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

Name: Groschopp Inc
Address: Sioux Center, IA, US
Telephone: +17127224135

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.

06/02/2026

Built on Finding Solutions

Our history has always been shaped by solving what was in front of us. From powering a small radio on a rural farm to building motors and inverters for ships and aircraft during World War II, each part of our history has come with different challenges. But it has always been about finding the best way to solve them.

That same mindset still shapes how we work today.

Learn more about the history behind Groschopp https://www.groschopp.com/groschopp-history/

05/28/2026

Meet the People Behind the Build at Groschopp

Get to know Karl from our Industrial Engineering team!
• Favorite part of my job: The people I work with
• Things I enjoy outside of work: Fishing, golfing, and pheasant hunting

05/25/2026

Today, we remember and honor those who gave everything in service to our country.

Groschopp will be closed on Monday, May 25, 2026.

05/21/2026

High Torque in a Tight Space

A commercial baking equipment manufacturer came to Groschopp looking for a motor that could be used across four different applications on a bread packaging machine.

The challenges included:
• Tight space requirements
• High torque in a small package
• Duty cycles ranging from continuous operation to direction changes every second or less
• Brush life concerns in short oscillating duty cycles

Groschopp developed a custom brushless DC motor with a ten-pole, 12-slot design to deliver high torque in a compact package. New bearings helped increase the expected motor life to 50,000 hours.

Learn more: https://www.groschopp.com/case-study/twist-tie-machine/

05/19/2026

The People Behind the Build at Groschopp

Meet Gabriel from our Maintenance team!
• Favorite part of the job: Creating and finding new ways to solve problems.
• Enjoys outside of work Listening to music, playing video games, and spending time with family and friends.

05/14/2026

How Application Load Impacts Motor Control

Application load can affect whether a motor needs a simple setup or a more advanced control system.

Some common motor control approaches include:
• Line-fed motor
• Open loop system
• Closed loop speed control
• Closed loop torque control

Learn more here:https://www.groschopp.com/wp-content/uploads/Whitepaper-Test-Evaluate-Motors_Final.pdf

05/12/2026

Decades of Building and Improving

Over the years, Groschopp’s motors and gearmotors have continued to evolve alongside changes in equipment, technology, and the industries we serve.

Today, that same focus continues through ongoing improvements to our products and manufacturing capabilities, helping us better support customer applications.

05/07/2026

BLDC Planetary Gearmotors

Our BLDC Planetary gearmotors are built for applications that need efficient performance and reliable operation in a compact design. The planetary gearbox configuration delivers strong output torque and supports continuous or intermittent duty operation.

Key Features:
• 1/33 to 1/4 HP
• 5:1 to 1000:1 standard ratios
• 8 to 750 RPM
• 8 to 950 in-lb rated torque

Learn More: https://www.groschopp.com/motors/brushless-dc-gear-motor/brushless-planetary-gearmotors/

05/05/2026

Gearmotor Basics: Parallel Shaft Reducers

Parallel shaft gearboxes are a common reducer option for many types of equipment. They are often used when equipment needs reliable performance during continuous operation.

A few common characteristics:
• Uses helical pinion gears and spur gears
• Offers high efficiency ratings
• Works well for continuous duty applications
• Provides good overhung load capability

Learn more: https://www.groschopp.com/video/gear-motor-basics-parallel-shaft-reducers/

04/30/2026

Choosing the right motor often means looking beyond basic specs.

When a motor is being evaluated for a specific application, testing can help show how it performs under real operating requirements.

Some of our motor testing capabilities include:
- Speed and torque testing
- Thermal testing
- Gear reducer efficiency testing
- Extreme duty cycle testing
- Sound analysis
- Gearmotor life testing

Testing gives a clearer picture of motor performance and helps support a better fit for the application.

Learn more: https://www.groschopp.com/about-us/engineering-department/

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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