Putting it All Together: Standalone Plastic Part Assembly Service

Selection teams in the manufacturing industry understand efficiency is critical for smooth and profitable operations. Those whose products require even light plastic part assembly or kitting face a number of challenges in achieving optimal efficiency. From handling inventory to ensuring quality control to keeping complex processes on schedule, manufacturers dealing with part assembly processes navigate a multifaceted landscape every day.
A Trusted Partner Steps Up
At New Berlin Plastics, we’ve spent years handling light assembly and kitting for our injection molding customers. This includes plastic part assembly, simple wiring, procuring and applying stickers or branding materials, bagging products with instruction manuals, and much more. Recently, we’ve expanded our service offerings to include standalone assembly and kitting to help optimize processes for manufacturers. That means our established record of excellence extends to all manufacturers — even those whose components are made elsewhere.
Our services are flexible and each project is evaluated individually. Generally, our capabilities include:
- Assembling multiple molded or non-molded parts into a finished subcomponent
- Applying labels or installing hardware
,such as fasteners, gaskets, and inserts - Kitting multiple parts into a ready-to-ship or ready-to-assemble unit
- Packaging products for retail
Challenges and Solutions for Manufacturers
Opportunity Costs Add Up
For manufacturers, efficiently managing time is crucial, especially with non-core tasks like assembly or kitting. While essential, these tasks can detract from key operations such as product development and production scaling. These processes are often repetitive, labor-intensive, and complex to handle internally. Particularly with limited space or staff.
Outsourcing to a reliable partner can boost efficiency, reduce labor costs, and eliminate the hassle of managing these peripheral tasks. A professional partner ensures all components are precisely assembled or kitted, packaged correctly, and ready for use. Minimizing errors and maintaining production flow. This partnership allows manufacturers to focus on their main strengths, trusting that all supporting processes are handled accurately and reliably.
Many Parts, Many Touchpoints
One of the challenges faced by many manufacturers is the complexity involved in coordinating numerous parts that must be precisely put together to create a final product. The intricacy increases when dealing with custom orders or variations in product lines, requiring precise coordination and agile production systems.
Complexity arises not only from the number of parts but also from the need to manage varying lead times, part specifications, and unique customer requirements. Even a single mistake in part assembly or kitting can lead to delays and impact the entire production schedule. This necessitates a robust system to track inventory, manage workflows, and synchronize various assembly tasks.
Each Supply Chain Link Has Risk
Supply chains have become more complex, requiring advanced management strategies. This complexity is especially apparent when products involve many parts, processes, and teamwork across different regions. Each added connection adds risk such as shipping delays, customs issues, communication problems, and quality assurance hurdles.
These challenges can disrupt operational efficiency and drive up costs. To overcome them, industry professionals must implement strong, strategic solutions that ensure smooth supply chain integration—while preserving both quality and timelines.
Choose New Berlin Plastics for Standalone Plastic Part Assembly, Kitting, and Beyond
The lowest-risk, highest-value partner you can choose is New Berlin Plastics. In fact, we’re celebrating 50 years of partnerships in 2025, and in that time, we’ve never once caused a customer’s line to shut down. Our approach has always been to combine the best people, processes, and technology to deliver quality products on time 97.3% of the time. As for the other 2.7% of the time, our customers appreciate the transparency and accountability of our early-and-often communication.
If that’s the sort of reliability you want from a plastic part assembly or kitting partner, we hope you’ll reach out to our team.