EV Plastic Battery Housing
EV Plastic Battery Housing is a lightweight, durable plastic casing that protects electric vehicle batteries from damage, moisture, and temperature changes, ensuring optimal performance and safety.
- Impact-Resistant – Withstands physical shocks and collisions.
- Weatherproof – Offers protection against rain and extreme temperatures.
- Energy Efficient – Optimizes battery performance and lifespan.
- Customizable – Tailored to fit various battery sizes and shapes.
- Non-Conductive – Prevents electrical issues and short circuits.
Automotive Connector Plastic Parts
Automotive Connector Plastic Parts are durable plastic components used to connect electrical systems in vehicles. They provide reliable, lightweight, and cost-effective solutions for linking various systems like lighting and sensors.
- Impact-Resistant – Withstands shocks.
- Weatherproof – Protects against moisture.
- Lightweight – Reduces vehicle weight.
- Customizable – Tailored for specific needs.
- Affordable – Lower cost than metal connectors.
Automotive Lighting Housing Molding
- High Precision – Ensures exact fit and function.
- Lightweight – Reduces overall vehicle weight.
- Weatherproof – Resists environmental factors like UV and moisture.
- Customizable – Adaptable to various vehicle designs and styles.
- Durable – Provides long-lasting protection for lighting components.
Automotive Bumper Plastic Molding
- Improved Safety – Minimizes damage during low-speed impacts.
- Precision Fit – Ensures accurate shapes and sizes.
- Rust-Free – No corrosion over time.
- Impact Absorption – Reduces force on the vehicle.
- Recyclable – Many plastic bumpers are eco-friendly.
Automotive Dashboard Plastic Components
Automotive Dashboard Plastic Components are durable, lightweight plastic parts used in car dashboards. They include panels, control housings, and trim, offering design flexibility and protection for various dashboard features. These components enhance both the functionality and appearance of the vehicle’s interior.
- Aesthetic Variety – Available in various colors, textures, and finishes.
- UV Protection – Resists fading from exposure to sunlight.
- Easy Maintenance – Simple to clean and maintain.
- Noise Reduction – Helps reduce interior noise levels.
- Environmental Sustainability – Can be made from recyclable materials.
Automotive Exterior Plastic Components
Automotive Exterior Plastic Components are lightweight, durable plastic parts used in vehicle exteriors. They are designed for performance and aesthetics, offering protection and enhancing the vehicle’s overall look. These components are manufactured using advanced techniques like injection molding, making them cost-effective and adaptable to various vehicle designs.
- Easy to Maintain – Simple cleaning and upkeep.
- Weather Resistant – Performs well in extreme conditions.
- Aesthetic Variety – Wide range of colors and finishes.
- Impact Absorption – Helps protect against minor collisions.
- Environmentally Friendly – Often recyclable materials.
Car Interior Injection Molded Parts
Car Interior Injection Molded Parts are plastic components made for vehicle interiors using injection molding. They offer durability, custom designs, and cost-effectiveness for parts like dashboards, door panels, and consoles.
- Precise Fit – Ensures accurate and smooth design.
- Customizable – Flexible design options for interiors.
- Lightweight – Reduces vehicle weight for better efficiency.
- Durable – Long-lasting and resistant to wear.
- Affordable – Cost-effective for large-scale production.
Automotive Plastic Parts Manufacturing
Automotive Plastic Parts Manufacturing creates lightweight, durable plastic components for vehicles using molding techniques. These parts improve performance, safety, and cost efficiency.
- Lightweight – Reduces vehicle weight for better efficiency.
- Cost-effective – Lower production costs than metals.
- Durable – Resistant to wear and impact.
- Flexible design – Can be molded into complex shapes.
- Fuel-efficient – Lighter parts improve fuel economy.
Connector Housings & Enclosures
Connector Housings & Enclosures are essential for protecting and organizing electrical connectors. These enclosures safeguard connectors from external elements while maintaining proper functionality and ensuring long-lasting performance. They are designed to enhance the reliability of electrical systems in various applications, offering both protection and support for connectors.
