QUESTIONS

We have temporarily turned off our cart feature due to material & labor shortages.
WK and NR part numbers reference Groschopp Germany motors. Although we have the same name, we are completely different companies and do not manufacture compatible motors. Check out our blog article for more questions about our motors compared to Groschopp Germany motors.
If the motor you are looking for is referencing a 8 or 9 digit part number (i.e., xxxx-xxxx & xxx-xx-xxxx). If you didn’t purchase the unit from us directly, it is most likely a proprietary design that is custom to an OEM.
The 4 main specs we typically need to know first are the output speed, torque, duty cycle (on/off time), inline or right angle (RA) design.
IP stands for ingress protection and that protects your motor from water and dust environments.

PURCHASING

Groschopp accepts two methods of payment: bank transfers and terms. Before you can get set up on terms, we ask that the first order be paid with a bank transfer. A sales representative will work with you to find the best payment option for you.
Yes. We build samples in our low volume department that vary from 1-10pcs. Low volume orders go through our Fast Track department first before getting released into production. Larger orders through production are roughly 200pc minimum orders. Our minimum order fee is $75.
Please see our terms and conditions for more information regarding our return policy on quoted motors, gear motors and controls. There is no warranty for online orders.
Our motors have a one year warranty. There is no warranty for any of our online orders or replacing proprietary designs. For more information, visit our terms and conditions page.
We ship our products in North America & Canada. Delivery times may vary depending on location.
Lead times will vary based on factors such as quantity and/or special material requirements.
You can easily check the status of an order by contacting your Regional Account Manager or Customer Service Representative at 800-829-4135 or sales@groschopp.com. They can provide you with the shipping date as well as the tracking number for shipped orders.
OEMs can easily get replacement parts for your motor by contacting your Regional Account Manager or Customer Service Representative at 800-829-4135. If the design is proprietary, you will be directed to the OEM from whom you purchased the product. There is a $75 minimum charge for replacements.

PRODUCT DETAILS

Fractional horsepower motors refer to any motor that produces less than 760 watts of power (1 hp). Although this is the standard for fractional horsepower motors, Groschopp’s motors have slightly different ranges: -AC: 1/20 – 1 hp -DC: 1/15 – 1 hp -Brushless: 1/7 – 1/2 hp -Universal: 1/4 – 2 1/2 hp -Gear motors: 1/100 – 3/4 hp
Groschopp motors are rugged and built to last each motor type performs best in certain applications. More about proper motor selection can be found in our whitepaper. For demanding applications and those with harsh environments, we will work with you to find a motor that can hold up to the especially challenging requirements.
Our Motor Search Tool is a great starting point to find the specs you are after. It will require you to know your speed, torque, and/or power requirements. If you still can’t find what you are looking for, our proprietary software, MOTORTEC, allows us to search thousands of standard combinations in just seconds. Submit your specs and we will work with you to determine the right match for your application.
At this time, we have not expanded into the niche market needing stainless steel motors. However, it is something we are considering for the future.
Yes, Groschopp has the capabilities to meet CE, RoHS and UL certifications as well as others.
All Groschopp motors and gearmotors have the capability of running in the reverse direction, however, it requires rewiring each time.
Our standard motors are IP40 or IP44, but can range up to IP66. Our blog about Groschopp’s standard IP ratings provides an overview of the IP rating for each of our standard motor types.
-Standard refers to catalog numbers. These are products that are ready to be built and often allow for quick turnaround times. They are the products that are listed on our DC, AC and Brushless motor and gearmotor pages. -Modified motors are standard products that have had small adjustments made such as altering the shaft length, adding a foot mount or increasing the sealing protection to a higher rating. Upload your specs here to have our team work with you on your customizations. -Custom is a blank sheet design. Our engineers will work alongside you to create a motor or gearmotor that is specific to you and your application. View our customization page for more information about custom motors or upload specs to our team to get started.
We have wiring diagrams available on each of our individual product pages. Take a look at some of our standard wire diagrams that you can reference.
We are continually running a variety of tests with our state-of-the-art equipment to be sure the final products meet or exceed industry standards. Below is a list of Groschopp’s testing capabilities: -Motor horsepower, speed and torque -Motor and gearbox thermal -Gearbox yield strength -Gearbox efficiency -Gearmotor life -Sound analysis, harmonics -Heat and cold -Liquids, corrosives and dust -Heavy and overhung loads -Shock and vibration -Extreme duty cycles -Amperage at load -And more
Traceability is a critical part of our manufacturing process. We are able to trace the adherence to standards along an unbroken chain of measurements. We use dedicated gauges and gauge tracking to insure that our products meet or exceed agreed upon standards. We also have the capability for tracing products along the production/distribution chain on a series number basis.

HISTORY

Partnering with Groschopp means working with a small electric motor and gear motor manufacturer that strives for the American standard of quality. It means having a team of motor experts to find the best standard or custom solution for your application.

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How to use the Motor Search Tool

Narrow your search by selecting motor type, gearbox, voltage, and phase options for your desired motor.

Select a dominant variable: choose one of the three parameters to narrow your search. The selected variable determines which slider bar you will be able to manually move.

Use the slider corresponding to your dominant variable to further narrow your motor selection. The other sliders will automatically move to show available ranges based on the range of your selected variable.

Results will upload as your search criteria changes. If you have any questions regarding your results or how to use the search tool, you can chat with us using the green tab on the left-hand side of your screen.


Note: Groschopp Universal motors are custom built to fit your application so no additional options are available to narrow the search. Selecting the Universal motor type will prompt a message taking you to the Universal product page.

Not sure what you need?

One of our team members would be happy to help. Contact us at 800-829-4135 or by email at sales@groschopp.com. You can also chat with us using the green tab on the left side of your screen.

send us an email

Universal Motors

Groschopp Universal motors are custom built to fit your application so no additional options are available to narrow the search. Standard frame sizes and motor features can be found on the Universal page.

go to Universal page