1. Accept OEM&ODM, Customized Service

2. Three years warranty

3. Manual cordless operation, safe for children and pets

4. Wholesale price, small MOQ

5. Our cordless manual spring mechanism components can be applied to many kinds of roller shades, zebra blinds, roman shades, etc. 

  • Item No :

    32mm

  • Order(MOQ) :

    100pcs

  • Payment :

    T/T, Credit Card, etc

  • Product Origin :

    China

  • Color :

    Customized

  • Shipping Port :

    Xiamen

  • Lead Time :

    30 days

  • Weight :

    Customized

1. Factory wholesale price

2. Accept small batch customization

3. Three years warranty

  • Item No :L22
  • Order(MOQ) :100pcs
  • Payment :T/T, Credit Card, etc
  • Product Origin :China
  • Color :Customized
  • Shipping Port :Xiamen
  • Lead Time :30 days
  • Weight :Customized
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If you are interested in our solutions, please leave us a message. Let us provide a complete solution tailored to your specific situation.

Frequently Asked Question about Dosron

Q1: Is this Cordless Spring Drive suitable for motorized zebra blinds?

No. This system is engineered for manual cordless zebra blinds. Hybrid motor-spring platforms use different control logic.

Q2: How many Spring Boxes should I use?

It depends on measured fabric + bottom rail weight and required drop. Use the selection table to choose model and quantity per Shaft.

Q3: Why is pre-winding required before installation?

Pre-winding stores initial energy so the system enters the intended force band immediately. The Pin locks the pre-tension state.

Q4: Can a stronger Brake solve drift if the spring is mismatched?

Not reliably. The Spring Box defines the force band; the Brake only governs motion within it. Correct selection comes first.

Q5: Can different Spring Box models be mixed on one Shaft?

Yes, but only with proper load calculations to keep force distribution stable across the full travel.

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