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.

Our variable force spring systems for blinds and pleated shades are unique in the marketplace for their extra-long life and unrivaled operating feel. We are committed to creating exclusive lifting solutions based on the size of your drapery. Our drapery spring products and lift systems have revolutionized cordless draperies and roller shades. They not only solve positioning and stopping problems, but also enable more economical, wider size adaptability and simpler installation by reducing complex components. 

 

 

Spring Loaded Roller Blind Mechanism

 

Spring Return Roller Blinds

Specification: 

Product name Cordless Manual Pleated Blinds Spring Lifting System 
Material  POM+301 stainless steel spring
Size L2 System
Installation Type Built-in
Style semi auto spring roller blind
Customized Service  Yes 
Place of origin Xiamen, China
Applicable curtain Pleated Blinds, Roman Blinds, etc 

 

Sprung Roller Blind

 

 

Cordless Spring Roller System

Venetian Blinds System
Series Spring Model Maximum Tension The tail end does not rebound Itinerary reference Service life
venetian blinds L2-10 1200 100 96″ 7500
L2-11 1600 130 6900
L2-12 1800 200 6000
L2-13 2200 350 5900
L2-14 2400 350 5000
L2-15 2550 450 3300
L22-11 2800 300 6900
L22-12 3700 350 6000
L22-13 4000 400 5900
L22-14 4500 700 5000
L22-15 5000 850 84″ 3300

 

Company Profile: 

Xiamen Dosron Technology Co., Ltd was founded in 2014, is located in the beautiful coastal city of Xiamen. It is a high-tech enterprise specializing in the research, development, manufacturing and sales of intelligent motors and control systems for windows. We have a team of 126 professionals dedicated to providing customers with innovative, efficient and reliable intelligent curtain lifting system solutions. Our main products include roller blinds motorized motor, cordless springs roller shades system, intelligent control switches and remote controls. These products, with their intelligent and IoT characteristics, meet the pursuit of convenience, safety and comfort in modern homes. Through continuous technological innovation and R&D investment, our products have been widely used in smart homes, commercial buildings and public facilities. Xiamen Dosron Technology Co., Ltd. has a wide range of customers, including curtain manufacturers, wholesalers and smart home brands. Our products and solutions have won recognition in domestic and foreign markets, and have established solid cooperative relationships with many well-known companies, including DRAPER, ALDI, Walmart, Target and National Geographic. We will promote the development of the smart home industry through continuous technological innovation and excellent customer service, and create a more intelligent and comfortable living experience for users. Friends from all walks of life are welcome to visit our company for guidance. We look forward to working with you to create a better future.

xiamen dosron spring blinds supplier

oem odm custom roller blinds spring

Certification:

spring roller blinds with CE certificate

 

FAQ: 

1. Are you factory or trading company?

We are the factory of motorized tubular motor and manual cordless spring components for all kinds of roller shades, zebra blinds, cellular shades, Shangri-la blinds, etc. 

 

2. How can you guarantee quality?

We have strict quality control for each step, IQC(Incoming Quality Control), PQC (Processing Quality Control) and OQC (Outcoming Quality Control). 

 

3. Why should we buy from you not from other suppliers?

A. Our company has strong research and development capabilities, constantly updating and iterating our products to give our customers a unique market competitiveness in the market. We have developed a cordless roller shades system that is an integrated motorized and manual system and has received a U.S. Patent. This new product will help our customers to get more new customers and increase the repurchase rate of existing customers.

B. Our products can be certified according to the needs of customer’s market. 

C. We have cooperated with many famous brands overseas, such as DRAPER, ALDI,  TARGET,  Walmart, NATIONAL GEOGRAPHIC. So we have the rich experience knowing how to make the products according to their strict quality request. 

 

4. What kind of shipping way can you do? 

We can deliver the goods by sea, air, train and truck. Normally are DHL, FedEx, UPS, door to door, DDU, DDP, etc. 

 

5. What kind of payment do you accept? 

We accept T/T, L/C, Credit Card, MoneyGram, PayPal, Western Union and so on. 

 

6. How can I get samples?

We accept OEM and ODM services, you can discuss with us about your detailed requirements and we can make the sample for you accordingly. 

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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