Quick Summary
The DOSRON 38mm Cordless Manual Roller Blinds Spring Lift Mechanism offers smooth and reliable lifting for bedroom applications. Its compact design combines a constant-force spring with a precision-engineered mechanism, ensuring safe, child-friendly operation and effortless control. The mechanism provides whisper-quiet functionality and extended durability, perfect for residential use.
Product Overview
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Enhance your bedroom with the DOSRON 38mm Cordless Manual Roller Blinds Spring Lift Mechanism, ideal for windows that require a streamlined, safe, and silent solution. The precision-engineered spring core ensures smooth, stable lifting, while the cordless design ensures compliance with child safety standards.
Technical Specifications
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| Series | Spring Model | Maximum Tension | Itinerary Reference |
|---|---|---|---|
| Roller Blinds A Series | 38RB-09-350 | 350 | 112″-2800mm |
| 38RB-10-500 | 500 | 102″-2600mm | |
| 38RB-11-600 | 600 | 96″-2400mm | |
| 38RB-12-700 | 700 | 96″-2400mm | |
| Zebra Blinds B Series | 38ZB-07-350 | 250 | 96″-2400mm |
| 38ZB-08-350 | 350 | 84″-2130mm | |
| 38ZB-09-400 | 400 | 72″-1830mm | |
| 38ZB-10-450 | 450 | 64″-1620mm | |
| 38ZB-11-550 | 550 | 60″-1524mm | |
| 38ZB-12-700 | 700 | 54″-1370mm |
All spring systems are rigorously tested for over 50,000 lift cycles to guarantee smooth, reliable performance and precision stability.
Key Advantages & Features
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Stable Torque Performance
Ensures smooth, balanced operation with no sudden rebound or drag, creating an optimal user experience.
Whisper-Quiet Design
The system operates at less than 40dB, ensuring quiet functionality in both residential and office environments.
Durable Construction
The combination of 301 stainless steel and POM housing guarantees durability, longevity, and minimal wear over time.
Easy Installation
The compact 32mm modular design allows for seamless integration into various blind types, reducing assembly time for OEMs and installers.
Maintenance and Installation Guide
Precision Spring Core
The spring is engineered for constant torque, ensuring the shade stays at any height without slipping or bouncing.
Friction-Optimized Housing
Engineered with a low-resistance POM casing to minimize friction during operation and protect internal components from dust and wear.
Silent Braking Control
A self-balancing damping mechanism absorbs start/stop impacts, ensuring a smooth, quiet operation.
Aluminum End Caps
Lightweight and anodized for enhanced structural stability, ensuring a perfect fit with roller tubes.
Durability & Safety Protections
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- Cycle Testing: Validated for over 10,000 operations under full load.
- Thermal Stability: Materials tested to maintain elasticity from 0–40°C.
- Safety Compliance: Compliant with CPSC 16 CFR 1260 and EN 13120 standards.
- Corrosion Resistance: All metallic parts pass salt-spray testing for maximum durability.
Applications
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- Roller Blinds
- Zebra / Sheer Blinds
- Honeycomb Blinds
- Roman / Shangri-La Shades
- Residential and Office Installations
- OEM / ODM Blind Systems
OEM & ODM Services
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DOSRON offers comprehensive OEM/ODM support, including:
- Private labeling and logo customization
- Custom torque range and spring ratio design
- Compatibility adjustments for various blind tubes
- Engineering training and technical documentation
Field Performance Feedback
In recent OEM applications, end-user satisfaction improved by 18% due to quieter operation and smoother lift motion. Installers noted faster setup times and reduced after-sales adjustments compared to traditional corded systems.
Field Insight: How DOSRON Redefines Quiet Precision in Cordless Spring Systems
The DOSRON 38mm Cordless Manual Roller Blinds Spring Lift Mechanism represents a new standard in silent and stable window shade technology — integrating precision-engineered torque balance and noise-reduction mechanics for seamless operation.
• Consistent torque with smooth, rebound-free lifting.
• Whisper-quiet operation below 40dB.
• 10,000+ cycle endurance testing.
• Full OEM/ODM customization and engineering support.
Designed and assembled in Xiamen, China, each DOSRON system embodies our belief: “Smart motion begins with precision — and endures with silence.”
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 spring mechanisms include a 5-year warranty for non-human defects.
Q3: Do you offer customization?
Yes. We provide OEM/ODM services including torque tuning, branding, and structure redesign.
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 desired lifting strength, and our engineers will recommend the most suitable spring model.
