ESD Rigid Box + Custom Foam + Shielding Vacuum Bag 2026-07-24

Packaging Solution for Precision Electronics

Case Summary

A European customer needed to ship precision electronic products to the United States for delivery. Based on the requirements for ESD protection, product positioning, dust and moisture control, and delivery reliability, YUFA POLYMER provided a modular shipping packaging solution using an ESD Small Component Box as the rigid protective shell, custom ESD Foam Inserts for internal positioning and cushioning, and optional shielding vacuum bags when additional outer protection is required.


1. Project Background

This case came from an actual shipping requirement from a European customer. The customer needed to ship products to the United States for delivery, and the packaging solution had to support long-distance transportation while providing ESD protection, mechanical protection, product fixation, and overall packaging integrity.

The core packaging concept was to place the product into an ESD Small Component Box fitted with ESD Foam Inserts. Once the lid is closed, the box forms a rigid protective package. If required, a shielding bag can be added outside the box and vacuum packed to improve electrostatic shielding, cleanliness protection, and delivery stability.

2. Customer Packaging Challenges

· The product needed to remain stable during cross-regional transportation and avoid movement, impact, scratching, or localized pressure.

· The product required ESD protection, making ordinary plastic containers unsuitable as final shipping packaging.

· The packaging needed sufficient structural strength to protect the product during master carton packing, storage, and logistics handling.

· The customer wanted a repeatable and adjustable packaging structure that could be used for products with different sizes or shapes.

· In some shipping scenarios, the customer may require additional dust protection, moisture protection, or a higher level of outer shielding protection.

3. YUFA POLYMER Solution

YUFA POLYMER defines this approach as an “ESD Rigid Box + Custom Foam + Shielding Vacuum Bag” packaging solution for precision electronics shipping. It is not a fixed single package, but a modular solution that can be simplified, combined, or customized according to product size, value, sensitivity, transportation distance, and customer packaging standards.

Packaging Layer

Product Supplied

Main Function

Configuration

Internal positioning protection

ESD Foam Inserts

Custom-cut inserts position the product and reduce movement, impact, and scratching risks.

Recommended

Rigid protection layer

ESD Small Component Boxes

Provide rigid ESD protection; the closed lid forms a stable protective shell. Injection-molded structure offers good strength and stackability.

Core module

Outer shielding protection

Shielding bags for vacuum packaging

Add outer electrostatic shielding, dust protection, moisture protection, and packaging integrity when needed.

Optional module


4. Solution Structure



4.1 ESD Small Component Boxes: Rigid ESD Protective Shell

ESD Small Component Boxes serve as the middle packaging layer, providing both rigid protection and ESD container functionality. After the lid is closed, the box helps reduce product exposure, product loss, and transportation impact risks. Depending on the model, lid structures include separate lids and hinged lids.

· Injection-molded structure provides stable dimensions and is suitable for repeated use and standardized management.

· All listed models come with lids and support stacking, making them suitable for storage, preparation, and batch shipping management.

· Different ESD Small Component Box models can be selected according to product dimensions, helping avoid oversized packaging or insufficient protection.

· Suitable as a rigid protective packaging unit for precision electronics, electronic modules, and small components.

4.2 ESD Foam Inserts: Custom Internal Protection Based on Product Shape

ESD Foam Inserts are the key customized part of this solution. The foam can be cut or shaped according to the product outline, thickness, fragile areas, pins, connectors, and required loading quantity per box, allowing the product to remain stable inside the box.

· Custom-made according to product shape, supporting single-piece positioning or multi-piece separation.

· Helps reduce transportation vibration, product-to-product friction, terminal deformation, and surface scratching.

· The foam contact area and clearance positions can be adjusted based on exposed solder joints, gold fingers, pins, optical surfaces, or other sensitive structures.

· Suitable for small-batch, multi-model, sample delivery, or high-value product shipping packaging.

4.3 Shielding Vacuum Bags: Optional Outer Protection

Shielding bags are not required in every application. They are an enhancement option. When the product requires a higher level of electrostatic shielding, dust protection, moisture protection, export transportation protection, or packaging integrity, a shielding bag can be added outside the ESD Small Component Box and vacuum packed.

· Suitable for long-distance transportation, cross-border delivery, humid environments, or orders requiring outer shielding packaging.

· Can be used as part of the final shipping package to improve packaging integrity and delivery perception.

· For products with higher moisture sensitivity, desiccants and humidity indicator cards can be added according to customer specifications.

· Vacuum level should be confirmed according to the product’s pressure tolerance to avoid excessive pressure on precision parts.

