FAQ

PP (Polypropylene) is lightweight (density 0.90g/cm³), offers excellent impact resistance, and is food-grade eco-friendly. ABS is harder (density 1.05g/cm³), has a high-gloss finish, and superior dimensional stability. Choose PP for outdoor use; choose ABS for precision equipment.

Consider three factors when choosing a protective case size:

1) Equipment external dimensions plus 3-5cm clearance;
2) Whether foam inserts are needed;
3) Portability requirements.

Measure your equipment's maximum length, width, and height, then select a model with slightly larger internal dimensions.

Series 8 is the flagship line with IP67 waterproof/dustproof rating, pressure relief valve, and 14 models. Series 1 is the classic line with lightweight durable PP material and approximately 20 models. Series 8 offers higher protection; Series 1 offers better cost-effectiveness.

Series 8 protective cases achieve IP67 waterproof standard, capable of immersion in 1m water depth for 30 minutes. Other series offer basic splash resistance. For underwater use, choose Series 8.

Protective cases focus on equipment protection with sealed dustproof and waterproof features. Tool cases focus on tool organization with multiple compartments and tray designs. Series 0 and 7 are tool cases; Series 1/2/6/8 are protective cases.

Yes, we support OEM/ODM customization. OEM MOQ is 500 units; ODM (custom mold development) MOQ is 2,000 units. Customization options include color, logo, foam inserts, and size adjustments.

Yes. We offer foam insert customization services and can precisely cut foam to match your equipment shape. Provide your equipment's 3D dimensions or the physical item, and we will design an exclusive insert solution for you.

Logo customization is supported. Techniques include:

• Screen Printing: Economical, suitable for large batches
• Heat Transfer: Rich colors, suitable for complex patterns
• Laser Engraving: Permanent and clear, suitable for premium positioning
• Embossed Logo: 3D effect, suitable for brand customization

Prices vary by technique. Feel free to inquire.

• OEM customization (existing model with color/logo changes): 15-20 days
• ODM customization (new mold development): 45-60 days
• Foam insert customization: 7-10 days

Actual timing depends on order quantity and customization complexity.

Contact us through the following channels. Provide the required model and quantity, and we will respond with a quotation within 24 hours:

• Online inquiry form: Get Quote
• Phone: 0757-88793275
• WeChat: 13531350189
• Email: service@qqdaa.com

• In-stock models minimum: 50 units
• Custom models minimum: 500 units (OEM) / 2,000 units (ODM)
• Sample orders: single unit purchase available

Yes. We offer paid sample service with sample fees ranging from 50-200 RMB depending on the model. The sample fee can be deducted from your formal order payment.

• Domestic Customers: Bank transfer, Alipay, WeChat Pay
• International Customers: T/T wire transfer, PayPal, Western Union

Specific payment terms can be negotiated upon order confirmation.

Yes, we ship globally. We currently export to 11+ countries and regions including the USA, UK, Germany, Canada, Japan, Russia, Philippines, India, Middle East, and Europe. Shipping is available via sea, air, and express courier.

Each protective case is individually bagged, packed 5-10 units per carton (five-layer corrugated carton), wrapped with stretch film. Large orders are palletized to ensure safe transport.

• Domestic Courier: 2-5 days
• International Sea Freight: 15-35 days
• International Air Freight: 5-10 days
• International Express: 3-7 days

Actual delivery time depends on destination and shipping method.

Wipe with a soft cloth dampened with water or mild detergent. Avoid organic solvents. Periodically check the sealing ring for damage, and inspect hinges and latches for looseness.

• PP Material: Operating temperature -20°C to 120°C
• ABS Material: Operating temperature -40°C to 100°C

Prolonged use beyond these temperature ranges is not recommended as it may affect material performance.

We recommend inspecting the sealing ring every 2-3 years. If aging, deformation, or damage is found, it should be replaced promptly. We supply original replacement sealing rings.

Yes. KeXin protective cases meet airline check-in requirements. The rugged case body protects contents during transit. We recommend locking the latches and confirming the pressure relief valve is closed before checking.