Thin-wall injection molding is a subtype of standard injection molding that's designed to produce thinner, more lightweight parts. Inspired by techniques used to create thin plastic packaging (with walls thinner than 0.025 inch or 0.62 mm), thin wall molding produces parts with much thinner walls compared to their overall size (based on flow length) than with traditional methods. In order to make parts meeting these specifications, molding pressure, molding speed, and cooling rates must be increased, and adjustments made to gating and part ejection.

Of course, one of the greatest advantages of thin wall molding is creating strong, high performing parts and packaging using less resin. Savings on materials, transportation, and other production costs due to their lighter weight and rapid manufacturing provide additional advantages.

Because the thin wall molding process generates parts and products at or over a specified ratio of flow length to wall thickness, both small and large parts can take advantage of these techniques. Applications for thin wall molding can be found across dozens of industries including:

• Packaging for produce, baked goods, and other food products
• Packaging for non-food products
• Containers, caps, and lids
• Electronics and cell phone components
• Medical devices, packaging, and single-use items
• Consumer products and packaging

At Bennett Plastics, we are always seeking ways to expand our capabilities, and serve you better. Contact us to learn more about the full range of plastics manufacturing solutions we've developed over decades of innovation.