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.

32mm Cordless Tubular Motor with Spring Assist for Roller Shades

Quick Summary

The DOSRON 32mm Cordless Tubular Motor is designed for quiet, reliable, and smart shade control. Featuring a compact design with spring assist, it delivers smooth motion, long battery endurance, and effortless integration with smart-home systems — ideal for residential and commercial automation projects.

Product Overview

32mm Tubular Motor 32mm Cordless Tubular Motor

 The DOSRON 32mm Cordless Tubular Motor with integrated spring assist mechanism is engineered for smooth, quiet, and cordless roller shade operation.
Built for modern interior shading systems, it combines precision torque control, rechargeable convenience, and compact design—ideal for residential and light-commercial installations.
Each unit is factory-calibrated for consistent output and designed for OEM adaptability.


Technical Specifications

Motor System Accessories for Cordless1 Motor System Accessories for Cordless1
Item Property Name Parameter Description
1 Rated Torque 0.4 – 0.7 N·m Stable output with ≤ ±3% variation
2 Noise Level ≤ 40 dB Ultra-quiet performance
3 Battery Capacity 2600 / 5200 mAh 6–9 months on a single charge
4 Protection Rating IP20 Standard indoor protection
5 Charging Port Type-C Fast charging; optional solar input
6 Rated Power 5 W Efficient low-power design
7 Motor Length 396–461 mm Compact installation
8 Operating Temperature 0–40 °C Stable in daily environments

Key Advantages & Features

Applications for Cordless blind curtain Applications for Cordless blind curtain

Consistent Output

Torque precision maintained within ±3%, ensuring stable performance and smooth shade movement across all production batches.

Whisper-Quiet Design

Balanced rotor assembly and low-friction polymer gears keep operational noise below 40 dB, even under load.

Long Battery Endurance

Rechargeable 2600 mAh and 5200 mAh battery options provide 6–9 months of runtime per full charge.
Compatible with Type-C, solar, or power-bank charging.

Smart Control Options

Supports RF remote, push-to-start motion, and optional Tuya / Zigbee / BLE / Wi-Fi gateways for smart home integration.

Easy Installation

LED feedback guides pairing, limit setting, and low-battery indication for faster setup and reduced service calls.


Engineering That Stays Quiet Under Load

Engineering That Stays Quiet Under Load

Precision Gearbox

Low-friction polymer-alloy gears with tuned meshing minimize vibration and ensure torque consistency.

Silent Brake Logic

Electromagnetic braking technology softens start/stop transitions, protecting delicate fabrics from shock or bounce.

Copper Windings

High-purity copper coils improve energy efficiency and reduce temperature rise during continuous operation.

Aluminum Housing

Rigid aluminum casing enhances durability, dampens resonance, and fits compact window shade tubes.


Durability & Safety Protections

remote control interface and smartphone app showing shade automation. remote control interface and smartphone app showing shade automation.
  • Cycle Testing: Validated over 15,000 open/close operations.

  • Thermal Protection: Auto-pause when coils overheat; resumes automatically once safe.

  • Ingress Protection: IP20 standard; optional light-humidity sealing design available.

  • Stall Protection: Automatic torque cutoff during overload or obstruction.


Control & Integration

Control & Integration Control & Integration

RF & Cordless Operation

Up to 15 channels (1–15; “A” for all).
Double-tap on bottom rail activates movement—completely cord-free.
LED indicators provide instant feedback:

  • Blue flash = operation/power

  • Red flash ×2 = low battery

  • Red/Blue ×3 = pairing success

Smart-Home Ready

Optional gateways connect seamlessly with Alexa, Google Home, or Apple HomeKit (via Homebridge) for automated shading control.


Applications

collage showing roller, zebra, and honeycomb shades in home and office interiors collage showing roller, zebra, and honeycomb shades in home and office interiors
  • Cordless Roller Shades

  • Zebra / Sheer Shades

  • Honeycomb Shades

  • Roman / Shangri-La Blinds

  • Residential Smart Homes

  • Light-Commercial Window Systems


OEM & ODM Services

factory and engineering support team images, OEM customization display factory and engineering support team images, OEM customization display

DOSRON offers full customization options, including:

  • Private labeling and branding

  • Custom housing color or logo printing

  • Firmware/protocol adjustments (Tuya / Zigbee / Wi-Fi / BLE)

  • Mechanical interface modifications for specific tube sizes

  • Engineering support & remote training for integration partners


Field Performance Feedback

chart or testimonial layout showing improved user satisfaction

In recent North American OEM deployments, end-user satisfaction increased by 20%, while service calls dropped significantly.
Customers highlighted quieter operation, simpler pairing setup, and improved precision limit learning via LED feedback.


Field Insight: How DOSRON Redefines Precision and Quiet Power in Smart Shade Motors

The 32mm Cordless Tubular Motor by DOSRON represents a new generation of intelligent shading technology — engineered for smooth operation, silent performance, and effortless control.
With spring-assist mechanics and high-efficiency torque balance, it ensures precision movement even in long-term applications.
Every engineering detail — from copper windings to silent gear alignment — reflects DOSRON’s commitment to consistent quality and performance reliability.

Built for smart homes and modern architecture, this tubular motor offers compatibility with multiple control protocols such as RF, Zigbee, BLE, and Wi-Fi.
Its compact design and low noise level make it ideal for luxury interiors, offices, and automated shading systems worldwide.

What Makes It Stand Out:
• Stable torque and spring-assist technology for precision control.
• Whisper-quiet operation below 40dB.
• Long-lasting rechargeable battery with solar charging option.
• OEM/ODM customization for global shading brands and integrators.

Designed and manufactured in China by a facility with over 15 years of motor engineering experience, each DOSRON unit embodies our belief:
“Smart motion begins with precision — and ends with reliability.”

FAQ

Q1: What is the MOQ?
Minimum order quantity is 100 pcs for standard models. Samples available for testing.

Q2: What is the warranty period?
All DOSRON tubular motors include a 5-year warranty for non-human defects.

Q3: Is smart-home integration supported?
Yes. Compatible with Tuya, Zigbee, BLE, or Wi-Fi via dedicated gateways.

Q4: What’s the average delivery time?
Production lead time is typically 20–25 working days for orders under 1,000 units.

Q5: How do I choose the right model?
Send your tube size, fabric weight, and preferred control protocol, and our engineers will match the optimal model and accessories for your system.

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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