About Our Plastic Injection Molding Factory
A practical manufacturing partner for custom plastic housings, enclosures and OEM plastic parts.
We support customers with in-house mold tooling, injection molding production and repeat manufacturing of custom plastic parts based on drawings, 3D files or samples.
Our customers usually need a reliable factory to develop the tooling, keep it in production condition and supply finished plastic parts over time. That is the role we focus on.
Who We Are
We are a custom plastic injection molding factory in China with our own mold department and in-house production team. Our work is focused on developing tooling and manufacturing plastic housings, covers, enclosures and other OEM plastic components for overseas customers.
Rather than operating as a mold-only supplier, we support projects from tooling development to repeat injection molding production. This makes us suitable for customers who need a stable factory for long-term plastic part supply.
- Custom Plastic Injection Molding
- In-House Tooling Support
- OEM Plastic Parts Production
- Long-Term Manufacturing Cooperation
What We Manufacture
Our production focus is on custom injection-molded plastic parts used in customer products and equipment. Most projects are developed based on drawings, samples or application requirements.
Plastic Housings & Covers
Custom housings, covers, shells and enclosures for product assemblies and equipment.
Electronic Enclosures
Plastic enclosures and structural components for electronic and control-related products.
Industrial Plastic Parts
Functional plastic components such as covers, guides, supports and mounting parts for industrial use.
Handles, Grips & Knobs
User-contact plastic parts for tools, equipment and consumer products.
Insert-Molded Components
Plastic parts combined with metal inserts, pins, sleeves or terminals.
OEM Custom Plastic Parts
Drawing-based and sample-based custom plastic parts for ongoing production projects.
How We Work With Customers
Our work usually starts from a drawing, 3D file or sample and continues through tooling, molding and repeat production. The tooling is maintained at our factory so production can continue more efficiently and repeat orders can be supported more consistently.
Project Review
Review drawings, product requirements, materials and expected order quantity.
Tooling Development
Develop the production mold in-house according to the part structure and molding needs.
Sample Trial
Run mold trials, inspect samples and confirm the molded part condition.
Injection Molding Production
Produce the approved plastic parts according to the order schedule.
Secondary Processing
Support available processes such as printing, painting, insert installation, ultrasonic welding or simple assembly.
Repeat Order Supply
Maintain the mold at the factory for stable repeat production.
Inside Our Factory
Our factory combines mold support and injection molding production in one workflow, helping us manage the process from tooling preparation to finished plastic parts.
Practical Manufacturing Capacity
Our factory structure is designed for practical project execution. With in-house tooling support and injection molding production, we are able to support custom plastic part manufacturing from development to long-term repeat supply.
Why Customers Work With Us
Parts-Focused Manufacturing
We focus on producing finished plastic parts for customer products, not simply supplying molds as standalone products.
In-House Tooling Support
Our mold department supports tool development, adjustment, maintenance and long-term production use.
One Factory, One Workflow
Tooling, molding, inspection and available secondary operations are coordinated within one production system.
Suitable for Repeat Orders
The mold remains available at our factory, making repeat production and purchasing more efficient.
Drawing & Sample Based
Customers can start with drawings, 3D files or physical samples for custom manufacturing projects.
Direct Communication
Customers communicate directly with the factory team for project follow-up and production coordination.
Quality Control in Daily Production
Quality control runs through sample confirmation, molding production, secondary processing and final inspection before shipment. We inspect parts according to the approved sample and the practical requirements of each project.
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Incoming Material Check
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First Sample Review
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Appearance & Dimensional Inspection
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Assembly Fit & Packaging Check
Applications We Support
Electronic Products
Plastic housings and enclosures for electronic assemblies and control-related products.
Industrial Equipment
Covers, structural parts and functional plastic components for equipment use.
Tools & Hardware
Handles, grips, knobs and supporting parts for tools and hardware products.
Consumer Products
Custom plastic parts used in daily-use and general consumer applications.
Business Machines
Plastic housings and structural parts for equipment and machine-related products.
Garden & Outdoor Products
Plastic covers, grips and functional parts for outdoor-use product lines.
Building Products
Plastic covers, mounting parts and support components for practical installation use.
General OEM Products
Custom plastic components developed for customer-specific product projects.
From Tooling to Finished Plastic Parts
Our work is built around practical manufacturing execution. From tooling preparation to molded plastic parts and final packing, each project moves through a coordinated production process inside the factory.
A Team Focused on Project Execution
Our team supports customers through project review, tooling follow-up, production coordination and shipment preparation. For custom plastic part projects, stable communication is an important part of smooth manufacturing.
Project Review Support
Production Coordination
Order Follow-Up
Looking for a Reliable Plastic Injection Molding Partner?
If you are developing a plastic housing, enclosure, cover or other OEM plastic part, send us your drawing, 3D file or sample. We can review your project and discuss tooling and production support.
Email Us
sales@spring-sky.com
Call Us
18025843168
Factory Location
Building A4, Xufa Science & Technology Park, Mashantou, Gongming, Guangming District, Shenzhen, Guangdong, China