Custom Injection Molding

Category: plastic mold company

  • cap mould machining way-Shaper and planer

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    Kenny
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    There are some plastic cap mould making ways as follows: PLANING The metal-removing process of planing takes place when the cutting tool moves by a straight back-and-forth motion with respect to the work, or when the workpiece moves in a straight back-and-forth motion with respect to the tool, which is stationary. Four types of machine…

  • Antistatic Materials

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    Injection Molding Materials Antistatic Materials Static charge on a plastic part attracts dust, jams automated handling, and can kill sensitive electronics. Antistatic additives solve this by letting the charge bleed away instead of building up. The choice comes down to how the part is used, what it contacts, and how long the protection must last.…

  • How to Choose a PET Preform Mold Supplier

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    A PET preform mold is a precision tool. Preforms need exact neck finishes, even walls, and clear material. A poor mold gives cloudy preforms, leaky bottles, and dead machines. Look for Proven Preform Experience Choose a supplier who builds PET preform molds every week. Avoid shops that treat them as side work. Ask how many…

  • Why PET Preform Molds Need Trial Runs Before Production

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    Every new PET preform mold should be trialed before full production. A trial finds problems while they are cheap to fix. Skipping it risks far bigger losses later. What a Trial Run Checks A proper trial checks fill balance across cavities. It checks neck dimensions and wall thickness. It checks clarity. No haze, no yellowing,…

  • PET preform molding technology

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    PET preform molding turns PET resin into the small tubes that become bottles. The process looks simple. It demands tight control at every step. Drying the PET Resin PET drinks moisture from the air. Wet resin makes haze, bubbles, and weak bottles. Dry PET at 160–175°C for 4–6 hours. Target moisture below 50 ppm. A…

  • How to Select a Hot Runner System for Paint Bucket Moulds

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    Paint buckets are large and thin-walled. A good hot runner fills them fast, with even walls and zero scrap runners. Here is how to pick the system. Start With Product Design The bucket’s size, wall thickness, and shape set the job. A 10L or 20L bucket needs several gates firing in balance. Otherwise the melt…

  • How to Pack a Jar PET Preform Mold

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    PET preform molds are heavy, precise tools. A jar preform mold weighs tons. Its cavities are polished, its neck rings delicate, its leader pins exact. Bad packing ruins all of that in one trip. Clean and Protect the Mold First Clean the mold fully before packing. Spray cavities and cores with rust-preventive oil. Coat moving…

  • 4 Common PCO 28mm PET Preform Injection Problems and Fixes

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    PCO 28mm is one of the most common neck finishes for beverage preforms. When injection problems appear, they usually fall into a few familiar patterns. Here are four common ones — with causes and fixes. 1. Whitening at the Preform Bottom A white, hazy patch at the base of the preform. The PET at the…

  • How to deal with transparent injection molding

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    Injection Molding Guide How to Deal With Transparent Injection Molding Transparent parts show everything. A black speck invisible in a black housing ruins a clear lens. Molding PMMA, PC, or PET means controlling the full chain — dry material, clean barrel, polished steel, and a process tuned for optics, not just dimensions. Table of Contents…

  • ribs of plastic part

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    Why Ribs Exist Plastic parts need stiffness, but solid thick walls are the enemy. They waste material, extend cooling time, and cause sink marks on the opposite surface. Ribs solve this. They are thin reinforcing walls molded into the part that add rigidity without the penalty of thick sections. A well-ribbed part can be several…