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, nylon or stainless steel bellows cover?

Accepted Answer

Nylon is lightweight, corrosion-resistant, and cost-effective for general environments. Stainless steel is 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 and what is the turnaround time?

Accepted Answer

Yes, we support full customization for dimensions, materials, and mounting. Standard time is 7-15 days, with expedited orders in 3-5 days.

Question 6

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

Accepted Answer

Check for insufficient lubrication and use silicone-based lubricant, or contact technical support for remote debugging if there is an assembly deviation.

Question 7

How can I resolve frequent cable wear in the drag chain?

Accepted Answer

Check for overloading, add separators to prevent friction, and use highly flexible cables compatible with the product.

Question 8

How often should the bellow cover be replaced?

Accepted Answer

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

Question 9

Is the product in stock and what is the delivery time?

Accepted Answer

Delivery is 5-10 days if in stock, or 15-20 days if not in stock, depending on quantity.

Question 10

How do I resolve product quality issues?

Accepted Answer

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

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