Injection Molding Service
Custom injection molding for plastic prototypes and on-demand production parts—delivered in as little as five business days. ISO 9001, ISO 13485, and IATF 16949 certified. Includes a free DFM report and Moldflow simulation.
22+
Over 22 Years of Experience in Injection Molding
3000+
Trusted by 3,000+ Enterprise Customers Worldwide
10000+
Completed 10,000+ Custom Injection Molding Projects
22+
Over 22 Years of Experience in Injection Molding
Custom Injection Molding Services
We deliver complete injection molding solutions—from rapid prototyping to high-volume production—with optional assembly services. Our plant features presses from 100–500 T and 500–650 T, up to 1,000 T, allowing us to run parts of virtually any size and complexity.
Capable of producing 100,000 parts per day, we excel at engineering-grade components, two-shot molding, and precision aesthetic parts. With the ability to mold pieces up to 1.2 m long, we ensure efficient, high-quality manufacturing tailored to your most demanding projects.
Injection Molding
Processes
Transition seamlessly from prototyping to on-demand production—get affordable, high-quality molded parts in days. Plus, when you switch to on-demand manufacturing, we’ll waive your prototyping tool cost.
Plastic injection Molding
Our injection molding service produces high-precision, durable plastic parts—whether you need a handful of prototypes or hundreds of thousands of units. With an extensive materials portfolio and cutting-edge molding techniques, we deliver consistent quality and efficiency across every industry.
Silicone Rubber InjectionMolding
Ideal for flexible, heat-resistant, and long-lasting components, our silicone rubber injection molding delivers high-quality parts in just two weeks. Perfect for medical, food-grade, and sealing applications, it provides unmatched elasticity and durability.
Insert Molding
Insert molding boosts part strength by embedding metal or other materials directly into plastic components—ideal for electrical connectors, automotive parts, and structural applications demanding exceptional durability and performance.
Over Molding
By fusing multiple materials in one mold, our overmolding process delivers superior grip, durability, and visual appeal. It’s ideal for soft-touch handles, protective casings, and multi-material assemblies—elevating both functionality and user experience.
Injection Molding Parts
Cases
Leading Edge’s mold engineering team guides your project from concept to production-ready design, offering expert DFM support and mold-flow analysis to ensure flawless manufacturability.
Ready to Start your Injection Molding Project?
Upload your design files to receive instant pricing and lead times. Our team is ready to help you bring your parts to life.
Our Injection Molding
Capabilities
From rapid prototypes to high-volume runs, our adaptable injection molding solutions deliver precision parts with accelerated lead times and tailored specifications. Plus, we offer comprehensive secondary operations to address every facet of your project’s needs.
Category
Details
Lead Time
Starts at 5 business days; most orders within 15 days.
Materials
ABS, PC, PP, PA, POM, PBT, PE, PS, TPU, PEEK, PPS, and custom resins.
Machines & Mold Types
50T – 1100T machines; single/multi-cavity & family molds; steel & aluminum molds.
Part Size Range
5 × 5 × 5 mm to 1200 × 1000 × 500 mm
Tolerances & Precision
Mold cavity tolerance ±0.02 mm; part repeatability ±0.1 mm.
Wall Thickness & Features
0.5 mm – 5 mm walls; 0.5° – 2° draft; undercuts, ribs, gussets, bosses.
Production Volumes
Prototype to mass production (up to 100,000+ cycles).
Secondary Operations
Mold texturing, pad printing, laser engraving, threaded inserts, assembly.
Materials for Injection
Molding
Discover our suite of commonly molded plastics—each detailed with key grades, top brands, and their strengths and trade-offs—so you can confidently select the ideal resin to meet your application’s exact performance requirements.
Category
Materials
Tooling Materials
Tool Steel: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738
Stainless Steel: 420, NAK80, S136, 316L, 316, 301, 303, 304
Aluminum: 6061, 5052, 7075
Rigid Plastics
ABS, ASA, CA, HDPE, LCP, LDPE, PA6, PA6/6, PARA, PBT, PBT-PET, PC, PC-ABS, PC-PBT, PC-PET, PCT, PE, PEEK, PEI, PE-PP, PE-PS, PES, PET, PLA, PMMA, POM, PP
Elastomers & Rubbers
EPDM, PEBA, PVC, TPE, TPU, TPV, LSR
