There’s no Replacement for High-Quality Results

We’ve been injection molding plastic parts for more than a half-century. We create value for our customers by combining experience and expertise with an innovative, collaborative approach.

Proven Results

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  Water quality testing device

  Sophisticated part design & multi-part assembly

  
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  Single-Cavity tooling

  Quick-turnaround, Quality tooling

  
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  Ultrasonic Welding

  Used for the bonding of thermoplastic parts and for putting inserts into plastic molded or machined parts.

  
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  Agricultural pump housing

  Super high-strength Nylon application

  
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  Construction housing base

  Metal-to-plastic conversion & cost reduction project with several ultrasonically welded inserts

  
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  Battery cover

  New overmold application to fix existing housings

  
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  Medical device charging housings

  These parts are injection molded, pad printed, & insert overmolded.

  
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  Sensor housing

  High-temperature application

  
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  Fuel cell housing top

  Very complicated tooling; product used outdoors

  
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  Laser leveling housing

  Sub-assembly with pad printing

  
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  Laser leveling construction housing

  Project included over-molding, sub-assembly, & pad printing

  
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  POS scanning device

  Multiple-component sub-assembly

  

Testimonial 1

“Value for dollar spent has always factored heavily in Proto Plastics’ favor. They maintain a high degree of consistent quality and customer service too seldom seen in suppliers today. Well regarded in the industry, very generous with engineering help and design recommendations. Truly a pleasure to deal with. Would be difficult to replace.”

Purchasing Manager
Electronics manufacturer

Testimonial 2

“Our product is delivered on time, and is of the highest quality. Proto responds to inquiries quickly. Overall, a great supplier.”

Buyer
Aircraft component manufacturer

Testimonial 3

“Thanks for another great year!”

Quality Assurance Manager
Industrial component manufacturer

Testimonial 4

“If we have a problem during production at any time, Proto’s team is here to see how they can help, and to me that is something that is priceless. I consider Proto Plastics a top notch supplier. They rate above the rest in all areas.”

Manufacturing Engineer
Construction technology manufacturer

Testimonial 5

“There are very few vendors I can say I ‘enjoy’ working with – you are one of the few.”

Mechanical Engineer
Electronics manufacturer

Testimonial 6

“We would like to see more suppliers that are as proactive. Keep up the good work.”

Supplier Quality Manager
Tier 1 automotive supplier

Testimonial 7

“I rate Proto Plastics as a superb supplier of plastic parts and subassemblies. Over the past 10 years, I have received nothing but the best in technical assistance, quality products and friendly service.”

Mechanical Engineering Manager
Business equipment manufacturer