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Industrial-Grade Protective Cases Built to Last

Premium plastic, aluminum, and waterproof enclosures for military, electronics, communications, and industrial applications. Trusted globally since 2017.

IP67 Waterproof Shockproof & Dustproof OEM/ODM Supported REACH & ROHS Certified
Hard Plastic Equipment Case
Factory Overview

About Sunyoung

Ningbo Sunyoung Enclosure Co., Ltd, founded in 2017, is a leading manufacturer and supplier of plastic cases, aluminum cases, junction boxes, and EVA bags.

Our products are widely used in military, electronics, communications, and industrial fields, and are exported to Europe, America, Southeast Asia, and beyond.

ISO9001, REACH, ROHS Certified
20,000 sqm Factory in Ningbo, China
Over 100 Employees & USD 7M+ Assets
Adjacent to Ningbo & Shanghai Ports

"With superior location, professional service, and a win-win philosophy, we are committed to mutual benefit and long-term cooperation."

Learn more about our factory and capabilities →

Our Product Range

From rugged plastic enclosures to precision aluminum cases, we offer a comprehensive range of protective solutions for every industry need.

Hard Plastic Equipment Case

Hard Plastic Equipment Case

  • High-impact Engineering PP/ABS
  • Shockproof, Dustproof, IP67 Waterproof
  • REACH & ROHS Certified
  • OEM/ODM Supported
Aluminum Case

Aluminum Case

  • Custom size, color, foam options
  • Portable & Lightweight
  • Premium finish & durability
  • Ideal for tools, instruments, and transport
Simple Plastic Carrying Case

Simple Plastic Carrying Case

  • High-impact PP Material
  • ROHS Certified
  • Custom foam, logo, and color available
  • Cost-effective solution
Plastic Waterproof Enclosure

Plastic Waterproof Enclosure

  • Economical & High-End Models
  • Engineer ABS & Modified PP
  • IP67 Rated Protection
  • For electronics and outdoor use
Die Casting Aluminum Enclosure

Die Casting Aluminum Enclosure

  • Precision-molded aluminum
  • High strength & thermal resistance
  • Customizable dimensions
  • For industrial electronics
Aluminum Extrusion Enclosure

Aluminum Extrusion Enclosure

  • Lightweight & corrosion-resistant
  • Custom profiles available
  • Excellent for control panels
  • Long lifespan
Trolley Tool Box

Trolley Tool Box

  • Full aluminum or plastic composite
  • Wheeled for easy transport
  • Multiple compartments
  • Secure locking system
Rotomolded Case

Rotomolded Case

  • Ultra-durable one-piece construction
  • Impact-resistant & waterproof
  • Custom foam inserts
  • For harsh environments

Why Choose RobustCasing?

Engineered for performance, durability, and customization.

Military-Grade Protection

Our cases meet IP67 standards for dust and water resistance, ensuring your equipment stays safe in extreme conditions.

Full Customization

We support OEM/ODM projects with custom logos, colors, foam inserts, mold design, and packaging to meet your exact needs.

Industrial Applications

Trusted in military, electronics, communications, and industrial sectors worldwide for reliable equipment protection.

Certified Quality

ISO9001, REACH, and ROHS certified manufacturing ensures compliance and environmental safety.

Global Export Ready

Based in Ningbo, China — one of the world’s busiest ports — we ship efficiently to Europe, Americas, and Southeast Asia.

Win-Win Partnership

We believe in long-term cooperation, offering not just products, but professional services and technical solutions.

2017
Founded
20,000+
Square Meters Factory
100+
Employees
50+
Countries Served

Frequently Asked Questions

We use high-impact engineering PP, ABS, modified PP, and aluminum alloys. All materials are REACH and ROHS compliant.
Yes, we support full customization including size, color, foam inserts, logos, and packaging. OEM/ODM services are available.
Our products are ISO9001, REACH, and ROHS certified. Many models meet IP67 waterproof and dustproof standards.
Please visit robustcasing.com to submit your inquiry or contact our sales team directly.

Get in Touch

Have a custom project or need a quote? Reach out to our team today.

Contact Information

Visit Us

Sales Office:
Room 1609, LangMu Building,
No. 515 Renhe Road, Cixi,
Ningbo, Zhejiang, China

Factory:
No. 482 Zhangxin North Road,
XiaoLin Industrial Zone, Cixi,
Ningbo, China

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