ARLEX Optical Precision Solutions

Optical & Eyewear Injection Molding Solutions

Precision injection molding machines for eyeglass frames, sunglasses, temples, and high-precision optical components. Eyewear combines micro-shot weights with ultra-high visible surface quality, narrow flow paths, and strict dimensional stability requirements.

Get Eyewear Machine Configuration Recommendation

Beyond Weight & Tonnage: Key Optical Quality Factors

1. Surface Excellence

Eliminating flow marks, weld lines, sink, gloss variation, and burn marks on high-visibility frame fronts.

2. Thin Sections & Flow

Controlling injection response and velocity profiles for long flow paths through thin rim geometries.

3. Warpage Control

Balancing mold temperature, holding pressure, and cooling symmetry to guarantee lens-fit accuracy.

4. Micro Shot Matching

Matching precision small-diameter screws to prevent resin thermal degradation during residence time.

Optical & Eyewear Component Applications

Optical Eyeglass Frames

Full-rim, children's, fashion, and reading glass frame fronts.

Precise pressure transfer for exact lens groove dimensions and bridge symmetry.
Optimized plasticizing to prevent cosmetic flow defects on curved surfaces.

Sunglasses & Sports Eyewear

Curved sunglass fronts, sports frames, and protective eyewear accessories.

Balanced cooling design prevents post-ejection curvature warping.
Process consistency for tough engineering resins like PC and TR90/PA.

Eyewear Temples & Insert Parts

Single-material temples, metal-insert molded stems, and hinge components.

High-speed injection profiles handle high length-to-thickness flow ratios.
Insert protection features for seamless metal core wire and hinge integration.

Multi-Component & Optical Housings

2-color frames, soft-touch nose pads, and sensor optical enclosures.

Multi-injection unit architectures for rotating mold or overmolding processes.
Ultra-clean melt preparation for transparent and optical-grade components.

Engineering Tip: Avoid Oversized Injection Units for Lightweight Parts

Eyewear parts are lightweight. Choosing an oversized injection unit causes tiny metering strokes and long resin residence times, leading to thermal degradation, yellowing, and surface voids. ARLEX precisely matches the screw diameter to your total shot weight (parts + runner).

Frequent Color Change Efficiency: For fashion eyewear operations running multiple colorways, barrel cleaning design, purging efficiency, and hopper loading strategies are factored into our cell design to minimize downtime and resin waste.

ARLEX Eyewear Project Evaluation Sequence

1. Surface & Geometry Audit → 2. Resin Grade & Drying → 3. Precise Injection Unit Sizing → 4. Mold Sequence & Temp Control → 5. Optimized Molding Platform

Discuss Your Optical & Eyewear Molding Project

Submit your component specifications, resin information, and surface requirements for a customized engineering proposal.