ENGINEERING STRUCTURAL BREAKDOWN

Spring System Works in Real Operation
NOTE
  •  ANSI/WCMA A100.1(U.S. Window Covering Safety Standard)
  • CPSC 16 CFR 1260(U.S. Federal Mandatory Cordless Rule)
  • EN 13120(European Child Safety Standard for Window Coverings)
  • AS/NZS 60335.2.97(Australia & New Zealand Safety Standard for Motorized Blinds)

At DOSRON, our cordless systems are engineered to eliminate exposed cords and hazardous loops — reducing strangulation risks at the source. Every architecture is developed in alignment with key global child-safety standards:

  • ANSI/WCMA A100.1(U.S. Window Covering Safety Standard)
  • CPSC 16 CFR 1260(U.S. Federal Mandatory Cordless Rule)
  • EN 13120(European Child Safety Standard for Window Coverings)
  • AS/NZS 60335.2.97(Australia & New Zealand Safety Standard for Motorized Blinds)

Because protecting children is not a feature upgrade.It is the starting point of responsible engineering.

Quick Summary

The Spring Mechanism is the core power source behind a smooth, safe, and elegant cordless honeycomb blind system. Designed and manufactured by DOSRON, this customized solution delivers consistent balance and long-term reliability for both residential and commercial window applications.

Unlike traditional corded systems that rely on external cords, our Cordless Spring Mechanism for Honeycomb Blind uses internal spring tension to achieve effortless lifting and lowering. Built from POM engineering plastic and 301 stainless steel spring, it provides the perfect combination of lightness, durability, and structural precision.

Overview of the Cordless Spring Mechanism

L11 Spring Mechanism for Honeycomb Blind 1" Cord Bases

Redefining the Core of Modern Honeycomb Blind Systems

Every modern blind system relies on one key component: a spring mechanism that ensures consistent tension and stability. DOSRON’s Customized Cordless Spring Mechanism is specifically developed for honeycomb blinds, pleated blinds, and other cordless shading systems.

This innovation eliminates the need for external cords, replacing them with a internal torque system that automatically balances the blind at any height. The result is smooth, silent operation, improved user safety, and long product lifespan—all with a compact and modular design suitable for OEM and ODM customization.

Application Scenarios for the Cordless Spring Mechanism

The DOSRON Cordless Spring Mechanism for Honeycomb Blind has been widely applied in both residential and commercial shading systems, where design aesthetics and safety matter equally.

Honeycomb Blind in Bedroom Honeycomb Blind in Meeting Room

Option 1:House Applications

  • Bedrooms and Living Rooms:quiet operation with child-safe cordless design.
  • Kitchens and Bathrooms:POM + stainless-steel components resist humidity and corrosion.

Option 2:Office and Commercial Environments

  • Meeting Rooms: silent lift operation avoids distraction during presentations.
  • Hotels & Public Facilities: reliable performance ensures consistent alignment and long-lasting operation.

Maintenance and Installation Guide

Installation

  1. Insert the spring mechanisminto the honeycomb blind headrail.
  2. Align and lock the cord bases in the holes of headrail.
  3. Pass the cord of the spring mechanismthrough the cord base and the honeycomb blind fabric.
  4. All components have been assembled.Test lift and drop motion to verify smoothness.

Maintenance Tips

  • Avoid direct exposure to extreme humidity or corrosive environments.
  • Check tension periodically if used in large or heavy blinds.
  • No lubrication is required—POM surface provides self-lubrication.
  • Replace only with original DOSRON-certified components for optimal performance.

 

Technical Specifications of DOSRON Spring Mechanism

Honeycomb&Fabric Roman Blind Test(Base on 84″)
Part No Thickness
/MM
Width
/MM
Developed Length
/MM
Cord Base with 1 Resistance Top Maxium Capacity/g Bottom Rail nont rebound force/g
L11-0.08-84″ 0.08 11 2300 1 800~830 60~70
L11-0.09-84″ 0.09 11 2300 1 950~980 80~100
L11-0.10-84″ 0.10 11 2300 1 1150~1180 130~150
L11-0.11-84″ 0.11 11 2300 1 1300~1330 180~200

Engineering Principle Behind the Spring Mechanism

L11 Spring Box and Cord Bases 1" Cord Base

How the Cordless Spring Mechanism Works

The spring mechanism operates on a controlled energy storage and release system powered by a stainless-steel spiral spring. When you raise or lower the honeycomb blind, the spiral spring coils and uncoils smoothly, storing and releasing energy in a balanced way to offset the fabric’s weight.

Unlike conventional torsion springs that rely on axial twisting, the spiral spring delivers linear torque with high stability, ensuring the blind remains perfectly balanced at any desired height.

The POM housing serves as a durable guide structure, reducing friction and vibration during each motion. This refined engineering design creates a true cordless experience—no motors, no external cords, and no energy consumption, only the consistent and quiet precision of mechanical balance.

Advantages of Mechanical Cordless System

  • Energy-Free Operation: No need for batteries or power supply.
  • Stable Over Time: Maintains elasticity and torque across 10,000+ cycles.
  • Low Maintenance: No lubrication required due to self-lubricating POM material.
  • Universal Adaptability: Fits multiple honeycomb blind head rail

OEM / ODM Integration

DOSRON provides engineering customization services for global honeycomb blind manufacturers, specializing in spiral spring mechanisms.
Our OEM / ODM support covers:

  • Customized torque calibration for precise balance and lifting force
  • Spring housing interface adaptation for different headrail and mounting profiles
  • Modular housing mold development to match various design standards
  • Mass production with ISO-controlled assembly and quality testing

Each spiral spring mechanism can be adjusted for torque range, spring thickness, or blind fabric dimension to perfectly integrate into your existing honeycomb blind systems.

