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Cordless Lift System Applicable to roller blind systems

DOSRON cordless lift systems system applicable to roller blind systems is a hidden lift platform for OEM roller blind brands that want safe, quiet, and premium operation without visible chains.
Using an internal spring-balanced module (with optional low-voltage motor), it supports Ø32 and Ø38 mm tubes, typical residential and light-commercial sizes, and a wide range of fabrics.
The design keeps façades clean, improves child and pet safety, and simplifies installation, making it a strong backbone for next-generation cordless roller blind collections.

HOTTAGS: child safe roller blind hardware, cordless lift systems system applicable to roller blind systems, cordless roller blind lift system, cordless window coverings for roller shades, OEM ODM cordless lift system, Roller Blind Spring, Roller Blinds Parts Factory, Roller Blinds Spring, roller shade spring mechanism, Roller Shades Hardware Kit, spring loaded roller blinds

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Cordless Spring-Driven Venetian Blind System

Cordless Operation: Enjoy a clutterfree window treatment with no cords to tug or tangled chains. Adjust the blinds effortlessly with a simple push or pull motion.

SpringDriven Mechanism: The builtin spring system provides smooth and reliable operation without the need for motors or external power sources.

Precise Light Control: Tilt the slats easily to control the amount of natural light entering your room, from fully open to completely closed.

Universal Fit Design: Designed to be easily installed inside or outside most standard window frames without requiring professional help.

Durable Construction: Made from highquality aluminum or PVC, the slats are built to resist bending, warping, and fading over time.

HOTTAGS: best price cordless venetian blinds with spring, child safe cordless spring blinds, cordless spring blind system wholesale supplier, Cordless Spring-Driven Venetian Blind System, free samples cordless venetian blinds

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The Flat-Mount Cordless Spring System for Fabric Roman Blinds

Enhanced Safety for Families: The most significant benefit is the elimination of dangerous cords, creating a safer environment for children and pets and providing peace of mind for parents and pet owners.
Sleek, Modern Aesthetic: The cordless and flat-mount design offers a minimalist, uncluttered look that elevates the style of any room. It allows your beautiful fabric and the window itself to be the focal point.
Effortless and Quiet Operation: Enjoy incredibly smooth and silent adjustment of your blinds. The spring system is calibrated for consistent performance, making it easy for everyone in the household to use.
Improved Durability: With fewer moving parts exposed (no cords to tangle or pull out), the internal spring mechanism is protected, leading to a longer product lifespan and reduced wear and tear.
Easy Maintenance: The absence of cords simplifies cleaning. Dusting or vacuuming the fabric is straightforward, and there are no cords to wipe down or untangle.
Universal Appeal: Its user-friendly design is ideal for hard-to-reach windows, such as above kitchen sinks or behind large furniture, where operating cords would be inconvenient.

Item No :
L4
Order(MOQ) :
100pcs
Payment :
T/T, Credit Card. etc
Product Origin :
China
Color :
Customized
Shipping Port :
Xiamen
Lead Time :
15 days
Weight :
Customized

HOTTAGS: Fabric Roman Blind Spring System, Roman Shade Cord Suspension Hardware, Roman Shade Spring System, The Flat-Mount Cordless Spring System

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Cordless Spring System for Roman Blinds

A Spring System for cordless Roman blinds is not just a lift aid—it is a force-balance mechanism designed
to manage cord winding, rotation synchronization, and stable pull-and-stop positioning without exposed operating cords.

HOTTAGS: child safe blinds, Constant Force Spring, Cord Bundle, Cord Reel, Cordless Roman Blinds, cordless spring system, OEM-Window-Coverings, Pull And Stop Operation, Roman shade mechanism, Spring System, T1 Spring Box

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spring loaded motor for cordless shades

Cordless curtain spring drive motor, powered by a spring, requires no power source.

Applications: Suitable for fabrics, tulle curtains, etc., with a load capacity of 5-10kg (customizable), a travel range of 0-2 meters, and a spring life of ≥10,000 cycles.

Casing: ABS, supports side/top mounting, quiet operation ≤30dB, and a cordless design for added safety and easy installation.

Warranty: 2-3 years, compatible with multiple tracks.

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T Series Cordless Spring Mechanism for Bamboo Roman Shade

Cordless Spring Mechanism engineered for bamboo Roman shades:
constant-force balance, smooth pull-and-stop control, and safer interiors with no external hanging cords.

