CustomPartNet
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October 9, 2026
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Updated October 9, 2026
A good first step is to filter your supplier list by the capabilities your part actually demands, such as experience with nylon, glass-filled grades, or specific quality certifications. Location matters too, since it affects freight costs and how quickly you can get parts in hand. For long-running conveyor programs, the supplier you pick can matter as much as the part design itself. Ask for sample parts whenever you can. They show you what a supplier’s tolerances, surface quality, and workmanship really look like, which is often more useful than a capabilities list. Browse the supplier network on the right to compare qualified suppliers, look at sample parts, and request quotes.
Injection molding is the most commonly used manufacturing process for the fabrication of plastic parts. It works especially well for conveyor components because the same part is often needed by the thousands, and each one has to fit and perform like the last.
The process requires an injection molding machine, raw plastic material, and a mold. The plastic is usually supplied as small pellets, which are fed from a hopper into a heated barrel. Inside the barrel, a reciprocating screw rotates and slides axially, moving the material forward while it is melted by pressure, friction, and surrounding heaters.
Once enough molten plastic has built up, the screw drives it through the nozzle and into the mold. The buildup of pressure packs and holds the material in the cavity while it begins to cool and solidify into the shape of the part.
When the required cooling time has passed, the clamping unit opens the mold and the ejection system pushes the finished part out. The mold then closes and the cycle starts again. Cycle times typically range from a few seconds to a couple of minutes depending on part size and wall thickness.
Polyamide, commonly called nylon, is a strong, wear-resistant material that has long been a go-to choice for moving parts. For conveyor systems, it offers:
High strength and toughness under repeated loading
Excellent wear resistance for parts that slide or rotate against other surfaces
Good chemical resistance to oils, greases, and many industrial fluids
Low friction, which helps reduce noise and energy use
Glass-filled and lubricated grades for added stiffness or reduced wear
A good balance of performance and cost compared with metal replacements
One thing to plan for is that nylon absorbs moisture. This can affect both how the material processes and how stable the part dimensions are in service, so material drying and grade selection are worth discussing with your supplier early.
The mold is the custom tooling that gives the part its shape. It is usually made of steel or aluminum and is split into two main halves, the mold core and the mold cavity. When the mold is closed, the space between them forms the part cavity that the molten plastic fills.
Tooling cost is shaped by several factors:
Size of the part and mold base
Geometry and number of features
Number of cavities
Tolerance and surface requirements
Expected production quantity
Conveyor components often involve:
Rollers, sprockets, and idler wheels with bearing bores
Ribbed and boss-heavy designs for strength without excess material
Glass-filled materials that call for hardened tool steels
Uniform wall thickness to limit warping and shrinkage
Side-actions for features such as cross holes or snap-in tabs
PA injection molding is used across industrial material handling to produce:
Conveyor rollers and roller sleeves
Chain guides and wear strips
Sprockets and drive wheels
Belt support rails and slider pads
Bearing housings and bushings
Gears and idler pulleys
Cable and chain carriers
Guide brackets and mounting hardware
Sensor mounts and protective covers
Package sorting and diverter components
Ohio suppliers support both prototype and production programs for equipment manufacturers, system integrators, and maintenance teams across North America.
Nylon is strong, tough, and resists wear, which suits parts that roll, slide, or carry load all day. It also resists many oils and chemicals found in industrial settings and weighs far less than metal alternatives.
Tooling costs typically range from $5,000 to $100,000+ depending on part size, complexity, and the number of cavities. Per-part costs depend on material use, cycle time, and annual volume. Glass-filled grades may also add to material cost and mold wear.
Both are common grades. Nylon 6/6 generally offers higher stiffness and heat resistance, while Nylon 6 tends to be a bit tougher and easier to process. The right choice depends on loads, operating temperature, and the environment, so it is worth reviewing with your supplier.
Yes. Nylon absorbs moisture from the air, which can slightly change part dimensions and mechanical properties over time. It also needs to be dried before molding. Discuss tolerances and operating conditions with your supplier so the part is designed with this in mind.
Yes. Glass-filled grades increase stiffness and strength and are often used for load-bearing parts. They can be more abrasive on tooling and may affect surface finish, so mold materials and gate design should be considered during quoting.
Yes. Many Ohio suppliers offer design-for-manufacturing feedback, prototyping, tooling, pilot runs, full production, and assembly. Getting them involved early can help you avoid costly design changes later.
Injection molding is most economical for medium-to-high volumes, because the tooling cost is spread over more parts. Many conveyor programs begin with a modest run and grow as the product gains traction.
Get competitive quotes from Ohio injection molding suppliers with experience in nylon industrial components. Upload a CAD file, drawing, or part concept and receive quotes from qualified suppliers matched to your needs.
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