- Space-saving – Compact design for efficient use.
- Heat resistance – Withstands high temperatures.
- Waterproof – Protects against water exposure.
- Signal protection – Reduces interference.
- Corrosion-proof – Resists environmental damage.
Industrial Equipment Plastics
Industrial Equipment Plastics are high-performance plastic components designed for machinery, automation, and industrial systems. They provide durability, precision, and reliability, ensuring long-lasting performance in demanding environments.
- Durable – Heat, wear, and chemical resistant
- Lightweight – Strong yet reduces equipment weight
- Customizable – Various sizes, colors, and specs
- Precise Fit – Tight tolerances for accuracy
- Versatile – Suitable for gears, housings, and connectors
Consumer Electronics Molding
Consumer Electronics Molding is the injection molding process used to create plastic parts for electronics, like housings and buttons. It's fast, cost-effective, and ensures high-quality, durable components.
- High precision for complex designs.
- Fast production cycle for efficiency.
- Cost-effective for large-scale manufacturing.
- Wide material options for flexibility.
- Consistent quality across production runs.
Medical Plastic Components
Medical Plastic Components are high-quality plastic parts used in medical devices and equipment. These components are designed for precision, reliability, and safety in critical healthcare applications, providing cost-effective and efficient solutions for manufacturers.
- Resistant to corrosion and environmental damage.
- Offers high performance in medical applications.
- Supports efficient mass production of components.
- Provides excellent dimensional stability in devices.
- Ensures safe and long-lasting product usage.
Automotive Injection Parts
Automotive Injection Parts are precision components produced through injection molding, used in various automotive applications. This efficient process ensures high-quality, durable, and cost-effective parts for mass production.
- High precision for complex, intricate part designs.
- Cost-effective solution for mass production volumes.
- Versatile material options for various automotive needs.
- Fast production cycles for quick turnaround times.
- Lightweight yet durable parts for vehicle efficiency.
Material Versatility
Material Versatility allows the same process to work with metals, plastics, and composites, enabling flexible, efficient, and high-quality manufacturing.
- Works with multiple materials efficiently.
- Reduces production limitations.
- Enables cost optimization.
- Increases design flexibility.
- Speeds up prototyping and iteration.
Surface Finishing Options
Surface finishing options enhance a product's appearance, performance, and lifespan. By applying techniques like polishing, anodizing, and powder coating, manufacturers improve durability, aesthetic appeal, and functionality, offering customized finishes tailored to specific needs.
- Enhanced Durability – Improves wear and tear resistance.
- Aesthetic Appeal – Offers sleek, shiny, or vibrant finishes.
- Corrosion Resistance – Protects against rust and environmental damage.
- Improved Functionality – Adds special properties like conductivity or anti-slip.
- Customization – Offers a range of colors, textures, and finishes.
Custom Mold Design
Custom Mold Design is a tailored tooling solution developed to match your product’s exact structure, material, and production requirements. It ensures high precision, efficient manufacturing, and consistent quality, supporting everything from prototype development to mass production.
- High precision and tight tolerances
- Optimized production efficiency
- Long mold service life
- Supports complex part geometries
- Cost-effective mass manufacturing
Precision-Engineered Mould Solutions Tailored to Your Needs
The modern manufacturing industry comprises custom plastic injection moulds that allow producing high-quality and repeatable plastic parts in a diverse array of industries. We specialize in designing and production of precision injection moulds at SunOn Industrial Group Limited, specific to your product, application and production level.
SunOn has more than 25 years of experience in the industry and is a reliable OEM/ODM supplier who will provide you with the entire system (concept to finished product) at your idea. These could be either a new product or an optimization of an existing product, our in-house engineers and technicians would see to it that all the moulds are of your specifications as far as functionality, durability and performance is concerned.
Our Custom Mould Capabilities.
SunOn is a single roof company offering the full customization of plastic injection moulds:
- Product and Mold Design: We work in close consultation with the clients to comprehend the design purpose, functionality and manufacturability.
