High-Precision Plastic Components Manufacturing
Metal Craft offers advanced, high-precision plastic injection molding services designed for demanding OEM applications across electrical, automotive, industrial, and consumer electronics sectors. With over 50 years of manufacturing excellence, our plastic molding division operates state-of-the-art automatic injection molding machinery capable of micro-precision molding and high-volume batch production.
We specialize in processing engineering-grade thermoplastics including ABS, Polycarbonate (PC), Nylon (PA 6/66), Polypropylene (PP), POM Delrin, and PBT. Backed by our in-house tool room for mold building and maintenance, we offer end-to-end solutions spanning part design optimization, rapid prototyping, metal insert molding, and ultrasonic assembly.
Key Capabilities & Services
Custom Injection Molding
Automated high-tonnage plastic injection molding machines producing micro to large precision plastic components with zero part flash.
Metal Insert & Overmolding
Seamless integration of threaded brass studs, copper contact terminals, and steel fasteners directly into molded plastic bodies.
Engineering Resin Selection
Comprehensive material expertise processing flame-retardant (UL94-V0), UV-stabilized, and glass-reinforced technical thermoplastics.
Surface Finishing & Assembly
Ultrasonic plastic welding, hot foil stamping, pad printing, custom color matching, and complete sub-assembly packaging.
Molding Specializations & Product Range
Electrical & Switchgear Parts
High DielectricFlame-retardant UL94-V0 rated plastic switch housings, terminal bases, insulating barriers, and relay frames.
- Materials: Polycarbonate (PC), PBT, Glass-Filled Nylon
- Property: Flame Retardant UL94-V0 & Arc Resistant
- Accuracy: Micron-level mold dimensional repeatability
Automotive Plastic Components
Impact ResistantDurable interior/exterior automotive plastic trims, clips, wire harness conduits, grommets, and dashboard brackets.
- Materials: ABS, PA6, PA66, Polypropylene (PP)
- Features: High impact strength & UV weathering resistance
- Compliance: OEM automotive material standards
Industrial Bushes & Gear Parts
Wear ResistantPrecision engineered self-lubricating wear bushes, gear wheels, structural spacers, and machinery guide blocks.
- Resins: POM Delrin, Nylon 66 + MoS2, PTFE filled
- Benefit: Low coefficient of friction & self-lubricating
- Tolerance: Sub-millimeter precision machining
Custom OEM Enclosures
Custom DesignTailor-made plastic enclosures, display frames, junction boxes, and overmolded sub-assemblies built to CAD drawings.
- Customization: Custom RAL color masterbatch matching
- Assembly: Ultrasonic welding, snap-fit locking, inserts
- Batch Run: Low-volume prototyping to mass molding
Our Plastic Molding Process
Mold Design & Resin Selection
CAD mold design, moldflow thermal analysis, and selecting optimal technical polymer resins.
Precision Injection Molding
Automated high-pressure injection molding, insert loading, and cycle parameter control.
Quality Inspection & Assembly
Dimensional CMM check, flash trimming, ultrasonic welding, and sub-component assembly.