Insert Molding Services
Metal and other inserts molded directly into plastic. Strong, integrated assemblies in one production step.
Insert Molding Applications
Types of inserts and applications for insert molding.
Threaded Inserts
Strong threads for repeated assembly, brass or steel inserts for plastic parts.
Bushings & Bearings
Self-lubricating, metal-backed, and wear surfaces for moving applications.
Electrical Contacts
Terminals, connectors, and conductive elements for electrical applications.
Insert Molding Benefits
Advantages of molding inserts directly into plastic parts.
Strong Assembly
Inserts are permanently locked in place by the plastic, creating strong assemblies.
Reduced Labor
Eliminate secondary insertion operations and manual assembly steps.
Precision Placement
Inserts are placed with high precision in the mold, ensuring accurate positioning.
Cost Savings
Lower total cost through reduced assembly and improved production efficiency.
Design Flexibility
Combine plastic and metal properties in ways not possible with separate parts.
Reliability
Consistent quality and reduced risk of insert failure compared to post-molding insertion.
Industries Using Insert Molding
Common industries and applications for insert molding.
Key Industries
- Automotive - fasteners, bushings, sensors
- Electronics - connectors, terminals, housings
- Appliances - handles, mounts, fasteners
- Medical - device components, mounts
- Industrial - machine parts, equipment
- Consumer products - hardware, assemblies
Insert Materials
- Brass - corrosion resistant, excellent threads
- Steel - high strength, cost-effective
- Stainless steel - corrosion resistant, sanitary
- Aluminum - lightweight, heat dissipating
- Copper - electrical conductivity, heat transfer
- Special alloys - high performance requirements
Frequently Asked Questions
Everything about insert molding services.
For Engineers
What insert materials work best?
Brass, steel, stainless steel, aluminum, and copper inserts work well with compatible plastic materials.
What tolerances are achievable?
Insert position tolerances of ±0.05mm typical, with thread quality to Class 6H or better.
How are inserts placed?
Manual or automated insertion in the mold. We use precision fixtures for high-volume production.
For Procurement
What's the minimum order quantity?
No minimum for production. From prototype quantities to millions of units.
How does pricing compare?
Insert molding costs more upfront but eliminates post-molding insertion labor costs.
What's the lead time for tooling?
Insert molding tooling typically takes 8-12 weeks. Prototype tooling available in 4-6 weeks.
For Decision Makers
Why choose insert molding?
Stronger assemblies, reduced labor, improved precision, and lower total cost for high volumes.
What's the ROI?
Typically 30-50% savings vs. post-molding insertion with improved quality and consistency.
Can we qualify multiple inserts?
Yes, family molds can accommodate multiple insert configurations for product families.
Frequently Asked Questions
Quick answers to common questions from engineers, procurement, and decision makers
For Engineers
What tolerances can you achieve for complex geometries?
We achieve tolerances up to ±0.005mm on critical features using 5-axis CNC and EDM processing. Our DFM analysis helps optimize designs for manufacturability.
Do you provide mold flow analysis before production?
Yes, comprehensive mold flow analysis is included free with every project. We simulate filling patterns, identify potential defects, and optimize gate locations.
What materials do you recommend for high-stress applications?
We offer ABS, PC, POM, Nylon, PP, and engineering resins. For high-stress parts, we recommend glass-filled or carbon-filled polymers with reinforced fillers.
For Procurements
What are your minimum order quantities?
No minimums! We support startups and small businesses with orders from 1 piece to millions. Volume discounts available for larger orders.
How fast can you deliver production parts?
Prototype molds in 7-15 days. Production parts in 2-3 weeks after mold approval. Express services available for urgent projects.
Do you offer competitive pricing for high volumes?
Yes! Our pricing scales with volume. Contact us for a customized quote. We beat OEM pricing by 20-40% while maintaining premium quality.
For Decision Makers
Why choose CoreLMould over other suppliers?
15+ years experience, ISO 9001 certified, zero-defect culture, 24-hour quote response, and a dedicated team committed to your success.
How do you ensure quality consistency across batches?
Statistical process control, incoming material inspection, in-process checks, and final QC with CMM verification. Full traceability from raw material to finished goods.
What industries do you serve?
Consumer electronics, automotive interiors, industrial equipment, medical devices, packaging, and more. We specialize in startups and growing businesses.
Insert Molding Success Stories
Strong integrated assemblies for demanding applications
Automotive Sensors
Brass inserts in 1M+ sensor housings for automotive applications
Industrial Equipment
Steel bushings in 100K+ equipment mounts for heavy-duty applications
Medical Devices
Stainless steel inserts in 50K+ surgical device components
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Tell us about your insert molding requirements.
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