Question 1

Are you a trading company or manufacturer?

Accepted Answer

We are a factory.

Question 2

How do I choose the right protective cover or drag chain model?

Accepted Answer

Selection depends on stroke length, load type, and environmental requirements. We provide a free selection tool and one-on-one engineering guidance.

Question 3

Which is better, a nylon bellows cover or a stainless steel bellows cover?

Accepted Answer

Nylon covers are lightweight, corrosion-resistant, and cost-effective for general environments. Stainless steel covers are high-temperature and impact-resistant for heavy-load or corrosive environments.

Question 4

How do I calculate the bend radius of a drag chain?

Accepted Answer

The formula is cable diameter multiplied by 10. For example, a 20mm cable requires a minimum bend radius of 200mm. We offer CAD simulation verification.

Question 5

Do you support non-standard customization? What is the turnaround time?

Accepted Answer

Yes, we support full customization. Standard turnaround is 7-15 days, and expedited orders can be completed in 3-5 days.

Question 6

What should I do if the bellows cover makes a grinding noise after installation?

Accepted Answer

Check for insufficient lubrication and use silicone-based lubricant. If assembly deviation is suspected, contact technical support for remote debugging.

Question 7

Cables in the drag chain are frequently worn. How can I resolve this?

Accepted Answer

Check for overloading, add separators to prevent friction, or use highly flexible cables designed for this application.

Question 8

How often should the bellow cover be replaced?

Accepted Answer

Nylon covers typically last 3-5 years, while stainless steel covers last 5-8 years, depending on the usage environment. We offer free lifespan assessment.

Question 9

Is the product in stock? What is the delivery time?

Accepted Answer

If in stock, delivery is 5-10 days. If not in stock, it is 15-20 days, depending on the quantity.

Question 10

How do I resolve product quality issues?

Accepted Answer

Send photos or videos of the issue to our customer service email. We will provide a solution within 24 hours, including replacement, return, or on-site service.

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