5. Optional Packaging Combinations

Combination

Suitable Application

Description

ESD Small Component Box + ESD Foam Inserts

Internal transfer, short-distance transportation, or shipments without high moisture protection requirements

Core protection using a rigid box and custom foam, combining ESD protection, fixation, and impact protection.

ESD Small Component Box + ESD Foam Inserts + Shielding Bag

Export shipping, customer-required outer shielding packaging, or higher-value products

Adds outer electrostatic shielding and packaging integrity for more formal delivery scenarios.

ESD Small Component Box + ESD Foam Inserts + Shielding Bag Vacuum Packing

Long-distance cross-border delivery, higher dust/moisture protection requirements, or more stable outer packaging needs

Reduces air and moisture exposure based on outer shielding protection, suitable for higher protection requirements.

Simplified or combined according to product needs

Products with different dimensions, values, and protection requirements

The solution is flexible and can be adjusted according to actual risk level and cost targets.


6. Available ESD Small Component Box Models

Because ESD Small Component Boxes are injection-molded products, YUFA POLYMER can provide multiple existing models for customer selection. All models listed below come with lids and support stacking. Lid structures vary by model and can be selected according to the actual packaging method.

No.

Model

External Dimensions (mm)

Internal Dimensions (mm)

Weight (kg)

Remark

1

IMB-106

205×125×50

193×114×42

0.25

Separate lid; stackable

2

IMB-106-2

230×160×65

220×150×55

0.35

Separate lid; stackable

3

IMB-19012060

190×120×60

140×90×40

0.10

Hinged lid; stackable

4

IMB-1409538

140×95×38

135×90×31

0.10

Hinged lid; stackable

5

IMB-1108045

110×80×45

105×75×40

0.08

Hinged lid; stackable

6

IMB-1008533

100×85×33

96×80×26

0.06

Hinged lid; stackable

7

IMB-746348

74×63×48

70×58×44

0.04

Hinged lid; stackable

8

IMB-745329

74×53×29

70×48×20

0.03

Hinged lid; stackable

9

IMB-795429

79×54×29

75×48×25

0.03

Hinged lid; stackable


7. Suitable Product Types

Based on its ESD protection, rigid structure, custom internal positioning, and optional outer shielding vacuum packaging, this solution is suitable for high-value, ESD-sensitive, structurally precise, or higher-standard delivery products. Typical applications include:

· Precision electronic modules, sensor modules, communication modules, RF modules, and optoelectronic modules.

· Small PCBA boards, small boards with connectors or gold fingers, test samples, or engineering samples.

· Semiconductor samples, IC samples, MEMS devices, and other ESD-sensitive small devices.

· Medical electronics, automotive electronics, industrial control electronics, and components with higher delivery reliability requirements.

· Small-batch high-value products requiring cross-border transportation, higher customer acceptance standards, or better packaging presentation.

8. Solution Value

Value Point

Description

Reduced ESD risk

ESD Small Component Boxes, ESD Foam, and shielding bags can form a multi-layer ESD protection approach for ESD-sensitive product shipping.

Enhanced transportation protection

The rigid box provides structural protection, while custom foam fixes the product and reduces vibration and impact risks during transportation.

Improved packaging standardization

Multiple box models are available, and foam can be customized by product, allowing the same packaging logic to be reused across different product series.

Modular cost control

Shielding bags and vacuum packing can be optional, allowing customers to decide based on product value and transportation risk.

Improved delivery presentation

Compared with simple bag packaging or basic foam packaging, this solution is more suitable for formal delivery of high-value precision electronic products.


9. Customer Selection Guidance

Customers can decide whether to adopt the full packaging structure based on product value, ESD sensitivity, transportation distance, moisture protection requirements, and delivery standards. For high-value, ESD-sensitive, structurally precise products or products requiring cross-border delivery, the basic combination of ESD Small Component Box + custom ESD Foam Inserts is recommended as the first choice.

If a higher level of outer electrostatic shielding, dust protection, moisture protection, or packaging integrity is required, a shielding bag can be added, and vacuum packing can be selected according to the product’s pressure tolerance. For ordinary low-value components or products used only for short-distance internal transfer, the packaging structure can be simplified to balance protection performance and packaging cost.

10. Conclusion

Conclusion

The “ESD Rigid Box + Custom Foam + Shielding Vacuum Bag” solution is suitable for shipping precision electronic products, electronic modules, semiconductor samples, small PCBAs, and other high-value ESD-sensitive products. YUFA POLYMER can provide ESD Small Component Boxes, custom ESD Foam Inserts, and shielding bags for vacuum packaging, with the solution simplified, combined, or customized according to actual product requirements.


11. Company Information

Email: info@yufapolymer.com

Web: www.yufapolymer.com

Location: Shenzhen, China


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