JUNZHIJIA
JUNZHIJIA protective cases
JUNZHIJIA · PROFESSIONAL PROTECTIVE CASES

Rugged Protection for What Matters Most

JUNZHIJIA hard cases — IP67 waterproof, dustproof and impact-resistant. Factory-direct OEM/ODM, wholesale and global supply from Zhongshan, China.

WHY JUNZHIJIA

Engineered Where It Counts

IP67 Rated Protection

Waterproof, dustproof and impact-resistant; drop-tested per MIL-STD-810H.

One-Piece Molding

Engineering PP / ABS with reinforced rib structure for long service life.

One-Stop Customization

Logo printing, custom foam inserts, colors and sizes on request.

Global Supply

Exported to 20+ countries across Europe, America, Japan, Korea and the Middle East.

150+
Product Models
18,000㎡
Factory Area
80+
Machines
20+
Countries Served
JUNZHIJIA factory
ABOUT US

Protection With Purpose

Zhongshan Junzhijia Plastic Products Co., Ltd. is a manufacturing enterprise integrating product design, injection molding, tooling, logo printing and custom foam inserts, delivering one-stop protective case solutions worldwide.

  • ISO9001, RoHS and IP67 certified
  • 20+ patents; quality meets demanding professional use
  • Wholesale, distribution, OEM and global supply
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Latest Articles

PP Plastic Case Care: MIL-STD-810H and IEC 60529 Thresholds
2026-10-26

PP Plastic Case Care: MIL-STD-810H and IEC 60529 Thresholds

A PP Plastic Case is serviced against three measured quantities, not a calendar: the pH and dwell time of the cleaning agent, the ultraviolet dose the surface has absorbed…

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PP Plastic Case in Cold-Chain Transfer at Minus 18 C
2026-10-26

PP Plastic Case in Cold-Chain Transfer at Minus 18 C

Four lines use the same box for different reasons, and the differences come down to ambient temperature, latch cycles per shift and how the liner meets the lid.…

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Three Rounds of Sampling: Sizing a Kids Tool Box Cavity
2026-10-26

Three Rounds of Sampling: Sizing a Kids Tool Box Cavity

A Kids Tool Box is sized backwards from the tool list, not forwards from a shell. Measure the longest tool and the loaded weight, set the cavity, lay out compartments…

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Case Warehouse Storage Cost: When Cheaper Options Win
2026-10-26

Case Warehouse Storage Cost: When Cheaper Options Win

Case warehouse storage is cheap or expensive by cost per cycle, not by price. A 168 CNY hard case used 30 times over five years costs 5.6 CNY a trip; a 22 CNY carton used once costs 22 CNY.…

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Case Warehouse Storage: Four Conditions, One Set of Limits
2026-10-26

Case Warehouse Storage: Four Conditions, One Set of Limits

Case warehouse storage has to be planned four times over. A cold room attacks latches at minus 25 C, a steel shed pushes air inside the case to 61 C, the export leg adds salt spray…

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Case Warehouse Storage: Test Four Things Before Comparing Rent
2026-10-26

Case Warehouse Storage: Test Four Things Before Comparing Rent

Do not open a case warehouse storage decision with rent per square metre. Start with four on-site tests: cost per case per month, creep at 38 °C, picks per hour, and a code readable at 1.5 m.

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