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Plastic Injection Molding for OEMs

Consistent, Scalable Production for High-Volume OEM Programs

Aroplax is dedicated to serving OEMs that require high-volume, domestic injection molding programs. That means keeping up with demand, controlling cost at scale, and ensuring reliable, repeatable production.
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Is Injection Molding Right for Your Application?

Injection molding is the right fit when applications need to scale with consistent quality, predictable cost, and long-term production stability.

It’s typically the right approach when:

  • Demand requires high-volume production
  • Long-term production must be stable and repeatable
  • Lead times need to be predictable
  • 3D printing can’t meet volume or performance requirements
  • Cost needs to come down as volumes increase
  • Metal parts are too expensive for the application
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Why OEMs Choose Aroplax

Aroplax is not just a job shop. We are a stakeholder in our customers' success. Developing high-quality, cost-effective injection molding solutions that deliver consistent, reliable performance you can count on.

Collaborative DFM approach focused on long-term program success

Full-service manufacturing partner from tool design through production and post-molding

Stable processes that deliver consistent quality and reliable lead times

Scalable production built to support long-term programs and changing demand

The result is a production program built for lower cost per unit and consistent, reliable performance over time.

Aroplax Capabilities and Press Information

  • 30 to 720 ton electric press capacity
  • Shot sizes range from 0.8 to 81.1
  • Modern equipment built for high-volume production and reduced energy consumption
  • Presses equipped with robotic automation to reduce labor and deliver consistent, efficient cycle times at scale
Press Comparison
Tonnage Range Quantity Shot Size Range
30 – 85 7 0.8 – 3.3
140 – 200 7 6.4 – 10.3
250 – 390 4 27.5 – 43.4
610 – 720 3 61.0 – 81.1

Aroplax Project Development Framework

Engineered to reduce risk early and ensure parts run consistently in production.

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Discovery:
Understanding the Part, the Process, and the Problem

We define what success looks like before anything moves forward:

  • How the part functions and the environment it operates in
  • Volume expectations and long-term production goals
  • Current pain points, inefficiencies, or hidden costs
  • Performance requirements and tolerances
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DFM Review:
Engineering Collaboration Before Tooling Is Built

Learn About Our DFM Review

We review your design with production in mind:

  • Analyzing CAD files and part geometry
  • Recommending material selection based on application
  • Identifying opportunities to eliminate waste and reduce complexity
  • Flagging risks that could impact cost, quality, or cycle time
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Tooling Design:
Design Advanced Tools with Automation

Tooling decisions define long-term success:

  • Custom mold design based on part requirements and volume
  • Automation built into the tool to reduce manual labor
  • Material and construction choices based on expected lifespan
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Quality Assurance:
Built Into Every Run

Learn About Our QA Process

Quality at Aroplax is not a final step. It’s built into the process from the start and monitored throughout production:

  • In-process inspections to verify parts during every run
  • Consistent monitoring across shifts to maintain repeatability
  • Traceability and documentation to support long-term quality standards
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Production:
Launch, Validate, and Continuous Improvement

Once in production, the focus is consistency and output:

  • Tool validation, sampling, and process refinement
  • In-line automation to maintain efficiency and quality
  • Secondary operations like assembly, kitting, and labeling
  • Ongoing monitoring to maintain on-time delivery and performance

Industries Served

Aroplax supports OEMs across industries that require complex, high-volume parts with consistent, repeatable performance.

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Electronics & Technology

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Performing Arts & Education

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Recreational & Consumer

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Window & Door

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Agricultural Equipment

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Hand Tools & Hardware

Our injection molding process is designed to adapt to different applications, environments, and performance requirements while maintaining quality at scale.

Explore All Industries We Serve

Testimonials

"Aroplax has been a dedicated and strong business partner to our company for decades. They are a highly valued supplier with excellent customer service, quality parts, on-time delivery, skilled engineering assistance, expansive knowledge on plastic resins, and are flexible to the shifting demands we see in the agricultural market."

- Agricultural Equipment Manufacturer

"I’ve worked with Aroplax for 17+ years, and I can’t speak highly enough about their team, from Engineering to Customer Service and through Manufacturing. With Aroplax, you can count on getting what you expect, when you expect it, and on having a true business partner, not just a supplier."

- ​Window Manufacturer

"Our business demands an immediate response to our customers’ needs, which requires accelerated results and guaranteed success.  Aroplax is a vital partner to our company in fulfilling these requirements. They continue to provide products of the highest quality with direct attention to our requests, matched by no other molder in the business."

