Services
Plastic injection molding is a reliable way to produce strong, precise plastic parts at scale. It is often used when a business needs the same part made repeatedly with consistent quality.
At Bankier Companies, we provide plastic injection molding services for companies that need reliable parts, strong engineering support, and a smooth path from design to production.
We can help with mold design, tooling, material selection, insert molding, overmolding, quality inspection, production, assembly, warehousing, and distribution.
If you need a plastic injection molding company that can support your project from concept to delivery, Bankier Companies is ready to help.
Contact Us About Your Plastic Injection Molding Needs
Plastic injection molding is a manufacturing process used to make plastic parts.
Here is the basic idea:
Plastic resin is heated until it melts. The melted plastic is pushed into a custom mold under pressure. The plastic cools inside the mold, taking the shape of the part. Then the finished part is removed, and the process repeats.
This makes injection molding a strong choice for quickly producing many identical parts accurately and consistently.
Plastic injection molding is ideal for:
Bankier Companies has more than 40 years of experience in plastic injection molding and uses machines ranging from 7-ton to 1,500-ton clamp force. This allows the company to produce both small precision components and large, complex plastic housings and enclosures.
The mold is one of the most important parts of the injection molding process. A mold controls the shape, size, finish, and repeatability of the final part. If the mold is not designed well, the part may have defects, poor fit, weak areas, or cosmetic issues.
Bankier Companies understands that precision parts begin with precision plastic injection molds and tooling. Our experience with polymer rheology helps us specify and engineer mold designs for each unique application.
Good mold design improves quality, reduces waste, controls costs, and supports repeatable production.
Insert molding is a process where another part, often metal or another component, is placed into the mold before the plastic is injected. The plastic then forms around the insert and locks it into place.
Insert molding can reduce unnecessary assembly steps after molding. It can also improve part strength, accuracy, and reliability.
Bankier Companies offers insert molding and has shuttle press capabilities from 7-ton to 75-ton clamp force. The company has used insert molding to improve product reliability and reduce labor compared to post-molding drilling and insertion.
Overmolding is a process that adds one material over another to create a single finished part. This can be useful when a product needs a soft grip, added protection, improved comfort, better sealing, or a second material with a different feel or function.
Overmolding can help improve how a product looks, feels, and performs.
Bankier Companies provides advanced molding capabilities, including overmolding, to support more complex plastic part applications.
Plastic injection molding is a strong choice when you need many parts produced with the same shape, size, and quality.
Once the mold and process are set up, the same part can be manufactured repeatedly, making injection molding a good fit for serial production and high-volume manufacturing.
High-volume injection molding can help lower the cost per part, speed up production cycles, maintain consistent part quality, improve repeatability, support scalable manufacturing, reduce material waste, and assist with long-term supply planning.
It is often used when companies need thousands or even millions of parts and is widely used across industries such as medical, automotive, consumer goods, electronics, packaging, aerospace, and industrial manufacturing.
Some plastic parts must meet very tight requirements. A small size difference can cause problems with fit, function, assembly, or product performance.
Bankier Companies uses CMM measurement, process controls, and visual inspection to support tight dimensional accuracy, clean surface finishes, and consistent molded parts.
Injection molding has several main steps.
1. Product Design: This is where the part’s shape, size, function, material, surface finish, and production goals are reviewed. Important design details may include wall thickness, tolerances, gate location, draft angles, texture, finish, and material selection. Good planning at this stage helps prevent extra costs later.
2. Mold and Tooling Design: Next, the mold is designed. The mold must be built to match the part and support repeatable production. A well-designed mold helps create better parts, reduce defects, improve surface finish, and keep production running smoothly.
3. Manufacturing Setup: Once the mold is ready, the injection molding machine is prepared. Resin pellets are loaded, heated, melted, and pushed into the mold.
4. Clamping, Injection, Cooling, and Ejection: The mold closes and clamps shut. Melted plastic is injected into the mold cavity. The plastic cools and hardens. Then the mold opens, and the finished part is ejected.
Quality is important in every injection molding project.
A part should not only look right. It should fit, function, and perform as expected.
Bankier Companies uses strong quality and inspection systems to support reliable molded parts. Inspection may include CMM measurement, visual inspection, dimensional checks, and strict process controls.
Our status as an ISO 9001:2015 certified mold maker and injection molding manufacturer ensures you receive consistent quality from concept to production.
Plastic injection molding offers many benefits for businesses that need reliable plastic parts.
With more than 40 years of injection molding experience, Bankier Companies has the knowledge to support a wide range of plastic part needs. Our machines range from 7-ton to 1,500-ton clamp force, allowing us to produce small precision parts as well as larger molded plastic components.
From tooling and production to supply chain management, warehousing, and distribution, Bankier Companies provides end-to-end support. We focus on quality, repeatability, and efficient manufacturing so your parts meet specifications and arrive as expected.
