Engineering-Grade Cordless Spring System
Dosron provides OEMs and brand manufacturers with efficient, safe, and sustainable window treatment solutions.
R & D
R & D
R & D
R & D
About Us
DOSRON®: Global Leader in Cordless Window Covering Systems
We design and manufacture cordless spring mechanisms and tubular motors for roller shades, honeycomb shades, zebrablinds, and venetian blinds,roman shades and more. Trusted by top international brands, DOSRON delivers scalableOEM/ODM solutions worldwide.
OEM&ODM
Worldwide
OEM&ODM
Worldwide
OEM&ODM
Worldwide
OEM&ODM
Worldwide
OEM&ODM
Worldwide
OEM&ODM
Worldwide
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.
Get in touch
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