- Mold Flow Analysis: We optimize the design of a mold to constitute material flow, cooling, contraction and cycle of time with the help of a simulation software.
- Tooling & Fabrication: Precision mold components are produced in-house with CNC machining centers, EDM, wire-cutting and grinding.
- Trials of Injection Molding: We do extensive sampling and trials to make sure that all moulds satisfy the customer expectations before mass production.
- Revisions & Maintenance: Continuous assistance in mold changes, keeping of the tools and refurbishment lengthens the life of your tooling investment.
Equipment and Facilities
We have a 32, 000-square-meter plant in Dongguan, China that has:
- 89 injection molding machines (50T-1200T).
- 17 two color (2K) molding machines (120T-700T).
- 37 CNC machining centers
- 46 EDM machines
- 8 slow wire-cut machines
- CMM measurement and QC labs
In-house temperature controllers and drying systems of molds.
Our version of this highly developed infrastructure is easy lead times, small tolerances (±0.005mm), and uniform quality of parts in both small pilot and high volume output.
Materials and Applications
Our custom plastic injection moulds support a wide variety of engineering-grade thermoplastics including:
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ABS, PC, PP, PA, POM, PE, PMMA, TPU, TPE, and more
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High-performance resins for medical and automotive applications
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Flame-retardant, glass-filled, or UV-resistant compounds
Applications:
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Automotive dashboards, connectors, and housings
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Consumer electronics casings and internal components
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Medical device enclosures and disposables
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Industrial sensor housings and machine parts
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Household and kitchen appliance parts
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LED lighting fixtures and covers
Quality Assurance and Compliance
Quality is central to everything we do. Every custom plastic injection mould we manufacture is subject to rigorous quality control protocols, including:
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CMM (Coordinate Measuring Machine) dimensional inspection
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First Article Inspection Reports (FAIR)
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Sample Approval Process (T0–T3)
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Material and hardness verification
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Full traceability of components and tooling
We are ISO 9001 certified, and our materials and processes comply with RoHS, REACH, and relevant UL standards.
Advantages of Partnering with SunOn
✅ Full In-House Control
All critical steps—from mold design to plastic injection molding—are completed under one roof, giving you consistent quality and accountability.
✅ Speed and Flexibility
With in-house tooling and rapid prototyping, we minimize lead times and can quickly adapt to design changes or production demands.
✅ Cost Efficiency
Our optimized processes and strategic location allow us to offer competitive pricing without compromising quality.
✅ Engineering Support
We provide technical input on DFM (Design for Manufacturability), material selection, and mold optimization to ensure the success of your product.
Customization Options
Every product is different, and so is every mold. Our team will work with you to customize your injection moulds based on:
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Cavity number: single-cavity, multi-cavity, family mold
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Runner system: hot runner, cold runner, semi-hot
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Mold base type: standardized or fully custom
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Surface finish: mirror polish, textured, matte, or custom engraving
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Ejector systems: pin ejector, sleeve ejector, stripper plate
We also support overmolding, insert molding, and two-shot molding (2K) based on your part design and material requirements.
Industries We Serve
Our custom plastic injection moulds are trusted by companies in:
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Automotive (interior/exterior trim, lighting, fluid management)
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Medical Devices (diagnostic tools, single-use parts, enclosures)
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Consumer Electronics (housings, connectors, thermal management)
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Industrial Equipment (sensor housings, mounting systems)
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Smart Home Products (IoT devices, wearables, smart plugs)
We offer fast, competitive quotes and even free CNC-machined prototypes so you can evaluate fit, function, and finish before production. Whether you’re launching a new product or scaling up production, SunOn Industrial Group is your trusted partner for custom plastic injection moulds. With decades of experience, cutting-edge equipment, and full in-house capabilities, we deliver reliable, efficient, and high-quality tooling solutions to clients worldwide.
Let us bring your plastic components to life—with precision, performance, and partnership.
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