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MOTEK
CHINA

One-Stop Injection Molding & Metal Parts Solution

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Precision Integration of Plastics & Metal

In the manufacturing of complex products, the seamless integration of plastic and metal components is critical to defining functionality, durability, and perceived quality. However, the traditional supply chain model—sourcing injection molding, metal stamping, and secondary processing from separate vendors—often leads to significant challenges: interface mismatches, assembly difficulties, blurred responsibilities, delayed timelines, and rising overall costs.

At MOTEK, we understand this core challenge intimately. We now introduce our "Precision Molding + Metal Components Integration" One-Stop Solution. We are more than just your plastic parts supplier; we are the master systems integrator for your plastic-metal assemblies, simplifying the manufacturing of complex products to be efficient, reliable, and straightforward.

Our Core Metal Components & Services

We leverage integrated supply chain management and in-house engineering expertise to provide a wide range of precision metal parts:

1. Precision Stamping Parts

Product Range: From micro-contacts, terminals, and shielding cans to structural brackets, housing covers, and decorative nameplates.

Capabilities: High-speed stamping, progressive dies, precision machining, tapping, riveting, and surface finishing (plating, powder coating, passivation, etc.). Materials: Stainless steel, galvanized steel, copper alloys, aluminum alloys.

2. Metal Elastic Components

Key Products: Compression springs, extension springs, torsion springs, wave springs, disc springs, contact strips/spring contacts. Applications: Providing critical functions such as push-button resetting, electrical contact, pressure buffering, and axial positioning for plastic assemblies.

3. Tube Bending & Wire Forming Parts

Materials: Metal tubes, rods, and wires.

Forming Capabilities: 2D & 3D precision bending, with secondary operations like flaring, swaging, flattening, and drilling. Ideal for conduits, support rods, handles, and connectors.

4. CNC Machined Precision Parts

Ideal For: Critical metal components requiring extremely high precision, complex geometries, or low-volume production. Scope: CNC turning, milling, drilling, and tapping of aluminum, copper, stainless steel, etc., for high dimensional accuracy and surface finish.

5. Standard Parts & Inserts

Supply: Standard fasteners such as screws, nuts, washers, and pins. Value-Added

Services: Ultrasonic/thermal insertion and overmolding (insert molding) for integrating metal inserts to enhance local strength or create reliable threaded connections in plastic parts.

Our Services

Our Integrated Service Flow

From Concept to Assembly

Phase 1:

Co-Design & Feasibility Analysis

Our plastic and metal engineers engage jointly from the project's inception. We conduct comprehensive design reviews focusing on material compatibility, assembly tolerances, stress analysis, and thermal expansion.

We propose the most cost-effective and reliable integration methods (snap-fits, screws, rivets, ultrasonic welding, press-fits, etc.).

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Phase 2:

Concurrent Development & Prototyping

Plastics Side: Develop injection molds and conduct trial runs and sample validation.

Metal Side: Simultaneously develop stamping dies, bending fixtures, or CNC programs to produce metal prototypes.

Integrated Validation: Provide complete plastic-metal assembly prototypes for joint validation of dimensions, function, and durability (e.g., mating tests, fatigue tests), ensuring systemic compatibility.

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Phase 3:

Integrated Production & Assembly

Supply Chain Management: We manage all metal parts suppliers, quality control, and on-time delivery.

Flexible Supply Models: Choose the option that best fits your needs:

Fully Assembled Units: We deliver tested, ready-to-use complete assemblies.

Kitted Components: All plastic and metal parts are cleaned, sorted, and packaged together for your efficient assembly.

Individual Components: Supply plastic and metal parts separately per your supply chain requirements.

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Phase 4:

Systemic Quality Management

Establish unified incoming, in-process, and outgoing quality inspection standards.

Perform final assembly testing on critical dimensions and functions to ensure consistent quality of every delivered unit.

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Target Industries & Applications

Our plastic-metal integration solutions are widely applied across industries:

Home Appliances

Fan impellers with metal heat sinks, power connectors with stamped contacts, control panels with glass and metal trims, coffee machine metal brew group assemblies.

Consumer Electronics

Devices with metal hinges and shafts, housings with internal antenna contacts, wearables with charging pins, power bank cases with internal metal brackets.

Industrial Equipment

Instrument housings with internal metal frames, control boxes with metal handles and locks, fluid control valves (plastic body + metal valve core/fittings).

Furniture & Office

Chair backs/armrests with metal adjustment mechanisms, composite material lighting fixtures, storage boxes/cabinets with metal fasteners.

The Core Value of Choosing MOTEK

Single Point of Accountability: One interface assumes full responsibility for the final assembly's function, eliminating blame games and multiplying communication efficiency.

System-Optimized Design: Plastic and metal components are co-optimized from the design stage, achieving synergistic performance and reliability (1+1 > 2).

Significantly Reduced Time-to-Market: Concurrent development and management eliminate cross-vendor delays and iterations, accelerating product launch by 30%-50%.

Lower Total Cost of Ownership: Reduces your costs for supplier management, logistics, quality disputes, and inventory.

End-to-End Quality Control: A unified quality system oversees the entire process, mitigating risks upfront and ensuring clear traceability.

Let professional integration unlock product excellence. MOTEK masters the art of fusing plastic and metal seamlessly. We handle the complexity, delivering simplicity, reliability, and efficiency to you.

Contact us today to request industry case studies and begin an efficient collaboration journey for your next integrated product!