HOTTAGS: Bamboo Roman Shade, child-safe window coverings, Constant Force Spring, cordless spring mechanism, Manual Cordless Lift, Pull And Stop System, Roman Shade Hardware

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Small MOQ Bespoke Semi-automatic 38mm Roller Blinds Spring Kit China Manufacturer

1. Cordless and manual operation for safety and convenience.

2. Energy-efficient, eco-friendly, and quiet.

3. Allows free hovering and stopping at any desired position.

4. Provides a smooth tactile experience.

Item No :

38mm
Order(MOQ) :

100pcs
Payment :

T/T, Credit Card, etc
Product Origin :

China
Color :

Customized
Shipping Port :

Xiamen
Lead Time :

15 days
Weight :

Customized

HOTTAGS: Roller Blind Spring Components, Roller Blinds Spring Kit, Roller Blinds Tension System, Roller Shade Spring Assembly, Roller Shades Lift Mechanism, Roller Shades Lifting System

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R38L Spring Lift Mechanism for Cordless Roller Shades

Spring Lift Mechanism solutions are the foundation of modern cordless roller shade systems.
The R38L Spring Lift Mechanism is a heavy-duty, modular solution developed for large and heavy roller shades,
designed specifically for professional OEM window covering manufacturers.

HOTTAGS: Child Safe Roller Blinds, Constant Force Spring, Cordless Roller Shades, Heavy Duty Shade System, OEM-Window-Coverings, Roller Blind Hardware, Roller Blinds Lift System Parts, Roller Shade Tension Control, Roller Shades Hardware Manufacturer, Roller Shades Lift Control Mechanism, Roller Shades Spring Assembly Kit, Roller Shades Spring Lift System, Spring Box System, Spring Lift Mechanism

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Electric tubular motors for cordless Spring Mechanism Roller Blinds

1. First dual-function blinds motor on the market.

2. U.S. patent secured.

3.Custom services available (OEM & ODM).

4. Five-year warranty included.

5. Compatible with zebra blinds, roller shades, and Shangri-La blinds.

Item No :

38mm
Order(MOQ) :

100pcs
Payment :

T/T, Credit Card, etc
Product Origin :

China
Color :

Customized
Shipping Port :

Xiamen
Lead Time :

30 days
Weight :

Customized

HOTTAGS: tubular motor

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New Design Durable Manual Cordless Spring-Operated Roller Blinds Lift System Manufacturer

Get Ready for a Game Changer! Meet the Exciting 2025 Roller Blinds Spring System—It’s Not Your Average Spring, It’s a Whole New Level of Awesome!

Item No :
38mm
Order(MOQ) :
100pcs
Payment :
T/T, Credit Card, etc
Product Origin :
China
Color :
Customized
Shipping Port :
Xiamen
Lead Time :
15 days
Weight :
Customized

HOTTAGS: Custom Roller Blinds Spring Kits, Roller Blinds Hardware Supplier, Roller Blinds Lift System Manufacturer, roller shade spring mechanism, Roller Shades Spring Tension Assembly, Spring-Operated Roller Shades

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Made To Measure User-Friendly Cordless Venetian Blinds Spring System Manufacturer

1. DRAPER, ALDI, Walmart, Target and National Geographic Supplier

2. CE, ROHS, ISO and other product certification

3. 3 years warranty, after-sales technical support

Item No :

L5
Order(MOQ) :

100pcs
Payment :

T/T, Credit Card, etc
Product Origin :

China
Color :

Customized
Shipping Port :

Xiamen
Lead Time :

15 days
Weight :

Customized

HOTTAGS: Parts Of Venetian Blinds, Parts Of Window Blinds, Venetian Blind Roller Mechanism, Venetian Blinds Spring System Manufacturer, Venetian Blinds Spring System Supplier, Venetian Blinds Springs

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32mm Cordless Lift Control For Roller Blinds

The 32mm Cordless Lift Control is an internal spring-driven mechanism for roller blinds, designed to replace traditional cords with a constant force spring and brake system. It enables smooth push-pull operation, stable positioning, and enhanced child safety for OEM roller blind manufacturers.

HOTTAGS: 32mm Roller Blind Accessories, child-safe window coverings, Constant Force Spring, Cordless Lift Control, Cordless Roller Blinds, OEM Blind Components, Roller Blind Spring Mechanism

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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.