Bruin Manufacturing Company

Bruin Manufacturing Company Bruin builds on a legacy of hands-on craftsmanship, in-house tooling, and engineering support.

With our new Origin One 3D printer, we deliver high-quality prototypes fast. A big enough plastic injection molder for millions, but small enough to care.

Not every plastic is the right fit for every application.Factors like temperature, chemical exposure, UV resistance, imp...
08/24/2026

Not every plastic is the right fit for every application.
Factors like temperature, chemical exposure, UV resistance, impact strength, flexibility, and wear all influence material selection. Choosing the right resin early in the design process can improve product performance and help avoid costly changes later.
At Bruin Manufacturing, we work with customers to determine the material that best fits their product requirements and manufacturing goals.
Every successful part starts with the right material.

To learn more visit www.bruinmfg.com

A manufacturing partnership should make your job easier, not more difficult.If you're constantly following up on late de...
08/19/2026

A manufacturing partnership should make your job easier, not more difficult.

If you're constantly following up on late deliveries, waiting days for answers, or dealing with inconsistent part quality, it may be time to evaluate whether your current supplier is still the right fit.
The right injection molding partner should provide:
• Reliable communication
• Consistent quality
• Engineering support when you need it
• On-time delivery
• A commitment to your long-term success
At Bruin Manufacturing, we believe a strong partnership is built on responsiveness, transparency, and delivering on our commitments.
If you're evaluating suppliers for an upcoming project, we'd welcome the opportunity to learn about your goals.

To learn more visit www.bruinmfg.com

Even the highest-quality mold requires routine maintenance.Preventive maintenance helps protect tooling, maintain part q...
08/17/2026

Even the highest-quality mold requires routine maintenance.
Preventive maintenance helps protect tooling, maintain part quality, reduce unexpected downtime, and extend mold life.
Because our tool room is located in-house, we can perform maintenance, repairs, and adjustments quickly to keep production moving.
Proper mold care protects your investment for years to come.

To learn more visit www.bruinmfg.com

Insert molding combines metal and plastic into a single molded component.By molding directly around threaded inserts, bu...
08/12/2026

Insert molding combines metal and plastic into a single molded component.

By molding directly around threaded inserts, bushings, or other components, manufacturers can reduce secondary assembly, improve durability, and create stronger finished parts.

Depending on the application, insert molding can improve consistency while reducing manufacturing steps.

Our team works with customers to determine whether insert molding is the right solution for their application.

Finding a design issue before production is significantly less expensive than discovering it after tooling has been buil...
08/10/2026

Finding a design issue before production is significantly less expensive than discovering it after tooling has been built.

Using our Stratasys 3D printer, we can produce prototype parts directly from CAD files, allowing engineers to evaluate fit, form, and function before moving into production.

Early validation helps reduce risk, improve confidence, and support a smoother product launch.

Consistent parts begin with quality tooling.A well-built mold supports repeatable production, dimensional consistency, l...
08/05/2026

Consistent parts begin with quality tooling.

A well-built mold supports repeatable production, dimensional consistency, longer tool life, and improved process stability.

That's why investing in quality tooling pays dividends long after production begins.
Our in-house tool room allows us to build, maintain, and repair molds to help keep production running efficiently throughout the life of the program.

Learn more about our tooling capabilities by visiting our website.

08/03/2026

Great part design doesn't stop at the CAD model.

Before a part reaches production, engineers need to consider how material will flow through the mold. Wall thickness, gate location, ribs, corners, and overall geometry all influence how consistently a part fills.

Designing with manufacturability in mind early in the process can help reduce potential production issues, improve part quality, and create a smoother path to production.

At Bruin Manufacturing, we work with customers to help identify potential manufacturing considerations before production begins.

Great weather, great company, and a little friendly competition.Our team had a great time at this year's company golf ou...
07/30/2026

Great weather, great company, and a little friendly competition.

Our team had a great time at this year's company golf outing, enjoying a day away from the office and production floor while connecting with coworkers.

Thank you to everyone who participated and helped make it a great day. We're already looking forward to next year!

The fastest way to improve manufacturing efficiency isn't by changing the production process.It's by validating your des...
07/20/2026

The fastest way to improve manufacturing efficiency isn't by changing the production process.

It's by validating your design before production begins.

That's where our Stratasys 3D printer comes in.

By producing accurate prototype parts directly from your CAD files, engineers can evaluate fit, form, and function before investing in production tooling. Catching an issue during prototyping is far less costly than discovering it after a mold has been built.

Early prototyping helps:
• Verify part fit and assembly
• Identify design improvements
• Gather feedback before tooling
• Reduce engineering changes later in the project
• Move into production with greater confidence

At Bruin Manufacturing, we use our Stratasys 3D printer to help customers bridge the gap between CAD and production, making the transition to injection molding smoother and more efficient.

How has rapid prototyping improved your product development process?

Follow Bruin Manufacturing for more insights on product development, prototyping, and injection molding.

Every part we produce starts here.Behind these walls are decades of experience, precision manufacturing, and a team comm...
07/15/2026

Every part we produce starts here.

Behind these walls are decades of experience, precision manufacturing, and a team committed to delivering quality our customers can count on.

Since 1949, Bruin Manufacturing has been helping OEMs bring products to life through custom plastic injection molding, in-house tooling, and a commitment to doing the job right.

We're proud to manufacture in Iowa and even prouder of the relationships we've built along the way.

If you're looking for a manufacturing partner for your next project, we'd love to start the conversation.

Address

607 N 4th Avenue
Marshalltown, IA
50158

Opening Hours

Monday 6:30am - 4pm
Tuesday 6:30am - 4pm
Wednesday 6:30am - 4pm
Thursday 6:30am - 4pm
Friday 6:30am - 10:30am

Telephone

+16417527116

Website

Alerts

Be the first to know and let us send you an email when Bruin Manufacturing Company posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Bruin Manufacturing Company:

Shortcuts

Share

Category