Key Benefits of DOSRON Cordless Spring Mechanism

(图片)

Improved Safety

The cordless spring mechanism eliminates external cords, fully addressing global safety regulations. Especially in the U.S. and EU, child-safety compliance is a must for blinds entering the residential market.

Cost Efficiency

A mechanical spring solution requires no battery, no wiring, and no external controller, reducing total manufacturing cost by up to 40%.

Simplified Assembly

The modular design of the DOSRON spring mechanism allows fast integration into existing honeycomb systems.
Installers can finish assembly in less than two minutes—reducing labor time and improving production efficiency.

Longevity and Reliability

All components undergo torque endurance testing and aging resistance evaluation under ISO 9001 quality control. The stainless spring resists fatigue deformation, ensuring consistent tension through years of use.

Product Testing & Quality Control

(图片)

Lifecycle Testing

Each DOSRON Spring Mechanism is tested for over 10,000 lift/lower cycles, simulating real-world conditions. The torque output remains within ±5%, ensuring stability for years.

Material Verification

  • POM Plastic: tested for tensile strengthand impact performance.
  • 301 Stainless Steel Spiral Spring: delivers stable elasticity and long-term torque consistency, ensuring reliable performance throughout extended use.

International Certification

DOSRON’s production line complies with:

(证书图片)

  • GB/T 19001-2016/ISO 9001:2015 Standard
  • GB/T24001-2016/ISO14001:2015
  • ANSI/WCMA A100.1 Child-Safety Standard

Why Choose DOSRON Spring Mechanism

Honeycomb-Blind Honeycomb Blind Headrail

Core Advantages of the Cordless Design

1. Cordless & Child-Safe Operation

The Cordless Spring Mechanism eliminates external cords and bead chains, reducing over 90% of cord entanglement risks. This design fully complies with U.S. ANSI/WCMA A100.1 child-safety standards, ensuring a safer indoor environment for homes, schools, and childcare facilities.

2. Smooth & Silent Performance

By utilizing an optimized torque-control spring mechanism, each movement of the honeycomb blind feels seamless and low-noise. This makes it ideal for spaces requiring quiet operation such as bedrooms, offices, or meeting rooms.

3. Long Life Cycle & Stable Torque

The 301 stainless-steel spiral spring delivers consistent torque output within ±5%, ensuring smooth recoil and stable balance throughout cycles. Its spiral configuration minimizes tension loss and provides sustained elasticity, making the spring mechanism exceptionally reliable for long-term use in both light and heavy honeycomb blinds.

4. Precision Materials

  • POM engineering plastichousing ensures excellent dimensional stability and resistance to deformation.
  • 301 stainless steel springprovides outstanding corrosion resistance and elasticity retention under load.

5. Customization Flexibility

DOSRON offers customized spring tension to match specific fabric weights and product designs. Whether for small household blinds or large commercial honeycomb panels, every spring system can be optimized for your exact requirements.

Field Insight

Why the DOSRON Spring Mechanism Leads the Industry

  • Cordless and child-safe design meets international safety requirements.
  • Durable POM + 301 stainless steel ensures long-term reliability.
  • Smooth, silent operation suitable for premium interiors.
  • 10,000+ tested life cycles with consistent torque control.
  • Fully customizable for OEM/ODM applications.
  • Energy-free, maintenance-free mechanical balance.
  • Supported by ISO 9001 quality and RoHS environmental compliance.

Whether you’re a blind manufacturer, distributor, or interior system integrator, the Customized Cordless Spring Mechanism for Honeycomb Blind from DOSRON delivers superior performance, safety, and long-term value.

FAQ — Everything About the Spring Mechanism

Q1: Can this spring mechanism fit all honeycomb blinds?
Yes. The DOSRON spring mechanism fits most standard tube diameters and can be customized for special headrail structures.

Q2: What is the expected service life?
It is tested for over 10,000 operation cycles under normal usage, maintaining stable torque output.

Q3: Is the product suitable for commercial blinds?
Absolutely. Many office and hotel shading systems use the DOSRON cordless spring mechanism for silent and maintenance-free performance.

Q4: What makes it different from other spring systems?
Precision stainless-steel material, ISO-controlled torque testing, and customizable mechanical calibration distinguish DOSRON from generic suppliers.

Q5: How does it ensure child safety?
The cordless structure removes hanging cords completely, preventing entanglement risks and complying with global child-safety standards.

Capacity & Drop

R32 spring box Capacity & Drop

Spring Box PN.

Maximum Capacity /g

Support Maximum Drop /inch

Support Maximum Drop /cm

0.07*16*2000

   

0.08*16*2000

   

0.09*16*2000

   

0.10*16*2000

   

0.11*16*2000

   

 

R38 spring box Capacity & Drop

Spring Box PN.

Maximum Capacity /g

Support Maximum Drop /inch

Support Maximum Drop /cm

0.09*16*2000

   

0.10*16*2000

   

0.11*16*2000

   

0.12*16*2000

   

Why Us?

This will help you understand the differences between our products and those currently on the market.

Item

Electric tubular motors for cordless Spring Mechanism Roller BlindVSElectric tubular motors for cordless Spring Mechanism Roller BlindVSElectric tubular motors for cordless Spring Mechanism Roller Blind

Stablity

   

Force compensate

   

Assembly Safety

   

SKU

   

Lifecycle

   

Cost

   

Operation

   

Patents & Certifications

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.

Get in touch

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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