Harbor Plastics is a premier provider of custom plastic injection molding services, offering high-quality, precision-molded components to a diverse range of industries. Based in Minnesota, we leverage our central Midwest location to provide fast, cost-effective shipping across the United States. Our advanced capabilities, combined with a commitment to lean manufacturing, enable us to meet the needs of both short-run and high-volume production while maintaining quick turnaround times.

Advanced Injection Molding Capabilities

At Harbor Plastics, we utilize state-of-the-art injection molding equipment capable of handling shot sizes up to 51 ounces and clamping forces ranging from 60 to 350 tons. This flexibility allows us to accommodate a wide variety of parts, from small precision components to larger, more complex molded products.

Short-Run, Low & Medium Volume Production

We specialize in short-run, low and medium volume injection molding, making us the ideal partner for businesses that require customization, prototyping, or limited production runs. Thanks to our efficient processes and quick setup times, we can turn around projects in as little as two days.

High-Volume, Long-Run Production

In addition to short-run projects, we are fully equipped to handle large-volume production runs with the same level of precision and efficiency. Our rush service is available upon request, ensuring that critical projects stay on track, even with tight deadlines.

Efficiency & Precision with Lean Manufacturing

At Harbor Plastics, efficiency is a priority. We operate with a lean manufacturing approach, ensuring minimal waste and maximum productivity. Our staff includes a Six Sigma-certified Green Belt employee, helping us maintain consistent quality control and process improvement.

To maximize efficiency and lower costs, we employ lights-out manufacturing, allowing our plastic injection molding machines to run 24 hours a day, five days a week. This continuous operation ensures high production rates and rapid fulfillment, making us an excellent choice for companies that require quick, reliable production cycles.

Diverse Applications Across Industries

Harbor Plastics provides custom plastic injection molding in Minneapolis for a wide variety of applications, including:

• Consumer Products – Custom-molded parts for everyday items
• Hardware Components – Durable, precision-molded pieces for industrial use
• Hunting Equipment – High-performance molded parts for outdoor gear

Whether you need intricate, high-precision components or durable, heavy-duty plastic parts, we have the expertise and equipment to deliver superior results.

Midwest Location & Shipping Advantages

Located in Minnesota, Harbor Plastics benefits from a strategic Midwest location, allowing us to efficiently ship products nationwide. Our central location provides shorter transit times and lower freight costs, ensuring that customers receive their injection molded components quickly and cost-effectively. For businesses requiring just-in-time manufacturing, our logistical advantages make us an ideal partner.

Partner with Harbor Plastics

Harbor Plastics is committed to delivering high-quality injection molded products with speed, efficiency, and precision. Whether you need a short-run, low-volume prototype or high-volume production, we are ready to meet your needs with advanced technology, expert engineering, and lean manufacturing practices.

Contact us today to discuss your next plastic injection molding project!