What are the opening hours?

Monday 7am - 4:30pm Tuesday 7am - 4:30pm Wednesday 7am - 4:30pm Thursday 7am - 4:30pm Friday 7am - 4:30pm

Groschopp Inc

USA Manufacturer of fractional horsepower electric motors and gearmotors for original equipment manu

Since our founding over seventy years ago, we have come to be trusted by our customers for more than just motors. We are proud to have earned the business of world-class OEMs, and today they rely on us as a critical link in their supply chain for comprehensive services and solutions. We have become a critical partner in their achievement of their business goals.

08/20/2026

Meet the People Behind the Build at Groschopp

Get to know Noah from our Drafting Department!
• Favorite part of my job: Designing custom motors
• Things I enjoy outside of work: Working on my trucks, hunting, and spending time with my family.

08/18/2026

What Causes Electric Motor Efficiency Losses?

A motor uses electrical energy to produce mechanical power, but some energy is lost during operation. Understanding these losses can help explain what affects a motor’s overall efficiency.

Some common sources of efficiency loss:
- Friction Losses: Caused by resistance from parts like bearings, bushings, and brushes.
- Windage Losses: Caused by air resistance and turbulence as the motor rotates.
- Iron Losses: Losses in the motor’s magnetic core, including hysteresis and eddy current losses.
- Ohmic Losses: Caused by current flowing through the resistance of the motor’s conductors.
- Stray Losses: Other losses that do not fit into the main categories above.

These losses cannot be completely eliminated, but knowing where they come from can help when looking at motor efficiency and overall performance.

Learn more: https://www.groschopp.com/efficiency-and-losses-in-electric-motors/

08/13/2026

Meet the People Behind the Build at Groschopp

Get to know Gail from our Maintenance Department!
• Favorite part of my job: Walking
• Things I enjoy outside of work: Going on walks and birdwatching!

08/11/2026

AC Planetary Gearmotors

Our AC planetary gearmotors are a good fit for applications that need high torque and reliable inline speed reduction. With a wide range of gear ratios, they can handle different speed and torque requirements across commercial and industrial equipment.

Features:
• 1/20–3/4 HP
• 115 & 230 VAC
• 1.3–700 RPM
• 5:1–1000:1 gear ratios

Learn more: https://www.groschopp.com/motors/ac-gear-motor/ac-planetary-gearmotors/

08/06/2026

Meet the People Behind the Build at Groschopp

Get to know Betty from our Machining Department!
• Favorite part of my job: The people I work with!
• Things I enjoy outside of work: Relaxing

08/04/2026

Celebrating 20 Years at Groschopp!

Last week, we had the opportunity to celebrate John’s retirement after 20 years at Groschopp.

We appreciate the hard work and dedication he brought to his role as a lab tech. Congratulations on your retirement, John!

07/30/2026

Meet the People Behind the Build at Groschopp

Get to know Brenda from our Shipping & Warehouse Department!
• Favorite part of my job: Everything!
• Things I enjoy outside of work: Relaxing

07/28/2026

Built for Harsh Road Conditions

A manufacturer came to Groschopp looking for a compact, low-maintenance motor for its truck transmission shifter.

Some challenges included:
- Exposure to rain, snow, ice, salt spray, dust, heat, and vibration
- Fitting the motor within a tight space
- Requiring minimal maintenance
- Keeping the solution cost-effective

Groschopp developed a PMDC motor with a brush card for easier maintenance. The motor was also designed with an IP66 rating and a special coating to help protect against corrosion.

Learn More: https://www.groschopp.com/case-study/truck-transmission-shifter/

07/23/2026

Meet the People Behind the Build at Groschopp

Get to know Sophia from our Quality Assurance Department!
• Favorite part of my job: The co-workers I work with
• Things I enjoy outside of work: Drawing and playing video games

07/21/2026

How to Choose an AC Induction Motor

AC induction motors are a good choice for equipment that needs reliable performance and low maintenance. Choosing the right motor comes down to understanding the needs of the application.

Here are a few things to consider:
• Single-phase or three-phase power
• Starting torque requirements
• Fixed-speed or variable-speed operation
• Gearbox compatibility
• Efficiency under the expected load

Learn more by watching the full video: https://www.groschopp.com/video/choose-electric-motor-ac-motors/

Address

Sioux Center, IA

Opening Hours

Monday	7am - 4:30pm
Tuesday	7am - 4:30pm
Wednesday	7am - 4:30pm
Thursday	7am - 4:30pm
Friday	7am - 4:30pm

Telephone

+17127224135

Website

http://www.groschopp.com/

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