- Technology Company

“Our company has been a customer of Aroplax for literally decades. They are attentive to their customers' needs…All their staff are knowledgeable, and they always want to go the extra mile...”

- Application Tools Supplier

"Aroplax is a fantastic company to work with! They have a great team that focuses on quality, cost, and delivery for us."

- Tool Manufacturer

Frequently Asked Questions

How does Aroplax help reduce cycle time?

We reduce cycle time by taking a production-first approach from the beginning, ensuring part design, material selection, and processing methods are aligned before production starts.

This includes:

  • Optimizing part geometry, draft, and wall thickness for efficient cooling
  • Selecting materials based on performance and processing behavior
  • Designing molds with balanced flow, optimized cooling, and proper cavitation to maximize efficiency and scalability

In-mold and post-molding automation are key to reducing cycle time and eliminating secondary labor.

This can include:

  • Automatic part removal and handling
  • In-mold labeling or engraving
  • Insert placement during molding
  • Unscrewing mechanisms for threaded features

By integrating these directly into the molding process, we reduce handling, improve repeatability, and eliminate secondary operations and setups, driving faster cycle times and lower total cost at scale.

How do you select the right material for an injection molded part?

Material selection starts with understanding function, performance, and cost targets of the part.

From there, we evaluate:

  • Mechanical strength and impact resistance
  • Temperature exposure and environmental conditions
  • Chemical and UV resistance, along with long-term durability
  • Cosmetic and surface requirements
  • Processing behavior and cycle time

The goal is to select a material that not only meets performance requirements, but also processes efficiently and consistently in production, helping reduce cost and improve long-term reliability.

How do you support rapid growth in production demand?

Aroplax gets involved early to understand projected volumes and long-term growth expectations. This allows us to design tooling with the appropriate level of cavitation and automation to support initial production while maintaining capacity for future demand increases.

By planning for throughput upfront, we ensure the process can handle volume spikes and scale efficiently over the life of the program.

Do you offer prototyping services before full production runs?

Yes. We understand that validating your design before committing to full-scale production is critical. Our prototyping services allow you to test form, fit, and function with production-intent materials and processes. We can produce low-volume prototype runs to help you refine your design, conduct testing, and make informed decisions before moving to higher-volume manufacturing.

Our engineering team also provides design for manufacturability (DFM) feedback during the prototype phase to identify potential production challenges early and optimize your part for cost-effective scaling.

What types of injection molding do you offer?

We specialize in injection molding, including insert molding and overmolding, based on part design and production requirements.

Injection molding capabilities include:

  • Standard injection molding
  • Insert molding
  • Overmolding and dual durometer molding

Materials we commonly run include:

  • Nylon
  • Acetal
  • TPU and TPE
  • Polycarbonate
  • Polyethylene

We also process a wide range of commodity and engineering grade materials, including glass-filled and additive-filled, as well as custom compounds. Material selection is driven by real-world performance requirements, environmental conditions, cost, and long-term production efficiency.

What type of projects are a good fit for Aroplax?

Aroplax specializes in custom industrial and consumer injection molding programs for OEMs.

We are best suited for programs that require:

  • High-volume production
  • Consistent part quality and repeatability
  • A manufacturing partner involved early in design for manufacturability
  • Full-service support from tool design through molding and post-molding operations

Our focus is on building efficient, scalable processes that perform over the life of the program.

We do not manufacture in-body medical components, but support most other industrial and OEM applications.

Do you offer prototyping services before full production runs?

Yes. We understand that validating your design before committing to full-scale production is critical. Our prototyping services allow you to test form, fit, and function with production-intent materials and processes. We can produce low-volume prototype runs to help you refine your design, conduct testing, and make informed decisions before moving to higher-volume manufacturing.

Our engineering team also provides design for manufacturability (DFM) feedback during the prototype phase to identify potential production challenges early and optimize your part for cost-effective scaling.

Do you offer prototyping services before full production runs?

Yes. We understand that validating your design before committing to full-scale production is critical. Our prototyping services allow you to test form, fit, and function with production-intent materials and processes. We can produce low-volume prototype runs to help you refine your design, conduct testing, and make informed decisions before moving to higher-volume manufacturing.

Our engineering team also provides design for manufacturability (DFM) feedback during the prototype phase to identify potential production challenges early and optimize your part for cost-effective scaling.

Ready to Start Your Project?

Aroplax engineering and injection molding solutions offer a manufacturing advantage for high-volume OEMs. With a knowledgeable team, state-of-the-art equipment, and generations of industry experience, we deliver precise, high-quality products that engineers rely on.

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